Nova Configuration OptionsΒΆ

The following is a sample Nova configuration for adaptation and use. It is auto-generated from Nova when this documentation is built, so if you are having issues with an option, please compare your version of Nova with the version of this documentation.

The sample configuration can also be viewed in file form.

[DEFAULT]

#
# From nova.conf
#

# DEPRECATED:
# When returning instance metadata, this is the class that is used
# for getting vendor metadata when that class isn't specified in the individual
# request. The value should be the full dot-separated path to the class to use.
#
# Possible values:
#
# * Any valid dot-separated class path that can be imported.
#  (string value)
# This option is deprecated for removal since 13.0.0.
# Its value may be silently ignored in the future.
#vendordata_driver = nova.api.metadata.vendordata_json.JsonFileVendorData

# DEPRECATED:
# This option is used to enable or disable quota checking for tenant networks.
#
# Related options:
#
# * quota_networks
#  (boolean value)
# This option is deprecated for removal since 14.0.0.
# Its value may be silently ignored in the future.
# Reason:
# CRUD operations on tenant networks are only available when using nova-network
# and nova-network is itself deprecated.
#enable_network_quota = false

# DEPRECATED:
# This option controls the number of private networks that can be created per
# project (or per tenant).
#
# Related options:
#
# * enable_network_quota
#  (integer value)
# Minimum value: 0
# This option is deprecated for removal since 14.0.0.
# Its value may be silently ignored in the future.
# Reason:
# CRUD operations on tenant networks are only available when using nova-network
# and nova-network is itself deprecated.
#quota_networks = 3

#
# This option specifies the name of the availability zone for the
# internal services. Services like nova-scheduler, nova-network,
# nova-conductor are internal services. These services will appear in
# their own internal availability_zone.
#
# Possible values:
#
# * Any string representing an availability zone name
# * 'internal' is the default value
#
#  (string value)
#internal_service_availability_zone = internal

#
# Default compute node availability_zone.
#
# This option determines the availability zone to be used when it is not
# specified in the VM creation request. If this option is not set,
# the default availability zone 'nova' is used.
#
# Possible values:
#
# * Any string representing an availability zone name
# * 'nova' is the default value
#
#  (string value)
#default_availability_zone = nova

# Length of generated instance admin passwords. (integer value)
# Minimum value: 0
#password_length = 12

#
# Time period to generate instance usages for. It is possible to define optional
# offset to given period by appending @ character followed by a number defining
# offset.
#
# Possible values:
#
# *  period, example: ``hour``, ``day``, ``month` or ``year``
# *  period with offset, example: ``month@15`` will result in monthly audits
#    starting on 15th day of month.
#  (string value)
#instance_usage_audit_period = month

#
# Start and use a daemon that can run the commands that need to be run with
# root privileges. This option is usually enabled on nodes that run nova compute
# processes.
#  (boolean value)
#use_rootwrap_daemon = false

#
# Path to the rootwrap configuration file.
#
# Goal of the root wrapper is to allow a service-specific unprivileged user to
# run a number of actions as the root user in the safest manner possible.
# The configuration file used here must match the one defined in the sudoers
# entry.
#  (string value)
#rootwrap_config = /etc/nova/rootwrap.conf

# Explicitly specify the temporary working directory. (string value)
#tempdir = <None>

#
# Determine if monkey patching should be applied.
#
# Related options:
#
# * ``monkey_patch_modules``: This must have values set for this option to
#   have any effect
#  (boolean value)
#monkey_patch = false

#
# List of modules/decorators to monkey patch.
#
# This option allows you to patch a decorator for all functions in specified
# modules.
#
# Possible values:
#
# * nova.compute.api:nova.notifications.notify_decorator
# * nova.api.ec2.cloud:nova.notifications.notify_decorator
# * [...]
#
# Related options:
#
# * ``monkey_patch``: This must be set to ``True`` for this option to
#   have any effect
#  (list value)
#monkey_patch_modules = nova.compute.api:nova.notifications.notify_decorator

#
# Defines which driver to use for controlling virtualization.
#
# Possible values:
#
# * ``libvirt.LibvirtDriver``
# * ``xenapi.XenAPIDriver``
# * ``fake.FakeDriver``
# * ``ironic.IronicDriver``
# * ``vmwareapi.VMwareVCDriver``
# * ``hyperv.HyperVDriver``
#  (string value)
#compute_driver = <None>

#
# Allow destination machine to match source for resize. Useful when
# testing in single-host environments. By default it is not allowed
# to resize to the same host. Setting this option to true will add
# the same host to the destination options. Also set to true
# if you allow the ServerGroupAffinityFilter and need to resize.
#  (boolean value)
#allow_resize_to_same_host = false

#
# Availability zone to use when user doesn't specify one.
#
# This option is used by the scheduler to determine which availability
# zone to place a new VM instance into if the user did not specify one
# at the time of VM boot request.
#
# Possible values:
#
# * Any string representing an availability zone name
# * Default value is None.
#  (string value)
#default_schedule_zone = <None>

#
# Image properties that should not be inherited from the instance
# when taking a snapshot.
#
# This option gives an opportunity to select which image-properties
# should not be inherited by newly created snapshots.
#
# Possible values:
#
# * A list whose item is an image property. Usually only the image
#   properties that are only needed by base images can be included
#   here, since the snapshots that are created from the base images
#   doesn't need them.
# * Default list: ['cache_in_nova', 'bittorrent']
#  (list value)
#non_inheritable_image_properties = cache_in_nova,bittorrent

# DEPRECATED:
# This option is used to decide when an image should have no external
# ramdisk or kernel. By default this is set to 'nokernel', so when an
# image is booted with the property 'kernel_id' with the value
# 'nokernel', Nova assumes the image doesn't require an external kernel
# and ramdisk.
#  (string value)
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# When an image is booted with the property 'kernel_id' with the value
# 'nokernel', Nova assumes the image doesn't require an external kernel and
# ramdisk. This option allows user to change the API behaviour which should not
# be allowed and this value "nokernel" should be hard coded.
#null_kernel = nokernel

# DEPRECATED:
# When creating multiple instances with a single request using the
# os-multiple-create API extension, this template will be used to build
# the display name for each instance. The benefit is that the instances
# end up with different hostnames. Example display names when creating
# two VM's: name-1, name-2.
#
# Possible values:
#
# * Valid keys for the template are: name, uuid, count.
#  (string value)
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# This config changes API behaviour. All changes in API behaviour should be
# discoverable.
#multi_instance_display_name_template = %(name)s-%(count)d

#
# Maximum number of devices that will result in a local image being
# created on the hypervisor node.
#
# A negative number means unlimited. Setting max_local_block_devices
# to 0 means that any request that attempts to create a local disk
# will fail. This option is meant to limit the number of local discs
# (so root local disc that is the result of --image being used, and
# any other ephemeral and swap disks). 0 does not mean that images
# will be automatically converted to volumes and boot instances from
# volumes - it just means that all requests that attempt to create a
# local disk will fail.
#
# Possible values:
#
# * 0: Creating a local disk is not allowed.
# * Negative number: Allows unlimited number of local discs.
# * Positive number: Allows only these many number of local discs.
#                        (Default value is 3).
#  (integer value)
#max_local_block_devices = 3

#
# A list of monitors that can be used for getting compute metrics.
# You can use the alias/name from the setuptools entry points for
# nova.compute.monitors.* namespaces. If no namespace is supplied,
# the "cpu." namespace is assumed for backwards-compatibility.
#
# Possible values:
#
# * An empty list will disable the feature(Default).
# * An example value that would enable both the CPU and NUMA memory
#   bandwidth monitors that used the virt driver variant:
#   ["cpu.virt_driver", "numa_mem_bw.virt_driver"]
#  (list value)
#compute_monitors =

#
# The default format an ephemeral_volume will be formatted with on creation.
#
# Possible values:
#
# * ``ext2``
# * ``ext3``
# * ``ext4``
# * ``xfs``
# * ``ntfs`` (only for Windows guests)
#  (string value)
#default_ephemeral_format = <None>

#
# Determine if instance should boot or fail on VIF plugging timeout.
#
# Nova sends a port update to Neutron after an instance has been scheduled,
# providing Neutron with the necessary information to finish setup of the port.
# Once completed, Neutron notifies Nova that it has finished setting up the
# port, at which point Nova resumes the boot of the instance since network
# connectivity is now supposed to be present. A timeout will occur if the reply
# is not received after a given interval.
#
# This option determines what Nova does when the VIF plugging timeout event
# happens. When enabled, the instance will error out. When disabled, the
# instance will continue to boot on the assumption that the port is ready.
#
# Possible values:
#
# * True: Instances should fail after VIF plugging timeout
# * False: Instances should continue booting after VIF plugging timeout
#  (boolean value)
#vif_plugging_is_fatal = true

#
# Timeout for Neutron VIF plugging event message arrival.
#
# Number of seconds to wait for Neutron vif plugging events to
# arrive before continuing or failing (see 'vif_plugging_is_fatal').
#
# Related options:
#
# * vif_plugging_is_fatal - If ``vif_plugging_timeout`` is set to zero and
#   ``vif_plugging_is_fatal`` is False, events should not be expected to
#   arrive at all.
#  (integer value)
# Minimum value: 0
#vif_plugging_timeout = 300

# Path to '/etc/network/interfaces' template.
#
# The path to a template file for the '/etc/network/interfaces'-style file,
# which
# will be populated by nova and subsequently used by cloudinit. This provides a
# method to configure network connectivity in environments without a DHCP
# server.
#
# The template will be rendered using Jinja2 template engine, and receive a
# top-level key called ``interfaces``. This key will contain a list of
# dictionaries, one for each interface.
#
# Refer to the cloudinit documentaion for more information:
#
#   https://cloudinit.readthedocs.io/en/latest/topics/datasources.html
#
# Possible values:
#
# * A path to a Jinja2-formatted template for a Debian '/etc/network/interfaces'
#   file. This applies even if using a non Debian-derived guest.
#
# Related options:
#
# * ``flat_inject``: This must be set to ``True`` to ensure nova embeds network
#   configuration information in the metadata provided through the config drive.
#  (string value)
#injected_network_template = $pybasedir/nova/virt/interfaces.template

#
# The image preallocation mode to use.
#
# Image preallocation allows storage for instance images to be allocated up
# front
# when the instance is initially provisioned. This ensures immediate feedback is
# given if enough space isn't available. In addition, it should significantly
# improve performance on writes to new blocks and may even improve I/O
# performance to prewritten blocks due to reduced fragmentation.
#
# Possible values:
#
# * "none"  => no storage provisioning is done up front
# * "space" => storage is fully allocated at instance start
#  (string value)
# Allowed values: none, space
#preallocate_images = none

#
# Enable use of copy-on-write (cow) images.
#
# QEMU/KVM allow the use of qcow2 as backing files. By disabling this,
# backing files will not be used.
#  (boolean value)
#use_cow_images = true

#
# Force conversion of backing images to raw format.
#
# Possible values:
#
# * True: Backing image files will be converted to raw image format
# * False: Backing image files will not be converted
#
# Related options:
#
# * ``compute_driver``: Only the libvirt driver uses this option.
#  (boolean value)
#force_raw_images = true

#
# Name of the mkfs commands for ephemeral device.
#
# The format is <os_type>=<mkfs command>
#  (multi valued)
#virt_mkfs =

#
# Enable resizing of filesystems via a block device.
#
# If enabled, attempt to resize the filesystem by accessing the image over a
# block device. This is done by the host and may not be necessary if the image
# contains a recent version of cloud-init. Possible mechanisms require the nbd
# driver (for qcow and raw), or loop (for raw).
#  (boolean value)
#resize_fs_using_block_device = false

# Amount of time, in seconds, to wait for NBD device start up. (integer value)
# Minimum value: 0
#timeout_nbd = 10

#
# Location of cached images.
#
# This is NOT the full path - just a folder name relative to '$instances_path'.
# For per-compute-host cached images, set to '_base_$my_ip'
#  (string value)
#image_cache_subdirectory_name = _base

# Should unused base images be removed? (boolean value)
#remove_unused_base_images = true

#
# Unused unresized base images younger than this will not be removed.
#  (integer value)
#remove_unused_original_minimum_age_seconds = 86400

#
# Generic property to specify the pointer type.
#
# Input devices allow interaction with a graphical framebuffer. For
# example to provide a graphic tablet for absolute cursor movement.
#
# If set, the 'hw_pointer_model' image property takes precedence over
# this configuration option.
#
# Possible values:
#
# * None: Uses default behavior provided by drivers (mouse on PS2 for
#         libvirt x86)
# * ps2mouse: Uses relative movement. Mouse connected by PS2
# * usbtablet: Uses absolute movement. Tablet connect by USB
#
# Related options:
#
# * usbtablet must be configured with VNC enabled or SPICE enabled and SPICE
#   agent disabled. When used with libvirt the instance mode should be
#   configured as HVM.
#   (string value)
# Allowed values: <None>, ps2mouse, usbtablet
#pointer_model = usbtablet

#
# Defines which physical CPUs (pCPUs) can be used by instance
# virtual CPUs (vCPUs).
#
# Possible values:
#
# * A comma-separated list of physical CPU numbers that virtual CPUs can be
#   allocated to by default. Each element should be either a single CPU number,
#   a range of CPU numbers, or a caret followed by a CPU number to be
#   excluded from a previous range. For example:
#
#     vcpu_pin_set = "4-12,^8,15"
#  (string value)
#vcpu_pin_set = <None>

#
# Number of huge/large memory pages to reserved per NUMA host cell.
#
# Possible values:
#
# * A list of valid key=value which reflect NUMA node ID, page size
#   (Default unit is KiB) and number of pages to be reserved.
#
#     reserved_huge_pages = node:0,size:2048,count:64
#     reserved_huge_pages = node:1,size:1GB,count:1
#
#   In this example we are reserving on NUMA node 0 64 pages of 2MiB
#   and on NUMA node 1 1 page of 1GiB.
#  (dict value)
#reserved_huge_pages = <None>

#
# Amount of disk resources in MB to make them always available to host. The
# disk usage gets reported back to the scheduler from nova-compute running
# on the compute nodes. To prevent the disk resources from being considered
# as available, this option can be used to reserve disk space for that host.
#
# Possible values:
#
# * Any positive integer representing amount of disk in MB to reserve
#   for the host.
#  (integer value)
# Minimum value: 0
#reserved_host_disk_mb = 0

#
# Amount of memory in MB to reserve for the host so that it is always available
# to host processes. The host resources usage is reported back to the scheduler
# continuously from nova-compute running on the compute node. To prevent the
# host
# memory from being considered as available, this option is used to reserve
# memory for the host.
#
# Possible values:
#
# * Any positive integer representing amount of memory in MB to reserve
#   for the host.
#  (integer value)
# Minimum value: 0
#reserved_host_memory_mb = 512

#
# Number of physical CPUs to reserve for the host. The host resources usage is
# reported back to the scheduler continuously from nova-compute running on the
# compute node. To prevent the host CPU from being considered as available,
# this option is used to reserve random pCPU(s) for the host.
#
# Possible values:
#
# * Any positive integer representing number of physical CPUs to reserve
#   for the host.
#  (integer value)
# Minimum value: 0
#reserved_host_cpus = 0

#
# This option helps you specify virtual CPU to physical CPU allocation ratio.
#
# From Ocata (15.0.0) this is used to influence the hosts selected by
# the Placement API. Note that when Placement is used, the CoreFilter
# is redundant, because the Placement API will have already filtered
# out hosts that would have failed the CoreFilter.
#
# This configuration specifies ratio for CoreFilter which can be set
# per compute node. For AggregateCoreFilter, it will fall back to this
# configuration value if no per-aggregate setting is found.
#
# NOTE: This can be set per-compute, or if set to 0.0, the value
# set on the scheduler node(s) or compute node(s) will be used
# and defaulted to 16.0.
#
# NOTE: As of the 16.0.0 Pike release, this configuration option is ignored
# for the ironic.IronicDriver compute driver and is hardcoded to 1.0.
#
# Possible values:
#
# * Any valid positive integer or float value
#  (floating point value)
# Minimum value: 0
#cpu_allocation_ratio = 0.0

#
# This option helps you specify virtual RAM to physical RAM
# allocation ratio.
#
# From Ocata (15.0.0) this is used to influence the hosts selected by
# the Placement API. Note that when Placement is used, the RamFilter
# is redundant, because the Placement API will have already filtered
# out hosts that would have failed the RamFilter.
#
# This configuration specifies ratio for RamFilter which can be set
# per compute node. For AggregateRamFilter, it will fall back to this
# configuration value if no per-aggregate setting found.
#
# NOTE: This can be set per-compute, or if set to 0.0, the value
# set on the scheduler node(s) or compute node(s) will be used and
# defaulted to 1.5.
#
# NOTE: As of the 16.0.0 Pike release, this configuration option is ignored
# for the ironic.IronicDriver compute driver and is hardcoded to 1.0.
#
# Possible values:
#
# * Any valid positive integer or float value
#  (floating point value)
# Minimum value: 0
#ram_allocation_ratio = 0.0

#
# This option helps you specify virtual disk to physical disk
# allocation ratio.
#
# From Ocata (15.0.0) this is used to influence the hosts selected by
# the Placement API. Note that when Placement is used, the DiskFilter
# is redundant, because the Placement API will have already filtered
# out hosts that would have failed the DiskFilter.
#
# A ratio greater than 1.0 will result in over-subscription of the
# available physical disk, which can be useful for more
# efficiently packing instances created with images that do not
# use the entire virtual disk, such as sparse or compressed
# images. It can be set to a value between 0.0 and 1.0 in order
# to preserve a percentage of the disk for uses other than
# instances.
#
# NOTE: This can be set per-compute, or if set to 0.0, the value
# set on the scheduler node(s) or compute node(s) will be used and
# defaulted to 1.0.
#
# NOTE: As of the 16.0.0 Pike release, this configuration option is ignored
# for the ironic.IronicDriver compute driver and is hardcoded to 1.0.
#
# Possible values:
#
# * Any valid positive integer or float value
#  (floating point value)
# Minimum value: 0
#disk_allocation_ratio = 0.0

#
# Console proxy host to be used to connect to instances on this host. It is the
# publicly visible name for the console host.
#
# Possible values:
#
# * Current hostname (default) or any string representing hostname.
#  (string value)
#console_host = <current_hostname>

#
# Name of the network to be used to set access IPs for instances. If there are
# multiple IPs to choose from, an arbitrary one will be chosen.
#
# Possible values:
#
# * None (default)
# * Any string representing network name.
#  (string value)
#default_access_ip_network_name = <None>

#
# Whether to batch up the application of IPTables rules during a host restart
# and apply all at the end of the init phase.
#  (boolean value)
#defer_iptables_apply = false

#
# Specifies where instances are stored on the hypervisor's disk.
# It can point to locally attached storage or a directory on NFS.
#
# Possible values:
#
# * $state_path/instances where state_path is a config option that specifies
#   the top-level directory for maintaining nova's state. (default) or
#   Any string representing directory path.
#  (string value)
#instances_path = $state_path/instances

#
# This option enables periodic compute.instance.exists notifications. Each
# compute node must be configured to generate system usage data. These
# notifications are consumed by OpenStack Telemetry service.
#  (boolean value)
#instance_usage_audit = false

#
# Maximum number of 1 second retries in live_migration. It specifies number
# of retries to iptables when it complains. It happens when an user continuously
# sends live-migration request to same host leading to concurrent request
# to iptables.
#
# Possible values:
#
# * Any positive integer representing retry count.
#  (integer value)
# Minimum value: 0
#live_migration_retry_count = 30

#
# This option specifies whether to start guests that were running before the
# host rebooted. It ensures that all of the instances on a Nova compute node
# resume their state each time the compute node boots or restarts.
#  (boolean value)
#resume_guests_state_on_host_boot = false

#
# Number of times to retry network allocation. It is required to attempt network
# allocation retries if the virtual interface plug fails.
#
# Possible values:
#
# * Any positive integer representing retry count.
#  (integer value)
# Minimum value: 0
#network_allocate_retries = 0

#
# Limits the maximum number of instance builds to run concurrently by
# nova-compute. Compute service can attempt to build an infinite number of
# instances, if asked to do so. This limit is enforced to avoid building
# unlimited instance concurrently on a compute node. This value can be set
# per compute node.
#
# Possible Values:
#
# * 0 : treated as unlimited.
# * Any positive integer representing maximum concurrent builds.
#  (integer value)
# Minimum value: 0
#max_concurrent_builds = 10

#
# Maximum number of live migrations to run concurrently. This limit is enforced
# to avoid outbound live migrations overwhelming the host/network and causing
# failures. It is not recommended that you change this unless you are very sure
# that doing so is safe and stable in your environment.
#
# Possible values:
#
# * 0 : treated as unlimited.
# * Negative value defaults to 0.
# * Any positive integer representing maximum number of live migrations
#   to run concurrently.
#  (integer value)
#max_concurrent_live_migrations = 1

#
# Number of times to retry block device allocation on failures. Starting with
# Liberty, Cinder can use image volume cache. This may help with block device
# allocation performance. Look at the cinder image_volume_cache_enabled
# configuration option.
#
# Possible values:
#
# * 60 (default)
# * If value is 0, then one attempt is made.
# * Any negative value is treated as 0.
# * For any value > 0, total attempts are (value + 1)
#  (integer value)
#block_device_allocate_retries = 60

#
# Number of greenthreads available for use to sync power states.
#
# This option can be used to reduce the number of concurrent requests
# made to the hypervisor or system with real instance power states
# for performance reasons, for example, with Ironic.
#
# Possible values:
#
# * Any positive integer representing greenthreads count.
#  (integer value)
#sync_power_state_pool_size = 1000

#
# Number of seconds to wait between runs of the image cache manager.
#
# Possible values:
# * 0: run at the default rate.
# * -1: disable
# * Any other value
#  (integer value)
# Minimum value: -1
#image_cache_manager_interval = 2400

#
# Interval to pull network bandwidth usage info.
#
# Not supported on all hypervisors. If a hypervisor doesn't support bandwidth
# usage, it will not get the info in the usage events.
#
# Possible values:
#
# * 0: Will run at the default periodic interval.
# * Any value < 0: Disables the option.
# * Any positive integer in seconds.
#  (integer value)
#bandwidth_poll_interval = 600

#
# Interval to sync power states between the database and the hypervisor.
#
# The interval that Nova checks the actual virtual machine power state
# and the power state that Nova has in its database. If a user powers
# down their VM, Nova updates the API to report the VM has been
# powered down. Should something turn on the VM unexpectedly,
# Nova will turn the VM back off to keep the system in the expected
# state.
#
# Possible values:
#
# * 0: Will run at the default periodic interval.
# * Any value < 0: Disables the option.
# * Any positive integer in seconds.
#
# Related options:
#
# * If ``handle_virt_lifecycle_events`` in workarounds_group is
#   false and this option is negative, then instances that get out
#   of sync between the hypervisor and the Nova database will have
#   to be synchronized manually.
#  (integer value)
#sync_power_state_interval = 600

#
# Interval between instance network information cache updates.
#
# Number of seconds after which each compute node runs the task of
# querying Neutron for all of its instances networking information,
# then updates the Nova db with that information. Nova will never
# update it's cache if this option is set to 0. If we don't update the
# cache, the metadata service and nova-api endpoints will be proxying
# incorrect network data about the instance. So, it is not recommended
# to set this option to 0.
#
# Possible values:
#
# * Any positive integer in seconds.
# * Any value <=0 will disable the sync. This is not recommended.
#  (integer value)
#heal_instance_info_cache_interval = 60

#
# Interval for reclaiming deleted instances.
#
# A value greater than 0 will enable SOFT_DELETE of instances.
# This option decides whether the server to be deleted will be put into
# the SOFT_DELETED state. If this value is greater than 0, the deleted
# server will not be deleted immediately, instead it will be put into
# a queue until it's too old (deleted time greater than the value of
# reclaim_instance_interval). The server can be recovered from the
# delete queue by using the restore action. If the deleted server remains
# longer than the value of reclaim_instance_interval, it will be
# deleted by a periodic task in the compute service automatically.
#
# Note that this option is read from both the API and compute nodes, and
# must be set globally otherwise servers could be put into a soft deleted
# state in the API and never actually reclaimed (deleted) on the compute
# node.
#
# Possible values:
#
# * Any positive integer(in seconds) greater than 0 will enable
#   this option.
# * Any value <=0 will disable the option.
#  (integer value)
#reclaim_instance_interval = 0

#
# Interval for gathering volume usages.
#
# This option updates the volume usage cache for every
# volume_usage_poll_interval number of seconds.
#
# Possible values:
#
# * Any positive integer(in seconds) greater than 0 will enable
#   this option.
# * Any value <=0 will disable the option.
#  (integer value)
#volume_usage_poll_interval = 0

#
# Interval for polling shelved instances to offload.
#
# The periodic task runs for every shelved_poll_interval number
# of seconds and checks if there are any shelved instances. If it
# finds a shelved instance, based on the 'shelved_offload_time' config
# value it offloads the shelved instances. Check 'shelved_offload_time'
# config option description for details.
#
# Possible values:
#
# * Any value <= 0: Disables the option.
# * Any positive integer in seconds.
#
# Related options:
#
# * ``shelved_offload_time``
#  (integer value)
#shelved_poll_interval = 3600

#
# Time before a shelved instance is eligible for removal from a host.
#
# By default this option is set to 0 and the shelved instance will be
# removed from the hypervisor immediately after shelve operation.
# Otherwise, the instance will be kept for the value of
# shelved_offload_time(in seconds) so that during the time period the
# unshelve action will be faster, then the periodic task will remove
# the instance from hypervisor after shelved_offload_time passes.
#
# Possible values:
#
# * 0: Instance will be immediately offloaded after being
#      shelved.
# * Any value < 0: An instance will never offload.
# * Any positive integer in seconds: The instance will exist for
#   the specified number of seconds before being offloaded.
#  (integer value)
#shelved_offload_time = 0

#
# Interval for retrying failed instance file deletes.
#
# This option depends on 'maximum_instance_delete_attempts'.
# This option specifies how often to retry deletes whereas
# 'maximum_instance_delete_attempts' specifies the maximum number
# of retry attempts that can be made.
#
# Possible values:
#
# * 0: Will run at the default periodic interval.
# * Any value < 0: Disables the option.
# * Any positive integer in seconds.
#
# Related options:
#
# * ``maximum_instance_delete_attempts`` from instance_cleaning_opts
#   group.
#  (integer value)
#instance_delete_interval = 300

#
# Interval (in seconds) between block device allocation retries on failures.
#
# This option allows the user to specify the time interval between
# consecutive retries. 'block_device_allocate_retries' option specifies
# the maximum number of retries.
#
# Possible values:
#
# * 0: Disables the option.
# * Any positive integer in seconds enables the option.
#
# Related options:
#
# * ``block_device_allocate_retries`` in compute_manager_opts group.
#  (integer value)
# Minimum value: 0
#block_device_allocate_retries_interval = 3

#
# Interval between sending the scheduler a list of current instance UUIDs to
# verify that its view of instances is in sync with nova.
#
# If the CONF option 'scheduler_tracks_instance_changes' is
# False, the sync calls will not be made. So, changing this option will
# have no effect.
#
# If the out of sync situations are not very common, this interval
# can be increased to lower the number of RPC messages being sent.
# Likewise, if sync issues turn out to be a problem, the interval
# can be lowered to check more frequently.
#
# Possible values:
#
# * 0: Will run at the default periodic interval.
# * Any value < 0: Disables the option.
# * Any positive integer in seconds.
#
# Related options:
#
# * This option has no impact if ``scheduler_tracks_instance_changes``
#   is set to False.
#  (integer value)
#scheduler_instance_sync_interval = 120

#
# Interval for updating compute resources.
#
# This option specifies how often the update_available_resources
# periodic task should run. A number less than 0 means to disable the
# task completely. Leaving this at the default of 0 will cause this to
# run at the default periodic interval. Setting it to any positive
# value will cause it to run at approximately that number of seconds.
#
# Possible values:
#
# * 0: Will run at the default periodic interval.
# * Any value < 0: Disables the option.
# * Any positive integer in seconds.
#  (integer value)
#update_resources_interval = 0

#
# Time interval after which an instance is hard rebooted automatically.
#
# When doing a soft reboot, it is possible that a guest kernel is
# completely hung in a way that causes the soft reboot task
# to not ever finish. Setting this option to a time period in seconds
# will automatically hard reboot an instance if it has been stuck
# in a rebooting state longer than N seconds.
#
# Possible values:
#
# * 0: Disables the option (default).
# * Any positive integer in seconds: Enables the option.
#  (integer value)
# Minimum value: 0
#reboot_timeout = 0

#
# Maximum time in seconds that an instance can take to build.
#
# If this timer expires, instance status will be changed to ERROR.
# Enabling this option will make sure an instance will not be stuck
# in BUILD state for a longer period.
#
# Possible values:
#
# * 0: Disables the option (default)
# * Any positive integer in seconds: Enables the option.
#  (integer value)
# Minimum value: 0
#instance_build_timeout = 0

#
# Interval to wait before un-rescuing an instance stuck in RESCUE.
#
# Possible values:
#
# * 0: Disables the option (default)
# * Any positive integer in seconds: Enables the option.
#  (integer value)
# Minimum value: 0
#rescue_timeout = 0

#
# Automatically confirm resizes after N seconds.
#
# Resize functionality will save the existing server before resizing.
# After the resize completes, user is requested to confirm the resize.
# The user has the opportunity to either confirm or revert all
# changes. Confirm resize removes the original server and changes
# server status from resized to active. Setting this option to a time
# period (in seconds) will automatically confirm the resize if the
# server is in resized state longer than that time.
#
# Possible values:
#
# * 0: Disables the option (default)
# * Any positive integer in seconds: Enables the option.
#  (integer value)
# Minimum value: 0
#resize_confirm_window = 0

#
# Total time to wait in seconds for an instance toperform a clean
# shutdown.
#
# It determines the overall period (in seconds) a VM is allowed to
# perform a clean shutdown. While performing stop, rescue and shelve,
# rebuild operations, configuring this option gives the VM a chance
# to perform a controlled shutdown before the instance is powered off.
# The default timeout is 60 seconds.
#
# The timeout value can be overridden on a per image basis by means
# of os_shutdown_timeout that is an image metadata setting allowing
# different types of operating systems to specify how much time they
# need to shut down cleanly.
#
# Possible values:
#
# * Any positive integer in seconds (default value is 60).
#  (integer value)
# Minimum value: 1
#shutdown_timeout = 60

#
# The compute service periodically checks for instances that have been
# deleted in the database but remain running on the compute node. The
# above option enables action to be taken when such instances are
# identified.
#
# Possible values:
#
# * reap: Powers down the instances and deletes them(default)
# * log: Logs warning message about deletion of the resource
# * shutdown: Powers down instances and marks them as non-
#   bootable which can be later used for debugging/analysis
# * noop: Takes no action
#
# Related options:
#
# * running_deleted_instance_poll_interval
# * running_deleted_instance_timeout
#  (string value)
# Allowed values: noop, log, shutdown, reap
#running_deleted_instance_action = reap

#
# Time interval in seconds to wait between runs for the clean up action.
# If set to 0, above check will be disabled. If "running_deleted_instance
# _action" is set to "log" or "reap", a value greater than 0 must be set.
#
# Possible values:
#
# * Any positive integer in seconds enables the option.
# * 0: Disables the option.
# * 1800: Default value.
#
# Related options:
#
# * running_deleted_instance_action
#  (integer value)
#running_deleted_instance_poll_interval = 1800

#
# Time interval in seconds to wait for the instances that have
# been marked as deleted in database to be eligible for cleanup.
#
# Possible values:
#
# * Any positive integer in seconds(default is 0).
#
# Related options:
#
# * "running_deleted_instance_action"
#  (integer value)
#running_deleted_instance_timeout = 0

#
# The number of times to attempt to reap an instance's files.
#
# This option specifies the maximum number of retry attempts
# that can be made.
#
# Possible values:
#
# * Any positive integer defines how many attempts are made.
# * Any value <=0 means no delete attempts occur, but you should use
#   ``instance_delete_interval`` to disable the delete attempts.
#
# Related options:
# * ``instance_delete_interval`` in interval_opts group can be used to disable
#   this option.
#  (integer value)
#maximum_instance_delete_attempts = 5

# DEPRECATED:
# This is the message queue topic that the compute service 'listens' on. It is
# used when the compute service is started up to configure the queue, and
# whenever an RPC call to the compute service is made.
#
# Possible values:
#
# * Any string, but there is almost never any reason to ever change this value
#   from its default of 'compute'.
#  (string value)
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# There is no need to let users choose the RPC topic for all services - there
# is little gain from this. Furthermore, it makes it really easy to break Nova
# by using this option.
#compute_topic = compute

#
# Sets the scope of the check for unique instance names.
#
# The default doesn't check for unique names. If a scope for the name check is
# set, a launch of a new instance or an update of an existing instance with a
# duplicate name will result in an ''InstanceExists'' error. The uniqueness is
# case-insensitive. Setting this option can increase the usability for end
# users as they don't have to distinguish among instances with the same name
# by their IDs.
#
# Possible values:
#
# * '': An empty value means that no uniqueness check is done and duplicate
#   names are possible.
# * "project": The instance name check is done only for instances within the
#   same project.
# * "global": The instance name check is done for all instances regardless of
#   the project.
#  (string value)
# Allowed values: '', project, global
#osapi_compute_unique_server_name_scope =

#
# Enable new services on this host automatically.
#
# When a new service (for example "nova-compute") starts up, it gets
# registered in the database as an enabled service. Sometimes it can be useful
# to register new services in disabled state and then enabled them at a later
# point in time. This option can set this behavior for all services per host.
#
# Possible values:
#
# * ``True``: Each new service is enabled as soon as it registers itself.
# * ``False``: Services must be enabled via a REST API call or with the CLI
#   with ``nova service-enable <hostname> <binary>``, otherwise they are not
#   ready to use.
#  (boolean value)
#enable_new_services = true

#
# Template string to be used to generate instance names.
#
# This template controls the creation of the database name of an instance. This
# is *not* the display name you enter when creating an instance (via Horizon
# or CLI). For a new deployment it is advisable to change the default value
# (which uses the database autoincrement) to another value which makes use
# of the attributes of an instance, like ``instance-%(uuid)s``. If you
# already have instances in your deployment when you change this, your
# deployment will break.
#
# Possible values:
#
# * A string which either uses the instance database ID (like the
#   default)
# * A string with a list of named database columns, for example ``%(id)d``
#   or ``%(uuid)s`` or ``%(hostname)s``.
#
# Related options:
#
# * not to be confused with: ``multi_instance_display_name_template``
#  (string value)
#instance_name_template = instance-%08x

#
# Number of times to retry live-migration before failing.
#
# Possible values:
#
# * If == -1, try until out of hosts (default)
# * If == 0, only try once, no retries
# * Integer greater than 0
#  (integer value)
# Minimum value: -1
#migrate_max_retries = -1

#
# Configuration drive format
#
# Configuration drive format that will contain metadata attached to the
# instance when it boots.
#
# Possible values:
#
# * iso9660: A file system image standard that is widely supported across
#   operating systems. NOTE: Mind the libvirt bug
#   (https://bugs.launchpad.net/nova/+bug/1246201) - If your hypervisor
#   driver is libvirt, and you want live migrate to work without shared storage,
#   then use VFAT.
# * vfat: For legacy reasons, you can configure the configuration drive to
#   use VFAT format instead of ISO 9660.
#
# Related options:
#
# * This option is meaningful when one of the following alternatives occur:
#   1. force_config_drive option set to 'true'
#   2. the REST API call to create the instance contains an enable flag for
#      config drive option
#   3. the image used to create the instance requires a config drive,
#      this is defined by img_config_drive property for that image.
# * A compute node running Hyper-V hypervisor can be configured to attach
#   configuration drive as a CD drive. To attach the configuration drive as a CD
#   drive, set config_drive_cdrom option at hyperv section, to true.
#  (string value)
# Allowed values: iso9660, vfat
#config_drive_format = iso9660

#
# Force injection to take place on a config drive
#
# When this option is set to true configuration drive functionality will be
# forced enabled by default, otherwise user can still enable configuration
# drives via the REST API or image metadata properties.
#
# Possible values:
#
# * True: Force to use of configuration drive regardless the user's input in the
#         REST API call.
# * False: Do not force use of configuration drive. Config drives can still be
#          enabled via the REST API or image metadata properties.
#
# Related options:
#
# * Use the 'mkisofs_cmd' flag to set the path where you install the
#   genisoimage program. If genisoimage is in same path as the
#   nova-compute service, you do not need to set this flag.
# * To use configuration drive with Hyper-V, you must set the
#   'mkisofs_cmd' value to the full path to an mkisofs.exe installation.
#   Additionally, you must set the qemu_img_cmd value in the hyperv
#   configuration section to the full path to an qemu-img command
#   installation.
#  (boolean value)
#force_config_drive = false

#
# Name or path of the tool used for ISO image creation
#
# Use the mkisofs_cmd flag to set the path where you install the genisoimage
# program. If genisoimage is on the system path, you do not need to change
# the default value.
#
# To use configuration drive with Hyper-V, you must set the mkisofs_cmd value
# to the full path to an mkisofs.exe installation. Additionally, you must set
# the qemu_img_cmd value in the hyperv configuration section to the full path
# to an qemu-img command installation.
#
# Possible values:
#
# * Name of the ISO image creator program, in case it is in the same directory
#   as the nova-compute service
# * Path to ISO image creator program
#
# Related options:
#
# * This option is meaningful when config drives are enabled.
# * To use configuration drive with Hyper-V, you must set the qemu_img_cmd
#   value in the hyperv configuration section to the full path to an qemu-img
#   command installation.
#  (string value)
#mkisofs_cmd = genisoimage

# DEPRECATED:
# nova-console-proxy is used to set up multi-tenant VM console access.
# This option allows pluggable driver program for the console session
# and represents driver to use for the console proxy.
#
# Possible values:
#
# * A string representing fully classified class name of console driver.
#  (string value)
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# This option no longer does anything. Previously this option had only two
# valid,
# in-tree values: nova.console.xvp.XVPConsoleProxy and
# nova.console.fake.FakeConsoleProxy. The latter of these was only used in tests
# and has since been replaced.
#console_driver = nova.console.xvp.XVPConsoleProxy

# DEPRECATED:
# Represents the message queue topic name used by nova-console
# service when communicating via the AMQP server. The Nova API uses a message
# queue to communicate with nova-console to retrieve a console URL for that
# host.
#
# Possible values:
#
# * A string representing topic exchange name
#  (string value)
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# There is no need to let users choose the RPC topic for all services - there
# is little gain from this. Furthermore, it makes it really easy to break Nova
# by using this option.
#console_topic = console

# DEPRECATED:
# This option allows you to change the message topic used by nova-consoleauth
# service when communicating via the AMQP server. Nova Console Authentication
# server authenticates nova consoles. Users can then access their instances
# through VNC clients. The Nova API service uses a message queue to
# communicate with nova-consoleauth to get a VNC console.
#
# Possible Values:
#
# * 'consoleauth' (default) or Any string representing topic exchange name.
#  (string value)
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# There is no need to let users choose the RPC topic for all services - there
# is little gain from this. Furthermore, it makes it really easy to break Nova
# by using this option.
#consoleauth_topic = consoleauth

# DEPRECATED: The driver to use for database access (string value)
# This option is deprecated for removal since 13.0.0.
# Its value may be silently ignored in the future.
#db_driver = nova.db

# DEPRECATED:
# Default flavor to use for the EC2 API only.
# The Nova API does not support a default flavor.
#  (string value)
# This option is deprecated for removal since 14.0.0.
# Its value may be silently ignored in the future.
# Reason: The EC2 API is deprecated.
#default_flavor = m1.small

# DEPRECATED:
# Abstracts out IPv6 address generation to pluggable backends.
#
# nova-network can be put into dual-stack mode, so that it uses
# both IPv4 and IPv6 addresses. In dual-stack mode, by default, instances
# acquire IPv6 global unicast addresses with the help of stateless address
# auto-configuration mechanism.
#
# Related options:
#
# * use_neutron: this option only works with nova-network.
# * use_ipv6: this option only works if ipv6 is enabled for nova-network.
#  (string value)
# Allowed values: rfc2462, account_identifier
# This option is deprecated for removal since 16.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#ipv6_backend = rfc2462

#
# The IP address which the host is using to connect to the management network.
#
# Possible values:
#
# * String with valid IP address. Default is IPv4 address of this host.
#
# Related options:
#
# * metadata_host
# * my_block_storage_ip
# * routing_source_ip
# * vpn_ip
#  (string value)
#my_ip = 23.253.160.242

#
# The IP address which is used to connect to the block storage network.
#
# Possible values:
#
# * String with valid IP address. Default is IP address of this host.
#
# Related options:
#
# * my_ip - if my_block_storage_ip is not set, then my_ip value is used.
#  (string value)
#my_block_storage_ip = $my_ip

#
# Hostname, FQDN or IP address of this host. Must be valid within AMQP key.
#
# Possible values:
#
# * String with hostname, FQDN or IP address. Default is hostname of this host.
#  (string value)
#host = ubuntu-xenial-rax-ord-8933524

# DEPRECATED:
# Assign IPv6 and IPv4 addresses when creating instances.
#
# Related options:
#
# * use_neutron: this only works with nova-network.
#  (boolean value)
# This option is deprecated for removal since 16.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#use_ipv6 = false

# DEPRECATED:
# This option is a list of full paths to one or more configuration files for
# dhcpbridge. In most cases the default path of '/etc/nova/nova-dhcpbridge.conf'
# should be sufficient, but if you have special needs for configuring
# dhcpbridge,
# you can change or add to this list.
#
# Possible values
#
# * A list of strings, where each string is the full path to a dhcpbridge
#   configuration file.
#  (multi valued)
# This option is deprecated for removal since 16.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#dhcpbridge_flagfile = /etc/nova/nova-dhcpbridge.conf

# DEPRECATED:
# The location where the network configuration files will be kept. The default
# is
# the 'networks' directory off of the location where nova's Python module is
# installed.
#
# Possible values
#
# * A string containing the full path to the desired configuration directory
#  (string value)
# This option is deprecated for removal since 16.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#networks_path = $state_path/networks

# DEPRECATED:
# This is the name of the network interface for public IP addresses. The default
# is 'eth0'.
#
# Possible values:
#
# * Any string representing a network interface name
#  (string value)
# This option is deprecated for removal since 16.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#public_interface = eth0

# DEPRECATED:
# The location of the binary nova-dhcpbridge. By default it is the binary named
# 'nova-dhcpbridge' that is installed with all the other nova binaries.
#
# Possible values:
#
# * Any string representing the full path to the binary for dhcpbridge
#  (string value)
# This option is deprecated for removal since 16.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#dhcpbridge = $bindir/nova-dhcpbridge

# DEPRECATED:
# The public IP address of the network host.
#
# This is used when creating an SNAT rule.
#
# Possible values:
#
# * Any valid IP address
#
# Related options:
#
# * ``force_snat_range``
#  (string value)
# This option is deprecated for removal since 16.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#routing_source_ip = $my_ip

# DEPRECATED:
# The lifetime of a DHCP lease, in seconds. The default is 86400 (one day).
#
# Possible values:
#
# * Any positive integer value.
#  (integer value)
# Minimum value: 1
# This option is deprecated for removal since 16.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#dhcp_lease_time = 86400

# DEPRECATED:
# Despite the singular form of the name of this option, it is actually a list of
# zero or more server addresses that dnsmasq will use for DNS nameservers. If
# this is not empty, dnsmasq will not read /etc/resolv.conf, but will only use
# the servers specified in this option. If the option use_network_dns_servers is
# True, the dns1 and dns2 servers from the network will be appended to this
# list,
# and will be used as DNS servers, too.
#
# Possible values:
#
# * A list of strings, where each string is either an IP address or a FQDN.
#
# Related options:
#
# * ``use_network_dns_servers``
#  (multi valued)
# This option is deprecated for removal since 16.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#dns_server =

# DEPRECATED:
# When this option is set to True, the dns1 and dns2 servers for the network
# specified by the user on boot will be used for DNS, as well as any specified
# in
# the `dns_server` option.
#
# Related options:
#
# * ``dns_server``
#  (boolean value)
# This option is deprecated for removal since 16.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#use_network_dns_servers = false

# DEPRECATED:
# This option is a list of zero or more IP address ranges in your network's DMZ
# that should be accepted.
#
# Possible values:
#
# * A list of strings, each of which should be a valid CIDR.
#  (list value)
# This option is deprecated for removal since 16.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#dmz_cidr =

# DEPRECATED:
# This is a list of zero or more IP ranges that traffic from the
# `routing_source_ip` will be SNATted to. If the list is empty, then no SNAT
# rules are created.
#
# Possible values:
#
# * A list of strings, each of which should be a valid CIDR.
#
# Related options:
#
# * ``routing_source_ip``
#  (multi valued)
# This option is deprecated for removal since 16.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#force_snat_range =

# DEPRECATED:
# The path to the custom dnsmasq configuration file, if any.
#
# Possible values:
#
# * The full path to the configuration file, or an empty string if there is no
#   custom dnsmasq configuration file.
#  (string value)
# This option is deprecated for removal since 16.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#dnsmasq_config_file =

# DEPRECATED:
# This is the class used as the ethernet device driver for linuxnet bridge
# operations. The default value should be all you need for most cases, but if
# you
# wish to use a customized class, set this option to the full dot-separated
# import path for that class.
#
# Possible values:
#
# * Any string representing a dot-separated class path that Nova can import.
#  (string value)
# This option is deprecated for removal since 16.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#linuxnet_interface_driver = nova.network.linux_net.LinuxBridgeInterfaceDriver

# DEPRECATED:
# The name of the Open vSwitch bridge that is used with linuxnet when connecting
# with Open vSwitch."
#
# Possible values:
#
# * Any string representing a valid bridge name.
#  (string value)
# This option is deprecated for removal since 16.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#linuxnet_ovs_integration_bridge = br-int

#
# When True, when a device starts up, and upon binding floating IP addresses,
# arp
# messages will be sent to ensure that the arp caches on the compute hosts are
# up-to-date.
#
# Related options:
#
# * ``send_arp_for_ha_count``
#  (boolean value)
#send_arp_for_ha = false

#
# When arp messages are configured to be sent, they will be sent with the count
# set to the value of this option. Of course, if this is set to zero, no arp
# messages will be sent.
#
# Possible values:
#
# * Any integer greater than or equal to 0
#
# Related options:
#
# * ``send_arp_for_ha``
#  (integer value)
#send_arp_for_ha_count = 3

# DEPRECATED:
# When set to True, only the firt nic of a VM will get its default gateway from
# the DHCP server.
#  (boolean value)
# This option is deprecated for removal since 16.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#use_single_default_gateway = false

# DEPRECATED:
# One or more interfaces that bridges can forward traffic to. If any of the
# items
# in this list is the special keyword 'all', then all traffic will be forwarded.
#
# Possible values:
#
# * A list of zero or more interface names, or the word 'all'.
#  (multi valued)
# This option is deprecated for removal since 16.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#forward_bridge_interface = all

#
# This option determines the IP address for the network metadata API server.
#
# This is really the client side of the metadata host equation that allows
# nova-network to find the metadata server when doing a default multi host
# networking.
#
# Possible values:
#
# * Any valid IP address. The default is the address of the Nova API server.
#
# Related options:
#
# * ``metadata_port``
#  (string value)
#metadata_host = $my_ip

# DEPRECATED:
# This option determines the port used for the metadata API server.
#
# Related options:
#
# * ``metadata_host``
#  (port value)
# Minimum value: 0
# Maximum value: 65535
# This option is deprecated for removal since 16.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#metadata_port = 8775

# DEPRECATED:
# This expression, if defined, will select any matching iptables rules and place
# them at the top when applying metadata changes to the rules.
#
# Possible values:
#
# * Any string representing a valid regular expression, or an empty string
#
# Related options:
#
# * ``iptables_bottom_regex``
#  (string value)
# This option is deprecated for removal since 16.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#iptables_top_regex =

# DEPRECATED:
# This expression, if defined, will select any matching iptables rules and place
# them at the bottom when applying metadata changes to the rules.
#
# Possible values:
#
# * Any string representing a valid regular expression, or an empty string
#
# Related options:
#
# * iptables_top_regex
#  (string value)
# This option is deprecated for removal since 16.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#iptables_bottom_regex =

# DEPRECATED:
# By default, packets that do not pass the firewall are DROPped. In many cases,
# though, an operator may find it more useful to change this from DROP to
# REJECT,
# so that the user issuing those packets may have a better idea as to what's
# going on, or LOGDROP in order to record the blocked traffic before DROPping.
#
# Possible values:
#
# * A string representing an iptables chain. The default is DROP.
#  (string value)
# This option is deprecated for removal since 16.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#iptables_drop_action = DROP

# DEPRECATED:
# This option represents the period of time, in seconds, that the ovs_vsctl
# calls
# will wait for a response from the database before timing out. A setting of 0
# means that the utility should wait forever for a response.
#
# Possible values:
#
# * Any positive integer if a limited timeout is desired, or zero if the calls
#   should wait forever for a response.
#  (integer value)
# Minimum value: 0
# This option is deprecated for removal since 16.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#ovs_vsctl_timeout = 120

# DEPRECATED:
# This option is used mainly in testing to avoid calls to the underlying network
# utilities.
#  (boolean value)
# This option is deprecated for removal since 16.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#fake_network = false

# DEPRECATED:
# This option determines the number of times to retry ebtables commands before
# giving up. The minimum number of retries is 1.
#
# Possible values:
#
# * Any positive integer
#
# Related options:
#
# * ``ebtables_retry_interval``
#  (integer value)
# Minimum value: 1
# This option is deprecated for removal since 16.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#ebtables_exec_attempts = 3

# DEPRECATED:
# This option determines the time, in seconds, that the system will sleep in
# between ebtables retries. Note that each successive retry waits a multiple of
# this value, so for example, if this is set to the default of 1.0 seconds, and
# ebtables_exec_attempts is 4, after the first failure, the system will sleep
# for
# 1 * 1.0 seconds, after the second failure it will sleep 2 * 1.0 seconds, and
# after the third failure it will sleep 3 * 1.0 seconds.
#
# Possible values:
#
# * Any non-negative float or integer. Setting this to zero will result in no
#   waiting between attempts.
#
# Related options:
#
# * ebtables_exec_attempts
#  (floating point value)
# This option is deprecated for removal since 16.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#ebtables_retry_interval = 1.0

# DEPRECATED:
# Enable neutron as the backend for networking.
#
# Determine whether to use Neutron or Nova Network as the back end. Set to true
# to use neutron.
#  (boolean value)
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#use_neutron = true

#
# This option determines whether the network setup information is injected into
# the VM before it is booted. While it was originally designed to be used only
# by nova-network, it is also used by the vmware and xenapi virt drivers to
# control whether network information is injected into a VM. The libvirt virt
# driver also uses it when we use config_drive to configure network to control
# whether network information is injected into a VM.
#  (boolean value)
#flat_injected = false

# DEPRECATED:
# This option determines the bridge used for simple network interfaces when no
# bridge is specified in the VM creation request.
#
# Please note that this option is only used when using nova-network instead of
# Neutron in your deployment.
#
# Possible values:
#
# * Any string representing a valid network bridge, such as 'br100'
#
# Related options:
#
# * ``use_neutron``
#  (string value)
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#flat_network_bridge = <None>

# DEPRECATED:
# This is the address of the DNS server for a simple network. If this option is
# not specified, the default of '8.8.4.4' is used.
#
# Please note that this option is only used when using nova-network instead of
# Neutron in your deployment.
#
# Possible values:
#
# * Any valid IP address.
#
# Related options:
#
# * ``use_neutron``
#  (string value)
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#flat_network_dns = 8.8.4.4

# DEPRECATED:
# This option is the name of the virtual interface of the VM on which the bridge
# will be built. While it was originally designed to be used only by
# nova-network, it is also used by libvirt for the bridge interface name.
#
# Possible values:
#
# * Any valid virtual interface name, such as 'eth0'
#  (string value)
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#flat_interface = <None>

# DEPRECATED:
# This is the VLAN number used for private networks. Note that the when creating
# the networks, if the specified number has already been assigned, nova-network
# will increment this number until it finds an available VLAN.
#
# Please note that this option is only used when using nova-network instead of
# Neutron in your deployment. It also will be ignored if the configuration
# option
# for `network_manager` is not set to the default of
# 'nova.network.manager.VlanManager'.
#
# Possible values:
#
# * Any integer between 1 and 4094. Values outside of that range will raise a
#   ValueError exception.
#
# Related options:
#
# * ``network_manager``
# * ``use_neutron``
#  (integer value)
# Minimum value: 1
# Maximum value: 4094
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#vlan_start = 100

# DEPRECATED:
# This option is the name of the virtual interface of the VM on which the VLAN
# bridge will be built. While it was originally designed to be used only by
# nova-network, it is also used by libvirt and xenapi for the bridge interface
# name.
#
# Please note that this setting will be ignored in nova-network if the
# configuration option for `network_manager` is not set to the default of
# 'nova.network.manager.VlanManager'.
#
# Possible values:
#
# * Any valid virtual interface name, such as 'eth0'
#  (string value)
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options. While
# this option has an effect when using neutron, it incorrectly override the
# value
# provided by neutron and should therefore not be used.
#vlan_interface = <None>

# DEPRECATED:
# This option represents the number of networks to create if not explicitly
# specified when the network is created. The only time this is used is if a CIDR
# is specified, but an explicit network_size is not. In that case, the subnets
# are created by diving the IP address space of the CIDR by num_networks. The
# resulting subnet sizes cannot be larger than the configuration option
# `network_size`; in that event, they are reduced to `network_size`, and a
# warning is logged.
#
# Please note that this option is only used when using nova-network instead of
# Neutron in your deployment.
#
# Possible values:
#
# * Any positive integer is technically valid, although there are practical
#   limits based upon available IP address space and virtual interfaces.
#
# Related options:
#
# * ``use_neutron``
# * ``network_size``
#  (integer value)
# Minimum value: 1
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#num_networks = 1

# DEPRECATED:
# This option is no longer used since the /os-cloudpipe API was removed in the
# 16.0.0 Pike release. This is the public IP address for the cloudpipe VPN
# servers. It defaults to the IP address of the host.
#
# Please note that this option is only used when using nova-network instead of
# Neutron in your deployment. It also will be ignored if the configuration
# option
# for `network_manager` is not set to the default of
# 'nova.network.manager.VlanManager'.
#
# Possible values:
#
# * Any valid IP address. The default is ``$my_ip``, the IP address of the VM.
#
# Related options:
#
# * ``network_manager``
# * ``use_neutron``
# * ``vpn_start``
#  (string value)
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#vpn_ip = $my_ip

# DEPRECATED:
# This is the port number to use as the first VPN port for private networks.
#
# Please note that this option is only used when using nova-network instead of
# Neutron in your deployment. It also will be ignored if the configuration
# option
# for `network_manager` is not set to the default of
# 'nova.network.manager.VlanManager', or if you specify a value the 'vpn_start'
# parameter when creating a network.
#
# Possible values:
#
# * Any integer representing a valid port number. The default is 1000.
#
# Related options:
#
# * ``use_neutron``
# * ``vpn_ip``
# * ``network_manager``
#  (port value)
# Minimum value: 0
# Maximum value: 65535
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#vpn_start = 1000

# DEPRECATED:
# This option determines the number of addresses in each private subnet.
#
# Please note that this option is only used when using nova-network instead of
# Neutron in your deployment.
#
# Possible values:
#
# * Any positive integer that is less than or equal to the available network
#   size. Note that if you are creating multiple networks, they must all fit in
#   the available IP address space. The default is 256.
#
# Related options:
#
# * ``use_neutron``
# * ``num_networks``
#  (integer value)
# Minimum value: 1
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#network_size = 256

# DEPRECATED:
# This option determines the fixed IPv6 address block when creating a network.
#
# Please note that this option is only used when using nova-network instead of
# Neutron in your deployment.
#
# Possible values:
#
# * Any valid IPv6 CIDR
#
# Related options:
#
# * ``use_neutron``
#  (string value)
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#fixed_range_v6 = fd00::/48

# DEPRECATED:
# This is the default IPv4 gateway. It is used only in the testing suite.
#
# Please note that this option is only used when using nova-network instead of
# Neutron in your deployment.
#
# Possible values:
#
# * Any valid IP address.
#
# Related options:
#
# * ``use_neutron``
# * ``gateway_v6``
#  (string value)
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#gateway = <None>

# DEPRECATED:
# This is the default IPv6 gateway. It is used only in the testing suite.
#
# Please note that this option is only used when using nova-network instead of
# Neutron in your deployment.
#
# Possible values:
#
# * Any valid IP address.
#
# Related options:
#
# * ``use_neutron``
# * ``gateway``
#  (string value)
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#gateway_v6 = <None>

# DEPRECATED:
# This option represents the number of IP addresses to reserve at the top of the
# address range for VPN clients. It also will be ignored if the configuration
# option for `network_manager` is not set to the default of
# 'nova.network.manager.VlanManager'.
#
# Possible values:
#
# * Any integer, 0 or greater.
#
# Related options:
#
# * ``use_neutron``
# * ``network_manager``
#  (integer value)
# Minimum value: 0
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#cnt_vpn_clients = 0

# DEPRECATED:
# This is the number of seconds to wait before disassociating a deallocated
# fixed
# IP address. This is only used with the nova-network service, and has no effect
# when using neutron for networking.
#
# Possible values:
#
# * Any integer, zero or greater.
#
# Related options:
#
# * ``use_neutron``
#  (integer value)
# Minimum value: 0
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#fixed_ip_disassociate_timeout = 600

# DEPRECATED:
# This option determines how many times nova-network will attempt to create a
# unique MAC address before giving up and raising a
# `VirtualInterfaceMacAddressException` error.
#
# Possible values:
#
# * Any positive integer. The default is 5.
#
# Related options:
#
# * ``use_neutron``
#  (integer value)
# Minimum value: 1
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#create_unique_mac_address_attempts = 5

# DEPRECATED:
# Determines whether unused gateway devices, both VLAN and bridge, are deleted
# if
# the network is in nova-network VLAN mode and is multi-hosted.
#
# Related options:
#
# * ``use_neutron``
# * ``vpn_ip``
# * ``fake_network``
#  (boolean value)
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#teardown_unused_network_gateway = false

# DEPRECATED:
# When this option is True, a call is made to release the DHCP for the instance
# when that instance is terminated.
#
# Related options:
#
# * ``use_neutron``
#  (boolean value)
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#force_dhcp_release = true

# DEPRECATED:
# When this option is True, whenever a DNS entry must be updated, a fanout cast
# message is sent to all network hosts to update their DNS entries in multi-host
# mode.
#
# Related options:
#
# * ``use_neutron``
#  (boolean value)
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#update_dns_entries = false

# DEPRECATED:
# This option determines the time, in seconds, to wait between refreshing DNS
# entries for the network.
#
# Possible values:
#
# * A positive integer
# * -1 to disable updates
#
# Related options:
#
# * ``use_neutron``
#  (integer value)
# Minimum value: -1
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#dns_update_periodic_interval = -1

# DEPRECATED:
# This option allows you to specify the domain for the DHCP server.
#
# Possible values:
#
# * Any string that is a valid domain name.
#
# Related options:
#
# * ``use_neutron``
#  (string value)
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#dhcp_domain = novalocal

# DEPRECATED:
# This option allows you to specify the L3 management library to be used.
#
# Possible values:
#
# * Any dot-separated string that represents the import path to an L3 networking
#   library.
#
# Related options:
#
# * ``use_neutron``
#  (string value)
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#l3_lib = nova.network.l3.LinuxNetL3

# DEPRECATED:
# THIS VALUE SHOULD BE SET WHEN CREATING THE NETWORK.
#
# If True in multi_host mode, all compute hosts share the same dhcp address. The
# same IP address used for DHCP will be added on each nova-network node which is
# only visible to the VMs on the same host.
#
# The use of this configuration has been deprecated and may be removed in any
# release after Mitaka. It is recommended that instead of relying on this
# option,
# an explicit value should be passed to 'create_networks()' as a keyword
# argument
# with the name 'share_address'.
#  (boolean value)
# This option is deprecated for removal since 2014.2.
# Its value may be silently ignored in the future.
#share_dhcp_address = false

# DEPRECATED:
# URL for LDAP server which will store DNS entries
#
# Possible values:
#
# * A valid LDAP URL representing the server
#  (uri value)
# This option is deprecated for removal since 16.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#ldap_dns_url = ldap://ldap.example.com:389

# DEPRECATED: Bind user for LDAP server (string value)
# This option is deprecated for removal since 16.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#ldap_dns_user = uid=admin,ou=people,dc=example,dc=org

# DEPRECATED: Bind user's password for LDAP server (string value)
# This option is deprecated for removal since 16.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#ldap_dns_password = password

# DEPRECATED:
# Hostmaster for LDAP DNS driver Statement of Authority
#
# Possible values:
#
# * Any valid string representing LDAP DNS hostmaster.
#  (string value)
# This option is deprecated for removal since 16.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#ldap_dns_soa_hostmaster = hostmaster@example.org

# DEPRECATED:
# DNS Servers for LDAP DNS driver
#
# Possible values:
#
# * A valid URL representing a DNS server
#  (multi valued)
# This option is deprecated for removal since 16.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#ldap_dns_servers = dns.example.org

# DEPRECATED:
# Base distinguished name for the LDAP search query
#
# This option helps to decide where to look up the host in LDAP.
#  (string value)
# This option is deprecated for removal since 16.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#ldap_dns_base_dn = ou=hosts,dc=example,dc=org

# DEPRECATED:
# Refresh interval (in seconds) for LDAP DNS driver Start of Authority
#
# Time interval, a secondary/slave DNS server waits before requesting for
# primary DNS server's current SOA record. If the records are different,
# secondary DNS server will request a zone transfer from primary.
#
# NOTE: Lower values would cause more traffic.
#  (integer value)
# This option is deprecated for removal since 16.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#ldap_dns_soa_refresh = 1800

# DEPRECATED:
# Retry interval (in seconds) for LDAP DNS driver Start of Authority
#
# Time interval, a secondary/slave DNS server should wait, if an
# attempt to transfer zone failed during the previous refresh interval.
#  (integer value)
# This option is deprecated for removal since 16.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#ldap_dns_soa_retry = 3600

# DEPRECATED:
# Expiry interval (in seconds) for LDAP DNS driver Start of Authority
#
# Time interval, a secondary/slave DNS server holds the information
# before it is no longer considered authoritative.
#  (integer value)
# This option is deprecated for removal since 16.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#ldap_dns_soa_expiry = 86400

# DEPRECATED:
# Minimum interval (in seconds) for LDAP DNS driver Start of Authority
#
# It is Minimum time-to-live applies for all resource records in the
# zone file. This value is supplied to other servers how long they
# should keep the data in cache.
#  (integer value)
# This option is deprecated for removal since 16.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#ldap_dns_soa_minimum = 7200

# DEPRECATED: The topic network nodes listen on (string value)
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# There is no need to let users choose the RPC topic for all services - there
# is little gain from this. Furthermore, it makes it really easy to break Nova
# by using this option.
#network_topic = network

# DEPRECATED:
# Default value for multi_host in networks.
#
# nova-network service can operate in a multi-host or single-host mode.
# In multi-host mode each compute node runs a copy of nova-network and the
# instances on that compute node use the compute node as a gateway to the
# Internet. Where as in single-host mode, a central server runs the nova-network
# service. All compute nodes forward traffic from the instances to the
# cloud controller which then forwards traffic to the Internet.
#
# If this options is set to true, some rpc network calls will be sent directly
# to host.
#
# Note that this option is only used when using nova-network instead of
# Neutron in your deployment.
#
# Related options:
#
# * ``use_neutron``
#  (boolean value)
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#multi_host = false

# DEPRECATED:
# Driver to use for network creation.
#
# Network driver initializes (creates bridges and so on) only when the
# first VM lands on a host node. All network managers configure the
# network using network drivers. The driver is not tied to any particular
# network manager.
#
# The default Linux driver implements vlans, bridges, and iptables rules
# using linux utilities.
#
# Note that this option is only used when using nova-network instead
# of Neutron in your deployment.
#
# Related options:
#
# * ``use_neutron``
#  (string value)
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#network_driver = nova.network.linux_net

# DEPRECATED:
# Firewall driver to use with ``nova-network`` service.
#
# This option only applies when using the ``nova-network`` service. When using
# another networking services, such as Neutron, this should be to set to the
# ``nova.virt.firewall.NoopFirewallDriver``.
#
# Possible values:
#
# * ``nova.virt.firewall.IptablesFirewallDriver``
# * ``nova.virt.firewall.NoopFirewallDriver``
# * ``nova.virt.libvirt.firewall.IptablesFirewallDriver``
# * [...]
#
# Related options:
#
# * ``use_neutron``: This must be set to ``False`` to enable ``nova-network``
#   networking
#  (string value)
# This option is deprecated for removal since 16.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#firewall_driver = nova.virt.firewall.NoopFirewallDriver

# DEPRECATED:
# Determine whether to allow network traffic from same network.
#
# When set to true, hosts on the same subnet are not filtered and are allowed
# to pass all types of traffic between them. On a flat network, this allows
# all instances from all projects unfiltered communication. With VLAN
# networking, this allows access between instances within the same project.
#
# This option only applies when using the ``nova-network`` service. When using
# another networking services, such as Neutron, security groups or other
# approaches should be used.
#
# Possible values:
#
# * True: Network traffic should be allowed pass between all instances on the
#   same network, regardless of their tenant and security policies
# * False: Network traffic should not be allowed pass between instances unless
#   it is unblocked in a security group
#
# Related options:
#
# * ``use_neutron``: This must be set to ``False`` to enable ``nova-network``
#   networking
# * ``firewall_driver``: This must be set to
#   ``nova.virt.libvirt.firewall.IptablesFirewallDriver`` to ensure the
#   libvirt firewall driver is enabled.
#  (boolean value)
# This option is deprecated for removal since 16.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#allow_same_net_traffic = true

# DEPRECATED:
# Default pool for floating IPs.
#
# This option specifies the default floating IP pool for allocating floating
# IPs.
#
# While allocating a floating ip, users can optionally pass in the name of the
# pool they want to allocate from, otherwise it will be pulled from the
# default pool.
#
# If this option is not set, then 'nova' is used as default floating pool.
#
# Possible values:
#
# * Any string representing a floating IP pool name
#  (string value)
# This option is deprecated for removal since 16.0.0.
# Its value may be silently ignored in the future.
# Reason:
# This option was used for two purposes: to set the floating IP pool name for
# nova-network and to do the same for neutron. nova-network is deprecated, as
# are
# any related configuration options. Users of neutron, meanwhile, should use the
# 'default_floating_pool' option in the '[neutron]' group.
#default_floating_pool = nova

# DEPRECATED:
# Autoassigning floating IP to VM
#
# When set to True, floating IP is auto allocated and associated
# to the VM upon creation.
#
# Related options:
#
# * use_neutron: this options only works with nova-network.
#  (boolean value)
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#auto_assign_floating_ip = false

# DEPRECATED:
# Full class name for the DNS Manager for floating IPs.
#
# This option specifies the class of the driver that provides functionality
# to manage DNS entries associated with floating IPs.
#
# When a user adds a DNS entry for a specified domain to a floating IP,
# nova will add a DNS entry using the specified floating DNS driver.
# When a floating IP is deallocated, its DNS entry will automatically be
# deleted.
#
# Possible values:
#
# * Full Python path to the class to be used
#
# Related options:
#
# * use_neutron: this options only works with nova-network.
#  (string value)
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#floating_ip_dns_manager = nova.network.noop_dns_driver.NoopDNSDriver

# DEPRECATED:
# Full class name for the DNS Manager for instance IPs.
#
# This option specifies the class of the driver that provides functionality
# to manage DNS entries for instances.
#
# On instance creation, nova will add DNS entries for the instance name and
# id, using the specified instance DNS driver and domain. On instance deletion,
# nova will remove the DNS entries.
#
# Possible values:
#
# * Full Python path to the class to be used
#
# Related options:
#
# * use_neutron: this options only works with nova-network.
#  (string value)
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#instance_dns_manager = nova.network.noop_dns_driver.NoopDNSDriver

# DEPRECATED:
# If specified, Nova checks if the availability_zone of every instance matches
# what the database says the availability_zone should be for the specified
# dns_domain.
#
# Related options:
#
# * use_neutron: this options only works with nova-network.
#  (string value)
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#instance_dns_domain =

#
# Filename that will be used for storing websocket frames received
# and sent by a proxy service (like VNC, spice, serial) running on this host.
# If this is not set, no recording will be done.
#  (string value)
#record = <None>

# Run as a background process. (boolean value)
#daemon = false

# Disallow non-encrypted connections. (boolean value)
#ssl_only = false

# Set to True if source host is addressed with IPv6. (boolean value)
#source_is_ipv6 = false

# Path to SSL certificate file. (string value)
#cert = self.pem

# SSL key file (if separate from cert). (string value)
#key = <None>

#
# Path to directory with content which will be served by a web server.
#  (string value)
#web = /usr/share/spice-html5

#
# The directory where the Nova python modules are installed.
#
# This directory is used to store template files for networking and remote
# console access. It is also the default path for other config options which
# need to persist Nova internal data. It is very unlikely that you need to
# change this option from its default value.
#
# Possible values:
#
# * The full path to a directory.
#
# Related options:
#
# * ``state_path``
#  (string value)
#pybasedir = /home/jenkins/workspace/nova-docs-ubuntu-xenial

#
# The directory where the Nova binaries are installed.
#
# This option is only relevant if the networking capabilities from Nova are
# used (see services below). Nova's networking capabilities are targeted to
# be fully replaced by Neutron in the future. It is very unlikely that you need
# to change this option from its default value.
#
# Possible values:
#
# * The full path to a directory.
#  (string value)
#bindir = /home/jenkins/workspace/nova-docs-ubuntu-xenial/.tox/venv/local/bin

#
# The top-level directory for maintaining Nova's state.
#
# This directory is used to store Nova's internal state. It is used by a
# variety of other config options which derive from this. In some scenarios
# (for example migrations) it makes sense to use a storage location which is
# shared between multiple compute hosts (for example via NFS). Unless the
# option ``instances_path`` gets overwritten, this directory can grow very
# large.
#
# Possible values:
#
# * The full path to a directory. Defaults to value provided in ``pybasedir``.
#  (string value)
#state_path = $pybasedir

#
# Number of seconds indicating how frequently the state of services on a
# given hypervisor is reported. Nova needs to know this to determine the
# overall health of the deployment.
#
# Related Options:
#
# * service_down_time
#   report_interval should be less than service_down_time. If service_down_time
#   is less than report_interval, services will routinely be considered down,
#   because they report in too rarely.
#  (integer value)
#report_interval = 10

#
# Maximum time in seconds since last check-in for up service
#
# Each compute node periodically updates their database status based on the
# specified report interval. If the compute node hasn't updated the status
# for more than service_down_time, then the compute node is considered down.
#
# Related Options:
#
# * report_interval (service_down_time should not be less than report_interval)
#  (integer value)
#service_down_time = 60

#
# Enable periodic tasks.
#
# If set to true, this option allows services to periodically run tasks
# on the manager.
#
# In case of running multiple schedulers or conductors you may want to run
# periodic tasks on only one host - in this case disable this option for all
# hosts but one.
#  (boolean value)
#periodic_enable = true

#
# Number of seconds to randomly delay when starting the periodic task
# scheduler to reduce stampeding.
#
# When compute workers are restarted in unison across a cluster,
# they all end up running the periodic tasks at the same time
# causing problems for the external services. To mitigate this
# behavior, periodic_fuzzy_delay option allows you to introduce a
# random initial delay when starting the periodic task scheduler.
#
# Possible Values:
#
# * Any positive integer (in seconds)
# * 0 : disable the random delay
#  (integer value)
# Minimum value: 0
#periodic_fuzzy_delay = 60

# List of APIs to be enabled by default. (list value)
#enabled_apis = osapi_compute,metadata

#
# List of APIs with enabled SSL.
#
# Nova provides SSL support for the API servers. enabled_ssl_apis option
# allows configuring the SSL support.
#  (list value)
#enabled_ssl_apis =

#
# IP address on which the OpenStack API will listen.
#
# The OpenStack API service listens on this IP address for incoming
# requests.
#  (string value)
#osapi_compute_listen = 0.0.0.0

#
# Port on which the OpenStack API will listen.
#
# The OpenStack API service listens on this port number for incoming
# requests.
#  (port value)
# Minimum value: 0
# Maximum value: 65535
#osapi_compute_listen_port = 8774

#
# Number of workers for OpenStack API service. The default will be the number
# of CPUs available.
#
# OpenStack API services can be configured to run as multi-process (workers).
# This overcomes the problem of reduction in throughput when API request
# concurrency increases. OpenStack API service will run in the specified
# number of processes.
#
# Possible Values:
#
# * Any positive integer
# * None (default value)
#  (integer value)
# Minimum value: 1
#osapi_compute_workers = <None>

#
# IP address on which the metadata API will listen.
#
# The metadata API service listens on this IP address for incoming
# requests.
#  (string value)
#metadata_listen = 0.0.0.0

#
# Port on which the metadata API will listen.
#
# The metadata API service listens on this port number for incoming
# requests.
#  (port value)
# Minimum value: 0
# Maximum value: 65535
#metadata_listen_port = 8775

#
# Number of workers for metadata service. If not specified the number of
# available CPUs will be used.
#
# The metadata service can be configured to run as multi-process (workers).
# This overcomes the problem of reduction in throughput when API request
# concurrency increases. The metadata service will run in the specified
# number of processes.
#
# Possible Values:
#
# * Any positive integer
# * None (default value)
#  (integer value)
# Minimum value: 1
#metadata_workers = <None>

# Full class name for the Manager for network (string value)
# Allowed values: nova.network.manager.FlatManager, nova.network.manager.FlatDHCPManager, nova.network.manager.VlanManager
#network_manager = nova.network.manager.VlanManager

#
# This option specifies the driver to be used for the servicegroup service.
#
# ServiceGroup API in nova enables checking status of a compute node. When a
# compute worker running the nova-compute daemon starts, it calls the join API
# to join the compute group. Services like nova scheduler can query the
# ServiceGroup API to check if a node is alive. Internally, the ServiceGroup
# client driver automatically updates the compute worker status. There are
# multiple backend implementations for this service: Database ServiceGroup
# driver
# and Memcache ServiceGroup driver.
#
# Possible Values:
#
#     * db : Database ServiceGroup driver
#     * mc : Memcache ServiceGroup driver
#
# Related Options:
#
#     * service_down_time (maximum time since last check-in for up service)
#  (string value)
# Allowed values: db, mc
#servicegroup_driver = db

#
# From oslo.log
#

# If set to true, the logging level will be set to DEBUG instead of the default
# INFO level. (boolean value)
# Note: This option can be changed without restarting.
#debug = false

# The name of a logging configuration file. This file is appended to any
# existing logging configuration files. For details about logging configuration
# files, see the Python logging module documentation. Note that when logging
# configuration files are used then all logging configuration is set in the
# configuration file and other logging configuration options are ignored (for
# example, logging_context_format_string). (string value)
# Note: This option can be changed without restarting.
# Deprecated group/name - [DEFAULT]/log_config
#log_config_append = <None>

# Defines the format string for %%(asctime)s in log records. Default:
# %(default)s . This option is ignored if log_config_append is set. (string
# value)
#log_date_format = %Y-%m-%d %H:%M:%S

# (Optional) Name of log file to send logging output to. If no default is set,
# logging will go to stderr as defined by use_stderr. This option is ignored if
# log_config_append is set. (string value)
# Deprecated group/name - [DEFAULT]/logfile
#log_file = <None>

# (Optional) The base directory used for relative log_file  paths. This option
# is ignored if log_config_append is set. (string value)
# Deprecated group/name - [DEFAULT]/logdir
#log_dir = <None>

# Uses logging handler designed to watch file system. When log file is moved or
# removed this handler will open a new log file with specified path
# instantaneously. It makes sense only if log_file option is specified and Linux
# platform is used. This option is ignored if log_config_append is set. (boolean
# value)
#watch_log_file = false

# Use syslog for logging. Existing syslog format is DEPRECATED and will be
# changed later to honor RFC5424. This option is ignored if log_config_append is
# set. (boolean value)
#use_syslog = false

# Enable journald for logging. If running in a systemd environment you may wish
# to enable journal support. Doing so will use the journal native protocol which
# includes structured metadata in addition to log messages.This option is
# ignored if log_config_append is set. (boolean value)
#use_journal = false

# Syslog facility to receive log lines. This option is ignored if
# log_config_append is set. (string value)
#syslog_log_facility = LOG_USER

# Log output to standard error. This option is ignored if log_config_append is
# set. (boolean value)
#use_stderr = false

# Format string to use for log messages with context. (string value)
#logging_context_format_string = %(asctime)s.%(msecs)03d %(process)d %(levelname)s %(name)s [%(request_id)s %(user_identity)s] %(instance)s%(message)s

# Format string to use for log messages when context is undefined. (string
# value)
#logging_default_format_string = %(asctime)s.%(msecs)03d %(process)d %(levelname)s %(name)s [-] %(instance)s%(message)s

# Additional data to append to log message when logging level for the message is
# DEBUG. (string value)
#logging_debug_format_suffix = %(funcName)s %(pathname)s:%(lineno)d

# Prefix each line of exception output with this format. (string value)
#logging_exception_prefix = %(asctime)s.%(msecs)03d %(process)d ERROR %(name)s %(instance)s

# Defines the format string for %(user_identity)s that is used in
# logging_context_format_string. (string value)
#logging_user_identity_format = %(user)s %(tenant)s %(domain)s %(user_domain)s %(project_domain)s

# List of package logging levels in logger=LEVEL pairs. This option is ignored
# if log_config_append is set. (list value)
#default_log_levels = amqp=WARN,amqplib=WARN,boto=WARN,qpid=WARN,sqlalchemy=WARN,suds=INFO,oslo.messaging=INFO,oslo_messaging=INFO,iso8601=WARN,requests.packages.urllib3.connectionpool=WARN,urllib3.connectionpool=WARN,websocket=WARN,requests.packages.urllib3.util.retry=WARN,urllib3.util.retry=WARN,keystonemiddleware=WARN,routes.middleware=WARN,stevedore=WARN,taskflow=WARN,keystoneauth=WARN,oslo.cache=INFO,dogpile.core.dogpile=INFO

# Enables or disables publication of error events. (boolean value)
#publish_errors = false

# The format for an instance that is passed with the log message. (string value)
#instance_format = "[instance: %(uuid)s] "

# The format for an instance UUID that is passed with the log message. (string
# value)
#instance_uuid_format = "[instance: %(uuid)s] "

# Interval, number of seconds, of log rate limiting. (integer value)
#rate_limit_interval = 0

# Maximum number of logged messages per rate_limit_interval. (integer value)
#rate_limit_burst = 0

# Log level name used by rate limiting: CRITICAL, ERROR, INFO, WARNING, DEBUG or
# empty string. Logs with level greater or equal to rate_limit_except_level are
# not filtered. An empty string means that all levels are filtered. (string
# value)
#rate_limit_except_level = CRITICAL

# Enables or disables fatal status of deprecations. (boolean value)
#fatal_deprecations = false

#
# From oslo.messaging
#

# Size of RPC connection pool. (integer value)
#rpc_conn_pool_size = 30

# The pool size limit for connections expiration policy (integer value)
#conn_pool_min_size = 2

# The time-to-live in sec of idle connections in the pool (integer value)
#conn_pool_ttl = 1200

# ZeroMQ bind address. Should be a wildcard (*), an ethernet interface, or IP.
# The "host" option should point or resolve to this address. (string value)
#rpc_zmq_bind_address = *

# MatchMaker driver. (string value)
# Allowed values: redis, sentinel, dummy
#rpc_zmq_matchmaker = redis

# Number of ZeroMQ contexts, defaults to 1. (integer value)
#rpc_zmq_contexts = 1

# Maximum number of ingress messages to locally buffer per topic. Default is
# unlimited. (integer value)
#rpc_zmq_topic_backlog = <None>

# Directory for holding IPC sockets. (string value)
#rpc_zmq_ipc_dir = /var/run/openstack

# Name of this node. Must be a valid hostname, FQDN, or IP address. Must match
# "host" option, if running Nova. (string value)
#rpc_zmq_host = localhost

# Number of seconds to wait before all pending messages will be sent after
# closing a socket. The default value of -1 specifies an infinite linger period.
# The value of 0 specifies no linger period. Pending messages shall be discarded
# immediately when the socket is closed. Positive values specify an upper bound
# for the linger period. (integer value)
# Deprecated group/name - [DEFAULT]/rpc_cast_timeout
#zmq_linger = -1

# The default number of seconds that poll should wait. Poll raises timeout
# exception when timeout expired. (integer value)
#rpc_poll_timeout = 1

# Expiration timeout in seconds of a name service record about existing target (
# < 0 means no timeout). (integer value)
#zmq_target_expire = 300

# Update period in seconds of a name service record about existing target.
# (integer value)
#zmq_target_update = 180

# Use PUB/SUB pattern for fanout methods. PUB/SUB always uses proxy. (boolean
# value)
#use_pub_sub = false

# Use ROUTER remote proxy. (boolean value)
#use_router_proxy = false

# This option makes direct connections dynamic or static. It makes sense only
# with use_router_proxy=False which means to use direct connections for direct
# message types (ignored otherwise). (boolean value)
#use_dynamic_connections = false

# How many additional connections to a host will be made for failover reasons.
# This option is actual only in dynamic connections mode. (integer value)
#zmq_failover_connections = 2

# Minimal port number for random ports range. (port value)
# Minimum value: 0
# Maximum value: 65535
#rpc_zmq_min_port = 49153

# Maximal port number for random ports range. (integer value)
# Minimum value: 1
# Maximum value: 65536
#rpc_zmq_max_port = 65536

# Number of retries to find free port number before fail with ZMQBindError.
# (integer value)
#rpc_zmq_bind_port_retries = 100

# Default serialization mechanism for serializing/deserializing
# outgoing/incoming messages (string value)
# Allowed values: json, msgpack
#rpc_zmq_serialization = json

# This option configures round-robin mode in zmq socket. True means not keeping
# a queue when server side disconnects. False means to keep queue and messages
# even if server is disconnected, when the server appears we send all
# accumulated messages to it. (boolean value)
#zmq_immediate = true

# Enable/disable TCP keepalive (KA) mechanism. The default value of -1 (or any
# other negative value) means to skip any overrides and leave it to OS default;
# 0 and 1 (or any other positive value) mean to disable and enable the option
# respectively. (integer value)
#zmq_tcp_keepalive = -1

# The duration between two keepalive transmissions in idle condition. The unit
# is platform dependent, for example, seconds in Linux, milliseconds in Windows
# etc. The default value of -1 (or any other negative value and 0) means to skip
# any overrides and leave it to OS default. (integer value)
#zmq_tcp_keepalive_idle = -1

# The number of retransmissions to be carried out before declaring that remote
# end is not available. The default value of -1 (or any other negative value and
# 0) means to skip any overrides and leave it to OS default. (integer value)
#zmq_tcp_keepalive_cnt = -1

# The duration between two successive keepalive retransmissions, if
# acknowledgement to the previous keepalive transmission is not received. The
# unit is platform dependent, for example, seconds in Linux, milliseconds in
# Windows etc. The default value of -1 (or any other negative value and 0) means
# to skip any overrides and leave it to OS default. (integer value)
#zmq_tcp_keepalive_intvl = -1

# Maximum number of (green) threads to work concurrently. (integer value)
#rpc_thread_pool_size = 100

# Expiration timeout in seconds of a sent/received message after which it is not
# tracked anymore by a client/server. (integer value)
#rpc_message_ttl = 300

# Wait for message acknowledgements from receivers. This mechanism works only
# via proxy without PUB/SUB. (boolean value)
#rpc_use_acks = false

# Number of seconds to wait for an ack from a cast/call. After each retry
# attempt this timeout is multiplied by some specified multiplier. (integer
# value)
#rpc_ack_timeout_base = 15

# Number to multiply base ack timeout by after each retry attempt. (integer
# value)
#rpc_ack_timeout_multiplier = 2

# Default number of message sending attempts in case of any problems occurred:
# positive value N means at most N retries, 0 means no retries, None or -1 (or
# any other negative values) mean to retry forever. This option is used only if
# acknowledgments are enabled. (integer value)
#rpc_retry_attempts = 3

# List of publisher hosts SubConsumer can subscribe on. This option has higher
# priority then the default publishers list taken from the matchmaker. (list
# value)
#subscribe_on =

# Size of executor thread pool when executor is threading or eventlet. (integer
# value)
# Deprecated group/name - [DEFAULT]/rpc_thread_pool_size
#executor_thread_pool_size = 64

# Seconds to wait for a response from a call. (integer value)
#rpc_response_timeout = 60

# A URL representing the messaging driver to use and its full configuration.
# (string value)
#transport_url = <None>

# DEPRECATED: The messaging driver to use, defaults to rabbit. Other drivers
# include amqp and zmq. (string value)
# This option is deprecated for removal.
# Its value may be silently ignored in the future.
# Reason: Replaced by [DEFAULT]/transport_url
#rpc_backend = rabbit

# The default exchange under which topics are scoped. May be overridden by an
# exchange name specified in the transport_url option. (string value)
#control_exchange = openstack

#
# From oslo.service.periodic_task
#

# Some periodic tasks can be run in a separate process. Should we run them here?
# (boolean value)
#run_external_periodic_tasks = true

#
# From oslo.service.service
#

# Enable eventlet backdoor.  Acceptable values are 0, <port>, and <start>:<end>,
# where 0 results in listening on a random tcp port number; <port> results in
# listening on the specified port number (and not enabling backdoor if that port
# is in use); and <start>:<end> results in listening on the smallest unused port
# number within the specified range of port numbers.  The chosen port is
# displayed in the service's log file. (string value)
#backdoor_port = <None>

# Enable eventlet backdoor, using the provided path as a unix socket that can
# receive connections. This option is mutually exclusive with 'backdoor_port' in
# that only one should be provided. If both are provided then the existence of
# this option overrides the usage of that option. (string value)
#backdoor_socket = <None>

# Enables or disables logging values of all registered options when starting a
# service (at DEBUG level). (boolean value)
#log_options = true

# Specify a timeout after which a gracefully shutdown server will exit. Zero
# value means endless wait. (integer value)
#graceful_shutdown_timeout = 60


[api]
#
# Options under this group are used to define Nova API.

#
# From nova.conf
#

#
# This determines the strategy to use for authentication: keystone or noauth2.
# 'noauth2' is designed for testing only, as it does no actual credential
# checking. 'noauth2' provides administrative credentials only if 'admin' is
# specified as the username.
#  (string value)
# Allowed values: keystone, noauth2
#auth_strategy = keystone

#
# When True, the 'X-Forwarded-For' header is treated as the canonical remote
# address. When False (the default), the 'remote_address' header is used.
#
# You should only enable this if you have an HTML sanitizing proxy.
#  (boolean value)
#use_forwarded_for = false

#
# When gathering the existing metadata for a config drive, the EC2-style
# metadata is returned for all versions that don't appear in this option.
# As of the Liberty release, the available versions are:
#
# * 1.0
# * 2007-01-19
# * 2007-03-01
# * 2007-08-29
# * 2007-10-10
# * 2007-12-15
# * 2008-02-01
# * 2008-09-01
# * 2009-04-04
#
# The option is in the format of a single string, with each version separated
# by a space.
#
# Possible values:
#
# * Any string that represents zero or more versions, separated by spaces.
#  (string value)
#config_drive_skip_versions = 1.0 2007-01-19 2007-03-01 2007-08-29 2007-10-10 2007-12-15 2008-02-01 2008-09-01

#
# A list of vendordata providers.
#
# vendordata providers are how deployers can provide metadata via configdrive
# and metadata that is specific to their deployment. There are currently two
# supported providers: StaticJSON and DynamicJSON.
#
# StaticJSON reads a JSON file configured by the flag vendordata_jsonfile_path
# and places the JSON from that file into vendor_data.json and
# vendor_data2.json.
#
# DynamicJSON is configured via the vendordata_dynamic_targets flag, which is
# documented separately. For each of the endpoints specified in that flag, a
# section is added to the vendor_data2.json.
#
# For more information on the requirements for implementing a vendordata
# dynamic endpoint, please see the vendordata.rst file in the nova developer
# reference.
#
# Possible values:
#
# * A list of vendordata providers, with StaticJSON and DynamicJSON being
#   current options.
#
# Related options:
#
# * vendordata_dynamic_targets
# * vendordata_dynamic_ssl_certfile
# * vendordata_dynamic_connect_timeout
# * vendordata_dynamic_read_timeout
# * vendordata_dynamic_failure_fatal
#  (list value)
#vendordata_providers =

#
# A list of targets for the dynamic vendordata provider. These targets are of
# the form <name>@<url>.
#
# The dynamic vendordata provider collects metadata by contacting external REST
# services and querying them for information about the instance. This behaviour
# is documented in the vendordata.rst file in the nova developer reference.
#  (list value)
#vendordata_dynamic_targets =

#
# Path to an optional certificate file or CA bundle to verify dynamic
# vendordata REST services ssl certificates against.
#
# Possible values:
#
# * An empty string, or a path to a valid certificate file
#
# Related options:
#
# * vendordata_providers
# * vendordata_dynamic_targets
# * vendordata_dynamic_connect_timeout
# * vendordata_dynamic_read_timeout
# * vendordata_dynamic_failure_fatal
#  (string value)
#vendordata_dynamic_ssl_certfile =

#
# Maximum wait time for an external REST service to connect.
#
# Possible values:
#
# * Any integer with a value greater than three (the TCP packet retransmission
#   timeout). Note that instance start may be blocked during this wait time,
#   so this value should be kept small.
#
# Related options:
#
# * vendordata_providers
# * vendordata_dynamic_targets
# * vendordata_dynamic_ssl_certfile
# * vendordata_dynamic_read_timeout
# * vendordata_dynamic_failure_fatal
#  (integer value)
# Minimum value: 3
#vendordata_dynamic_connect_timeout = 5

#
# Maximum wait time for an external REST service to return data once connected.
#
# Possible values:
#
# * Any integer. Note that instance start is blocked during this wait time,
#   so this value should be kept small.
#
# Related options:
#
# * vendordata_providers
# * vendordata_dynamic_targets
# * vendordata_dynamic_ssl_certfile
# * vendordata_dynamic_connect_timeout
# * vendordata_dynamic_failure_fatal
#  (integer value)
# Minimum value: 0
#vendordata_dynamic_read_timeout = 5

#
# Should failures to fetch dynamic vendordata be fatal to instance boot?
#
# Related options:
#
# * vendordata_providers
# * vendordata_dynamic_targets
# * vendordata_dynamic_ssl_certfile
# * vendordata_dynamic_connect_timeout
# * vendordata_dynamic_read_timeout
#  (boolean value)
#vendordata_dynamic_failure_fatal = false

#
# This option is the time (in seconds) to cache metadata. When set to 0,
# metadata caching is disabled entirely; this is generally not recommended for
# performance reasons. Increasing this setting should improve response times
# of the metadata API when under heavy load. Higher values may increase memory
# usage, and result in longer times for host metadata changes to take effect.
#  (integer value)
# Minimum value: 0
#metadata_cache_expiration = 15

#
# Cloud providers may store custom data in vendor data file that will then be
# available to the instances via the metadata service, and to the rendering of
# config-drive. The default class for this, JsonFileVendorData, loads this
# information from a JSON file, whose path is configured by this option. If
# there is no path set by this option, the class returns an empty dictionary.
#
# Possible values:
#
# * Any string representing the path to the data file, or an empty string
#     (default).
#  (string value)
#vendordata_jsonfile_path = <None>

#
# As a query can potentially return many thousands of items, you can limit the
# maximum number of items in a single response by setting this option.
#  (integer value)
# Minimum value: 0
# Deprecated group/name - [DEFAULT]/osapi_max_limit
#max_limit = 1000

#
# This string is prepended to the normal URL that is returned in links to the
# OpenStack Compute API. If it is empty (the default), the URLs are returned
# unchanged.
#
# Possible values:
#
# * Any string, including an empty string (the default).
#  (string value)
# Deprecated group/name - [DEFAULT]/osapi_compute_link_prefix
#compute_link_prefix = <None>

#
# This string is prepended to the normal URL that is returned in links to
# Glance resources. If it is empty (the default), the URLs are returned
# unchanged.
#
# Possible values:
#
# * Any string, including an empty string (the default).
#  (string value)
# Deprecated group/name - [DEFAULT]/osapi_glance_link_prefix
#glance_link_prefix = <None>

# DEPRECATED:
# Operators can turn off the ability for a user to take snapshots of their
# instances by setting this option to False. When disabled, any attempt to
# take a snapshot will result in a HTTP 400 response ("Bad Request").
#  (boolean value)
# This option is deprecated for removal since 16.0.0.
# Its value may be silently ignored in the future.
# Reason: This option disables the createImage server action API in a non-
# discoverable way and is thus a barrier to interoperability. Also, it is not
# used for other APIs that create snapshots like shelve or createBackup.
# Disabling snapshots should be done via policy if so desired.
#allow_instance_snapshots = true

#
# This option is a list of all instance states for which network address
# information should not be returned from the API.
#
# Possible values:
#
#   A list of strings, where each string is a valid VM state, as defined in
#   nova/compute/vm_states.py. As of the Newton release, they are:
#
# * "active"
# * "building"
# * "paused"
# * "suspended"
# * "stopped"
# * "rescued"
# * "resized"
# * "soft-delete"
# * "deleted"
# * "error"
# * "shelved"
# * "shelved_offloaded"
#  (list value)
# Deprecated group/name - [DEFAULT]/osapi_hide_server_address_states
#hide_server_address_states = building

# The full path to the fping binary. (string value)
#fping_path = /usr/sbin/fping

#
# When True, the TenantNetworkController will query the Neutron API to get the
# default networks to use.
#
# Related options:
#
# * neutron_default_tenant_id
#  (boolean value)
#use_neutron_default_nets = false

#
# Tenant ID for getting the default network from Neutron API (also referred in
# some places as the 'project ID') to use.
#
# Related options:
#
# * use_neutron_default_nets
#  (string value)
#neutron_default_tenant_id = default

#
# Enables returning of the instance password by the relevant server API calls
# such as create, rebuild, evacuate, or rescue. If the hypervisor does not
# support password injection, then the password returned will not be correct,
# so if your hypervisor does not support password injection, set this to False.
#  (boolean value)
#enable_instance_password = true


[api_database]
#
# The *Nova API Database* is a separate database which is used for information
# which is used across *cells*. This database is mandatory since the Mitaka
# release (13.0.0).

#
# From nova.conf
#

# The SQLAlchemy connection string to use to connect to the database. (string
# value)
#connection = <None>

# If True, SQLite uses synchronous mode. (boolean value)
#sqlite_synchronous = true

# The SQLAlchemy connection string to use to connect to the slave database.
# (string value)
#slave_connection = <None>

# The SQL mode to be used for MySQL sessions. This option, including the
# default, overrides any server-set SQL mode. To use whatever SQL mode is set by
# the server configuration, set this to no value. Example: mysql_sql_mode=
# (string value)
#mysql_sql_mode = TRADITIONAL

# Timeout before idle SQL connections are reaped. (integer value)
#idle_timeout = 3600

# Maximum number of SQL connections to keep open in a pool. Setting a value of 0
# indicates no limit. (integer value)
#max_pool_size = <None>

# Maximum number of database connection retries during startup. Set to -1 to
# specify an infinite retry count. (integer value)
#max_retries = 10

# Interval between retries of opening a SQL connection. (integer value)
#retry_interval = 10

# If set, use this value for max_overflow with SQLAlchemy. (integer value)
#max_overflow = <None>

# Verbosity of SQL debugging information: 0=None, 100=Everything. (integer
# value)
#connection_debug = 0

# Add Python stack traces to SQL as comment strings. (boolean value)
#connection_trace = false

# If set, use this value for pool_timeout with SQLAlchemy. (integer value)
#pool_timeout = <None>


[barbican]

#
# From nova.conf
#

# Use this endpoint to connect to Barbican, for example:
# "http://localhost:9311/" (string value)
#barbican_endpoint = <None>

# Version of the Barbican API, for example: "v1" (string value)
#barbican_api_version = <None>

# Use this endpoint to connect to Keystone (string value)
#auth_endpoint = http://localhost/identity/v3

# Number of seconds to wait before retrying poll for key creation completion
# (integer value)
#retry_delay = 1

# Number of times to retry poll for key creation completion (integer value)
#number_of_retries = 60

# Specifies if insecure TLS (https) requests. If False, the server's certificate
# will not be validated (boolean value)
#verify_ssl = true


[cache]

#
# From nova.conf
#

# Prefix for building the configuration dictionary for the cache region. This
# should not need to be changed unless there is another dogpile.cache region
# with the same configuration name. (string value)
#config_prefix = cache.oslo

# Default TTL, in seconds, for any cached item in the dogpile.cache region. This
# applies to any cached method that doesn't have an explicit cache expiration
# time defined for it. (integer value)
#expiration_time = 600

# Dogpile.cache backend module. It is recommended that Memcache or Redis
# (dogpile.cache.redis) be used in production deployments. For eventlet-based or
# highly threaded servers, Memcache with pooling (oslo_cache.memcache_pool) is
# recommended. For low thread servers, dogpile.cache.memcached is recommended.
# Test environments with a single instance of the server can use the
# dogpile.cache.memory backend. (string value)
#backend = dogpile.cache.null

# Arguments supplied to the backend module. Specify this option once per
# argument to be passed to the dogpile.cache backend. Example format:
# "<argname>:<value>". (multi valued)
#backend_argument =

# Proxy classes to import that will affect the way the dogpile.cache backend
# functions. See the dogpile.cache documentation on changing-backend-behavior.
# (list value)
#proxies =

# Global toggle for caching. (boolean value)
#enabled = false

# Extra debugging from the cache backend (cache keys, get/set/delete/etc calls).
# This is only really useful if you need to see the specific cache-backend
# get/set/delete calls with the keys/values.  Typically this should be left set
# to false. (boolean value)
#debug_cache_backend = false

# Memcache servers in the format of "host:port". (dogpile.cache.memcache and
# oslo_cache.memcache_pool backends only). (list value)
#memcache_servers = localhost:11211

# Number of seconds memcached server is considered dead before it is tried
# again. (dogpile.cache.memcache and oslo_cache.memcache_pool backends only).
# (integer value)
#memcache_dead_retry = 300

# Timeout in seconds for every call to a server. (dogpile.cache.memcache and
# oslo_cache.memcache_pool backends only). (integer value)
#memcache_socket_timeout = 3

# Max total number of open connections to every memcached server.
# (oslo_cache.memcache_pool backend only). (integer value)
#memcache_pool_maxsize = 10

# Number of seconds a connection to memcached is held unused in the pool before
# it is closed. (oslo_cache.memcache_pool backend only). (integer value)
#memcache_pool_unused_timeout = 60

# Number of seconds that an operation will wait to get a memcache client
# connection. (integer value)
#memcache_pool_connection_get_timeout = 10


[cells]
#
# Cells options allow you to use cells functionality in openstack
# deployment.
#
# Note that the options in this group are only for cells v1 functionality, which
# is considered experimental and not recommended for new deployments. Cells v1
# is being replaced with cells v2, which starting in the 15.0.0 Ocata release is
# required and all Nova deployments will be at least a cells v2 cell of one.
#

#
# From nova.conf
#

# DEPRECATED:
# Topic.
#
# This is the message queue topic that cells nodes listen on. It is
# used when the cells service is started up to configure the queue,
# and whenever an RPC call to the scheduler is made.
#
# Possible values:
#
# * cells: This is the recommended and the default value.
#  (string value)
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# Configurable RPC topics provide little value and can result in a wide variety
# of errors. They should not be used.
#topic = cells

#
# Enable cell v1 functionality.
#
# Note that cells v1 is considered experimental and not recommended for new
# Nova deployments. Cells v1 is being replaced by cells v2 which starting in
# the 15.0.0 Ocata release, all Nova deployments are at least a cells v2 cell
# of one. Setting this option, or any other options in the [cells] group, is
# not required for cells v2.
#
# When this functionality is enabled, it lets you to scale an OpenStack
# Compute cloud in a more distributed fashion without having to use
# complicated technologies like database and message queue clustering.
# Cells are configured as a tree. The top-level cell should have a host
# that runs a nova-api service, but no nova-compute services. Each
# child cell should run all of the typical nova-* services in a regular
# Compute cloud except for nova-api. You can think of cells as a normal
# Compute deployment in that each cell has its own database server and
# message queue broker.
#
# Related options:
#
# * name: A unique cell name must be given when this functionality
#   is enabled.
# * cell_type: Cell type should be defined for all cells.
#  (boolean value)
#enable = false

#
# Name of the current cell.
#
# This value must be unique for each cell. Name of a cell is used as
# its id, leaving this option unset or setting the same name for
# two or more cells may cause unexpected behaviour.
#
# Related options:
#
# * enabled: This option is meaningful only when cells service
#   is enabled
#  (string value)
#name = nova

#
# Cell capabilities.
#
# List of arbitrary key=value pairs defining capabilities of the
# current cell to be sent to the parent cells. These capabilities
# are intended to be used in cells scheduler filters/weighers.
#
# Possible values:
#
# * key=value pairs list for example;
#   ``hypervisor=xenserver;kvm,os=linux;windows``
#  (list value)
#capabilities = hypervisor=xenserver;kvm,os=linux;windows

#
# Call timeout.
#
# Cell messaging module waits for response(s) to be put into the
# eventlet queue. This option defines the seconds waited for
# response from a call to a cell.
#
# Possible values:
#
# * An integer, corresponding to the interval time in seconds.
#  (integer value)
# Minimum value: 0
#call_timeout = 60

#
# Reserve percentage
#
# Percentage of cell capacity to hold in reserve, so the minimum
# amount of free resource is considered to be;
#
#     min_free = total * (reserve_percent / 100.0)
#
# This option affects both memory and disk utilization.
#
# The primary purpose of this reserve is to ensure some space is
# available for users who want to resize their instance to be larger.
# Note that currently once the capacity expands into this reserve
# space this option is ignored.
#
# Possible values:
#
# * An integer or float, corresponding to the percentage of cell capacity to
#   be held in reserve.
#  (floating point value)
#reserve_percent = 10.0

#
# Type of cell.
#
# When cells feature is enabled the hosts in the OpenStack Compute
# cloud are partitioned into groups. Cells are configured as a tree.
# The top-level cell's cell_type must be set to ``api``. All other
# cells are defined as a ``compute cell`` by default.
#
# Related option:
#
# * quota_driver: Disable quota checking for the child cells.
#   (nova.quota.NoopQuotaDriver)
#  (string value)
# Allowed values: api, compute
#cell_type = compute

#
# Mute child interval.
#
# Number of seconds after which a lack of capability and capacity
# update the child cell is to be treated as a mute cell. Then the
# child cell will be weighed as recommend highly that it be skipped.
#
# Possible values:
#
# * An integer, corresponding to the interval time in seconds.
#  (integer value)
#mute_child_interval = 300

#
# Bandwidth update interval.
#
# Seconds between bandwidth usage cache updates for cells.
#
# Possible values:
#
# * An integer, corresponding to the interval time in seconds.
#  (integer value)
#bandwidth_update_interval = 600

#
# Instance update sync database limit.
#
# Number of instances to pull from the database at one time for
# a sync. If there are more instances to update the results will
# be paged through.
#
# Possible values:
#
# * An integer, corresponding to a number of instances.
#  (integer value)
#instance_update_sync_database_limit = 100

#
# Mute weight multiplier.
#
# Multiplier used to weigh mute children. Mute children cells are
# recommended to be skipped so their weight is multiplied by this
# negative value.
#
# Possible values:
#
# * Negative numeric number
#  (floating point value)
#mute_weight_multiplier = -10000.0

#
# Ram weight multiplier.
#
# Multiplier used for weighing ram. Negative numbers indicate that
# Compute should stack VMs on one host instead of spreading out new
# VMs to more hosts in the cell.
#
# Possible values:
#
# * Numeric multiplier
#  (floating point value)
#ram_weight_multiplier = 10.0

#
# Offset weight multiplier
#
# Multiplier used to weigh offset weigher. Cells with higher
# weight_offsets in the DB will be preferred. The weight_offset
# is a property of a cell stored in the database. It can be used
# by a deployer to have scheduling decisions favor or disfavor
# cells based on the setting.
#
# Possible values:
#
# * Numeric multiplier
#  (floating point value)
#offset_weight_multiplier = 1.0

#
# Instance updated at threshold
#
# Number of seconds after an instance was updated or deleted to
# continue to update cells. This option lets cells manager to only
# attempt to sync instances that have been updated recently.
# i.e., a threshold of 3600 means to only update instances that
# have modified in the last hour.
#
# Possible values:
#
# * Threshold in seconds
#
# Related options:
#
# * This value is used with the ``instance_update_num_instances``
#   value in a periodic task run.
#  (integer value)
#instance_updated_at_threshold = 3600

#
# Instance update num instances
#
# On every run of the periodic task, nova cells manager will attempt to
# sync instance_updated_at_threshold number of instances. When the
# manager gets the list of instances, it shuffles them so that multiple
# nova-cells services do not attempt to sync the same instances in
# lockstep.
#
# Possible values:
#
# * Positive integer number
#
# Related options:
#
# * This value is used with the ``instance_updated_at_threshold``
#   value in a periodic task run.
#  (integer value)
#instance_update_num_instances = 1

#
# Maximum hop count
#
# When processing a targeted message, if the local cell is not the
# target, a route is defined between neighbouring cells. And the
# message is processed across the whole routing path. This option
# defines the maximum hop counts until reaching the target.
#
# Possible values:
#
# * Positive integer value
#  (integer value)
#max_hop_count = 10

#
# Cells scheduler.
#
# The class of the driver used by the cells scheduler. This should be
# the full Python path to the class to be used. If nothing is specified
# in this option, the CellsScheduler is used.
#  (string value)
#scheduler = nova.cells.scheduler.CellsScheduler

#
# RPC driver queue base.
#
# When sending a message to another cell by JSON-ifying the message
# and making an RPC cast to 'process_message', a base queue is used.
# This option defines the base queue name to be used when communicating
# between cells. Various topics by message type will be appended to this.
#
# Possible values:
#
# * The base queue name to be used when communicating between cells.
#  (string value)
#rpc_driver_queue_base = cells.intercell

#
# Scheduler filter classes.
#
# Filter classes the cells scheduler should use. An entry of
# "nova.cells.filters.all_filters" maps to all cells filters
# included with nova. As of the Mitaka release the following
# filter classes are available:
#
# Different cell filter: A scheduler hint of 'different_cell'
# with a value of a full cell name may be specified to route
# a build away from a particular cell.
#
# Image properties filter: Image metadata named
# 'hypervisor_version_requires' with a version specification
# may be specified to ensure the build goes to a cell which
# has hypervisors of the required version. If either the version
# requirement on the image or the hypervisor capability of the
# cell is not present, this filter returns without filtering out
# the cells.
#
# Target cell filter: A scheduler hint of 'target_cell' with a
# value of a full cell name may be specified to route a build to
# a particular cell. No error handling is done as there's no way
# to know whether the full path is a valid.
#
# As an admin user, you can also add a filter that directs builds
# to a particular cell.
#
#  (list value)
#scheduler_filter_classes = nova.cells.filters.all_filters

#
# Scheduler weight classes.
#
# Weigher classes the cells scheduler should use. An entry of
# "nova.cells.weights.all_weighers" maps to all cell weighers
# included with nova. As of the Mitaka release the following
# weight classes are available:
#
# mute_child: Downgrades the likelihood of child cells being
# chosen for scheduling requests, which haven't sent capacity
# or capability updates in a while. Options include
# mute_weight_multiplier (multiplier for mute children; value
# should be negative).
#
# ram_by_instance_type: Select cells with the most RAM capacity
# for the instance type being requested. Because higher weights
# win, Compute returns the number of available units for the
# instance type requested. The ram_weight_multiplier option defaults
# to 10.0 that adds to the weight by a factor of 10. Use a negative
# number to stack VMs on one host instead of spreading out new VMs
# to more hosts in the cell.
#
# weight_offset: Allows modifying the database to weight a particular
# cell. The highest weight will be the first cell to be scheduled for
# launching an instance. When the weight_offset of a cell is set to 0,
# it is unlikely to be picked but it could be picked if other cells
# have a lower weight, like if they're full. And when the weight_offset
# is set to a very high value (for example, '999999999999999'), it is
# likely to be picked if another cell do not have a higher weight.
#  (list value)
#scheduler_weight_classes = nova.cells.weights.all_weighers

#
# Scheduler retries.
#
# How many retries when no cells are available. Specifies how many
# times the scheduler tries to launch a new instance when no cells
# are available.
#
# Possible values:
#
# * Positive integer value
#
# Related options:
#
# * This value is used with the ``scheduler_retry_delay`` value
#   while retrying to find a suitable cell.
#  (integer value)
#scheduler_retries = 10

#
# Scheduler retry delay.
#
# Specifies the delay (in seconds) between scheduling retries when no
# cell can be found to place the new instance on. When the instance
# could not be scheduled to a cell after ``scheduler_retries`` in
# combination with ``scheduler_retry_delay``, then the scheduling
# of the instance failed.
#
# Possible values:
#
# * Time in seconds.
#
# Related options:
#
# * This value is used with the ``scheduler_retries`` value
#   while retrying to find a suitable cell.
#  (integer value)
#scheduler_retry_delay = 2

#
# DB check interval.
#
# Cell state manager updates cell status for all cells from the DB
# only after this particular interval time is passed. Otherwise cached
# status are used. If this value is 0 or negative all cell status are
# updated from the DB whenever a state is needed.
#
# Possible values:
#
# * Interval time, in seconds.
#
#  (integer value)
#db_check_interval = 60

#
# Optional cells configuration.
#
# Configuration file from which to read cells configuration. If given,
# overrides reading cells from the database.
#
# Cells store all inter-cell communication data, including user names
# and passwords, in the database. Because the cells data is not updated
# very frequently, use this option to specify a JSON file to store
# cells data. With this configuration, the database is no longer
# consulted when reloading the cells data. The file must have columns
# present in the Cell model (excluding common database fields and the
# id column). You must specify the queue connection information through
# a transport_url field, instead of username, password, and so on.
#
# The transport_url has the following form:
# rabbit://USERNAME:PASSWORD@HOSTNAME:PORT/VIRTUAL_HOST
#
# Possible values:
#
# The scheme can be either qpid or rabbit, the following sample shows
# this optional configuration:
#
#     {
#         "parent": {
#             "name": "parent",
#             "api_url": "http://api.example.com:8774",
#             "transport_url": "rabbit://rabbit.example.com",
#             "weight_offset": 0.0,
#             "weight_scale": 1.0,
#             "is_parent": true
#         },
#         "cell1": {
#             "name": "cell1",
#             "api_url": "http://api.example.com:8774",
#             "transport_url": "rabbit://rabbit1.example.com",
#             "weight_offset": 0.0,
#             "weight_scale": 1.0,
#             "is_parent": false
#         },
#         "cell2": {
#             "name": "cell2",
#             "api_url": "http://api.example.com:8774",
#             "transport_url": "rabbit://rabbit2.example.com",
#             "weight_offset": 0.0,
#             "weight_scale": 1.0,
#             "is_parent": false
#         }
#     }
#
#  (string value)
#cells_config = <None>


[cinder]

#
# From nova.conf
#

#
# Info to match when looking for cinder in the service catalog.
#
# Possible values:
#
# * Format is separated values of the form:
#   <service_type>:<service_name>:<endpoint_type>
#
# Note: Nova does not support the Cinder v1 API since the Nova 15.0.0 Ocata
# release.
#
# Related options:
#
# * endpoint_template - Setting this option will override catalog_info
#  (string value)
#catalog_info = volumev3:cinderv3:publicURL

#
# If this option is set then it will override service catalog lookup with
# this template for cinder endpoint
#
# Possible values:
#
# * URL for cinder endpoint API
#   e.g. http://localhost:8776/v2/%(project_id)s
#
# Note: Nova does not support the Cinder v1 API since the Nova 15.0.0 Ocata
# release.
#
# Related options:
#
# * catalog_info - If endpoint_template is not set, catalog_info will be used.
#  (string value)
#endpoint_template = <None>

#
# Region name of this node. This is used when picking the URL in the service
# catalog.
#
# Possible values:
#
# * Any string representing region name
#  (string value)
#os_region_name = <None>

#
# Number of times cinderclient should retry on any failed http call.
# 0 means connection is attempted only once. Setting it to any positive integer
# means that on failure connection is retried that many times e.g. setting it
# to 3 means total attempts to connect will be 4.
#
# Possible values:
#
# * Any integer value. 0 means connection is attempted only once
#  (integer value)
# Minimum value: 0
#http_retries = 3

#
# Allow attach between instance and volume in different availability zones.
#
# If False, volumes attached to an instance must be in the same availability
# zone in Cinder as the instance availability zone in Nova.
# This also means care should be taken when booting an instance from a volume
# where source is not "volume" because Nova will attempt to create a volume
# using
# the same availability zone as what is assigned to the instance.
# If that AZ is not in Cinder (or allow_availability_zone_fallback=False in
# cinder.conf), the volume create request will fail and the instance will fail
# the build request.
# By default there is no availability zone restriction on volume attach.
#  (boolean value)
#cross_az_attach = true


[compute]

#
# From nova.conf
#

#
# Defines which driver to use for controlling virtualization.
#
# Possible values:
#
# * ``libvirt.LibvirtDriver``
# * ``xenapi.XenAPIDriver``
# * ``fake.FakeDriver``
# * ``ironic.IronicDriver``
# * ``vmwareapi.VMwareVCDriver``
# * ``hyperv.HyperVDriver``
#  (string value)
#compute_driver = <None>

#
# Allow destination machine to match source for resize. Useful when
# testing in single-host environments. By default it is not allowed
# to resize to the same host. Setting this option to true will add
# the same host to the destination options. Also set to true
# if you allow the ServerGroupAffinityFilter and need to resize.
#  (boolean value)
#allow_resize_to_same_host = false

#
# Availability zone to use when user doesn't specify one.
#
# This option is used by the scheduler to determine which availability
# zone to place a new VM instance into if the user did not specify one
# at the time of VM boot request.
#
# Possible values:
#
# * Any string representing an availability zone name
# * Default value is None.
#  (string value)
#default_schedule_zone = <None>

#
# Image properties that should not be inherited from the instance
# when taking a snapshot.
#
# This option gives an opportunity to select which image-properties
# should not be inherited by newly created snapshots.
#
# Possible values:
#
# * A list whose item is an image property. Usually only the image
#   properties that are only needed by base images can be included
#   here, since the snapshots that are created from the base images
#   doesn't need them.
# * Default list: ['cache_in_nova', 'bittorrent']
#  (list value)
#non_inheritable_image_properties = cache_in_nova,bittorrent

# DEPRECATED:
# This option is used to decide when an image should have no external
# ramdisk or kernel. By default this is set to 'nokernel', so when an
# image is booted with the property 'kernel_id' with the value
# 'nokernel', Nova assumes the image doesn't require an external kernel
# and ramdisk.
#  (string value)
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# When an image is booted with the property 'kernel_id' with the value
# 'nokernel', Nova assumes the image doesn't require an external kernel and
# ramdisk. This option allows user to change the API behaviour which should not
# be allowed and this value "nokernel" should be hard coded.
#null_kernel = nokernel

# DEPRECATED:
# When creating multiple instances with a single request using the
# os-multiple-create API extension, this template will be used to build
# the display name for each instance. The benefit is that the instances
# end up with different hostnames. Example display names when creating
# two VM's: name-1, name-2.
#
# Possible values:
#
# * Valid keys for the template are: name, uuid, count.
#  (string value)
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# This config changes API behaviour. All changes in API behaviour should be
# discoverable.
#multi_instance_display_name_template = %(name)s-%(count)d

#
# Maximum number of devices that will result in a local image being
# created on the hypervisor node.
#
# A negative number means unlimited. Setting max_local_block_devices
# to 0 means that any request that attempts to create a local disk
# will fail. This option is meant to limit the number of local discs
# (so root local disc that is the result of --image being used, and
# any other ephemeral and swap disks). 0 does not mean that images
# will be automatically converted to volumes and boot instances from
# volumes - it just means that all requests that attempt to create a
# local disk will fail.
#
# Possible values:
#
# * 0: Creating a local disk is not allowed.
# * Negative number: Allows unlimited number of local discs.
# * Positive number: Allows only these many number of local discs.
#                        (Default value is 3).
#  (integer value)
#max_local_block_devices = 3

#
# A list of monitors that can be used for getting compute metrics.
# You can use the alias/name from the setuptools entry points for
# nova.compute.monitors.* namespaces. If no namespace is supplied,
# the "cpu." namespace is assumed for backwards-compatibility.
#
# Possible values:
#
# * An empty list will disable the feature(Default).
# * An example value that would enable both the CPU and NUMA memory
#   bandwidth monitors that used the virt driver variant:
#   ["cpu.virt_driver", "numa_mem_bw.virt_driver"]
#  (list value)
#compute_monitors =

#
# The default format an ephemeral_volume will be formatted with on creation.
#
# Possible values:
#
# * ``ext2``
# * ``ext3``
# * ``ext4``
# * ``xfs``
# * ``ntfs`` (only for Windows guests)
#  (string value)
#default_ephemeral_format = <None>

#
# Determine if instance should boot or fail on VIF plugging timeout.
#
# Nova sends a port update to Neutron after an instance has been scheduled,
# providing Neutron with the necessary information to finish setup of the port.
# Once completed, Neutron notifies Nova that it has finished setting up the
# port, at which point Nova resumes the boot of the instance since network
# connectivity is now supposed to be present. A timeout will occur if the reply
# is not received after a given interval.
#
# This option determines what Nova does when the VIF plugging timeout event
# happens. When enabled, the instance will error out. When disabled, the
# instance will continue to boot on the assumption that the port is ready.
#
# Possible values:
#
# * True: Instances should fail after VIF plugging timeout
# * False: Instances should continue booting after VIF plugging timeout
#  (boolean value)
#vif_plugging_is_fatal = true

#
# Timeout for Neutron VIF plugging event message arrival.
#
# Number of seconds to wait for Neutron vif plugging events to
# arrive before continuing or failing (see 'vif_plugging_is_fatal').
#
# Related options:
#
# * vif_plugging_is_fatal - If ``vif_plugging_timeout`` is set to zero and
#   ``vif_plugging_is_fatal`` is False, events should not be expected to
#   arrive at all.
#  (integer value)
# Minimum value: 0
#vif_plugging_timeout = 300

# Path to '/etc/network/interfaces' template.
#
# The path to a template file for the '/etc/network/interfaces'-style file,
# which
# will be populated by nova and subsequently used by cloudinit. This provides a
# method to configure network connectivity in environments without a DHCP
# server.
#
# The template will be rendered using Jinja2 template engine, and receive a
# top-level key called ``interfaces``. This key will contain a list of
# dictionaries, one for each interface.
#
# Refer to the cloudinit documentaion for more information:
#
#   https://cloudinit.readthedocs.io/en/latest/topics/datasources.html
#
# Possible values:
#
# * A path to a Jinja2-formatted template for a Debian '/etc/network/interfaces'
#   file. This applies even if using a non Debian-derived guest.
#
# Related options:
#
# * ``flat_inject``: This must be set to ``True`` to ensure nova embeds network
#   configuration information in the metadata provided through the config drive.
#  (string value)
#injected_network_template = $pybasedir/nova/virt/interfaces.template

#
# The image preallocation mode to use.
#
# Image preallocation allows storage for instance images to be allocated up
# front
# when the instance is initially provisioned. This ensures immediate feedback is
# given if enough space isn't available. In addition, it should significantly
# improve performance on writes to new blocks and may even improve I/O
# performance to prewritten blocks due to reduced fragmentation.
#
# Possible values:
#
# * "none"  => no storage provisioning is done up front
# * "space" => storage is fully allocated at instance start
#  (string value)
# Allowed values: none, space
#preallocate_images = none

#
# Enable use of copy-on-write (cow) images.
#
# QEMU/KVM allow the use of qcow2 as backing files. By disabling this,
# backing files will not be used.
#  (boolean value)
#use_cow_images = true

#
# Force conversion of backing images to raw format.
#
# Possible values:
#
# * True: Backing image files will be converted to raw image format
# * False: Backing image files will not be converted
#
# Related options:
#
# * ``compute_driver``: Only the libvirt driver uses this option.
#  (boolean value)
#force_raw_images = true

#
# Name of the mkfs commands for ephemeral device.
#
# The format is <os_type>=<mkfs command>
#  (multi valued)
#virt_mkfs =

#
# Enable resizing of filesystems via a block device.
#
# If enabled, attempt to resize the filesystem by accessing the image over a
# block device. This is done by the host and may not be necessary if the image
# contains a recent version of cloud-init. Possible mechanisms require the nbd
# driver (for qcow and raw), or loop (for raw).
#  (boolean value)
#resize_fs_using_block_device = false

# Amount of time, in seconds, to wait for NBD device start up. (integer value)
# Minimum value: 0
#timeout_nbd = 10

#
# Location of cached images.
#
# This is NOT the full path - just a folder name relative to '$instances_path'.
# For per-compute-host cached images, set to '_base_$my_ip'
#  (string value)
#image_cache_subdirectory_name = _base

# Should unused base images be removed? (boolean value)
#remove_unused_base_images = true

#
# Unused unresized base images younger than this will not be removed.
#  (integer value)
#remove_unused_original_minimum_age_seconds = 86400

#
# Generic property to specify the pointer type.
#
# Input devices allow interaction with a graphical framebuffer. For
# example to provide a graphic tablet for absolute cursor movement.
#
# If set, the 'hw_pointer_model' image property takes precedence over
# this configuration option.
#
# Possible values:
#
# * None: Uses default behavior provided by drivers (mouse on PS2 for
#         libvirt x86)
# * ps2mouse: Uses relative movement. Mouse connected by PS2
# * usbtablet: Uses absolute movement. Tablet connect by USB
#
# Related options:
#
# * usbtablet must be configured with VNC enabled or SPICE enabled and SPICE
#   agent disabled. When used with libvirt the instance mode should be
#   configured as HVM.
#   (string value)
# Allowed values: <None>, ps2mouse, usbtablet
#pointer_model = usbtablet


[conductor]
#
# Options under this group are used to define Conductor's communication,
# which manager should be act as a proxy between computes and database,
# and finally, how many worker processes will be used.

#
# From nova.conf
#

# DEPRECATED:
# Topic exchange name on which conductor nodes listen.
#  (string value)
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# There is no need to let users choose the RPC topic for all services - there
# is little gain from this. Furthermore, it makes it really easy to break Nova
# by using this option.
#topic = conductor

#
# Number of workers for OpenStack Conductor service. The default will be the
# number of CPUs available.
#  (integer value)
#workers = <None>


[console]
#
# Options under this group allow to tune the configuration of the console proxy
# service.
#
# Note: in configuration of every compute is a ``console_host`` option,
# which allows to select the console proxy service to connect to.

#
# From nova.conf
#

#
# Adds list of allowed origins to the console websocket proxy to allow
# connections from other origin hostnames.
# Websocket proxy matches the host header with the origin header to
# prevent cross-site requests. This list specifies if any there are
# values other than host are allowed in the origin header.
#
# Possible values:
#
# * A list where each element is an allowed origin hostnames, else an empty list
#  (list value)
# Deprecated group/name - [DEFAULT]/console_allowed_origins
#allowed_origins =


[consoleauth]

#
# From nova.conf
#

#
# The lifetime of a console auth token.
#
# A console auth token is used in authorizing console access for a user.
# Once the auth token time to live count has elapsed, the token is
# considered expired.  Expired tokens are then deleted.
#  (integer value)
# Minimum value: 0
# Deprecated group/name - [DEFAULT]/console_token_ttl
#token_ttl = 600


[cors]

#
# From oslo.middleware
#

# Indicate whether this resource may be shared with the domain received in the
# requests "origin" header. Format: "<protocol>://<host>[:<port>]", no trailing
# slash. Example: https://horizon.example.com (list value)
#allowed_origin = <None>

# Indicate that the actual request can include user credentials (boolean value)
#allow_credentials = true

# Indicate which headers are safe to expose to the API. Defaults to HTTP Simple
# Headers. (list value)
#expose_headers = X-Auth-Token,X-Openstack-Request-Id,X-Subject-Token,X-Service-Token

# Maximum cache age of CORS preflight requests. (integer value)
#max_age = 3600

# Indicate which methods can be used during the actual request. (list value)
#allow_methods = GET,PUT,POST,DELETE,PATCH

# Indicate which header field names may be used during the actual request. (list
# value)
#allow_headers = X-Auth-Token,X-Openstack-Request-Id,X-Identity-Status,X-Roles,X-Service-Catalog,X-User-Id,X-Tenant-Id


[cors.subdomain]

#
# From oslo.middleware
#

# Indicate whether this resource may be shared with the domain received in the
# requests "origin" header. Format: "<protocol>://<host>[:<port>]", no trailing
# slash. Example: https://horizon.example.com (list value)
#allowed_origin = <None>

# Indicate that the actual request can include user credentials (boolean value)
#allow_credentials = true

# Indicate which headers are safe to expose to the API. Defaults to HTTP Simple
# Headers. (list value)
#expose_headers = X-Auth-Token,X-Openstack-Request-Id,X-Subject-Token,X-Service-Token

# Maximum cache age of CORS preflight requests. (integer value)
#max_age = 3600

# Indicate which methods can be used during the actual request. (list value)
#allow_methods = GET,PUT,POST,DELETE,PATCH

# Indicate which header field names may be used during the actual request. (list
# value)
#allow_headers = X-Auth-Token,X-Openstack-Request-Id,X-Identity-Status,X-Roles,X-Service-Catalog,X-User-Id,X-Tenant-Id


[crypto]

#
# From nova.conf
#

#
# Filename of root CA (Certificate Authority). This is a container format
# and includes root certificates.
#
# Possible values:
#
# * Any file name containing root CA, cacert.pem is default
#
# Related options:
#
# * ca_path
#  (string value)
#ca_file = cacert.pem

#
# Filename of a private key.
#
# Related options:
#
# * keys_path
#  (string value)
#key_file = private/cakey.pem

#
# Filename of root Certificate Revocation List (CRL). This is a list of
# certificates that have been revoked, and therefore, entities presenting
# those (revoked) certificates should no longer be trusted.
#
# Related options:
#
# * ca_path
#  (string value)
#crl_file = crl.pem

#
# Directory path where keys are located.
#
# Related options:
#
# * key_file
#  (string value)
#keys_path = $state_path/keys

#
# Directory path where root CA is located.
#
# Related options:
#
# * ca_file
#  (string value)
#ca_path = $state_path/CA

# Option to enable/disable use of CA for each project. (boolean value)
#use_project_ca = false

#
# Subject for certificate for users, %s for
# project, user, timestamp
#  (string value)
#user_cert_subject = /C=US/ST=California/O=OpenStack/OU=NovaDev/CN=%.16s-%.16s-%s

#
# Subject for certificate for projects, %s for
# project, timestamp
#  (string value)
#project_cert_subject = /C=US/ST=California/O=OpenStack/OU=NovaDev/CN=project-ca-%.16s-%s


[database]

#
# From oslo.db
#

# If True, SQLite uses synchronous mode. (boolean value)
#sqlite_synchronous = true

# The back end to use for the database. (string value)
# Deprecated group/name - [DEFAULT]/db_backend
#backend = sqlalchemy

# The SQLAlchemy connection string to use to connect to the database. (string
# value)
# Deprecated group/name - [DEFAULT]/sql_connection
# Deprecated group/name - [DATABASE]/sql_connection
# Deprecated group/name - [sql]/connection
#connection = <None>

# The SQLAlchemy connection string to use to connect to the slave database.
# (string value)
#slave_connection = <None>

# The SQL mode to be used for MySQL sessions. This option, including the
# default, overrides any server-set SQL mode. To use whatever SQL mode is set by
# the server configuration, set this to no value. Example: mysql_sql_mode=
# (string value)
#mysql_sql_mode = TRADITIONAL

# Timeout before idle SQL connections are reaped. (integer value)
# Deprecated group/name - [DEFAULT]/sql_idle_timeout
# Deprecated group/name - [DATABASE]/sql_idle_timeout
# Deprecated group/name - [sql]/idle_timeout
#idle_timeout = 3600

# Minimum number of SQL connections to keep open in a pool. (integer value)
# Deprecated group/name - [DEFAULT]/sql_min_pool_size
# Deprecated group/name - [DATABASE]/sql_min_pool_size
#min_pool_size = 1

# Maximum number of SQL connections to keep open in a pool. Setting a value of 0
# indicates no limit. (integer value)
# Deprecated group/name - [DEFAULT]/sql_max_pool_size
# Deprecated group/name - [DATABASE]/sql_max_pool_size
#max_pool_size = 5

# Maximum number of database connection retries during startup. Set to -1 to
# specify an infinite retry count. (integer value)
# Deprecated group/name - [DEFAULT]/sql_max_retries
# Deprecated group/name - [DATABASE]/sql_max_retries
#max_retries = 10

# Interval between retries of opening a SQL connection. (integer value)
# Deprecated group/name - [DEFAULT]/sql_retry_interval
# Deprecated group/name - [DATABASE]/reconnect_interval
#retry_interval = 10

# If set, use this value for max_overflow with SQLAlchemy. (integer value)
# Deprecated group/name - [DEFAULT]/sql_max_overflow
# Deprecated group/name - [DATABASE]/sqlalchemy_max_overflow
#max_overflow = 50

# Verbosity of SQL debugging information: 0=None, 100=Everything. (integer
# value)
# Minimum value: 0
# Maximum value: 100
# Deprecated group/name - [DEFAULT]/sql_connection_debug
#connection_debug = 0

# Add Python stack traces to SQL as comment strings. (boolean value)
# Deprecated group/name - [DEFAULT]/sql_connection_trace
#connection_trace = false

# If set, use this value for pool_timeout with SQLAlchemy. (integer value)
# Deprecated group/name - [DATABASE]/sqlalchemy_pool_timeout
#pool_timeout = <None>

# Enable the experimental use of database reconnect on connection lost. (boolean
# value)
#use_db_reconnect = false

# Seconds between retries of a database transaction. (integer value)
#db_retry_interval = 1

# If True, increases the interval between retries of a database operation up to
# db_max_retry_interval. (boolean value)
#db_inc_retry_interval = true

# If db_inc_retry_interval is set, the maximum seconds between retries of a
# database operation. (integer value)
#db_max_retry_interval = 10

# Maximum retries in case of connection error or deadlock error before error is
# raised. Set to -1 to specify an infinite retry count. (integer value)
#db_max_retries = 20

#
# From oslo.db.concurrency
#

# Enable the experimental use of thread pooling for all DB API calls (boolean
# value)
# Deprecated group/name - [DEFAULT]/dbapi_use_tpool
#use_tpool = false


[ephemeral_storage_encryption]

#
# From nova.conf
#

#
# Enables/disables LVM ephemeral storage encryption.
#  (boolean value)
#enabled = false

#
# Cipher-mode string to be used.
#
# The cipher and mode to be used to encrypt ephemeral storage. The set of
# cipher-mode combinations available depends on kernel support. According
# to the dm-crypt documentation, the cipher is expected to be in the format:
# "<cipher>-<chainmode>-<ivmode>".
#
# Possible values:
#
# * Any crypto option listed in ``/proc/crypto``.
#  (string value)
#cipher = aes-xts-plain64

#
# Encryption key length in bits.
#
# The bit length of the encryption key to be used to encrypt ephemeral storage.
# In XTS mode only half of the bits are used for encryption key.
#  (integer value)
# Minimum value: 1
#key_size = 512


[filter_scheduler]

#
# From nova.conf
#

#
# Size of subset of best hosts selected by scheduler.
#
# New instances will be scheduled on a host chosen randomly from a subset of the
# N best hosts, where N is the value set by this option.
#
# Setting this to a value greater than 1 will reduce the chance that multiple
# scheduler processes handling similar requests will select the same host,
# creating a potential race condition. By selecting a host randomly from the N
# hosts that best fit the request, the chance of a conflict is reduced. However,
# the higher you set this value, the less optimal the chosen host may be for a
# given request.
#
# This option is only used by the FilterScheduler and its subclasses; if you use
# a different scheduler, this option has no effect.
#
# Possible values:
#
# * An integer, where the integer corresponds to the size of a host subset. Any
#   integer is valid, although any value less than 1 will be treated as 1
#  (integer value)
# Minimum value: 1
# Deprecated group/name - [DEFAULT]/scheduler_host_subset_size
#host_subset_size = 1

#
# The number of instances that can be actively performing IO on a host.
#
# Instances performing IO includes those in the following states: build, resize,
# snapshot, migrate, rescue, unshelve.
#
# This option is only used by the FilterScheduler and its subclasses; if you use
# a different scheduler, this option has no effect. Also note that this setting
# only affects scheduling if the 'io_ops_filter' filter is enabled.
#
# Possible values:
#
# * An integer, where the integer corresponds to the max number of instances
#   that can be actively performing IO on any given host.
#  (integer value)
#max_io_ops_per_host = 8

#
# Maximum number of instances that be active on a host.
#
# If you need to limit the number of instances on any given host, set this
# option
# to the maximum number of instances you want to allow. The num_instances_filter
# will reject any host that has at least as many instances as this option's
# value.
#
# This option is only used by the FilterScheduler and its subclasses; if you use
# a different scheduler, this option has no effect. Also note that this setting
# only affects scheduling if the 'num_instances_filter' filter is enabled.
#
# Possible values:
#
# * An integer, where the integer corresponds to the max instances that can be
#   scheduled on a host.
#  (integer value)
# Minimum value: 1
#max_instances_per_host = 50

#
# Enable querying of individual hosts for instance information.
#
# The scheduler may need information about the instances on a host in order to
# evaluate its filters and weighers. The most common need for this information
# is
# for the (anti-)affinity filters, which need to choose a host based on the
# instances already running on a host.
#
# If the configured filters and weighers do not need this information, disabling
# this option will improve performance. It may also be disabled when the
# tracking
# overhead proves too heavy, although this will cause classes requiring host
# usage data to query the database on each request instead.
#
# This option is only used by the FilterScheduler and its subclasses; if you use
# a different scheduler, this option has no effect.
#
# NOTE: In a multi-cell (v2) setup where the cell MQ is separated from the
# top-level, computes cannot directly communicate with the scheduler. Thus,
# this option cannot be enabled in that scenario. See also the
# [workarounds]/disable_group_policy_check_upcall option.
#  (boolean value)
# Deprecated group/name - [DEFAULT]/scheduler_tracks_instance_changes
#track_instance_changes = true

#
# Filters that the scheduler can use.
#
# An unordered list of the filter classes the nova scheduler may apply.  Only
# the
# filters specified in the 'scheduler_enabled_filters' option will be used, but
# any filter appearing in that option must also be included in this list.
#
# By default, this is set to all filters that are included with nova.
#
# This option is only used by the FilterScheduler and its subclasses; if you use
# a different scheduler, this option has no effect.
#
# Possible values:
#
# * A list of zero or more strings, where each string corresponds to the name of
#   a filter that may be used for selecting a host
#
# Related options:
#
# * scheduler_enabled_filters
#  (multi valued)
# Deprecated group/name - [DEFAULT]/scheduler_available_filters
#available_filters = nova.scheduler.filters.all_filters

#
# Filters that the scheduler will use.
#
# An ordered list of filter class names that will be used for filtering
# hosts. Ignore the word 'default' in the name of this option: these filters
# will
# *always* be applied, and they will be applied in the order they are listed so
# place your most restrictive filters first to make the filtering process more
# efficient.
#
# This option is only used by the FilterScheduler and its subclasses; if you use
# a different scheduler, this option has no effect.
#
# Possible values:
#
# * A list of zero or more strings, where each string corresponds to the name of
#   a filter to be used for selecting a host
#
# Related options:
#
# * All of the filters in this option *must* be present in the
#   'scheduler_available_filters' option, or a SchedulerHostFilterNotFound
#   exception will be raised.
#  (list value)
# Deprecated group/name - [DEFAULT]/scheduler_default_filters
#enabled_filters = RetryFilter,AvailabilityZoneFilter,RamFilter,DiskFilter,ComputeFilter,ComputeCapabilitiesFilter,ImagePropertiesFilter,ServerGroupAntiAffinityFilter,ServerGroupAffinityFilter

#
# Filters used for filtering baremetal hosts.
#
# Filters are applied in order, so place your most restrictive filters first to
# make the filtering process more efficient.
#
# This option is only used by the FilterScheduler and its subclasses; if you use
# a different scheduler, this option has no effect.
#
# Possible values:
#
# * A list of zero or more strings, where each string corresponds to the name of
#   a filter to be used for selecting a baremetal host
#
# Related options:
#
# * If the 'scheduler_use_baremetal_filters' option is False, this option has
#   no effect.
#  (list value)
# Deprecated group/name - [DEFAULT]/baremetal_scheduler_default_filters
#baremetal_enabled_filters = RetryFilter,AvailabilityZoneFilter,ComputeFilter,ComputeCapabilitiesFilter,ImagePropertiesFilter,ExactRamFilter,ExactDiskFilter,ExactCoreFilter

#
# Enable baremetal filters.
#
# Set this to True to tell the nova scheduler that it should use the filters
# specified in the 'baremetal_scheduler_enabled_filters' option. If you are not
# scheduling baremetal nodes, leave this at the default setting of False.
#
# This option is only used by the FilterScheduler and its subclasses; if you use
# a different scheduler, this option has no effect.
#
# Related options:
#
# * If this option is set to True, then the filters specified in the
#   'baremetal_scheduler_enabled_filters' are used instead of the filters
#   specified in 'scheduler_enabled_filters'.
#  (boolean value)
# Deprecated group/name - [DEFAULT]/scheduler_use_baremetal_filters
#use_baremetal_filters = false

#
# Weighers that the scheduler will use.
#
# Only hosts which pass the filters are weighed. The weight for any host starts
# at 0, and the weighers order these hosts by adding to or subtracting from the
# weight assigned by the previous weigher. Weights may become negative. An
# instance will be scheduled to one of the N most-weighted hosts, where N is
# 'scheduler_host_subset_size'.
#
# By default, this is set to all weighers that are included with Nova.
#
# This option is only used by the FilterScheduler and its subclasses; if you use
# a different scheduler, this option has no effect.
#
# Possible values:
#
# * A list of zero or more strings, where each string corresponds to the name of
#   a weigher that will be used for selecting a host
#  (list value)
# Deprecated group/name - [DEFAULT]/scheduler_weight_classes
#weight_classes = nova.scheduler.weights.all_weighers

#
# Ram weight multipler ratio.
#
# This option determines how hosts with more or less available RAM are weighed.
# A
# positive value will result in the scheduler preferring hosts with more
# available RAM, and a negative number will result in the scheduler preferring
# hosts with less available RAM. Another way to look at it is that positive
# values for this option will tend to spread instances across many hosts, while
# negative values will tend to fill up (stack) hosts as much as possible before
# scheduling to a less-used host. The absolute value, whether positive or
# negative, controls how strong the RAM weigher is relative to other weighers.
#
# This option is only used by the FilterScheduler and its subclasses; if you use
# a different scheduler, this option has no effect. Also note that this setting
# only affects scheduling if the 'ram' weigher is enabled.
#
# Possible values:
#
# * An integer or float value, where the value corresponds to the multipler
#   ratio for this weigher.
#  (floating point value)
#ram_weight_multiplier = 1.0

#
# Disk weight multipler ratio.
#
# Multiplier used for weighing free disk space. Negative numbers mean to
# stack vs spread.
#
# This option is only used by the FilterScheduler and its subclasses; if you use
# a different scheduler, this option has no effect. Also note that this setting
# only affects scheduling if the 'disk' weigher is enabled.
#
# Possible values:
#
# * An integer or float value, where the value corresponds to the multipler
#   ratio for this weigher.
#  (floating point value)
#disk_weight_multiplier = 1.0

#
# IO operations weight multipler ratio.
#
# This option determines how hosts with differing workloads are weighed.
# Negative
# values, such as the default, will result in the scheduler preferring hosts
# with
# lighter workloads whereas positive values will prefer hosts with heavier
# workloads. Another way to look at it is that positive values for this option
# will tend to schedule instances onto hosts that are already busy, while
# negative values will tend to distribute the workload across more hosts. The
# absolute value, whether positive or negative, controls how strong the io_ops
# weigher is relative to other weighers.
#
# This option is only used by the FilterScheduler and its subclasses; if you use
# a different scheduler, this option has no effect. Also note that this setting
# only affects scheduling if the 'io_ops' weigher is enabled.
#
# Possible values:
#
# * An integer or float value, where the value corresponds to the multipler
#   ratio for this weigher.
#  (floating point value)
#io_ops_weight_multiplier = -1.0

#
# Multiplier used for weighing hosts for group soft-affinity.
#
# Possible values:
#
# * An integer or float value, where the value corresponds to weight multiplier
#   for hosts with group soft affinity. Only a positive value are meaningful, as
#   negative values would make this behave as a soft anti-affinity weigher.
#  (floating point value)
#soft_affinity_weight_multiplier = 1.0

#
# Multiplier used for weighing hosts for group soft-anti-affinity.
#
# Possible values:
#
# * An integer or float value, where the value corresponds to weight multiplier
#   for hosts with group soft anti-affinity. Only a positive value are
#   meaningful, as negative values would make this behave as a soft affinity
#   weigher.
#  (floating point value)
#soft_anti_affinity_weight_multiplier = 1.0

#
# List of UUIDs for images that can only be run on certain hosts.
#
# If there is a need to restrict some images to only run on certain designated
# hosts, list those image UUIDs here.
#
# This option is only used by the FilterScheduler and its subclasses; if you use
# a different scheduler, this option has no effect. Also note that this setting
# only affects scheduling if the 'IsolatedHostsFilter' filter is enabled.
#
# Possible values:
#
# * A list of UUID strings, where each string corresponds to the UUID of an
#   image
#
# Related options:
#
# * scheduler/isolated_hosts
# * scheduler/restrict_isolated_hosts_to_isolated_images
#  (list value)
#isolated_images =

#
# List of hosts that can only run certain images.
#
# If there is a need to restrict some images to only run on certain designated
# hosts, list those host names here.
#
# This option is only used by the FilterScheduler and its subclasses; if you use
# a different scheduler, this option has no effect. Also note that this setting
# only affects scheduling if the 'IsolatedHostsFilter' filter is enabled.
#
# Possible values:
#
# * A list of strings, where each string corresponds to the name of a host
#
# Related options:
#
# * scheduler/isolated_images
# * scheduler/restrict_isolated_hosts_to_isolated_images
#  (list value)
#isolated_hosts =

#
# Prevent non-isolated images from being built on isolated hosts.
#
# This option is only used by the FilterScheduler and its subclasses; if you use
# a different scheduler, this option has no effect. Also note that this setting
# only affects scheduling if the 'IsolatedHostsFilter' filter is enabled. Even
# then, this option doesn't affect the behavior of requests for isolated images,
# which will *always* be restricted to isolated hosts.
#
# Related options:
#
# * scheduler/isolated_images
# * scheduler/isolated_hosts
#  (boolean value)
#restrict_isolated_hosts_to_isolated_images = true

#
# Image property namespace for use in the host aggregate.
#
# Images and hosts can be configured so that certain images can only be
# scheduled
# to hosts in a particular aggregate. This is done with metadata values set on
# the host aggregate that are identified by beginning with the value of this
# option. If the host is part of an aggregate with such a metadata key, the
# image
# in the request spec must have the value of that metadata in its properties in
# order for the scheduler to consider the host as acceptable.
#
# This option is only used by the FilterScheduler and its subclasses; if you use
# a different scheduler, this option has no effect. Also note that this setting
# only affects scheduling if the 'aggregate_image_properties_isolation' filter
# is
# enabled.
#
# Possible values:
#
# * A string, where the string corresponds to an image property namespace
#
# Related options:
#
# * aggregate_image_properties_isolation_separator
#  (string value)
#aggregate_image_properties_isolation_namespace = <None>

#
# Separator character(s) for image property namespace and name.
#
# When using the aggregate_image_properties_isolation filter, the relevant
# metadata keys are prefixed with the namespace defined in the
# aggregate_image_properties_isolation_namespace configuration option plus a
# separator. This option defines the separator to be used.
#
# This option is only used by the FilterScheduler and its subclasses; if you use
# a different scheduler, this option has no effect. Also note that this setting
# only affects scheduling if the 'aggregate_image_properties_isolation' filter
# is enabled.
#
# Possible values:
#
# * A string, where the string corresponds to an image property namespace
#   separator character
#
# Related options:
#
# * aggregate_image_properties_isolation_namespace
#  (string value)
#aggregate_image_properties_isolation_separator = .


[glance]
# Configuration options for the Image service

#
# From nova.conf
#

#
# List of glance api servers endpoints available to nova.
#
# https is used for ssl-based glance api servers.
#
# Possible values:
#
# * A list of any fully qualified url of the form
# "scheme://hostname:port[/path]"
#   (i.e. "http://10.0.1.0:9292" or "https://my.glance.server/image").
#  (list value)
#api_servers = <None>

#
# Enable insecure SSL (https) requests to glance.
#
# This setting can be used to turn off verification of the glance server
# certificate against the certificate authorities.
#  (boolean value)
#api_insecure = false

#
# Enable glance operation retries.
#
# Specifies the number of retries when uploading / downloading
# an image to / from glance. 0 means no retries.
#  (integer value)
# Minimum value: 0
#num_retries = 0

#
# List of url schemes that can be directly accessed.
#
# This option specifies a list of url schemes that can be downloaded
# directly via the direct_url. This direct_URL can be fetched from
# Image metadata which can be used by nova to get the
# image more efficiently. nova-compute could benefit from this by
# invoking a copy when it has access to the same file system as glance.
#
# Possible values:
#
# * [file], Empty list (default)
#  (list value)
#allowed_direct_url_schemes =

#
# Enable image signature verification.
#
# nova uses the image signature metadata from glance and verifies the signature
# of a signed image while downloading that image. If the image signature cannot
# be verified or if the image signature metadata is either incomplete or
# unavailable, then nova will not boot the image and instead will place the
# instance into an error state. This provides end users with stronger assurances
# of the integrity of the image data they are using to create servers.
#
# Related options:
#
# * The options in the `key_manager` group, as the key_manager is used
#   for the signature validation.
#  (boolean value)
#verify_glance_signatures = false

# Enable or disable debug logging with glanceclient. (boolean value)
#debug = false


[guestfs]
#
# libguestfs is a set of tools for accessing and modifying virtual
# machine (VM) disk images. You can use this for viewing and editing
# files inside guests, scripting changes to VMs, monitoring disk
# used/free statistics, creating guests, P2V, V2V, performing backups,
# cloning VMs, building VMs, formatting disks and resizing disks.

#
# From nova.conf
#

#
# Enable/disables guestfs logging.
#
# This configures guestfs to debug messages and push them to Openstack
# logging system. When set to True, it traces libguestfs API calls and
# enable verbose debug messages. In order to use the above feature,
# "libguestfs" package must be installed.
#
# Related options:
# Since libguestfs access and modifies VM's managed by libvirt, below options
# should be set to give access to those VM's.
#     * libvirt.inject_key
#     * libvirt.inject_partition
#     * libvirt.inject_password
#  (boolean value)
#debug = false


[healthcheck]

#
# From oslo.middleware
#

# DEPRECATED: The path to respond to healtcheck requests on. (string value)
# This option is deprecated for removal.
# Its value may be silently ignored in the future.
#path = /healthcheck

# Show more detailed information as part of the response (boolean value)
#detailed = false

# Additional backends that can perform health checks and report that information
# back as part of a request. (list value)
#backends =

# Check the presence of a file to determine if an application is running on a
# port. Used by DisableByFileHealthcheck plugin. (string value)
#disable_by_file_path = <None>

# Check the presence of a file based on a port to determine if an application is
# running on a port. Expects a "port:path" list of strings. Used by
# DisableByFilesPortsHealthcheck plugin. (list value)
#disable_by_file_paths =


[hyperv]
#
# The hyperv feature allows you to configure the Hyper-V hypervisor
# driver to be used within an OpenStack deployment.

#
# From nova.conf
#

#
# Dynamic memory ratio
#
# Enables dynamic memory allocation (ballooning) when set to a value
# greater than 1. The value expresses the ratio between the total RAM
# assigned to an instance and its startup RAM amount. For example a
# ratio of 2.0 for an instance with 1024MB of RAM implies 512MB of
# RAM allocated at startup.
#
# Possible values:
#
# * 1.0: Disables dynamic memory allocation (Default).
# * Float values greater than 1.0: Enables allocation of total implied
#   RAM divided by this value for startup.
#  (floating point value)
#dynamic_memory_ratio = 1.0

#
# Enable instance metrics collection
#
# Enables metrics collections for an instance by using Hyper-V's
# metric APIs. Collected data can by retrieved by other apps and
# services, e.g.: Ceilometer.
#  (boolean value)
#enable_instance_metrics_collection = false

#
# Instances path share
#
# The name of a Windows share mapped to the "instances_path" dir
# and used by the resize feature to copy files to the target host.
# If left blank, an administrative share (hidden network share) will
# be used, looking for the same "instances_path" used locally.
#
# Possible values:
#
# * "": An administrative share will be used (Default).
# * Name of a Windows share.
#
# Related options:
#
# * "instances_path": The directory which will be used if this option
#   here is left blank.
#  (string value)
#instances_path_share =

#
# Limit CPU features
#
# This flag is needed to support live migration to hosts with
# different CPU features and checked during instance creation
# in order to limit the CPU features used by the instance.
#  (boolean value)
#limit_cpu_features = false

#
# Mounted disk query retry count
#
# The number of times to retry checking for a mounted disk.
# The query runs until the device can be found or the retry
# count is reached.
#
# Possible values:
#
# * Positive integer values. Values greater than 1 is recommended
#   (Default: 10).
#
# Related options:
#
# * Time interval between disk mount retries is declared with
#   "mounted_disk_query_retry_interval" option.
#  (integer value)
# Minimum value: 0
#mounted_disk_query_retry_count = 10

#
# Mounted disk query retry interval
#
# Interval between checks for a mounted disk, in seconds.
#
# Possible values:
#
# * Time in seconds (Default: 5).
#
# Related options:
#
# * This option is meaningful when the mounted_disk_query_retry_count
#   is greater than 1.
# * The retry loop runs with mounted_disk_query_retry_count and
#   mounted_disk_query_retry_interval configuration options.
#  (integer value)
# Minimum value: 0
#mounted_disk_query_retry_interval = 5

#
# Power state check timeframe
#
# The timeframe to be checked for instance power state changes.
# This option is used to fetch the state of the instance from Hyper-V
# through the WMI interface, within the specified timeframe.
#
# Possible values:
#
# * Timeframe in seconds (Default: 60).
#  (integer value)
# Minimum value: 0
#power_state_check_timeframe = 60

#
# Power state event polling interval
#
# Instance power state change event polling frequency. Sets the
# listener interval for power state events to the given value.
# This option enhances the internal lifecycle notifications of
# instances that reboot themselves. It is unlikely that an operator
# has to change this value.
#
# Possible values:
#
# * Time in seconds (Default: 2).
#  (integer value)
# Minimum value: 0
#power_state_event_polling_interval = 2

#
# qemu-img command
#
# qemu-img is required for some of the image related operations
# like converting between different image types. You can get it
# from here: (http://qemu.weilnetz.de/) or you can install the
# Cloudbase OpenStack Hyper-V Compute Driver
# (https://cloudbase.it/openstack-hyperv-driver/) which automatically
# sets the proper path for this config option. You can either give the
# full path of qemu-img.exe or set its path in the PATH environment
# variable and leave this option to the default value.
#
# Possible values:
#
# * Name of the qemu-img executable, in case it is in the same
#   directory as the nova-compute service or its path is in the
#   PATH environment variable (Default).
# * Path of qemu-img command (DRIVELETTER:\PATH\TO\QEMU-IMG\COMMAND).
#
# Related options:
#
# * If the config_drive_cdrom option is False, qemu-img will be used to
#   convert the ISO to a VHD, otherwise the configuration drive will
#   remain an ISO. To use configuration drive with Hyper-V, you must
#   set the mkisofs_cmd value to the full path to an mkisofs.exe
#   installation.
#  (string value)
#qemu_img_cmd = qemu-img.exe

#
# External virtual switch name
#
# The Hyper-V Virtual Switch is a software-based layer-2 Ethernet
# network switch that is available with the installation of the
# Hyper-V server role. The switch includes programmatically managed
# and extensible capabilities to connect virtual machines to both
# virtual networks and the physical network. In addition, Hyper-V
# Virtual Switch provides policy enforcement for security, isolation,
# and service levels. The vSwitch represented by this config option
# must be an external one (not internal or private).
#
# Possible values:
#
# * If not provided, the first of a list of available vswitches
#   is used. This list is queried using WQL.
# * Virtual switch name.
#  (string value)
#vswitch_name = <None>

#
# Wait soft reboot seconds
#
# Number of seconds to wait for instance to shut down after soft
# reboot request is made. We fall back to hard reboot if instance
# does not shutdown within this window.
#
# Possible values:
#
# * Time in seconds (Default: 60).
#  (integer value)
# Minimum value: 0
#wait_soft_reboot_seconds = 60

#
# Configuration drive cdrom
#
# OpenStack can be configured to write instance metadata to
# a configuration drive, which is then attached to the
# instance before it boots. The configuration drive can be
# attached as a disk drive (default) or as a CD drive.
#
# Possible values:
#
# * True: Attach the configuration drive image as a CD drive.
# * False: Attach the configuration drive image as a disk drive (Default).
#
# Related options:
#
# * This option is meaningful with force_config_drive option set to 'True'
#   or when the REST API call to create an instance will have
#   '--config-drive=True' flag.
# * config_drive_format option must be set to 'iso9660' in order to use
#   CD drive as the configuration drive image.
# * To use configuration drive with Hyper-V, you must set the
#   mkisofs_cmd value to the full path to an mkisofs.exe installation.
#   Additionally, you must set the qemu_img_cmd value to the full path
#   to an qemu-img command installation.
# * You can configure the Compute service to always create a configuration
#   drive by setting the force_config_drive option to 'True'.
#  (boolean value)
#config_drive_cdrom = false

#
# Configuration drive inject password
#
# Enables setting the admin password in the configuration drive image.
#
# Related options:
#
# * This option is meaningful when used with other options that enable
#   configuration drive usage with Hyper-V, such as force_config_drive.
# * Currently, the only accepted config_drive_format is 'iso9660'.
#  (boolean value)
#config_drive_inject_password = false

#
# Volume attach retry count
#
# The number of times to retry attaching a volume. Volume attachment
# is retried until success or the given retry count is reached.
#
# Possible values:
#
# * Positive integer values (Default: 10).
#
# Related options:
#
# * Time interval between attachment attempts is declared with
#   volume_attach_retry_interval option.
#  (integer value)
# Minimum value: 0
#volume_attach_retry_count = 10

#
# Volume attach retry interval
#
# Interval between volume attachment attempts, in seconds.
#
# Possible values:
#
# * Time in seconds (Default: 5).
#
# Related options:
#
# * This options is meaningful when volume_attach_retry_count
#   is greater than 1.
# * The retry loop runs with volume_attach_retry_count and
#   volume_attach_retry_interval configuration options.
#  (integer value)
# Minimum value: 0
#volume_attach_retry_interval = 5

#
# Enable RemoteFX feature
#
# This requires at least one DirectX 11 capable graphics adapter for
# Windows / Hyper-V Server 2012 R2 or newer and RDS-Virtualization
# feature has to be enabled.
#
# Instances with RemoteFX can be requested with the following flavor
# extra specs:
#
# **os:resolution**. Guest VM screen resolution size. Acceptable values::
#
#     1024x768, 1280x1024, 1600x1200, 1920x1200, 2560x1600, 3840x2160
#
# ``3840x2160`` is only available on Windows / Hyper-V Server 2016.
#
# **os:monitors**. Guest VM number of monitors. Acceptable values::
#
#     [1, 4] - Windows / Hyper-V Server 2012 R2
#     [1, 8] - Windows / Hyper-V Server 2016
#
# **os:vram**. Guest VM VRAM amount. Only available on
# Windows / Hyper-V Server 2016. Acceptable values::
#
#     64, 128, 256, 512, 1024
#  (boolean value)
#enable_remotefx = false

#
# Use multipath connections when attaching iSCSI or FC disks.
#
# This requires the Multipath IO Windows feature to be enabled. MPIO must be
# configured to claim such devices.
#  (boolean value)
#use_multipath_io = false

#
# List of iSCSI initiators that will be used for estabilishing iSCSI sessions.
#
# If none are specified, the Microsoft iSCSI initiator service will choose the
# initiator.
#  (list value)
#iscsi_initiator_list =


[ironic]
#
# Configuration options for Ironic driver (Bare Metal).
# If using the Ironic driver following options must be set:
# * auth_type
# * auth_url
# * project_name
# * username
# * password
# * project_domain_id or project_domain_name
# * user_domain_id or user_domain_name

#
# From nova.conf
#

# URL override for the Ironic API endpoint. (string value)
#api_endpoint = http://ironic.example.org:6385/

#
# The number of times to retry when a request conflicts.
# If set to 0, only try once, no retries.
#
# Related options:
#
# * api_retry_interval
#  (integer value)
# Minimum value: 0
#api_max_retries = 60

#
# The number of seconds to wait before retrying the request.
#
# Related options:
#
# * api_max_retries
#  (integer value)
# Minimum value: 0
#api_retry_interval = 2

# Timeout (seconds) to wait for node serial console state changed. Set to 0 to
# disable timeout. (integer value)
# Minimum value: 0
#serial_console_state_timeout = 10

# PEM encoded Certificate Authority to use when verifying HTTPs connections.
# (string value)
#cafile = <None>

# PEM encoded client certificate cert file (string value)
#certfile = <None>

# PEM encoded client certificate key file (string value)
#keyfile = <None>

# Verify HTTPS connections. (boolean value)
#insecure = false

# Timeout value for http requests (integer value)
#timeout = <None>

# Authentication type to load (string value)
# Deprecated group/name - [ironic]/auth_plugin
#auth_type = <None>

# Config Section from which to load plugin specific options (string value)
#auth_section = <None>

# Authentication URL (string value)
#auth_url = <None>

# Domain ID to scope to (string value)
#domain_id = <None>

# Domain name to scope to (string value)
#domain_name = <None>

# Project ID to scope to (string value)
#project_id = <None>

# Project name to scope to (string value)
#project_name = <None>

# Domain ID containing project (string value)
#project_domain_id = <None>

# Domain name containing project (string value)
#project_domain_name = <None>

# Trust ID (string value)
#trust_id = <None>

# User ID (string value)
#user_id = <None>

# Username (string value)
# Deprecated group/name - [ironic]/user_name
#username = <None>

# User's domain id (string value)
#user_domain_id = <None>

# User's domain name (string value)
#user_domain_name = <None>

# User's password (string value)
#password = <None>


[key_manager]

#
# From nova.conf
#

#
# Fixed key returned by key manager, specified in hex.
#
# Possible values:
#
# * Empty string or a key in hex value
#  (string value)
#fixed_key = <None>

# The full class name of the key manager API class (string value)
#api_class = castellan.key_manager.barbican_key_manager.BarbicanKeyManager

# The type of authentication credential to create. Possible values are 'token',
# 'password', 'keystone_token', and 'keystone_password'. Required if no context
# is passed to the credential factory. (string value)
#auth_type = <None>

# Token for authentication. Required for 'token' and 'keystone_token' auth_type
# if no context is passed to the credential factory. (string value)
#token = <None>

# Username for authentication. Required for 'password' auth_type. Optional for
# the 'keystone_password' auth_type. (string value)
#username = <None>

# Password for authentication. Required for 'password' and 'keystone_password'
# auth_type. (string value)
#password = <None>

# User ID for authentication. Optional for 'keystone_token' and
# 'keystone_password' auth_type. (string value)
#user_id = <None>

# User's domain ID for authentication. Optional for 'keystone_token' and
# 'keystone_password' auth_type. (string value)
#user_domain_id = <None>

# User's domain name for authentication. Optional for 'keystone_token' and
# 'keystone_password' auth_type. (string value)
#user_domain_name = <None>

# Trust ID for trust scoping. Optional for 'keystone_token' and
# 'keystone_password' auth_type. (string value)
#trust_id = <None>

# Domain ID for domain scoping. Optional for 'keystone_token' and
# 'keystone_password' auth_type. (string value)
#domain_id = <None>

# Domain name for domain scoping. Optional for 'keystone_token' and
# 'keystone_password' auth_type. (string value)
#domain_name = <None>

# Project ID for project scoping. Optional for 'keystone_token' and
# 'keystone_password' auth_type. (string value)
#project_id = <None>

# Project name for project scoping. Optional for 'keystone_token' and
# 'keystone_password' auth_type. (string value)
#project_name = <None>

# Project's domain ID for project. Optional for 'keystone_token' and
# 'keystone_password' auth_type. (string value)
#project_domain_id = <None>

# Project's domain name for project. Optional for 'keystone_token' and
# 'keystone_password' auth_type. (string value)
#project_domain_name = <None>

# Allow fetching a new token if the current one is going to expire. Optional for
# 'keystone_token' and 'keystone_password' auth_type. (boolean value)
#reauthenticate = true


[keystone_authtoken]

#
# From keystonemiddleware.auth_token
#

# Complete "public" Identity API endpoint. This endpoint should not be an
# "admin" endpoint, as it should be accessible by all end users. Unauthenticated
# clients are redirected to this endpoint to authenticate. Although this
# endpoint should  ideally be unversioned, client support in the wild varies.
# If you're using a versioned v2 endpoint here, then this  should *not* be the
# same endpoint the service user utilizes  for validating tokens, because normal
# end users may not be  able to reach that endpoint. (string value)
#auth_uri = <None>

# API version of the admin Identity API endpoint. (string value)
#auth_version = <None>

# Do not handle authorization requests within the middleware, but delegate the
# authorization decision to downstream WSGI components. (boolean value)
#delay_auth_decision = false

# Request timeout value for communicating with Identity API server. (integer
# value)
#http_connect_timeout = <None>

# How many times are we trying to reconnect when communicating with Identity API
# Server. (integer value)
#http_request_max_retries = 3

# Request environment key where the Swift cache object is stored. When
# auth_token middleware is deployed with a Swift cache, use this option to have
# the middleware share a caching backend with swift. Otherwise, use the
# ``memcached_servers`` option instead. (string value)
#cache = <None>

# Required if identity server requires client certificate (string value)
#certfile = <None>

# Required if identity server requires client certificate (string value)
#keyfile = <None>

# A PEM encoded Certificate Authority to use when verifying HTTPs connections.
# Defaults to system CAs. (string value)
#cafile = <None>

# Verify HTTPS connections. (boolean value)
#insecure = false

# The region in which the identity server can be found. (string value)
#region_name = <None>

# DEPRECATED: Directory used to cache files related to PKI tokens. This option
# has been deprecated in the Ocata release and will be removed in the P release.
# (string value)
# This option is deprecated for removal since Ocata.
# Its value may be silently ignored in the future.
# Reason: PKI token format is no longer supported.
#signing_dir = <None>

# Optionally specify a list of memcached server(s) to use for caching. If left
# undefined, tokens will instead be cached in-process. (list value)
# Deprecated group/name - [keystone_authtoken]/memcache_servers
#memcached_servers = <None>

# In order to prevent excessive effort spent validating tokens, the middleware
# caches previously-seen tokens for a configurable duration (in seconds). Set to
# -1 to disable caching completely. (integer value)
#token_cache_time = 300

# DEPRECATED: Determines the frequency at which the list of revoked tokens is
# retrieved from the Identity service (in seconds). A high number of revocation
# events combined with a low cache duration may significantly reduce
# performance. Only valid for PKI tokens. This option has been deprecated in the
# Ocata release and will be removed in the P release. (integer value)
# This option is deprecated for removal since Ocata.
# Its value may be silently ignored in the future.
# Reason: PKI token format is no longer supported.
#revocation_cache_time = 10

# (Optional) If defined, indicate whether token data should be authenticated or
# authenticated and encrypted. If MAC, token data is authenticated (with HMAC)
# in the cache. If ENCRYPT, token data is encrypted and authenticated in the
# cache. If the value is not one of these options or empty, auth_token will
# raise an exception on initialization. (string value)
# Allowed values: None, MAC, ENCRYPT
#memcache_security_strategy = None

# (Optional, mandatory if memcache_security_strategy is defined) This string is
# used for key derivation. (string value)
#memcache_secret_key = <None>

# (Optional) Number of seconds memcached server is considered dead before it is
# tried again. (integer value)
#memcache_pool_dead_retry = 300

# (Optional) Maximum total number of open connections to every memcached server.
# (integer value)
#memcache_pool_maxsize = 10

# (Optional) Socket timeout in seconds for communicating with a memcached
# server. (integer value)
#memcache_pool_socket_timeout = 3

# (Optional) Number of seconds a connection to memcached is held unused in the
# pool before it is closed. (integer value)
#memcache_pool_unused_timeout = 60

# (Optional) Number of seconds that an operation will wait to get a memcached
# client connection from the pool. (integer value)
#memcache_pool_conn_get_timeout = 10

# (Optional) Use the advanced (eventlet safe) memcached client pool. The
# advanced pool will only work under python 2.x. (boolean value)
#memcache_use_advanced_pool = false

# (Optional) Indicate whether to set the X-Service-Catalog header. If False,
# middleware will not ask for service catalog on token validation and will not
# set the X-Service-Catalog header. (boolean value)
#include_service_catalog = true

# Used to control the use and type of token binding. Can be set to: "disabled"
# to not check token binding. "permissive" (default) to validate binding
# information if the bind type is of a form known to the server and ignore it if
# not. "strict" like "permissive" but if the bind type is unknown the token will
# be rejected. "required" any form of token binding is needed to be allowed.
# Finally the name of a binding method that must be present in tokens. (string
# value)
#enforce_token_bind = permissive

# DEPRECATED: If true, the revocation list will be checked for cached tokens.
# This requires that PKI tokens are configured on the identity server. (boolean
# value)
# This option is deprecated for removal since Ocata.
# Its value may be silently ignored in the future.
# Reason: PKI token format is no longer supported.
#check_revocations_for_cached = false

# DEPRECATED: Hash algorithms to use for hashing PKI tokens. This may be a
# single algorithm or multiple. The algorithms are those supported by Python
# standard hashlib.new(). The hashes will be tried in the order given, so put
# the preferred one first for performance. The result of the first hash will be
# stored in the cache. This will typically be set to multiple values only while
# migrating from a less secure algorithm to a more secure one. Once all the old
# tokens are expired this option should be set to a single value for better
# performance. (list value)
# This option is deprecated for removal since Ocata.
# Its value may be silently ignored in the future.
# Reason: PKI token format is no longer supported.
#hash_algorithms = md5

# A choice of roles that must be present in a service token. Service tokens are
# allowed to request that an expired token can be used and so this check should
# tightly control that only actual services should be sending this token. Roles
# here are applied as an ANY check so any role in this list must be present. For
# backwards compatibility reasons this currently only affects the allow_expired
# check. (list value)
#service_token_roles = service

# For backwards compatibility reasons we must let valid service tokens pass that
# don't pass the service_token_roles check as valid. Setting this true will
# become the default in a future release and should be enabled if possible.
# (boolean value)
#service_token_roles_required = false

# Authentication type to load (string value)
# Deprecated group/name - [keystone_authtoken]/auth_plugin
#auth_type = <None>

# Config Section from which to load plugin specific options (string value)
#auth_section = <None>


[libvirt]
#
# Libvirt options allows cloud administrator to configure related
# libvirt hypervisor driver to be used within an OpenStack deployment.
#
# Almost all of the libvirt config options are influence by ``virt_type`` config
# which describes the virtualization type (or so called domain type) libvirt
# should use for specific features such as live migration, snapshot.

#
# From nova.conf
#

#
# The ID of the image to boot from to rescue data from a corrupted instance.
#
# If the rescue REST API operation doesn't provide an ID of an image to
# use, the image which is referenced by this ID is used. If this
# option is not set, the image from the instance is used.
#
# Possible values:
#
# * An ID of an image or nothing. If it points to an *Amazon Machine
#   Image* (AMI), consider to set the config options ``rescue_kernel_id``
#   and ``rescue_ramdisk_id`` too. If nothing is set, the image of the instance
#   is used.
#
# Related options:
#
# * ``rescue_kernel_id``: If the chosen rescue image allows the separate
#   definition of its kernel disk, the value of this option is used,
#   if specified. This is the case when *Amazon*'s AMI/AKI/ARI image
#   format is used for the rescue image.
# * ``rescue_ramdisk_id``: If the chosen rescue image allows the separate
#   definition of its RAM disk, the value of this option is used if,
#   specified. This is the case when *Amazon*'s AMI/AKI/ARI image
#   format is used for the rescue image.
#  (string value)
#rescue_image_id = <None>

#
# The ID of the kernel (AKI) image to use with the rescue image.
#
# If the chosen rescue image allows the separate definition of its kernel
# disk, the value of this option is used, if specified. This is the case
# when *Amazon*'s AMI/AKI/ARI image format is used for the rescue image.
#
# Possible values:
#
# * An ID of an kernel image or nothing. If nothing is specified, the kernel
#   disk from the instance is used if it was launched with one.
#
# Related options:
#
# * ``rescue_image_id``: If that option points to an image in *Amazon*'s
#   AMI/AKI/ARI image format, it's useful to use ``rescue_kernel_id`` too.
#  (string value)
#rescue_kernel_id = <None>

#
# The ID of the RAM disk (ARI) image to use with the rescue image.
#
# If the chosen rescue image allows the separate definition of its RAM
# disk, the value of this option is used, if specified. This is the case
# when *Amazon*'s AMI/AKI/ARI image format is used for the rescue image.
#
# Possible values:
#
# * An ID of a RAM disk image or nothing. If nothing is specified, the RAM
#   disk from the instance is used if it was launched with one.
#
# Related options:
#
# * ``rescue_image_id``: If that option points to an image in *Amazon*'s
#   AMI/AKI/ARI image format, it's useful to use ``rescue_ramdisk_id`` too.
#  (string value)
#rescue_ramdisk_id = <None>

#
# Describes the virtualization type (or so called domain type) libvirt should
# use.
#
# The choice of this type must match the underlying virtualization strategy
# you have chosen for this host.
#
# Possible values:
#
# * See the predefined set of case-sensitive values.
#
# Related options:
#
# * ``connection_uri``: depends on this
# * ``disk_prefix``: depends on this
# * ``cpu_mode``: depends on this
# * ``cpu_model``: depends on this
#  (string value)
# Allowed values: kvm, lxc, qemu, uml, xen, parallels
#virt_type = kvm

#
# Overrides the default libvirt URI of the chosen virtualization type.
#
# If set, Nova will use this URI to connect to libvirt.
#
# Possible values:
#
# * An URI like ``qemu:///system`` or ``xen+ssh://oirase/`` for example.
#   This is only necessary if the URI differs to the commonly known URIs
#   for the chosen virtualization type.
#
# Related options:
#
# * ``virt_type``: Influences what is used as default value here.
#  (string value)
#connection_uri =

#
# Allow the injection of an admin password for instance only at ``create`` and
# ``rebuild`` process.
#
# There is no agent needed within the image to do this. If *libguestfs* is
# available on the host, it will be used. Otherwise *nbd* is used. The file
# system of the image will be mounted and the admin password, which is provided
# in the REST API call will be injected as password for the root user. If no
# root user is available, the instance won't be launched and an error is thrown.
# Be aware that the injection is *not* possible when the instance gets launched
# from a volume.
#
# Possible values:
#
# * True: Allows the injection.
# * False (default): Disallows the injection. Any via the REST API provided
# admin password will be silently ignored.
#
# Related options:
#
# * ``inject_partition``: That option will decide about the discovery and usage
#   of the file system. It also can disable the injection at all.
#  (boolean value)
#inject_password = false

#
# Allow the injection of an SSH key at boot time.
#
# There is no agent needed within the image to do this. If *libguestfs* is
# available on the host, it will be used. Otherwise *nbd* is used. The file
# system of the image will be mounted and the SSH key, which is provided
# in the REST API call will be injected as SSH key for the root user and
# appended to the ``authorized_keys`` of that user. The SELinux context will
# be set if necessary. Be aware that the injection is *not* possible when the
# instance gets launched from a volume.
#
# This config option will enable directly modifying the instance disk and does
# not affect what cloud-init may do using data from config_drive option or the
# metadata service.
#
# Related options:
#
# * ``inject_partition``: That option will decide about the discovery and usage
#   of the file system. It also can disable the injection at all.
#  (boolean value)
#inject_key = false

#
# Determines the way how the file system is chosen to inject data into it.
#
# *libguestfs* will be used a first solution to inject data. If that's not
# available on the host, the image will be locally mounted on the host as a
# fallback solution. If libguestfs is not able to determine the root partition
# (because there are more or less than one root partition) or cannot mount the
# file system it will result in an error and the instance won't be boot.
#
# Possible values:
#
# * -2 => disable the injection of data.
# * -1 => find the root partition with the file system to mount with libguestfs
# *  0 => The image is not partitioned
# * >0 => The number of the partition to use for the injection
#
# Related options:
#
# * ``inject_key``: If this option allows the injection of a SSH key it depends
#   on value greater or equal to -1 for ``inject_partition``.
# * ``inject_password``: If this option allows the injection of an admin
# password
#   it depends on value greater or equal to -1 for ``inject_partition``.
# * ``guestfs`` You can enable the debug log level of libguestfs with this
#   config option. A more verbose output will help in debugging issues.
# * ``virt_type``: If you use ``lxc`` as virt_type it will be treated as a
#   single partition image
#  (integer value)
# Minimum value: -2
#inject_partition = -2

# DEPRECATED:
# Enable a mouse cursor within a graphical VNC or SPICE sessions.
#
# This will only be taken into account if the VM is fully virtualized and VNC
# and/or SPICE is enabled. If the node doesn't support a graphical framebuffer,
# then it is valid to set this to False.
#
# Related options:
# * ``[vnc]enabled``: If VNC is enabled, ``use_usb_tablet`` will have an effect.
# * ``[spice]enabled`` + ``[spice].agent_enabled``: If SPICE is enabled and the
#   spice agent is disabled, the config value of ``use_usb_tablet`` will have
#   an effect.
#  (boolean value)
# This option is deprecated for removal since 14.0.0.
# Its value may be silently ignored in the future.
# Reason: This option is being replaced by the 'pointer_model' option.
#use_usb_tablet = true

#
# The IP address or hostname to be used as the target for live migration
# traffic.
#
# If this option is set to None, the hostname of the migration target compute
# node will be used.
#
# This option is useful in environments where the live-migration traffic can
# impact the network plane significantly. A separate network for live-migration
# traffic can then use this config option and avoids the impact on the
# management network.
#
# Possible values:
#
# * A valid IP address or hostname, else None.
#  (string value)
#live_migration_inbound_addr = <None>

# DEPRECATED:
# Live migration target URI to use.
#
# Override the default libvirt live migration target URI (which is dependent
# on virt_type). Any included "%s" is replaced with the migration target
# hostname.
#
# If this option is set to None (which is the default), Nova will automatically
# generate the `live_migration_uri` value based on only 3 supported `virt_type`
# in following list:
# * 'kvm': 'qemu+tcp://%s/system'
# * 'qemu': 'qemu+tcp://%s/system'
# * 'xen': 'xenmigr://%s/system'
#
# Related options:
# * ``live_migration_inbound_addr``: If ``live_migration_inbound_addr`` value
#   is not None, the ip/hostname address of target compute node is used instead
#   of ``live_migration_uri`` as the uri for live migration.
# * ``live_migration_scheme``: If ``live_migration_uri`` is not set, the scheme
#   used for live migration is taken from ``live_migration_scheme`` instead.
#  (string value)
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# live_migration_uri is deprecated for removal in favor of two other options
# that
# allow to change live migration scheme and target URI:
# ``live_migration_scheme``
# and ``live_migration_inbound_addr`` respectively.
#live_migration_uri = <None>

#
# Schema used for live migration.
#
# Override the default libvirt live migration scheme (which is dependent on
# virt_type). If this option is set to None, nova will automatically choose a
# sensible default based on the hypervisor. It is not recommended that you
# change
# this unless you are very sure that hypervisor supports a particular scheme.
#
# Related options:
# * ``virt_type``: This option is meaningful only when ``virt_type`` is set to
#   `kvm` or `qemu`.
# * ``live_migration_uri``: If ``live_migration_uri`` value is not None, the
#   scheme used for live migration is taken from ``live_migration_uri`` instead.
#  (string value)
#live_migration_scheme = <None>

#
# Enable tunnelled migration.
#
# This option enables the tunnelled migration feature, where migration data is
# transported over the libvirtd connection. If enabled, we use the
# VIR_MIGRATE_TUNNELLED migration flag, avoiding the need to configure
# the network to allow direct hypervisor to hypervisor communication.
# If False, use the native transport. If not set, Nova will choose a
# sensible default based on, for example the availability of native
# encryption support in the hypervisor. Enable this option will definitely
# impact performance massively.
#
# Note that this option is NOT compatible with use of block migration.
#
# Possible values:
#
# * Supersedes and (if set) overrides the deprecated 'live_migration_flag' and
#   'block_migration_flag' to enable tunneled migration.
#  (boolean value)
#live_migration_tunnelled = false

#
# Maximum bandwidth(in MiB/s) to be used during migration.
#
# If set to 0, the hypervisor will choose a suitable default. Some hypervisors
# do not support this feature and will return an error if bandwidth is not 0.
# Please refer to the libvirt documentation for further details.
#  (integer value)
#live_migration_bandwidth = 0

#
# Maximum permitted downtime, in milliseconds, for live migration
# switchover.
#
# Will be rounded up to a minimum of 100ms. You can increase this value
# if you want to allow live-migrations to complete faster, or avoid
# live-migration timeout errors by allowing the guest to be paused for
# longer during the live-migration switch over.
#
# Related options:
#
# * live_migration_completion_timeout
#  (integer value)
# Minimum value: 100
#live_migration_downtime = 500

#
# Number of incremental steps to reach max downtime value.
#
# Will be rounded up to a minimum of 3 steps.
#  (integer value)
# Minimum value: 3
#live_migration_downtime_steps = 10

#
# Time to wait, in seconds, between each step increase of the migration
# downtime.
#
# Minimum delay is 3 seconds. Value is per GiB of guest RAM + disk to be
# transferred, with lower bound of a minimum of 2 GiB per device.
#  (integer value)
# Minimum value: 3
#live_migration_downtime_delay = 75

#
# Time to wait, in seconds, for migration to successfully complete transferring
# data before aborting the operation.
#
# Value is per GiB of guest RAM + disk to be transferred, with lower bound of
# a minimum of 2 GiB. Should usually be larger than downtime delay * downtime
# steps. Set to 0 to disable timeouts.
#
# Related options:
#
# * live_migration_downtime
# * live_migration_downtime_steps
# * live_migration_downtime_delay
#  (integer value)
# Note: This option can be changed without restarting.
#live_migration_completion_timeout = 800

# DEPRECATED:
# Time to wait, in seconds, for migration to make forward progress in
# transferring data before aborting the operation.
#
# Set to 0 to disable timeouts.
#
# This is deprecated, and now disabled by default because we have found serious
# bugs in this feature that caused false live-migration timeout failures. This
# feature will be removed or replaced in a future release.
#  (integer value)
# Note: This option can be changed without restarting.
# This option is deprecated for removal.
# Its value may be silently ignored in the future.
# Reason: Serious bugs found in this feature.
#live_migration_progress_timeout = 0

#
# This option allows nova to switch an on-going live migration to post-copy
# mode, i.e., switch the active VM to the one on the destination node before the
# migration is complete, therefore ensuring an upper bound on the memory that
# needs to be transferred. Post-copy requires libvirt>=1.3.3 and QEMU>=2.5.0.
#
# When permitted, post-copy mode will be automatically activated if a
# live-migration memory copy iteration does not make percentage increase of at
# least 10% over the last iteration.
#
# The live-migration force complete API also uses post-copy when permitted. If
# post-copy mode is not available, force complete falls back to pausing the VM
# to ensure the live-migration operation will complete.
#
# When using post-copy mode, if the source and destination hosts loose network
# connectivity, the VM being live-migrated will need to be rebooted. For more
# details, please see the Administration guide.
#
# Related options:
#
#     * live_migration_permit_auto_converge
#  (boolean value)
#live_migration_permit_post_copy = false

#
# This option allows nova to start live migration with auto converge on.
#
# Auto converge throttles down CPU if a progress of on-going live migration
# is slow. Auto converge will only be used if this flag is set to True and
# post copy is not permitted or post copy is unavailable due to the version
# of libvirt and QEMU in use.
#
# Related options:
#
#     * live_migration_permit_post_copy
#  (boolean value)
#live_migration_permit_auto_converge = false

#
# Determine the snapshot image format when sending to the image service.
#
# If set, this decides what format is used when sending the snapshot to the
# image service.
# If not set, defaults to same type as source image.
#
# Possible values:
#
# * ``raw``: RAW disk format
# * ``qcow2``: KVM default disk format
# * ``vmdk``: VMWare default disk format
# * ``vdi``: VirtualBox default disk format
# * If not set, defaults to same type as source image.
#  (string value)
# Allowed values: raw, qcow2, vmdk, vdi
#snapshot_image_format = <None>

#
# Override the default disk prefix for the devices attached to an instance.
#
# If set, this is used to identify a free disk device name for a bus.
#
# Possible values:
#
# * Any prefix which will result in a valid disk device name like 'sda' or 'hda'
#   for example. This is only necessary if the device names differ to the
#   commonly known device name prefixes for a virtualization type such as: sd,
#   xvd, uvd, vd.
#
# Related options:
#
# * ``virt_type``: Influences which device type is used, which determines
#   the default disk prefix.
#  (string value)
#disk_prefix = <None>

# Number of seconds to wait for instance to shut down after soft reboot request
# is made. We fall back to hard reboot if instance does not shutdown within this
# window. (integer value)
#wait_soft_reboot_seconds = 120

#
# Is used to set the CPU mode an instance should have.
#
# If virt_type="kvm|qemu", it will default to "host-model", otherwise it will
# default to "none".
#
# Possible values:
#
# * ``host-model``: Clones the host CPU feature flags.
# * ``host-passthrough``: Use the host CPU model exactly;
# * ``custom``: Use a named CPU model;
# * ``none``: Not set any CPU model.
#
# Related options:
#
# * ``cpu_model``: If ``custom`` is used for ``cpu_mode``, set this config
#   option too, otherwise this would result in an error and the instance won't
#   be launched.
#  (string value)
# Allowed values: host-model, host-passthrough, custom, none
#cpu_mode = <None>

#
# Set the name of the libvirt CPU model the instance should use.
#
# Possible values:
#
# * The names listed in /usr/share/libvirt/cpu_map.xml
#
# Related options:
#
# * ``cpu_mode``: Don't set this when ``cpu_mode`` is NOT set to ``custom``.
#   This would result in an error and the instance won't be launched.
# * ``virt_type``: Only the virtualization types ``kvm`` and ``qemu`` use this.
#  (string value)
#cpu_model = <None>

# Location where libvirt driver will store snapshots before uploading them to
# image service (string value)
#snapshots_directory = $instances_path/snapshots

# Location where the Xen hvmloader is kept (string value)
#xen_hvmloader_path = /usr/lib/xen/boot/hvmloader

#
# Specific cache modes to use for different disk types.
#
# For example: file=directsync,block=none,network=writeback
#
# For local or direct-attached storage, it is recommended that you use
# writethrough (default) mode, as it ensures data integrity and has acceptable
# I/O performance for applications running in the guest, especially for read
# operations. However, caching mode none is recommended for remote NFS storage,
# because direct I/O operations (O_DIRECT) perform better than synchronous I/O
# operations (with O_SYNC). Caching mode none effectively turns all guest I/O
# operations into direct I/O operations on the host, which is the NFS client in
# this environment.
#
# Possible cache modes:
#
# * default: Same as writethrough.
# * none: With caching mode set to none, the host page cache is disabled, but
#   the disk write cache is enabled for the guest. In this mode, the write
#   performance in the guest is optimal because write operations bypass the host
#   page cache and go directly to the disk write cache. If the disk write cache
#   is battery-backed, or if the applications or storage stack in the guest
#   transfer data properly (either through fsync operations or file system
#   barriers), then data integrity can be ensured. However, because the host
#   page cache is disabled, the read performance in the guest would not be as
#   good as in the modes where the host page cache is enabled, such as
#   writethrough mode.
# * writethrough: writethrough mode is the default caching mode. With
#   caching set to writethrough mode, the host page cache is enabled, but the
#   disk write cache is disabled for the guest. Consequently, this caching mode
#   ensures data integrity even if the applications and storage stack in the
#   guest do not transfer data to permanent storage properly (either through
#   fsync operations or file system barriers). Because the host page cache is
#   enabled in this mode, the read performance for applications running in the
#   guest is generally better. However, the write performance might be reduced
#   because the disk write cache is disabled.
# * writeback: With caching set to writeback mode, both the host page cache
#   and the disk write cache are enabled for the guest. Because of this, the
#   I/O performance for applications running in the guest is good, but the data
#   is not protected in a power failure. As a result, this caching mode is
#   recommended only for temporary data where potential data loss is not a
#   concern.
# * directsync: Like "writethrough", but it bypasses the host page cache.
# * unsafe: Caching mode of unsafe ignores cache transfer operations
#   completely. As its name implies, this caching mode should be used only for
#   temporary data where data loss is not a concern. This mode can be useful for
#   speeding up guest installations, but you should switch to another caching
#   mode in production environments.
#  (list value)
#disk_cachemodes =

# A path to a device that will be used as source of entropy on the host.
# Permitted options are: /dev/random or /dev/hwrng (string value)
#rng_dev_path = <None>

# For qemu or KVM guests, set this option to specify a default machine type per
# host architecture. You can find a list of supported machine types in your
# environment by checking the output of the "virsh capabilities"command. The
# format of the value for this config option is host-arch=machine-type. For
# example: x86_64=machinetype1,armv7l=machinetype2 (list value)
#hw_machine_type = <None>

# The data source used to the populate the host "serial" UUID exposed to guest
# in the virtual BIOS. (string value)
# Allowed values: none, os, hardware, auto
#sysinfo_serial = auto

# A number of seconds to memory usage statistics period. Zero or negative value
# mean to disable memory usage statistics. (integer value)
#mem_stats_period_seconds = 10

# List of uid targets and ranges.Syntax is guest-uid:host-uid:countMaximum of 5
# allowed. (list value)
#uid_maps =

# List of guid targets and ranges.Syntax is guest-gid:host-gid:countMaximum of 5
# allowed. (list value)
#gid_maps =

# In a realtime host context vCPUs for guest will run in that scheduling
# priority. Priority depends on the host kernel (usually 1-99) (integer value)
#realtime_scheduler_priority = 1

#
# This is a performance event list which could be used as monitor. These events
# will be passed to libvirt domain xml while creating a new instances.
# Then event statistics data can be collected from libvirt.  The minimum
# libvirt version is 2.0.0. For more information about `Performance monitoring
# events`, refer https://libvirt.org/formatdomain.html#elementsPerf .
#
# Possible values:
# * A string list. For example: ``enabled_perf_events = cmt, mbml, mbmt``
#   The supported events list can be found in
#   https://libvirt.org/html/libvirt-libvirt-domain.html ,
#   which you may need to search key words ``VIR_PERF_PARAM_*``
#  (list value)
#enabled_perf_events =

#
# VM Images format.
#
# If default is specified, then use_cow_images flag is used instead of this
# one.
#
# Related options:
#
# * virt.use_cow_images
# * images_volume_group
#  (string value)
# Allowed values: raw, flat, qcow2, lvm, rbd, ploop, default
#images_type = default

#
# LVM Volume Group that is used for VM images, when you specify images_type=lvm
#
# Related options:
#
# * images_type
#  (string value)
#images_volume_group = <None>

#
# Create sparse logical volumes (with virtualsize) if this flag is set to True.
#  (boolean value)
#sparse_logical_volumes = false

# The RADOS pool in which rbd volumes are stored (string value)
#images_rbd_pool = rbd

# Path to the ceph configuration file to use (string value)
#images_rbd_ceph_conf =

#
# Discard option for nova managed disks.
#
# Requires:
#
# * Libvirt >= 1.0.6
# * Qemu >= 1.5 (raw format)
# * Qemu >= 1.6 (qcow2 format)
#  (string value)
# Allowed values: ignore, unmap
#hw_disk_discard = <None>

# DEPRECATED: Allows image information files to be stored in non-standard
# locations (string value)
# This option is deprecated for removal since 14.0.0.
# Its value may be silently ignored in the future.
# Reason: Image info files are no longer used by the image cache
#image_info_filename_pattern = $instances_path/$image_cache_subdirectory_name/%(image)s.info

# Unused resized base images younger than this will not be removed (integer
# value)
#remove_unused_resized_minimum_age_seconds = 3600

# DEPRECATED: Write a checksum for files in _base to disk (boolean value)
# This option is deprecated for removal since 14.0.0.
# Its value may be silently ignored in the future.
# Reason: The image cache no longer periodically calculates checksums of stored
# images. Data integrity can be checked at the block or filesystem level.
#checksum_base_images = false

# DEPRECATED: How frequently to checksum base images (integer value)
# This option is deprecated for removal since 14.0.0.
# Its value may be silently ignored in the future.
# Reason: The image cache no longer periodically calculates checksums of stored
# images. Data integrity can be checked at the block or filesystem level.
#checksum_interval_seconds = 3600

#
# Method used to wipe ephemeral disks when they are deleted. Only takes effect
# if LVM is set as backing storage.
#
# Possible values:
#
# * none - do not wipe deleted volumes
# * zero - overwrite volumes with zeroes
# * shred - overwrite volume repeatedly
#
# Related options:
#
# * images_type - must be set to ``lvm``
# * volume_clear_size
#  (string value)
# Allowed values: none, zero, shred
#volume_clear = zero

#
# Size of area in MiB, counting from the beginning of the allocated volume,
# that will be cleared using method set in ``volume_clear`` option.
#
# Possible values:
#
# * 0 - clear whole volume
# * >0 - clear specified amount of MiB
#
# Related options:
#
# * images_type - must be set to ``lvm``
# * volume_clear - must be set and the value must be different than ``none``
#   for this option to have any impact
#  (integer value)
# Minimum value: 0
#volume_clear_size = 0

#
# Enable snapshot compression for ``qcow2`` images.
#
# Note: you can set ``snapshot_image_format`` to ``qcow2`` to force all
# snapshots to be in ``qcow2`` format, independently from their original image
# type.
#
# Related options:
#
# * snapshot_image_format
#  (boolean value)
#snapshot_compression = false

# Use virtio for bridge interfaces with KVM/QEMU (boolean value)
#use_virtio_for_bridges = true

#
# Protocols listed here will be accessed directly from QEMU.
#
# If gluster is present in qemu_allowed_storage_drivers, glusterfs's backend
# will
# pass a disk configuration to QEMU. This allows QEMU to access the volume using
# libgfapi rather than mounting GlusterFS via fuse.
#
# Possible values:
#
# * [gluster]
#  (list value)
#qemu_allowed_storage_drivers =

#
# Use multipath connection of the iSCSI or FC volume
#
# Volumes can be connected in the LibVirt as multipath devices. This will
# provide high availability and fault tolerance.
#  (boolean value)
# Deprecated group/name - [libvirt]/iscsi_use_multipath
#volume_use_multipath = false

#
# Number of times to scan given storage protocol to find volume.
#  (integer value)
# Deprecated group/name - [libvirt]/num_iscsi_scan_tries
#num_volume_scan_tries = 5

#
# Number of times to rediscover AoE target to find volume.
#
# Nova provides support for block storage attaching to hosts via AOE (ATA over
# Ethernet). This option allows the user to specify the maximum number of retry
# attempts that can be made to discover the AoE device.
#  (integer value)
#num_aoe_discover_tries = 3

#
# Absolute path to the directory where the glusterfs volume is mounted on the
# compute node.
#  (string value)
#glusterfs_mount_point_base = $state_path/mnt

#
# The iSCSI transport iface to use to connect to target in case offload support
# is desired.
#
# Default format is of the form <transport_name>.<hwaddress> where
# <transport_name> is one of (be2iscsi, bnx2i, cxgb3i, cxgb4i, qla4xxx, ocs) and
# <hwaddress> is the MAC address of the interface and can be generated via the
# iscsiadm -m iface command. Do not confuse the iscsi_iface parameter to be
# provided here with the actual transport name.
#  (string value)
# Deprecated group/name - [libvirt]/iscsi_transport
#iscsi_iface = <None>

#
# Number of times to scan iSER target to find volume.
#
# iSER is a server network protocol that extends iSCSI protocol to use Remote
# Direct Memory Access (RDMA). This option allows the user to specify the
# maximum
# number of scan attempts that can be made to find iSER volume.
#  (integer value)
#num_iser_scan_tries = 5

#
# Use multipath connection of the iSER volume.
#
# iSER volumes can be connected as multipath devices. This will provide high
# availability and fault tolerance.
#  (boolean value)
#iser_use_multipath = false

#
# The RADOS client name for accessing rbd(RADOS Block Devices) volumes.
#
# Libvirt will refer to this user when connecting and authenticating with
# the Ceph RBD server.
#  (string value)
#rbd_user = <None>

#
# The libvirt UUID of the secret for the rbd_user volumes.
#  (string value)
#rbd_secret_uuid = <None>

#
# Directory where the NFS volume is mounted on the compute node.
# The default is 'mnt' directory of the location where nova's Python module
# is installed.
#
# NFS provides shared storage for the OpenStack Block Storage service.
#
# Possible values:
#
# * A string representing absolute path of mount point.
#  (string value)
#nfs_mount_point_base = $state_path/mnt

#
# Mount options passed to the NFS client. See section of the nfs man page
# for details.
#
# Mount options controls the way the filesystem is mounted and how the
# NFS client behaves when accessing files on this mount point.
#
# Possible values:
#
# * Any string representing mount options separated by commas.
# * Example string: vers=3,lookupcache=pos
#  (string value)
#nfs_mount_options = <None>

#
# Directory where the Quobyte volume is mounted on the compute node.
#
# Nova supports Quobyte volume driver that enables storing Block Storage
# service volumes on a Quobyte storage back end. This Option sepcifies the
# path of the directory where Quobyte volume is mounted.
#
# Possible values:
#
# * A string representing absolute path of mount point.
#  (string value)
#quobyte_mount_point_base = $state_path/mnt

# Path to a Quobyte Client configuration file. (string value)
#quobyte_client_cfg = <None>

#
# Path or URL to Scality SOFS(Scale-Out File Server) configuration file.
#
# The Scality SOFS provides OpenStack users the option of storing their
# data on a high capacity, replicated, highly available Scality Ring object
# storage cluster.
#  (string value)
#scality_sofs_config = <None>

#
# Base dir where Scality SOFS shall be mounted.
#
# The Scality volume driver in Nova mounts SOFS and lets the hypervisor access
# the volumes.
#
# Possible values:
#
# * $state_path/scality where state_path is a config option that specifies
#   the top-level directory for maintaining nova's state or Any string
#   containing the full directory path.
#  (string value)
#scality_sofs_mount_point = $state_path/scality

#
# Directory where the SMBFS shares are mounted on the compute node.
#  (string value)
#smbfs_mount_point_base = $state_path/mnt

#
# Mount options passed to the SMBFS client.
#
# Provide SMBFS options as a single string containing all parameters.
# See mount.cifs man page for  details. Note that the libvirt-qemu ``uid``
# and ``gid`` must be specified.
#  (string value)
#smbfs_mount_options =

#
# libvirt's transport method for remote file operations.
#
# Because libvirt cannot use RPC to copy files over network to/from other
# compute nodes, other method must be used for:
#
# * creating directory on remote host
# * creating file on remote host
# * removing file from remote host
# * copying file to remote host
#  (string value)
# Allowed values: ssh, rsync
#remote_filesystem_transport = ssh

#
# Directory where the Virtuozzo Storage clusters are mounted on the compute
# node.
#
# This option defines non-standard mountpoint for Vzstorage cluster.
#
# Related options:
#
# * vzstorage_mount_* group of parameters
#  (string value)
#vzstorage_mount_point_base = $state_path/mnt

#
# Mount owner user name.
#
# This option defines the owner user of Vzstorage cluster mountpoint.
#
# Related options:
#
# * vzstorage_mount_* group of parameters
#  (string value)
#vzstorage_mount_user = stack

#
# Mount owner group name.
#
# This option defines the owner group of Vzstorage cluster mountpoint.
#
# Related options:
#
# * vzstorage_mount_* group of parameters
#  (string value)
#vzstorage_mount_group = qemu

#
# Mount access mode.
#
# This option defines the access bits of Vzstorage cluster mountpoint,
# in the format similar to one of chmod(1) utility, like this: 0770.
# It consists of one to four digits ranging from 0 to 7, with missing
# lead digits assumed to be 0's.
#
# Related options:
#
# * vzstorage_mount_* group of parameters
#  (string value)
#vzstorage_mount_perms = 0770

#
# Path to vzstorage client log.
#
# This option defines the log of cluster operations,
# it should include "%(cluster_name)s" template to separate
# logs from multiple shares.
#
# Related options:
#
# * vzstorage_mount_opts may include more detailed logging options.
#  (string value)
#vzstorage_log_path = /var/log/pstorage/%(cluster_name)s/nova.log.gz

#
# Path to the SSD cache file.
#
# You can attach an SSD drive to a client and configure the drive to store
# a local cache of frequently accessed data. By having a local cache on a
# client's SSD drive, you can increase the overall cluster performance by
# up to 10 and more times.
# WARNING! There is a lot of SSD models which are not server grade and
# may loose arbitrary set of data changes on power loss.
# Such SSDs should not be used in Vstorage and are dangerous as may lead
# to data corruptions and inconsistencies. Please consult with the manual
# on which SSD models are known to be safe or verify it using
# vstorage-hwflush-check(1) utility.
#
# This option defines the path which should include "%(cluster_name)s"
# template to separate caches from multiple shares.
#
# Related options:
#
# * vzstorage_mount_opts may include more detailed cache options.
#  (string value)
#vzstorage_cache_path = <None>

#
# Extra mount options for pstorage-mount
#
# For full description of them, see
# https://static.openvz.org/vz-man/man1/pstorage-mount.1.gz.html
# Format is a python string representation of arguments list, like:
# "['-v', '-R', '500']"
# Shouldn't include -c, -l, -C, -u, -g and -m as those have
# explicit vzstorage_* options.
#
# Related options:
#
# * All other vzstorage_* options
#  (list value)
#vzstorage_mount_opts =


[matchmaker_redis]

#
# From oslo.messaging
#

# DEPRECATED: Host to locate redis. (string value)
# This option is deprecated for removal.
# Its value may be silently ignored in the future.
# Reason: Replaced by [DEFAULT]/transport_url
#host = 127.0.0.1

# DEPRECATED: Use this port to connect to redis host. (port value)
# Minimum value: 0
# Maximum value: 65535
# This option is deprecated for removal.
# Its value may be silently ignored in the future.
# Reason: Replaced by [DEFAULT]/transport_url
#port = 6379

# DEPRECATED: Password for Redis server (optional). (string value)
# This option is deprecated for removal.
# Its value may be silently ignored in the future.
# Reason: Replaced by [DEFAULT]/transport_url
#password =

# DEPRECATED: List of Redis Sentinel hosts (fault tolerance mode), e.g.,
# [host:port, host1:port ... ] (list value)
# This option is deprecated for removal.
# Its value may be silently ignored in the future.
# Reason: Replaced by [DEFAULT]/transport_url
#sentinel_hosts =

# Redis replica set name. (string value)
#sentinel_group_name = oslo-messaging-zeromq

# Time in ms to wait between connection attempts. (integer value)
#wait_timeout = 2000

# Time in ms to wait before the transaction is killed. (integer value)
#check_timeout = 20000

# Timeout in ms on blocking socket operations. (integer value)
#socket_timeout = 10000


[metrics]
#
# Configuration options for metrics
#
# Options under this group allow to adjust how values assigned to metrics are
# calculated.

#
# From nova.conf
#

#
# When using metrics to weight the suitability of a host, you can use this
# option
# to change how the calculated weight influences the weight assigned to a host
# as
# follows:
#
# * >1.0: increases the effect of the metric on overall weight
# * 1.0: no change to the calculated weight
# * >0.0,<1.0: reduces the effect of the metric on overall weight
# * 0.0: the metric value is ignored, and the value of the
#   'weight_of_unavailable' option is returned instead
# * >-1.0,<0.0: the effect is reduced and reversed
# * -1.0: the effect is reversed
# * <-1.0: the effect is increased proportionally and reversed
#
# This option is only used by the FilterScheduler and its subclasses; if you use
# a different scheduler, this option has no effect.
#
# Possible values:
#
# * An integer or float value, where the value corresponds to the multipler
#   ratio for this weigher.
#
# Related options:
#
# * weight_of_unavailable
#  (floating point value)
#weight_multiplier = 1.0

#
# This setting specifies the metrics to be weighed and the relative ratios for
# each metric. This should be a single string value, consisting of a series of
# one or more 'name=ratio' pairs, separated by commas, where 'name' is the name
# of the metric to be weighed, and 'ratio' is the relative weight for that
# metric.
#
# Note that if the ratio is set to 0, the metric value is ignored, and instead
# the weight will be set to the value of the 'weight_of_unavailable' option.
#
# As an example, let's consider the case where this option is set to:
#
#     ``name1=1.0, name2=-1.3``
#
# The final weight will be:
#
#     ``(name1.value * 1.0) + (name2.value * -1.3)``
#
# This option is only used by the FilterScheduler and its subclasses; if you use
# a different scheduler, this option has no effect.
#
# Possible values:
#
# * A list of zero or more key/value pairs separated by commas, where the key is
#   a string representing the name of a metric and the value is a numeric weight
#   for that metric. If any value is set to 0, the value is ignored and the
#   weight will be set to the value of the 'weight_of_unavailable' option.
#
# Related options:
#
# * weight_of_unavailable
#  (list value)
#weight_setting =

#
# This setting determines how any unavailable metrics are treated. If this
# option
# is set to True, any hosts for which a metric is unavailable will raise an
# exception, so it is recommended to also use the MetricFilter to filter out
# those hosts before weighing.
#
# This option is only used by the FilterScheduler and its subclasses; if you use
# a different scheduler, this option has no effect.
#
# Possible values:
#
# * True or False, where False ensures any metric being unavailable for a host
#   will set the host weight to 'weight_of_unavailable'.
#
# Related options:
#
# * weight_of_unavailable
#  (boolean value)
#required = true

#
# When any of the following conditions are met, this value will be used in place
# of any actual metric value:
#
# * One of the metrics named in 'weight_setting' is not available for a host,
#   and the value of 'required' is False
# * The ratio specified for a metric in 'weight_setting' is 0
# * The 'weight_multiplier' option is set to 0
#
# This option is only used by the FilterScheduler and its subclasses; if you use
# a different scheduler, this option has no effect.
#
# Possible values:
#
# * An integer or float value, where the value corresponds to the multipler
#   ratio for this weigher.
#
# Related options:
#
# * weight_setting
# * required
# * weight_multiplier
#  (floating point value)
#weight_of_unavailable = -10000.0


[mks]
#
# Nova compute node uses WebMKS, a desktop sharing protocol to provide
# instance console access to VM's created by VMware hypervisors.
#
# Related options:
# Following options must be set to provide console access.
# * mksproxy_base_url
# * enabled

#
# From nova.conf
#

#
# Location of MKS web console proxy
#
# The URL in the response points to a WebMKS proxy which
# starts proxying between client and corresponding vCenter
# server where instance runs. In order to use the web based
# console access, WebMKS proxy should be installed and configured
#
# Possible values:
#
# * Must be a valid URL of the form:``http://host:port/``
#  (string value)
#mksproxy_base_url = http://127.0.0.1:6090/

#
# Enables graphical console access for virtual machines.
#  (boolean value)
#enabled = false


[neutron]
#
# Configuration options for neutron (network connectivity as a service).

#
# From nova.conf
#

#
# This option specifies the URL for connecting to Neutron.
#
# Possible values:
#
# * Any valid URL that points to the Neutron API service is appropriate here.
#   This typically matches the URL returned for the 'network' service type
#   from the Keystone service catalog.
#  (uri value)
#url = http://127.0.0.1:9696

#
# Region name for connecting to Neutron in admin context.
#
# This option is used in multi-region setups. If there are two Neutron
# servers running in two regions in two different machines, then two
# services need to be created in Keystone with two different regions and
# associate corresponding endpoints to those services. When requests are made
# to Keystone, the Keystone service uses the region_name to determine the
# region the request is coming from.
#  (string value)
#region_name = RegionOne

#
# Default name for the Open vSwitch integration bridge.
#
# Specifies the name of an integration bridge interface used by OpenvSwitch.
# This option is only used if Neutron does not specify the OVS bridge name in
# port binding responses.
#  (string value)
#ovs_bridge = br-int

#
# Default name for the floating IP pool.
#
# Specifies the name of floating IP pool used for allocating floating IPs. This
# option is only used if Neutron does not specify the floating IP pool name in
# port binding reponses.
#  (string value)
#default_floating_pool = nova

#
# Integer value representing the number of seconds to wait before querying
# Neutron for extensions.  After this number of seconds the next time Nova
# needs to create a resource in Neutron it will requery Neutron for the
# extensions that it has loaded.  Setting value to 0 will refresh the
# extensions with no wait.
#  (integer value)
# Minimum value: 0
#extension_sync_interval = 600

#
# When set to True, this option indicates that Neutron will be used to proxy
# metadata requests and resolve instance ids. Otherwise, the instance ID must be
# passed to the metadata request in the 'X-Instance-ID' header.
#
# Related options:
#
# * metadata_proxy_shared_secret
#  (boolean value)
#service_metadata_proxy = false

#
# This option holds the shared secret string used to validate proxy requests to
# Neutron metadata requests. In order to be used, the
# 'X-Metadata-Provider-Signature' header must be supplied in the request.
#
# Related options:
#
# * service_metadata_proxy
#  (string value)
#metadata_proxy_shared_secret =

# PEM encoded Certificate Authority to use when verifying HTTPs connections.
# (string value)
#cafile = <None>

# PEM encoded client certificate cert file (string value)
#certfile = <None>

# PEM encoded client certificate key file (string value)
#keyfile = <None>

# Verify HTTPS connections. (boolean value)
#insecure = false

# Timeout value for http requests (integer value)
#timeout = <None>

# Authentication type to load (string value)
# Deprecated group/name - [neutron]/auth_plugin
#auth_type = <None>

# Config Section from which to load plugin specific options (string value)
#auth_section = <None>

# Authentication URL (string value)
#auth_url = <None>

# Domain ID to scope to (string value)
#domain_id = <None>

# Domain name to scope to (string value)
#domain_name = <None>

# Project ID to scope to (string value)
#project_id = <None>

# Project name to scope to (string value)
#project_name = <None>

# Domain ID containing project (string value)
#project_domain_id = <None>

# Domain name containing project (string value)
#project_domain_name = <None>

# Trust ID (string value)
#trust_id = <None>

# Optional domain ID to use with v3 and v2 parameters. It will be used for both
# the user and project domain in v3 and ignored in v2 authentication. (string
# value)
#default_domain_id = <None>

# Optional domain name to use with v3 API and v2 parameters. It will be used for
# both the user and project domain in v3 and ignored in v2 authentication.
# (string value)
#default_domain_name = <None>

# User ID (string value)
#user_id = <None>

# Username (string value)
# Deprecated group/name - [neutron]/user_name
#username = <None>

# User's domain id (string value)
#user_domain_id = <None>

# User's domain name (string value)
#user_domain_name = <None>

# User's password (string value)
#password = <None>

# Tenant ID (string value)
#tenant_id = <None>

# Tenant Name (string value)
#tenant_name = <None>


[notifications]
#
# Most of the actions in Nova which manipulate the system state generate
# notifications which are posted to the messaging component (e.g. RabbitMQ) and
# can be consumed by any service outside the Openstack. More technical details
# at http://docs.openstack.org/developer/nova/notifications.html

#
# From nova.conf
#

#
# If set, send compute.instance.update notifications on instance state
# changes.
#
# Please refer to https://wiki.openstack.org/wiki/SystemUsageData for
# additional information on notifications.
#
# Possible values:
#
# * None - no notifications
# * "vm_state" - notifications on VM state changes
# * "vm_and_task_state" - notifications on VM and task state changes
#  (string value)
# Allowed values: <None>, vm_state, vm_and_task_state
#notify_on_state_change = <None>

#
# If enabled, send api.fault notifications on caught exceptions in the
# API service.
#  (boolean value)
# Deprecated group/name - [DEFAULT]/notify_api_faults
#notify_on_api_faults = false

# Default notification level for outgoing notifications. (string value)
# Allowed values: DEBUG, INFO, WARN, ERROR, CRITICAL
# Deprecated group/name - [DEFAULT]/default_notification_level
#default_level = INFO

#
# Default publisher_id for outgoing notifications. If you consider routing
# notifications using different publisher, change this value accordingly.
#
# Possible values:
#
# * Defaults to the IPv4 address of this host, but it can be any valid
#   oslo.messaging publisher_id
#
# Related options:
#
# *  my_ip - IP address of this host
#  (string value)
#default_publisher_id = $my_ip

#
# Specifies which notification format shall be used by nova.
#
# The default value is fine for most deployments and rarely needs to be changed.
# This value can be set to 'versioned' once the infrastructure moves closer to
# consuming the newer format of notifications. After this occurs, this option
# will be removed (possibly in the "P" release).
#
# Possible values:
# * unversioned: Only the legacy unversioned notifications are emitted.
# * versioned: Only the new versioned notifications are emitted.
# * both: Both the legacy unversioned and the new versioned notifications are
#   emitted. (Default)
#
# The list of versioned notifications is visible in
# http://docs.openstack.org/developer/nova/notifications.html
#  (string value)
# Allowed values: unversioned, versioned, both
#notification_format = both

#
# Specifies the topics for the versioned notifications issued by nova.
#
# The default value is fine for most deployments and rarely needs to be changed.
# However, if you have a third-party service that consumes versioned
# notifications, it might be worth getting a topic for that service.
# Nova will send a message containing a versioned notification payload to each
# topic queue in this list.
#
# The list of versioned notifications is visible in
# http://docs.openstack.org/developer/nova/notifications.html
#  (list value)
#versioned_notifications_topics = versioned_notifications


[osapi_v21]

#
# From nova.conf
#

# DEPRECATED:
# This option is a string representing a regular expression (regex) that matches
# the project_id as contained in URLs. If not set, it will match normal UUIDs
# created by keystone.
#
# Possible values:
#
# * A string representing any legal regular expression
#  (string value)
# This option is deprecated for removal since 13.0.0.
# Its value may be silently ignored in the future.
# Reason:
# Recent versions of nova constrain project IDs to hexadecimal characters and
# dashes. If your installation uses IDs outside of this range, you should use
# this option to provide your own regex and give you time to migrate offending
# projects to valid IDs before the next release.
#project_id_regex = <None>


[oslo_concurrency]

#
# From oslo.concurrency
#

# Enables or disables inter-process locks. (boolean value)
#disable_process_locking = false

# Directory to use for lock files.  For security, the specified directory should
# only be writable by the user running the processes that need locking. Defaults
# to environment variable OSLO_LOCK_PATH. If external locks are used, a lock
# path must be set. (string value)
#lock_path = <None>


[oslo_messaging_amqp]

#
# From oslo.messaging
#

# Name for the AMQP container. must be globally unique. Defaults to a generated
# UUID (string value)
#container_name = <None>

# Timeout for inactive connections (in seconds) (integer value)
#idle_timeout = 0

# Debug: dump AMQP frames to stdout (boolean value)
#trace = false

# Attempt to connect via SSL. If no other ssl-related parameters are given, it
# will use the system's CA-bundle to verify the server's certificate. (boolean
# value)
#ssl = false

# CA certificate PEM file used to verify the server's certificate (string value)
#ssl_ca_file =

# Self-identifying certificate PEM file for client authentication (string value)
#ssl_cert_file =

# Private key PEM file used to sign ssl_cert_file certificate (optional) (string
# value)
#ssl_key_file =

# Password for decrypting ssl_key_file (if encrypted) (string value)
#ssl_key_password = <None>

# DEPRECATED: Accept clients using either SSL or plain TCP (boolean value)
# This option is deprecated for removal.
# Its value may be silently ignored in the future.
# Reason: Not applicable - not a SSL server
#allow_insecure_clients = false

# Space separated list of acceptable SASL mechanisms (string value)
#sasl_mechanisms =

# Path to directory that contains the SASL configuration (string value)
#sasl_config_dir =

# Name of configuration file (without .conf suffix) (string value)
#sasl_config_name =

# SASL realm to use if no realm present in username (string value)
#sasl_default_realm =

# DEPRECATED: User name for message broker authentication (string value)
# This option is deprecated for removal.
# Its value may be silently ignored in the future.
# Reason: Should use configuration option transport_url to provide the username.
#username =

# DEPRECATED: Password for message broker authentication (string value)
# This option is deprecated for removal.
# Its value may be silently ignored in the future.
# Reason: Should use configuration option transport_url to provide the password.
#password =

# Seconds to pause before attempting to re-connect. (integer value)
# Minimum value: 1
#connection_retry_interval = 1

# Increase the connection_retry_interval by this many seconds after each
# unsuccessful failover attempt. (integer value)
# Minimum value: 0
#connection_retry_backoff = 2

# Maximum limit for connection_retry_interval + connection_retry_backoff
# (integer value)
# Minimum value: 1
#connection_retry_interval_max = 30

# Time to pause between re-connecting an AMQP 1.0 link that failed due to a
# recoverable error. (integer value)
# Minimum value: 1
#link_retry_delay = 10

# The maximum number of attempts to re-send a reply message which failed due to
# a recoverable error. (integer value)
# Minimum value: -1
#default_reply_retry = 0

# The deadline for an rpc reply message delivery. (integer value)
# Minimum value: 5
#default_reply_timeout = 30

# The deadline for an rpc cast or call message delivery. Only used when caller
# does not provide a timeout expiry. (integer value)
# Minimum value: 5
#default_send_timeout = 30

# The deadline for a sent notification message delivery. Only used when caller
# does not provide a timeout expiry. (integer value)
# Minimum value: 5
#default_notify_timeout = 30

# The duration to schedule a purge of idle sender links. Detach link after
# expiry. (integer value)
# Minimum value: 1
#default_sender_link_timeout = 600

# Indicates the addressing mode used by the driver.
# Permitted values:
# 'legacy'   - use legacy non-routable addressing
# 'routable' - use routable addresses
# 'dynamic'  - use legacy addresses if the message bus does not support routing
# otherwise use routable addressing (string value)
#addressing_mode = dynamic

# address prefix used when sending to a specific server (string value)
#server_request_prefix = exclusive

# address prefix used when broadcasting to all servers (string value)
#broadcast_prefix = broadcast

# address prefix when sending to any server in group (string value)
#group_request_prefix = unicast

# Address prefix for all generated RPC addresses (string value)
#rpc_address_prefix = openstack.org/om/rpc

# Address prefix for all generated Notification addresses (string value)
#notify_address_prefix = openstack.org/om/notify

# Appended to the address prefix when sending a fanout message. Used by the
# message bus to identify fanout messages. (string value)
#multicast_address = multicast

# Appended to the address prefix when sending to a particular RPC/Notification
# server. Used by the message bus to identify messages sent to a single
# destination. (string value)
#unicast_address = unicast

# Appended to the address prefix when sending to a group of consumers. Used by
# the message bus to identify messages that should be delivered in a round-robin
# fashion across consumers. (string value)
#anycast_address = anycast

# Exchange name used in notification addresses.
# Exchange name resolution precedence:
# Target.exchange if set
# else default_notification_exchange if set
# else control_exchange if set
# else 'notify' (string value)
#default_notification_exchange = <None>

# Exchange name used in RPC addresses.
# Exchange name resolution precedence:
# Target.exchange if set
# else default_rpc_exchange if set
# else control_exchange if set
# else 'rpc' (string value)
#default_rpc_exchange = <None>

# Window size for incoming RPC Reply messages. (integer value)
# Minimum value: 1
#reply_link_credit = 200

# Window size for incoming RPC Request messages (integer value)
# Minimum value: 1
#rpc_server_credit = 100

# Window size for incoming Notification messages (integer value)
# Minimum value: 1
#notify_server_credit = 100

# Send messages of this type pre-settled.
# Pre-settled messages will not receive acknowledgement
# from the peer. Note well: pre-settled messages may be
# silently discarded if the delivery fails.
# Permitted values:
# 'rpc-call' - send RPC Calls pre-settled
# 'rpc-reply'- send RPC Replies pre-settled
# 'rpc-cast' - Send RPC Casts pre-settled
# 'notify'   - Send Notifications pre-settled
#  (multi valued)
#pre_settled = rpc-cast
#pre_settled = rpc-reply


[oslo_messaging_kafka]

#
# From oslo.messaging
#

# DEPRECATED: Default Kafka broker Host (string value)
# This option is deprecated for removal.
# Its value may be silently ignored in the future.
# Reason: Replaced by [DEFAULT]/transport_url
#kafka_default_host = localhost

# DEPRECATED: Default Kafka broker Port (port value)
# Minimum value: 0
# Maximum value: 65535
# This option is deprecated for removal.
# Its value may be silently ignored in the future.
# Reason: Replaced by [DEFAULT]/transport_url
#kafka_default_port = 9092

# Max fetch bytes of Kafka consumer (integer value)
#kafka_max_fetch_bytes = 1048576

# Default timeout(s) for Kafka consumers (floating point value)
#kafka_consumer_timeout = 1.0

# Pool Size for Kafka Consumers (integer value)
#pool_size = 10

# The pool size limit for connections expiration policy (integer value)
#conn_pool_min_size = 2

# The time-to-live in sec of idle connections in the pool (integer value)
#conn_pool_ttl = 1200

# Group id for Kafka consumer. Consumers in one group will coordinate message
# consumption (string value)
#consumer_group = oslo_messaging_consumer

# Upper bound on the delay for KafkaProducer batching in seconds (floating point
# value)
#producer_batch_timeout = 0.0

# Size of batch for the producer async send (integer value)
#producer_batch_size = 16384


[oslo_messaging_notifications]

#
# From oslo.messaging
#

# The Drivers(s) to handle sending notifications. Possible values are messaging,
# messagingv2, routing, log, test, noop (multi valued)
# Deprecated group/name - [DEFAULT]/notification_driver
#driver =

# A URL representing the messaging driver to use for notifications. If not set,
# we fall back to the same configuration used for RPC. (string value)
# Deprecated group/name - [DEFAULT]/notification_transport_url
#transport_url = <None>

# AMQP topic used for OpenStack notifications. (list value)
# Deprecated group/name - [rpc_notifier2]/topics
# Deprecated group/name - [DEFAULT]/notification_topics
#topics = notifications

# The maximum number of attempts to re-send a notification message which failed
# to be delivered due to a recoverable error. 0 - No retry, -1 - indefinite
# (integer value)
#retry = -1


[oslo_messaging_rabbit]

#
# From oslo.messaging
#

# Use durable queues in AMQP. (boolean value)
# Deprecated group/name - [DEFAULT]/amqp_durable_queues
# Deprecated group/name - [DEFAULT]/rabbit_durable_queues
#amqp_durable_queues = false

# Auto-delete queues in AMQP. (boolean value)
#amqp_auto_delete = false

# Enable SSL (boolean value)
#ssl = <None>

# SSL version to use (valid only if SSL enabled). Valid values are TLSv1 and
# SSLv23. SSLv2, SSLv3, TLSv1_1, and TLSv1_2 may be available on some
# distributions. (string value)
# Deprecated group/name - [oslo_messaging_rabbit]/kombu_ssl_version
#ssl_version =

# SSL key file (valid only if SSL enabled). (string value)
# Deprecated group/name - [oslo_messaging_rabbit]/kombu_ssl_keyfile
#ssl_key_file =

# SSL cert file (valid only if SSL enabled). (string value)
# Deprecated group/name - [oslo_messaging_rabbit]/kombu_ssl_certfile
#ssl_cert_file =

# SSL certification authority file (valid only if SSL enabled). (string value)
# Deprecated group/name - [oslo_messaging_rabbit]/kombu_ssl_ca_certs
#ssl_ca_file =

# How long to wait before reconnecting in response to an AMQP consumer cancel
# notification. (floating point value)
#kombu_reconnect_delay = 1.0

# EXPERIMENTAL: Possible values are: gzip, bz2. If not set compression will not
# be used. This option may not be available in future versions. (string value)
#kombu_compression = <None>

# How long to wait a missing client before abandoning to send it its replies.
# This value should not be longer than rpc_response_timeout. (integer value)
# Deprecated group/name - [oslo_messaging_rabbit]/kombu_reconnect_timeout
#kombu_missing_consumer_retry_timeout = 60

# Determines how the next RabbitMQ node is chosen in case the one we are
# currently connected to becomes unavailable. Takes effect only if more than one
# RabbitMQ node is provided in config. (string value)
# Allowed values: round-robin, shuffle
#kombu_failover_strategy = round-robin

# DEPRECATED: The RabbitMQ broker address where a single node is used. (string
# value)
# This option is deprecated for removal.
# Its value may be silently ignored in the future.
# Reason: Replaced by [DEFAULT]/transport_url
#rabbit_host = localhost

# DEPRECATED: The RabbitMQ broker port where a single node is used. (port value)
# Minimum value: 0
# Maximum value: 65535
# This option is deprecated for removal.
# Its value may be silently ignored in the future.
# Reason: Replaced by [DEFAULT]/transport_url
#rabbit_port = 5672

# DEPRECATED: RabbitMQ HA cluster host:port pairs. (list value)
# This option is deprecated for removal.
# Its value may be silently ignored in the future.
# Reason: Replaced by [DEFAULT]/transport_url
#rabbit_hosts = $rabbit_host:$rabbit_port

# DEPRECATED: The RabbitMQ userid. (string value)
# This option is deprecated for removal.
# Its value may be silently ignored in the future.
# Reason: Replaced by [DEFAULT]/transport_url
#rabbit_userid = guest

# DEPRECATED: The RabbitMQ password. (string value)
# This option is deprecated for removal.
# Its value may be silently ignored in the future.
# Reason: Replaced by [DEFAULT]/transport_url
#rabbit_password = guest

# The RabbitMQ login method. (string value)
# Allowed values: PLAIN, AMQPLAIN, RABBIT-CR-DEMO
#rabbit_login_method = AMQPLAIN

# DEPRECATED: The RabbitMQ virtual host. (string value)
# This option is deprecated for removal.
# Its value may be silently ignored in the future.
# Reason: Replaced by [DEFAULT]/transport_url
#rabbit_virtual_host = /

# How frequently to retry connecting with RabbitMQ. (integer value)
#rabbit_retry_interval = 1

# How long to backoff for between retries when connecting to RabbitMQ. (integer
# value)
#rabbit_retry_backoff = 2

# Maximum interval of RabbitMQ connection retries. Default is 30 seconds.
# (integer value)
#rabbit_interval_max = 30

# DEPRECATED: Maximum number of RabbitMQ connection retries. Default is 0
# (infinite retry count). (integer value)
# This option is deprecated for removal.
# Its value may be silently ignored in the future.
#rabbit_max_retries = 0

# Try to use HA queues in RabbitMQ (x-ha-policy: all). If you change this
# option, you must wipe the RabbitMQ database. In RabbitMQ 3.0, queue mirroring
# is no longer controlled by the x-ha-policy argument when declaring a queue. If
# you just want to make sure that all queues (except those with auto-generated
# names) are mirrored across all nodes, run: "rabbitmqctl set_policy HA
# '^(?!amq\.).*' '{"ha-mode": "all"}' " (boolean value)
#rabbit_ha_queues = false

# Positive integer representing duration in seconds for queue TTL (x-expires).
# Queues which are unused for the duration of the TTL are automatically deleted.
# The parameter affects only reply and fanout queues. (integer value)
# Minimum value: 1
#rabbit_transient_queues_ttl = 1800

# Specifies the number of messages to prefetch. Setting to zero allows unlimited
# messages. (integer value)
#rabbit_qos_prefetch_count = 0

# Number of seconds after which the Rabbit broker is considered down if
# heartbeat's keep-alive fails (0 disable the heartbeat). EXPERIMENTAL (integer
# value)
#heartbeat_timeout_threshold = 60

# How often times during the heartbeat_timeout_threshold we check the heartbeat.
# (integer value)
#heartbeat_rate = 2

# Deprecated, use rpc_backend=kombu+memory or rpc_backend=fake (boolean value)
#fake_rabbit = false

# Maximum number of channels to allow (integer value)
#channel_max = <None>

# The maximum byte size for an AMQP frame (integer value)
#frame_max = <None>

# How often to send heartbeats for consumer's connections (integer value)
#heartbeat_interval = 3

# Arguments passed to ssl.wrap_socket (dict value)
#ssl_options = <None>

# Set socket timeout in seconds for connection's socket (floating point value)
#socket_timeout = 0.25

# Set TCP_USER_TIMEOUT in seconds for connection's socket (floating point value)
#tcp_user_timeout = 0.25

# Set delay for reconnection to some host which has connection error (floating
# point value)
#host_connection_reconnect_delay = 0.25

# Connection factory implementation (string value)
# Allowed values: new, single, read_write
#connection_factory = single

# Maximum number of connections to keep queued. (integer value)
#pool_max_size = 30

# Maximum number of connections to create above `pool_max_size`. (integer value)
#pool_max_overflow = 0

# Default number of seconds to wait for a connections to available (integer
# value)
#pool_timeout = 30

# Lifetime of a connection (since creation) in seconds or None for no recycling.
# Expired connections are closed on acquire. (integer value)
#pool_recycle = 600

# Threshold at which inactive (since release) connections are considered stale
# in seconds or None for no staleness. Stale connections are closed on acquire.
# (integer value)
#pool_stale = 60

# Default serialization mechanism for serializing/deserializing
# outgoing/incoming messages (string value)
# Allowed values: json, msgpack
#default_serializer_type = json

# Persist notification messages. (boolean value)
#notification_persistence = false

# Exchange name for sending notifications (string value)
#default_notification_exchange = ${control_exchange}_notification

# Max number of not acknowledged message which RabbitMQ can send to notification
# listener. (integer value)
#notification_listener_prefetch_count = 100

# Reconnecting retry count in case of connectivity problem during sending
# notification, -1 means infinite retry. (integer value)
#default_notification_retry_attempts = -1

# Reconnecting retry delay in case of connectivity problem during sending
# notification message (floating point value)
#notification_retry_delay = 0.25

# Time to live for rpc queues without consumers in seconds. (integer value)
#rpc_queue_expiration = 60

# Exchange name for sending RPC messages (string value)
#default_rpc_exchange = ${control_exchange}_rpc

# Exchange name for receiving RPC replies (string value)
#rpc_reply_exchange = ${control_exchange}_rpc_reply

# Max number of not acknowledged message which RabbitMQ can send to rpc
# listener. (integer value)
#rpc_listener_prefetch_count = 100

# Max number of not acknowledged message which RabbitMQ can send to rpc reply
# listener. (integer value)
#rpc_reply_listener_prefetch_count = 100

# Reconnecting retry count in case of connectivity problem during sending reply.
# -1 means infinite retry during rpc_timeout (integer value)
#rpc_reply_retry_attempts = -1

# Reconnecting retry delay in case of connectivity problem during sending reply.
# (floating point value)
#rpc_reply_retry_delay = 0.25

# Reconnecting retry count in case of connectivity problem during sending RPC
# message, -1 means infinite retry. If actual retry attempts in not 0 the rpc
# request could be processed more than one time (integer value)
#default_rpc_retry_attempts = -1

# Reconnecting retry delay in case of connectivity problem during sending RPC
# message (floating point value)
#rpc_retry_delay = 0.25


[oslo_messaging_zmq]

#
# From oslo.messaging
#

# ZeroMQ bind address. Should be a wildcard (*), an ethernet interface, or IP.
# The "host" option should point or resolve to this address. (string value)
#rpc_zmq_bind_address = *

# MatchMaker driver. (string value)
# Allowed values: redis, sentinel, dummy
#rpc_zmq_matchmaker = redis

# Number of ZeroMQ contexts, defaults to 1. (integer value)
#rpc_zmq_contexts = 1

# Maximum number of ingress messages to locally buffer per topic. Default is
# unlimited. (integer value)
#rpc_zmq_topic_backlog = <None>

# Directory for holding IPC sockets. (string value)
#rpc_zmq_ipc_dir = /var/run/openstack

# Name of this node. Must be a valid hostname, FQDN, or IP address. Must match
# "host" option, if running Nova. (string value)
#rpc_zmq_host = localhost

# Number of seconds to wait before all pending messages will be sent after
# closing a socket. The default value of -1 specifies an infinite linger period.
# The value of 0 specifies no linger period. Pending messages shall be discarded
# immediately when the socket is closed. Positive values specify an upper bound
# for the linger period. (integer value)
# Deprecated group/name - [DEFAULT]/rpc_cast_timeout
#zmq_linger = -1

# The default number of seconds that poll should wait. Poll raises timeout
# exception when timeout expired. (integer value)
#rpc_poll_timeout = 1

# Expiration timeout in seconds of a name service record about existing target (
# < 0 means no timeout). (integer value)
#zmq_target_expire = 300

# Update period in seconds of a name service record about existing target.
# (integer value)
#zmq_target_update = 180

# Use PUB/SUB pattern for fanout methods. PUB/SUB always uses proxy. (boolean
# value)
#use_pub_sub = false

# Use ROUTER remote proxy. (boolean value)
#use_router_proxy = false

# This option makes direct connections dynamic or static. It makes sense only
# with use_router_proxy=False which means to use direct connections for direct
# message types (ignored otherwise). (boolean value)
#use_dynamic_connections = false

# How many additional connections to a host will be made for failover reasons.
# This option is actual only in dynamic connections mode. (integer value)
#zmq_failover_connections = 2

# Minimal port number for random ports range. (port value)
# Minimum value: 0
# Maximum value: 65535
#rpc_zmq_min_port = 49153

# Maximal port number for random ports range. (integer value)
# Minimum value: 1
# Maximum value: 65536
#rpc_zmq_max_port = 65536

# Number of retries to find free port number before fail with ZMQBindError.
# (integer value)
#rpc_zmq_bind_port_retries = 100

# Default serialization mechanism for serializing/deserializing
# outgoing/incoming messages (string value)
# Allowed values: json, msgpack
#rpc_zmq_serialization = json

# This option configures round-robin mode in zmq socket. True means not keeping
# a queue when server side disconnects. False means to keep queue and messages
# even if server is disconnected, when the server appears we send all
# accumulated messages to it. (boolean value)
#zmq_immediate = true

# Enable/disable TCP keepalive (KA) mechanism. The default value of -1 (or any
# other negative value) means to skip any overrides and leave it to OS default;
# 0 and 1 (or any other positive value) mean to disable and enable the option
# respectively. (integer value)
#zmq_tcp_keepalive = -1

# The duration between two keepalive transmissions in idle condition. The unit
# is platform dependent, for example, seconds in Linux, milliseconds in Windows
# etc. The default value of -1 (or any other negative value and 0) means to skip
# any overrides and leave it to OS default. (integer value)
#zmq_tcp_keepalive_idle = -1

# The number of retransmissions to be carried out before declaring that remote
# end is not available. The default value of -1 (or any other negative value and
# 0) means to skip any overrides and leave it to OS default. (integer value)
#zmq_tcp_keepalive_cnt = -1

# The duration between two successive keepalive retransmissions, if
# acknowledgement to the previous keepalive transmission is not received. The
# unit is platform dependent, for example, seconds in Linux, milliseconds in
# Windows etc. The default value of -1 (or any other negative value and 0) means
# to skip any overrides and leave it to OS default. (integer value)
#zmq_tcp_keepalive_intvl = -1

# Maximum number of (green) threads to work concurrently. (integer value)
#rpc_thread_pool_size = 100

# Expiration timeout in seconds of a sent/received message after which it is not
# tracked anymore by a client/server. (integer value)
#rpc_message_ttl = 300

# Wait for message acknowledgements from receivers. This mechanism works only
# via proxy without PUB/SUB. (boolean value)
#rpc_use_acks = false

# Number of seconds to wait for an ack from a cast/call. After each retry
# attempt this timeout is multiplied by some specified multiplier. (integer
# value)
#rpc_ack_timeout_base = 15

# Number to multiply base ack timeout by after each retry attempt. (integer
# value)
#rpc_ack_timeout_multiplier = 2

# Default number of message sending attempts in case of any problems occurred:
# positive value N means at most N retries, 0 means no retries, None or -1 (or
# any other negative values) mean to retry forever. This option is used only if
# acknowledgments are enabled. (integer value)
#rpc_retry_attempts = 3

# List of publisher hosts SubConsumer can subscribe on. This option has higher
# priority then the default publishers list taken from the matchmaker. (list
# value)
#subscribe_on =


[oslo_middleware]

#
# From oslo.middleware
#

# The maximum body size for each  request, in bytes. (integer value)
# Deprecated group/name - [DEFAULT]/osapi_max_request_body_size
# Deprecated group/name - [DEFAULT]/max_request_body_size
#max_request_body_size = 114688

# DEPRECATED: The HTTP Header that will be used to determine what the original
# request protocol scheme was, even if it was hidden by a SSL termination proxy.
# (string value)
# This option is deprecated for removal.
# Its value may be silently ignored in the future.
#secure_proxy_ssl_header = X-Forwarded-Proto

# Whether the application is behind a proxy or not. This determines if the
# middleware should parse the headers or not. (boolean value)
#enable_proxy_headers_parsing = false


[oslo_policy]

#
# From oslo.policy
#

# The file that defines policies. (string value)
#policy_file = policy.json

# Default rule. Enforced when a requested rule is not found. (string value)
#policy_default_rule = default

# Directories where policy configuration files are stored. They can be relative
# to any directory in the search path defined by the config_dir option, or
# absolute paths. The file defined by policy_file must exist for these
# directories to be searched.  Missing or empty directories are ignored. (multi
# valued)
#policy_dirs = policy.d


[pci]

#
# From nova.conf
#

#
# An alias for a PCI passthrough device requirement.
#
# This allows users to specify the alias in the extra_spec for a flavor, without
# needing to repeat all the PCI property requirements.
#
# Possible Values:
#
# * A list of JSON values which describe the aliases. For example:
#
#     alias = {
#       "name": "QuickAssist",
#       "product_id": "0443",
#       "vendor_id": "8086",
#       "device_type": "type-PCI"
#     }
#
#   defines an alias for the Intel QuickAssist card. (multi valued). Valid key
#   values are :
#
#   * "name": Name of the PCI alias.
#   * "product_id": Product ID of the device in hexadecimal.
#   * "vendor_id": Vendor ID of the device in hexadecimal.
#   * "device_type": Type of PCI device. Valid values are: "type-PCI",
#     "type-PF" and "type-VF".
#  (multi valued)
# Deprecated group/name - [DEFAULT]/pci_alias
#alias =

#
# White list of PCI devices available to VMs.
#
# Possible values:
#
# * A JSON dictionary which describe a whitelisted PCI device. It should take
#   the following format:
#
#     ["vendor_id": "<id>",] ["product_id": "<id>",]
#     ["address": "[[[[<domain>]:]<bus>]:][<slot>][.[<function>]]" |
#      "devname": "<name>",]
#     {"<tag>": "<tag_value>",}
#
#   Where '[' indicates zero or one occurrences, '{' indicates zero or multiple
#   occurrences, and '|' mutually exclusive options. Note that any missing
#   fields are automatically wildcarded.
#
#   Valid key values are :
#
#   * "vendor_id": Vendor ID of the device in hexadecimal.
#   * "product_id": Product ID of the device in hexadecimal.
#   * "address": PCI address of the device.
#   * "devname": Device name of the device (for e.g. interface name). Not all
#     PCI devices have a name.
#   * "<tag>": Additional <tag> and <tag_value> used for matching PCI devices.
#     Supported <tag>: "physical_network".
#
#   The address key supports traditional glob style and regular expression
#   syntax. Valid examples are:
#
#     passthrough_whitelist = {"devname":"eth0",
#                              "physical_network":"physnet"}
#     passthrough_whitelist = {"address":"*:0a:00.*"}
#     passthrough_whitelist = {"address":":0a:00.",
#                              "physical_network":"physnet1"}
#     passthrough_whitelist = {"vendor_id":"1137",
#                              "product_id":"0071"}
#     passthrough_whitelist = {"vendor_id":"1137",
#                              "product_id":"0071",
#                              "address": "0000:0a:00.1",
#                              "physical_network":"physnet1"}
#     passthrough_whitelist = {"address":{"domain": ".*",
#                                         "bus": "02", "slot": "01",
#                                         "function": "[2-7]"},
#                              "physical_network":"physnet1"}
#     passthrough_whitelist = {"address":{"domain": ".*",
#                                         "bus": "02", "slot": "0[1-2]",
#                                         "function": ".*"},
#                              "physical_network":"physnet1"}
#
#   The following are invalid, as they specify mutually exclusive options:
#
#     passthrough_whitelist = {"devname":"eth0",
#                              "physical_network":"physnet",
#                              "address":"*:0a:00.*"}
#
# * A JSON list of JSON dictionaries corresponding to the above format. For
#   example:
#
#     passthrough_whitelist = [{"product_id":"0001", "vendor_id":"8086"},
#                              {"product_id":"0002", "vendor_id":"8086"}]
#  (multi valued)
# Deprecated group/name - [DEFAULT]/pci_passthrough_whitelist
#passthrough_whitelist =


[placement]

#
# From nova.conf
#

#
# Region name of this node. This is used when picking the URL in the service
# catalog.
#
# Possible values:
#
# * Any string representing region name
#  (string value)
#os_region_name = <None>

#
# Endpoint interface for this node. This is used when picking the URL in the
# service catalog.
#  (string value)
#os_interface = <None>

# PEM encoded Certificate Authority to use when verifying HTTPs connections.
# (string value)
#cafile = <None>

# PEM encoded client certificate cert file (string value)
#certfile = <None>

# PEM encoded client certificate key file (string value)
#keyfile = <None>

# Verify HTTPS connections. (boolean value)
#insecure = false

# Timeout value for http requests (integer value)
#timeout = <None>

# Authentication type to load (string value)
# Deprecated group/name - [placement]/auth_plugin
#auth_type = <None>

# Config Section from which to load plugin specific options (string value)
#auth_section = <None>

# Authentication URL (string value)
#auth_url = <None>

# Domain ID to scope to (string value)
#domain_id = <None>

# Domain name to scope to (string value)
#domain_name = <None>

# Project ID to scope to (string value)
#project_id = <None>

# Project name to scope to (string value)
#project_name = <None>

# Domain ID containing project (string value)
#project_domain_id = <None>

# Domain name containing project (string value)
#project_domain_name = <None>

# Trust ID (string value)
#trust_id = <None>

# Optional domain ID to use with v3 and v2 parameters. It will be used for both
# the user and project domain in v3 and ignored in v2 authentication. (string
# value)
#default_domain_id = <None>

# Optional domain name to use with v3 API and v2 parameters. It will be used for
# both the user and project domain in v3 and ignored in v2 authentication.
# (string value)
#default_domain_name = <None>

# User ID (string value)
#user_id = <None>

# Username (string value)
# Deprecated group/name - [placement]/user_name
#username = <None>

# User's domain id (string value)
#user_domain_id = <None>

# User's domain name (string value)
#user_domain_name = <None>

# User's password (string value)
#password = <None>

# Tenant ID (string value)
#tenant_id = <None>

# Tenant Name (string value)
#tenant_name = <None>


[quota]
#
# Quota options allow to manage quotas in openstack deployment.

#
# From nova.conf
#

#
# The number of instances allowed per project.
#
# Possible Values
#
# * A positive integer or 0.
# * -1 to disable the quota.
#  (integer value)
# Minimum value: -1
# Deprecated group/name - [DEFAULT]/quota_instances
#instances = 10

#
# The number of instance cores or vCPUs allowed per project.
#
# Possible values:
#
# * A positive integer or 0.
# * -1 to disable the quota.
#  (integer value)
# Minimum value: -1
# Deprecated group/name - [DEFAULT]/quota_cores
#cores = 20

#
# The number of megabytes of instance RAM allowed per project.
#
# Possible values:
#
# * A positive integer or 0.
# * -1 to disable the quota.
#  (integer value)
# Minimum value: -1
# Deprecated group/name - [DEFAULT]/quota_ram
#ram = 51200

# DEPRECATED:
# The number of floating IPs allowed per project.
#
# Floating IPs are not allocated to instances by default. Users need to select
# them from the pool configured by the OpenStack administrator to attach to
# their
# instances.
#
# Possible values:
#
# * A positive integer or 0.
# * -1 to disable the quota.
#  (integer value)
# Minimum value: -1
# Deprecated group/name - [DEFAULT]/quota_floating_ips
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#floating_ips = 10

# DEPRECATED:
# The number of fixed IPs allowed per project.
#
# Unlike floating IPs, fixed IPs are allocated dynamically by the network
# component when instances boot up.  This quota value should be at least the
# number of instances allowed
#
# Possible values:
#
# * A positive integer or 0.
# * -1 to disable the quota.
#  (integer value)
# Minimum value: -1
# Deprecated group/name - [DEFAULT]/quota_fixed_ips
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#fixed_ips = -1

#
# The number of metadata items allowed per instance.
#
# Users can associate metadata with an instance during instance creation. This
# metadata takes the form of key-value pairs.
#
# Possible values:
#
# * A positive integer or 0.
# * -1 to disable the quota.
#  (integer value)
# Minimum value: -1
# Deprecated group/name - [DEFAULT]/quota_metadata_items
#metadata_items = 128

#
# The number of injected files allowed.
#
# File injection allows users to customize the personality of an instance by
# injecting data into it upon boot. Only text file injection is permitted:
# binary
# or ZIP files are not accepted. During file injection, any existing files that
# match specified files are renamed to include ``.bak`` extension appended with
# a
# timestamp.
#
# Possible values:
#
# * A positive integer or 0.
# * -1 to disable the quota.
#  (integer value)
# Minimum value: -1
# Deprecated group/name - [DEFAULT]/quota_injected_files
#injected_files = 5

#
# The number of bytes allowed per injected file.
#
# Possible values:
#
# * A positive integer or 0.
# * -1 to disable the quota.
#  (integer value)
# Minimum value: -1
# Deprecated group/name - [DEFAULT]/quota_injected_file_content_bytes
#injected_file_content_bytes = 10240

#
# The maximum allowed injected file path length.
#
# Possible values:
#
# * A positive integer or 0.
# * -1 to disable the quota.
#  (integer value)
# Minimum value: -1
# Deprecated group/name - [DEFAULT]/quota_injected_file_path_length
#injected_file_path_length = 255

# DEPRECATED:
# The number of security groups per project.
#
# Possible values:
#
# * A positive integer or 0.
# * -1 to disable the quota.
#  (integer value)
# Minimum value: -1
# Deprecated group/name - [DEFAULT]/quota_security_groups
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#security_groups = 10

# DEPRECATED:
# The number of security rules per security group.
#
# The associated rules in each security group control the traffic to instances
# in
# the group.
#
# Possible values:
#
# * A positive integer or 0.
# * -1 to disable the quota.
#  (integer value)
# Minimum value: -1
# Deprecated group/name - [DEFAULT]/quota_security_group_rules
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# nova-network is deprecated, as are any related configuration options.
#security_group_rules = 20

#
# The maximum number of key pairs allowed per user.
#
# Users can create at least one key pair for each project and use the key pair
# for multiple instances that belong to that project.
#
# Possible values:
#
# * A positive integer or 0.
# * -1 to disable the quota.
#  (integer value)
# Minimum value: -1
# Deprecated group/name - [DEFAULT]/quota_key_pairs
#key_pairs = 100

#
# The maxiumum number of server groups per project.
#
# Server groups are used to control the affinity and anti-affinity scheduling
# policy for a group of servers or instances. Reducing the quota will not affect
# any existing group, but new servers will not be allowed into groups that have
# become over quota.
#
# Possible values:
#
# * A positive integer or 0.
# * -1 to disable the quota.
#  (integer value)
# Minimum value: -1
# Deprecated group/name - [DEFAULT]/quota_server_groups
#server_groups = 10

#
# The maximum number of servers per server group.
#
# Possible values:
#
# * A positive integer or 0.
# * -1 to disable the quota.
#  (integer value)
# Minimum value: -1
# Deprecated group/name - [DEFAULT]/quota_server_group_members
#server_group_members = 10

#
# The number of seconds until a reservation expires.
#
# This quota represents the time period for invalidating quota reservations.
#  (integer value)
#reservation_expire = 86400

#
# The count of reservations until usage is refreshed.
#
# This defaults to 0 (off) to avoid additional load but it is useful to turn on
# to help keep quota usage up-to-date and reduce the impact of out of sync usage
# issues.
#  (integer value)
# Minimum value: 0
#until_refresh = 0

#
# The number of seconds between subsequent usage refreshes.
#
# This defaults to 0 (off) to avoid additional load but it is useful to turn on
# to help keep quota usage up-to-date and reduce the impact of out of sync usage
# issues. Note that quotas are not updated on a periodic task, they will update
# on a new reservation if max_age has passed since the last reservation.
#  (integer value)
# Minimum value: 0
#max_age = 0

# DEPRECATED:
# The quota enforcer driver.
#
# Provides abstraction for quota checks. Users can configure a specific
# driver to use for quota checks.
#
# Possible values:
#
# * nova.quota.DbQuotaDriver (default) or any string representing fully
#   qualified class name.
#  (string value)
# Deprecated group/name - [DEFAULT]/quota_driver
# This option is deprecated for removal since 14.0.0.
# Its value may be silently ignored in the future.
#driver = nova.quota.DbQuotaDriver


[rdp]
#
# Options under this group enable and configure Remote Desktop Protocol (
# RDP) related features.
#
# This group is only relevant to Hyper-V users.

#
# From nova.conf
#

#
# Enable Remote Desktop Protocol (RDP) related features.
#
# Hyper-V, unlike the majority of the hypervisors employed on Nova compute
# nodes, uses RDP instead of VNC and SPICE as a desktop sharing protocol to
# provide instance console access. This option enables RDP for graphical
# console access for virtual machines created by Hyper-V.
#
# **Note:** RDP should only be enabled on compute nodes that support the Hyper-V
# virtualization platform.
#
# Related options:
#
# * ``compute_driver``: Must be hyperv.
#
#  (boolean value)
#enabled = false

#
# The URL an end user would use to connect to the RDP HTML5 console proxy.
# The console proxy service is called with this token-embedded URL and
# establishes the connection to the proper instance.
#
# An RDP HTML5 console proxy service will need to be configured to listen on the
# address configured here. Typically the console proxy service would be run on a
# controller node. The localhost address used as default would only work in a
# single node environment i.e. devstack.
#
# An RDP HTML5 proxy allows a user to access via the web the text or graphical
# console of any Windows server or workstation using RDP. RDP HTML5 console
# proxy services include FreeRDP, wsgate.
# See https://github.com/FreeRDP/FreeRDP-WebConnect
#
# Possible values:
#
# * <scheme>://<ip-address>:<port-number>/
#
#   The scheme must be identical to the scheme configured for the RDP HTML5
#   console proxy service.
#
#   The IP address must be identical to the address on which the RDP HTML5
#   console proxy service is listening.
#
#   The port must be identical to the port on which the RDP HTML5 console proxy
#   service is listening.
#
# Related options:
#
# * ``rdp.enabled``: Must be set to ``True`` for ``html5_proxy_base_url`` to be
#   effective.
#  (string value)
#html5_proxy_base_url = http://127.0.0.1:6083/


[remote_debug]

#
# From nova.conf
#

#
# Debug host (IP or name) to connect to. This command line parameter is used
# when
# you want to connect to a nova service via a debugger running on a different
# host.
#
# Note that using the remote debug option changes how Nova uses the eventlet
# library to support async IO. This could result in failures that do not occur
# under normal operation. Use at your own risk.
#
# Possible Values:
#
#    * IP address of a remote host as a command line parameter
#      to a nova service. For Example:
#
#     /usr/local/bin/nova-compute --config-file /etc/nova/nova.conf
#     --remote_debug-host <IP address where the debugger is running>
#  (unknown value)
#host = <None>

#
# Debug port to connect to. This command line parameter allows you to specify
# the port you want to use to connect to a nova service via a debugger running
# on different host.
#
# Note that using the remote debug option changes how Nova uses the eventlet
# library to support async IO. This could result in failures that do not occur
# under normal operation. Use at your own risk.
#
# Possible Values:
#
#    * Port number you want to use as a command line parameter
#      to a nova service. For Example:
#
#     /usr/local/bin/nova-compute --config-file /etc/nova/nova.conf
#     --remote_debug-host <IP address where the debugger is running>
#     --remote_debug-port <port> it's listening on>.
#  (port value)
# Minimum value: 0
# Maximum value: 65535
#port = <None>


[scheduler]

#
# From nova.conf
#

#
# The scheduler host manager to use.
#
# The host manager manages the in-memory picture of the hosts that the scheduler
# uses. The options values are chosen from the entry points under the namespace
# 'nova.scheduler.host_manager' in 'setup.cfg'.
#  (string value)
# Allowed values: host_manager, ironic_host_manager
# Deprecated group/name - [DEFAULT]/scheduler_host_manager
#host_manager = host_manager

#
# The class of the driver used by the scheduler.
#
# The options are chosen from the entry points under the namespace
# 'nova.scheduler.driver' in 'setup.cfg'.
#
# Possible values:
#
# * A string, where the string corresponds to the class name of a scheduler
#   driver. There are a number of options available:
# ** 'caching_scheduler', which aggressively caches the system state for better
#    individual scheduler performance at the risk of more retries when running
#    multiple schedulers
# ** 'chance_scheduler', which simply picks a host at random
# ** 'fake_scheduler', which is used for testing
#  (string value)
# Allowed values: filter_scheduler, caching_scheduler, chance_scheduler, fake_scheduler
# Deprecated group/name - [DEFAULT]/scheduler_driver
#driver = filter_scheduler

#
# Periodic task interval.
#
# This value controls how often (in seconds) to run periodic tasks in the
# scheduler. The specific tasks that are run for each period are determined by
# the particular scheduler being used.
#
# If this is larger than the nova-service 'service_down_time' setting, Nova may
# report the scheduler service as down. This is because the scheduler driver is
# responsible for sending a heartbeat and it will only do that as often as this
# option allows. As each scheduler can work a little differently than the
# others,
# be sure to test this with your selected scheduler.
#
# Possible values:
#
# * An integer, where the integer corresponds to periodic task interval in
#   seconds. 0 uses the default interval (60 seconds). A negative value disables
#   periodic tasks.
#
# Related options:
#
# * ``nova-service service_down_time``
#  (integer value)
# Deprecated group/name - [DEFAULT]/scheduler_driver_task_period
#periodic_task_interval = 60

#
# Maximum number of schedule attempts for a chosen host.
#
# This is the maximum number of attempts that will be made to schedule an
# instance before it is assumed that the failures aren't due to normal
# occasional
# race conflicts, but rather some other problem. When this is reached a
# MaxRetriesExceeded exception is raised, and the instance is set to an error
# state.
#
# Possible values:
#
# * A positive integer, where the integer corresponds to the max number of
#   attempts that can be made when scheduling an instance.
#          (integer value)
# Minimum value: 1
# Deprecated group/name - [DEFAULT]/scheduler_max_attempts
#max_attempts = 3

#
# Periodic task interval.
#
# This value controls how often (in seconds) the scheduler should attempt
# to discover new hosts that have been added to cells. If negative (the
# default), no automatic discovery will occur.
#
# Deployments where compute nodes come and go frequently may want this
# enabled, where others may prefer to manually discover hosts when one
# is added to avoid any overhead from constantly checking. If enabled,
# every time this runs, we will select any unmapped hosts out of each
# cell database on every run.
#  (integer value)
# Minimum value: -1
#discover_hosts_in_cells_interval = -1


[serial_console]
#
# The serial console feature allows you to connect to a guest in case a
# graphical console like VNC, RDP or SPICE is not available. This is only
# currently supported for the libvirt, Ironic and hyper-v drivers.

#
# From nova.conf
#

#
# Enable the serial console feature.
#
# In order to use this feature, the service ``nova-serialproxy`` needs to run.
# This service is typically executed on the controller node.
#  (boolean value)
#enabled = false

#
# A range of TCP ports a guest can use for its backend.
#
# Each instance which gets created will use one port out of this range. If the
# range is not big enough to provide another port for an new instance, this
# instance won't get launched.
#
# Possible values:
#
# * Each string which passes the regex ``\d+:\d+`` For example ``10000:20000``.
#   Be sure that the first port number is lower than the second port number
#   and that both are in range from 0 to 65535.
#  (string value)
#port_range = 10000:20000

#
# The URL an end user would use to connect to the ``nova-serialproxy`` service.
#
# The ``nova-serialproxy`` service is called with this token enriched URL
# and establishes the connection to the proper instance.
#
# Related options:
#
# * The IP address must be identical to the address to which the
#   ``nova-serialproxy`` service is listening (see option ``serialproxy_host``
#   in this section).
# * The port must be the same as in the option ``serialproxy_port`` of this
#   section.
# * If you choose to use a secured websocket connection, then start this option
#   with ``wss://`` instead of the unsecured ``ws://``. The options ``cert``
#   and ``key`` in the ``[DEFAULT]`` section have to be set for that.
#  (uri value)
#base_url = ws://127.0.0.1:6083/

#
# The IP address to which proxy clients (like ``nova-serialproxy``) should
# connect to get the serial console of an instance.
#
# This is typically the IP address of the host of a ``nova-compute`` service.
#  (string value)
#proxyclient_address = 127.0.0.1

#
# The IP address which is used by the ``nova-serialproxy`` service to listen
# for incoming requests.
#
# The ``nova-serialproxy`` service listens on this IP address for incoming
# connection requests to instances which expose serial console.
#
# Related options:
#
# * Ensure that this is the same IP address which is defined in the option
#   ``base_url`` of this section or use ``0.0.0.0`` to listen on all addresses.
#  (string value)
#serialproxy_host = 0.0.0.0

#
# The port number which is used by the ``nova-serialproxy`` service to listen
# for incoming requests.
#
# The ``nova-serialproxy`` service listens on this port number for incoming
# connection requests to instances which expose serial console.
#
# Related options:
#
# * Ensure that this is the same port number which is defined in the option
#   ``base_url`` of this section.
#  (port value)
# Minimum value: 0
# Maximum value: 65535
#serialproxy_port = 6083


[service_user]
#
# Configuration options for service to service authentication using a service
# token. These options allow to send a service token along with the
# user's token when contacting external REST APIs.

#
# From nova.conf
#

#
# When True, if sending a user token to an REST API, also send a service token.
#
# Nova often reuses the user token provided to the nova-api to talk to other
# REST APIs, such as Cinder and Neutron. It is possible that while the
# user token was valid when the request was made to Nova, the token may expire
# before it reaches the other service. To avoid any failures, and to
# make it clear it is Nova calling the service on the users behalf, we include
# a server token along with the user token. Should the user's token have
# expired, a valid service token ensures the REST API request will still be
# accepted by the keystone middleware.
#
# This feature is currently experimental, and as such is turned off by default
# while full testing and performance tuning of this feature is completed.
#  (boolean value)
#send_service_user_token = false

# PEM encoded Certificate Authority to use when verifying HTTPs connections.
# (string value)
#cafile = <None>

# PEM encoded client certificate cert file (string value)
#certfile = <None>

# PEM encoded client certificate key file (string value)
#keyfile = <None>

# Verify HTTPS connections. (boolean value)
#insecure = false

# Timeout value for http requests (integer value)
#timeout = <None>

# Authentication type to load (string value)
# Deprecated group/name - [service_user]/auth_plugin
#auth_type = <None>

# Config Section from which to load plugin specific options (string value)
#auth_section = <None>

# Authentication URL (string value)
#auth_url = <None>

# Domain ID to scope to (string value)
#domain_id = <None>

# Domain name to scope to (string value)
#domain_name = <None>

# Project ID to scope to (string value)
#project_id = <None>

# Project name to scope to (string value)
#project_name = <None>

# Domain ID containing project (string value)
#project_domain_id = <None>

# Domain name containing project (string value)
#project_domain_name = <None>

# Trust ID (string value)
#trust_id = <None>

# Optional domain ID to use with v3 and v2 parameters. It will be used for both
# the user and project domain in v3 and ignored in v2 authentication. (string
# value)
#default_domain_id = <None>

# Optional domain name to use with v3 API and v2 parameters. It will be used for
# both the user and project domain in v3 and ignored in v2 authentication.
# (string value)
#default_domain_name = <None>

# User ID (string value)
#user_id = <None>

# Username (string value)
# Deprecated group/name - [service_user]/user_name
#username = <None>

# User's domain id (string value)
#user_domain_id = <None>

# User's domain name (string value)
#user_domain_name = <None>

# User's password (string value)
#password = <None>

# Tenant ID (string value)
#tenant_id = <None>

# Tenant Name (string value)
#tenant_name = <None>


[spice]
#
# SPICE console feature allows you to connect to a guest virtual machine.
# SPICE is a replacement for fairly limited VNC protocol.
#
# Following requirements must be met in order to use SPICE:
#
# * Virtualization driver must be libvirt
# * spice.enabled set to True
# * vnc.enabled set to False
# * update html5proxy_base_url
# * update server_proxyclient_address

#
# From nova.conf
#

#
# Enable SPICE related features.
#
# Related options:
#
# * VNC must be explicitly disabled to get access to the SPICE console. Set the
#   enabled option to False in the [vnc] section to disable the VNC console.
#  (boolean value)
#enabled = false

#
# Enable the SPICE guest agent support on the instances.
#
# The Spice agent works with the Spice protocol to offer a better guest console
# experience. However, the Spice console can still be used without the Spice
# Agent. With the Spice agent installed the following features are enabled:
#
# * Copy & Paste of text and images between the guest and client machine
# * Automatic adjustment of resolution when the client screen changes - e.g.
#   if you make the Spice console full screen the guest resolution will adjust
# to
#   match it rather than letterboxing.
# * Better mouse integration - The mouse can be captured and released without
#   needing to click inside the console or press keys to release it. The
#   performance of mouse movement is also improved.
#  (boolean value)
#agent_enabled = true

#
# Location of the SPICE HTML5 console proxy.
#
# End user would use this URL to connect to the `nova-spicehtml5proxy``
# service. This service will forward request to the console of an instance.
#
# In order to use SPICE console, the service ``nova-spicehtml5proxy`` should be
# running. This service is typically launched on the controller node.
#
# Possible values:
#
# * Must be a valid URL of the form:  ``http://host:port/spice_auto.html``
#   where host is the node running ``nova-spicehtml5proxy`` and the port is
#   typically 6082. Consider not using default value as it is not well defined
#   for any real deployment.
#
# Related options:
#
# * This option depends on ``html5proxy_host`` and ``html5proxy_port`` options.
#   The access URL returned by the compute node must have the host
#   and port where the ``nova-spicehtml5proxy`` service is listening.
#  (uri value)
#html5proxy_base_url = http://127.0.0.1:6082/spice_auto.html

#
# The  address where the SPICE server running on the instances should listen.
#
# Typically, the ``nova-spicehtml5proxy`` proxy client runs on the controller
# node and connects over the private network to this address on the compute
# node(s).
#
# Possible values:
#
# * IP address to listen on.
#  (string value)
#server_listen = 127.0.0.1

#
# The address used by ``nova-spicehtml5proxy`` client to connect to instance
# console.
#
# Typically, the ``nova-spicehtml5proxy`` proxy client runs on the
# controller node and connects over the private network to this address on the
# compute node(s).
#
# Possible values:
#
# * Any valid IP address on the compute node.
#
# Related options:
#
# * This option depends on the ``server_listen`` option.
#   The proxy client must be able to access the address specified in
#   ``server_listen`` using the value of this option.
#  (string value)
#server_proxyclient_address = 127.0.0.1

#
# A keyboard layout which is supported by the underlying hypervisor on this
# node.
#
# Possible values:
# * This is usually an 'IETF language tag' (default is 'en-us'). If you
#   use QEMU as hypervisor, you should find the list of supported keyboard
#   layouts at /usr/share/qemu/keymaps.
#  (string value)
#keymap = en-us

#
# IP address or a hostname on which the ``nova-spicehtml5proxy`` service
# listens for incoming requests.
#
# Related options:
#
# * This option depends on the ``html5proxy_base_url`` option.
#   The ``nova-spicehtml5proxy`` service must be listening on a host that is
#   accessible from the HTML5 client.
#  (unknown value)
#html5proxy_host = 0.0.0.0

#
# Port on which the ``nova-spicehtml5proxy`` service listens for incoming
# requests.
#
# Related options:
#
# * This option depends on the ``html5proxy_base_url`` option.
#   The ``nova-spicehtml5proxy`` service must be listening on a port that is
#   accessible from the HTML5 client.
#  (port value)
# Minimum value: 0
# Maximum value: 65535
#html5proxy_port = 6082


[ssl]

#
# From nova.conf
#

# CA certificate file to use to verify connecting clients. (string value)
# Deprecated group/name - [DEFAULT]/ssl_ca_file
#ca_file = <None>

# Certificate file to use when starting the server securely. (string value)
# Deprecated group/name - [DEFAULT]/ssl_cert_file
#cert_file = <None>

# Private key file to use when starting the server securely. (string value)
# Deprecated group/name - [DEFAULT]/ssl_key_file
#key_file = <None>

# SSL version to use (valid only if SSL enabled). Valid values are TLSv1 and
# SSLv23. SSLv2, SSLv3, TLSv1_1, and TLSv1_2 may be available on some
# distributions. (string value)
#version = <None>

# Sets the list of available ciphers. value should be a string in the OpenSSL
# cipher list format. (string value)
#ciphers = <None>


[trusted_computing]
#
# Configuration options for enabling Trusted Platform Module.

#
# From nova.conf
#

# DEPRECATED:
# The host to use as the attestation server.
#
# Cloud computing pools can involve thousands of compute nodes located at
# different geographical locations, making it difficult for cloud providers to
# identify a node's trustworthiness. When using the Trusted filter, users can
# request that their VMs only be placed on nodes that have been verified by the
# attestation server specified in this option.
#
# This option is only used by the FilterScheduler and its subclasses; if you use
# a different scheduler, this option has no effect. Also note that this setting
# only affects scheduling if the 'TrustedFilter' filter is enabled.
#
# Possible values:
#
# * A string representing the host name or IP address of the attestation server,
#   or an empty string.
#
# Related options:
#
# * attestation_server_ca_file
# * attestation_port
# * attestation_api_url
# * attestation_auth_blob
# * attestation_auth_timeout
# * attestation_insecure_ssl
#  (unknown value)
# This option is deprecated for removal since Pike.
# Its value may be silently ignored in the future.
# Reason: Incomplete filter
#attestation_server = <None>

# DEPRECATED:
# The absolute path to the certificate to use for authentication when connecting
# to the attestation server. See the `attestation_server` help text for more
# information about host verification.
#
# This option is only used by the FilterScheduler and its subclasses; if you use
# a different scheduler, this option has no effect. Also note that this setting
# only affects scheduling if the 'TrustedFilter' filter is enabled.
#
# Possible values:
#
# * A string representing the path to the authentication certificate for the
#   attestation server, or an empty string.
#
# Related options:
#
# * attestation_server
# * attestation_port
# * attestation_api_url
# * attestation_auth_blob
# * attestation_auth_timeout
# * attestation_insecure_ssl
#  (string value)
# This option is deprecated for removal since Pike.
# Its value may be silently ignored in the future.
# Reason: Incomplete filter
#attestation_server_ca_file = <None>

# DEPRECATED:
# The port to use when connecting to the attestation server. See the
# `attestation_server` help text for more information about host verification.
#
# This option is only used by the FilterScheduler and its subclasses; if you use
# a different scheduler, this option has no effect. Also note that this setting
# only affects scheduling if the 'TrustedFilter' filter is enabled.
#
# Related options:
#
# * attestation_server
# * attestation_server_ca_file
# * attestation_api_url
# * attestation_auth_blob
# * attestation_auth_timeout
# * attestation_insecure_ssl
#  (port value)
# Minimum value: 0
# Maximum value: 65535
# This option is deprecated for removal since Pike.
# Its value may be silently ignored in the future.
# Reason: Incomplete filter
#attestation_port = 8443

# DEPRECATED:
# The URL on the attestation server to use. See the `attestation_server` help
# text for more information about host verification.
#
# This value must be just that path portion of the full URL, as it will be
# joined
# to the host specified in the attestation_server option.
#
# This option is only used by the FilterScheduler and its subclasses; if you use
# a different scheduler, this option has no effect. Also note that this setting
# only affects scheduling if the 'TrustedFilter' filter is enabled.
#
# Possible values:
#
# * A valid URL string of the attestation server, or an empty string.
#
# Related options:
#
# * attestation_server
# * attestation_server_ca_file
# * attestation_port
# * attestation_auth_blob
# * attestation_auth_timeout
# * attestation_insecure_ssl
#  (string value)
# This option is deprecated for removal since Pike.
# Its value may be silently ignored in the future.
# Reason: Incomplete filter
#attestation_api_url = /OpenAttestationWebServices/V1.0

# DEPRECATED:
# Attestation servers require a specific blob that is used to authenticate. The
# content and format of the blob are determined by the particular attestation
# server being used. There is no default value; you must supply the value as
# specified by your attestation service. See the `attestation_server` help text
# for more information about host verification.
#
# This option is only used by the FilterScheduler and its subclasses; if you use
# a different scheduler, this option has no effect. Also note that this setting
# only affects scheduling if the 'TrustedFilter' filter is enabled.
#
# Possible values:
#
# * A string containing the specific blob required by the attestation server, or
#   an empty string.
#
# Related options:
#
# * attestation_server
# * attestation_server_ca_file
# * attestation_port
# * attestation_api_url
# * attestation_auth_timeout
# * attestation_insecure_ssl
#  (string value)
# This option is deprecated for removal since Pike.
# Its value may be silently ignored in the future.
# Reason: Incomplete filter
#attestation_auth_blob = <None>

# DEPRECATED:
# This value controls how long a successful attestation is cached. Once this
# period has elapsed, a new attestation request will be made. See the
# `attestation_server` help text for more information about host verification.
#
# This option is only used by the FilterScheduler and its subclasses; if you use
# a different scheduler, this option has no effect. Also note that this setting
# only affects scheduling if the 'TrustedFilter' filter is enabled.
#
# Possible values:
#
# * A integer value, corresponding to the timeout interval for attestations in
#   seconds. Any integer is valid, although setting this to zero or negative
#   values can greatly impact performance when using an attestation service.
#
# Related options:
#
# * attestation_server
# * attestation_server_ca_file
# * attestation_port
# * attestation_api_url
# * attestation_auth_blob
# * attestation_insecure_ssl
#  (integer value)
# Minimum value: 0
# This option is deprecated for removal since Pike.
# Its value may be silently ignored in the future.
# Reason: Incomplete filter
#attestation_auth_timeout = 60

# DEPRECATED:
# When set to True, the SSL certificate verification is skipped for the
# attestation service. See the `attestation_server` help text for more
# information about host verification.
#
# This option is only used by the FilterScheduler and its subclasses; if you use
# a different scheduler, this option has no effect. Also note that this setting
# only affects scheduling if the 'TrustedFilter' filter is enabled.
#
# Related options:
#
# * attestation_server
# * attestation_server_ca_file
# * attestation_port
# * attestation_api_url
# * attestation_auth_blob
# * attestation_auth_timeout
#  (boolean value)
# This option is deprecated for removal since Pike.
# Its value may be silently ignored in the future.
# Reason: Incomplete filter
#attestation_insecure_ssl = false


[upgrade_levels]
#
# upgrade_levels options are used to set version cap for RPC
# messages sent between different nova services.
#
# By default all services send messages using the latest version
# they know about.
#
# The compute upgrade level is an important part of rolling upgrades
# where old and new nova-compute services run side by side.
#
# The other options can largely be ignored, and are only kept to
# help with a possible future backport issue.

#
# From nova.conf
#

#
# Compute RPC API version cap.
#
# By default, we always send messages using the most recent version
# the client knows about.
#
# Where you have old and new compute services running, you should set
# this to the lowest deployed version. This is to guarantee that all
# services never send messages that one of the compute nodes can't
# understand. Note that we only support upgrading from release N to
# release N+1.
#
# Set this option to "auto" if you want to let the compute RPC module
# automatically determine what version to use based on the service
# versions in the deployment.
#
# Possible values:
#
# * By default send the latest version the client knows about
# * 'auto': Automatically determines what version to use based on
#   the service versions in the deployment.
# * A string representing a version number in the format 'N.N';
#   for example, possible values might be '1.12' or '2.0'.
# * An OpenStack release name, in lower case, such as 'mitaka' or
#   'liberty'.
#  (string value)
#compute = <None>

# Cells RPC API version cap (string value)
#cells = <None>

# Intercell RPC API version cap (string value)
#intercell = <None>

# Cert RPC API version cap (string value)
#cert = <None>

# Scheduler RPC API version cap (string value)
#scheduler = <None>

# Conductor RPC API version cap (string value)
#conductor = <None>

# Console RPC API version cap (string value)
#console = <None>

# Consoleauth RPC API version cap (string value)
#consoleauth = <None>

# Network RPC API version cap (string value)
#network = <None>

# Base API RPC API version cap (string value)
#baseapi = <None>


[vendordata_dynamic_auth]
#
# Options within this group control the authentication of the vendordata
# subsystem of the metadata API server (and config drive) with external systems.

#
# From nova.conf
#

# PEM encoded Certificate Authority to use when verifying HTTPs connections.
# (string value)
#cafile = <None>

# PEM encoded client certificate cert file (string value)
#certfile = <None>

# PEM encoded client certificate key file (string value)
#keyfile = <None>

# Verify HTTPS connections. (boolean value)
#insecure = false

# Timeout value for http requests (integer value)
#timeout = <None>

# Authentication type to load (string value)
# Deprecated group/name - [vendordata_dynamic_auth]/auth_plugin
#auth_type = <None>

# Config Section from which to load plugin specific options (string value)
#auth_section = <None>

# Authentication URL (string value)
#auth_url = <None>

# Domain ID to scope to (string value)
#domain_id = <None>

# Domain name to scope to (string value)
#domain_name = <None>

# Project ID to scope to (string value)
#project_id = <None>

# Project name to scope to (string value)
#project_name = <None>

# Domain ID containing project (string value)
#project_domain_id = <None>

# Domain name containing project (string value)
#project_domain_name = <None>

# Trust ID (string value)
#trust_id = <None>

# Optional domain ID to use with v3 and v2 parameters. It will be used for both
# the user and project domain in v3 and ignored in v2 authentication. (string
# value)
#default_domain_id = <None>

# Optional domain name to use with v3 API and v2 parameters. It will be used for
# both the user and project domain in v3 and ignored in v2 authentication.
# (string value)
#default_domain_name = <None>

# User ID (string value)
#user_id = <None>

# Username (string value)
# Deprecated group/name - [vendordata_dynamic_auth]/user_name
#username = <None>

# User's domain id (string value)
#user_domain_id = <None>

# User's domain name (string value)
#user_domain_name = <None>

# User's password (string value)
#password = <None>

# Tenant ID (string value)
#tenant_id = <None>

# Tenant Name (string value)
#tenant_name = <None>


[vmware]
#
# Related options:
# Following options must be set in order to launch VMware-based
# virtual machines.
#
# * compute_driver: Must use vmwareapi.VMwareVCDriver.
# * vmware.host_username
# * vmware.host_password
# * vmware.cluster_name

#
# From nova.conf
#

#
# This option specifies the physical ethernet adapter name for VLAN
# networking.
#
# Set the vlan_interface configuration option to match the ESX host
# interface that handles VLAN-tagged VM traffic.
#
# Possible values:
#
# * Any valid string representing VLAN interface name
#  (string value)
#vlan_interface = vmnic0

#
# This option should be configured only when using the NSX-MH Neutron
# plugin. This is the name of the integration bridge on the ESXi server
# or host. This should not be set for any other Neutron plugin. Hence
# the default value is not set.
#
# Possible values:
#
# * Any valid string representing the name of the integration bridge
#  (string value)
#integration_bridge = <None>

#
# Set this value if affected by an increased network latency causing
# repeated characters when typing in a remote console.
#  (integer value)
# Minimum value: 0
#console_delay_seconds = <None>

#
# Identifies the remote system where the serial port traffic will
# be sent.
#
# This option adds a virtual serial port which sends console output to
# a configurable service URI. At the service URI address there will be
# virtual serial port concentrator that will collect console logs.
# If this is not set, no serial ports will be added to the created VMs.
#
# Possible values:
#
# * Any valid URI
#  (string value)
#serial_port_service_uri = <None>

#
# Identifies a proxy service that provides network access to the
# serial_port_service_uri.
#
# Possible values:
#
# * Any valid URI
#
# Related options:
# This option is ignored if serial_port_service_uri is not specified.
# * serial_port_service_uri
#  (string value)
#serial_port_proxy_uri = <None>

#
# Hostname or IP address for connection to VMware vCenter host. (unknown value)
#host_ip = <None>

# Port for connection to VMware vCenter host. (port value)
# Minimum value: 0
# Maximum value: 65535
#host_port = 443

# Username for connection to VMware vCenter host. (string value)
#host_username = <None>

# Password for connection to VMware vCenter host. (string value)
#host_password = <None>

#
# Specifies the CA bundle file to be used in verifying the vCenter
# server certificate.
#  (string value)
#ca_file = <None>

#
# If true, the vCenter server certificate is not verified. If false,
# then the default CA truststore is used for verification.
#
# Related options:
# * ca_file: This option is ignored if "ca_file" is set.
#  (boolean value)
#insecure = false

# Name of a VMware Cluster ComputeResource. (string value)
#cluster_name = <None>

#
# Regular expression pattern to match the name of datastore.
#
# The datastore_regex setting specifies the datastores to use with
# Compute. For example, datastore_regex="nas.*" selects all the data
# stores that have a name starting with "nas".
#
# NOTE: If no regex is given, it just picks the datastore with the
# most freespace.
#
# Possible values:
#
# * Any matching regular expression to a datastore must be given
#  (string value)
#datastore_regex = <None>

#
# Time interval in seconds to poll remote tasks invoked on
# VMware VC server.
#  (floating point value)
#task_poll_interval = 0.5

#
# Number of times VMware vCenter server API must be retried on connection
# failures, e.g. socket error, etc.
#  (integer value)
# Minimum value: 0
#api_retry_count = 10

#
# This option specifies VNC starting port.
#
# Every VM created by ESX host has an option of enabling VNC client
# for remote connection. Above option 'vnc_port' helps you to set
# default starting port for the VNC client.
#
# Possible values:
#
# * Any valid port number within 5900 -(5900 + vnc_port_total)
#
# Related options:
# Below options should be set to enable VNC client.
# * vnc.enabled = True
# * vnc_port_total
#  (port value)
# Minimum value: 0
# Maximum value: 65535
#vnc_port = 5900

#
# Total number of VNC ports.
#  (integer value)
# Minimum value: 0
#vnc_port_total = 10000

#
# This option enables/disables the use of linked clone.
#
# The ESX hypervisor requires a copy of the VMDK file in order to boot
# up a virtual machine. The compute driver must download the VMDK via
# HTTP from the OpenStack Image service to a datastore that is visible
# to the hypervisor and cache it. Subsequent virtual machines that need
# the VMDK use the cached version and don't have to copy the file again
# from the OpenStack Image service.
#
# If set to false, even with a cached VMDK, there is still a copy
# operation from the cache location to the hypervisor file directory
# in the shared datastore. If set to true, the above copy operation
# is avoided as it creates copy of the virtual machine that shares
# virtual disks with its parent VM.
#  (boolean value)
#use_linked_clone = true

# DEPRECATED:
# This option specifies VIM Service WSDL Location
#
# If vSphere API versions 5.1 and later is being used, this section can
# be ignored. If version is less than 5.1, WSDL files must be hosted
# locally and their location must be specified in the above section.
#
# Optional over-ride to default location for bug work-arounds.
#
# Possible values:
#
# * http://<server>/vimService.wsdl
# * file:///opt/stack/vmware/SDK/wsdl/vim25/vimService.wsdl
#  (string value)
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason: Only vCenter versions earlier than 5.1 require this option and the
# current minimum version is 5.1.
#wsdl_location = <None>

#
# This option enables or disables storage policy based placement
# of instances.
#
# Related options:
#
# * pbm_default_policy
#  (boolean value)
#pbm_enabled = false

#
# This option specifies the PBM service WSDL file location URL.
#
# Setting this will disable storage policy based placement
# of instances.
#
# Possible values:
#
# * Any valid file path
#   e.g file:///opt/SDK/spbm/wsdl/pbmService.wsdl
#  (string value)
#pbm_wsdl_location = <None>

#
# This option specifies the default policy to be used.
#
# If pbm_enabled is set and there is no defined storage policy for the
# specific request, then this policy will be used.
#
# Possible values:
#
# * Any valid storage policy such as VSAN default storage policy
#
# Related options:
#
# * pbm_enabled
#  (string value)
#pbm_default_policy = <None>

#
# This option specifies the limit on the maximum number of objects to
# return in a single result.
#
# A positive value will cause the operation to suspend the retrieval
# when the count of objects reaches the specified limit. The server may
# still limit the count to something less than the configured value.
# Any remaining objects may be retrieved with additional requests.
#  (integer value)
# Minimum value: 0
#maximum_objects = 100

#
# This option adds a prefix to the folder where cached images are stored
#
# This is not the full path - just a folder prefix. This should only be
# used when a datastore cache is shared between compute nodes.
#
# Note: This should only be used when the compute nodes are running on same
# host or they have a shared file system.
#
# Possible values:
#
# * Any string representing the cache prefix to the folder
#  (string value)
#cache_prefix = <None>


[vnc]
#
# Virtual Network Computer (VNC) can be used to provide remote desktop
# console access to instances for tenants and/or administrators.

#
# From nova.conf
#

#
# Enable VNC related features.
#
# Guests will get created with graphical devices to support this. Clients
# (for example Horizon) can then establish a VNC connection to the guest.
#  (boolean value)
# Deprecated group/name - [DEFAULT]/vnc_enabled
#enabled = true

#
# Keymap for VNC.
#
# The keyboard mapping (keymap) determines which keyboard layout a VNC
# session should use by default.
#
# Possible values:
#
# * A keyboard layout which is supported by the underlying hypervisor on
#   this node. This is usually an 'IETF language tag' (for example
#   'en-us').  If you use QEMU as hypervisor, you should find the  list
#   of supported keyboard layouts at ``/usr/share/qemu/keymaps``.
#  (string value)
# Deprecated group/name - [DEFAULT]/vnc_keymap
#keymap = en-us

#
# The IP address or hostname on which an instance should listen to for
# incoming VNC connection requests on this node.
#  (unknown value)
#vncserver_listen = 127.0.0.1

#
# Private, internal IP address or hostname of VNC console proxy.
#
# The VNC proxy is an OpenStack component that enables compute service
# users to access their instances through VNC clients.
#
# This option sets the private address to which proxy clients, such as
# ``nova-xvpvncproxy``, should connect to.
#  (unknown value)
#vncserver_proxyclient_address = 127.0.0.1

#
# Public address of noVNC VNC console proxy.
#
# The VNC proxy is an OpenStack component that enables compute service
# users to access their instances through VNC clients. noVNC provides
# VNC support through a websocket-based client.
#
# This option sets the public base URL to which client systems will
# connect. noVNC clients can use this address to connect to the noVNC
# instance and, by extension, the VNC sessions.
#
# Related options:
#
# * novncproxy_host
# * novncproxy_port
#  (uri value)
#novncproxy_base_url = http://127.0.0.1:6080/vnc_auto.html

#
# IP address or hostname that the XVP VNC console proxy should bind to.
#
# The VNC proxy is an OpenStack component that enables compute service
# users to access their instances through VNC clients. Xen provides
# the Xenserver VNC Proxy, or XVP, as an alternative to the
# websocket-based noVNC proxy used by Libvirt. In contrast to noVNC,
# XVP clients are Java-based.
#
# This option sets the private address to which the XVP VNC console proxy
# service should bind to.
#
# Related options:
#
# * xvpvncproxy_port
# * xvpvncproxy_base_url
#  (unknown value)
#xvpvncproxy_host = 0.0.0.0

#
# Port that the XVP VNC console proxy should bind to.
#
# The VNC proxy is an OpenStack component that enables compute service
# users to access their instances through VNC clients. Xen provides
# the Xenserver VNC Proxy, or XVP, as an alternative to the
# websocket-based noVNC proxy used by Libvirt. In contrast to noVNC,
# XVP clients are Java-based.
#
# This option sets the private port to which the XVP VNC console proxy
# service should bind to.
#
# Related options:
#
# * xvpvncproxy_host
# * xvpvncproxy_base_url
#  (port value)
# Minimum value: 0
# Maximum value: 65535
#xvpvncproxy_port = 6081

#
# Public URL address of XVP VNC console proxy.
#
# The VNC proxy is an OpenStack component that enables compute service
# users to access their instances through VNC clients. Xen provides
# the Xenserver VNC Proxy, or XVP, as an alternative to the
# websocket-based noVNC proxy used by Libvirt. In contrast to noVNC,
# XVP clients are Java-based.
#
# This option sets the public base URL to which client systems will
# connect. XVP clients can use this address to connect to the XVP
# instance and, by extension, the VNC sessions.
#
# Related options:
#
# * xvpvncproxy_host
# * xvpvncproxy_port
#  (uri value)
#xvpvncproxy_base_url = http://127.0.0.1:6081/console

#
# IP address that the noVNC console proxy should bind to.
#
# The VNC proxy is an OpenStack component that enables compute service
# users to access their instances through VNC clients. noVNC provides
# VNC support through a websocket-based client.
#
# This option sets the private address to which the noVNC console proxy
# service should bind to.
#
# Related options:
#
# * novncproxy_port
# * novncproxy_base_url
#  (string value)
#novncproxy_host = 0.0.0.0

#
# Port that the noVNC console proxy should bind to.
#
# The VNC proxy is an OpenStack component that enables compute service
# users to access their instances through VNC clients. noVNC provides
# VNC support through a websocket-based client.
#
# This option sets the private port to which the noVNC console proxy
# service should bind to.
#
# Related options:
#
# * novncproxy_host
# * novncproxy_base_url
#  (port value)
# Minimum value: 0
# Maximum value: 65535
#novncproxy_port = 6080


[workarounds]
#
# A collection of workarounds used to mitigate bugs or issues found in system
# tools (e.g. Libvirt or QEMU) or Nova itself under certain conditions. These
# should only be enabled in exceptional circumstances. All options are linked
# against bug IDs, where more information on the issue can be found.

#
# From nova.conf
#

#
# Use sudo instead of rootwrap.
#
# Allow fallback to sudo for performance reasons.
#
# For more information, refer to the bug report:
#
#   https://bugs.launchpad.net/nova/+bug/1415106
#
# Possible values:
#
# * True: Use sudo instead of rootwrap
# * False: Use rootwrap as usual
#
# Interdependencies to other options:
#
# * Any options that affect 'rootwrap' will be ignored.
#  (boolean value)
#disable_rootwrap = false

#
# Disable live snapshots when using the libvirt driver.
#
# Live snapshots allow the snapshot of the disk to happen without an
# interruption to the guest, using coordination with a guest agent to
# quiesce the filesystem.
#
# When using libvirt 1.2.2 live snapshots fail intermittently under load
# (likely related to concurrent libvirt/qemu operations). This config
# option provides a mechanism to disable live snapshot, in favor of cold
# snapshot, while this is resolved. Cold snapshot causes an instance
# outage while the guest is going through the snapshotting process.
#
# For more information, refer to the bug report:
#
#   https://bugs.launchpad.net/nova/+bug/1334398
#
# Possible values:
#
# * True: Live snapshot is disabled when using libvirt
# * False: Live snapshots are always used when snapshotting (as long as
#   there is a new enough libvirt and the backend storage supports it)
#  (boolean value)
#disable_libvirt_livesnapshot = true

#
# Enable handling of events emitted from compute drivers.
#
# Many compute drivers emit lifecycle events, which are events that occur when,
# for example, an instance is starting or stopping. If the instance is going
# through task state changes due to an API operation, like resize, the events
# are ignored.
#
# This is an advanced feature which allows the hypervisor to signal to the
# compute service that an unexpected state change has occurred in an instance
# and that the instance can be shutdown automatically. Unfortunately, this can
# race in some conditions, for example in reboot operations or when the compute
# service or when host is rebooted (planned or due to an outage). If such races
# are common, then it is advisable to disable this feature.
#
# Care should be taken when this feature is disabled and
# 'sync_power_state_interval' is set to a negative value. In this case, any
# instances that get out of sync between the hypervisor and the Nova database
# will have to be synchronized manually.
#
# For more information, refer to the bug report:
#
#   https://bugs.launchpad.net/bugs/1444630
#
# Interdependencies to other options:
#
# * If ``sync_power_state_interval`` is negative and this feature is disabled,
#   then instances that get out of sync between the hypervisor and the Nova
#   database will have to be synchronized manually.
#  (boolean value)
#handle_virt_lifecycle_events = true

#
# Disable the server group policy check upcall in compute.
#
# In order to detect races with server group affinity policy, the compute
# service attempts to validate that the policy was not violated by the
# scheduler. It does this by making an upcall to the API database to list
# the instances in the server group for one that it is booting, which violates
# our api/cell isolation goals. Eventually this will be solved by proper
# affinity
# guarantees in the scheduler and placement service, but until then, this late
# check is needed to ensure proper affinity policy.
#
# Operators that desire api/cell isolation over this check should
# enable this flag, which will avoid making that upcall from compute.
#  (boolean value)
#disable_group_policy_check_upcall = false


[wsgi]
#
# Options under this group are used to configure WSGI (Web Server Gateway
# Interface). WSGI is used to serve API requests.

#
# From nova.conf
#

#
# This option represents a file name for the paste.deploy config for nova-api.
#
# Possible values:
#
# * A string representing file name for the paste.deploy config.
#  (string value)
#api_paste_config = api-paste.ini

#
# It represents a python format string that is used as the template to generate
# log lines. The following values can be formatted into it: client_ip,
# date_time, request_line, status_code, body_length, wall_seconds.
#
# This option is used for building custom request loglines.
#
# Possible values:
#
# * '%(client_ip)s "%(request_line)s" status: %(status_code)s'
#   'len: %(body_length)s time: %(wall_seconds).7f' (default)
# * Any formatted string formed by specific values.
#  (string value)
#wsgi_log_format = %(client_ip)s "%(request_line)s" status: %(status_code)s len: %(body_length)s time: %(wall_seconds).7f

#
# This option specifies the HTTP header used to determine the protocol scheme
# for the original request, even if it was removed by a SSL terminating proxy.
#
# Possible values:
#
# * None (default) - the request scheme is not influenced by any HTTP headers
# * Valid HTTP header, like HTTP_X_FORWARDED_PROTO
#
# WARNING: Do not set this unless you know what you are doing.
#
# Make sure ALL of the following are true before setting this (assuming the
# values from the example above):
# * Your API is behind a proxy.
# * Your proxy strips the X-Forwarded-Proto header from all incoming requests.
#   In other words, if end users include that header in their requests, the
# proxy
#   will discard it.
# * Your proxy sets the X-Forwarded-Proto header and sends it to API, but only
#   for requests that originally come in via HTTPS.
#
# If any of those are not true, you should keep this setting set to None.
#
#  (string value)
#secure_proxy_ssl_header = <None>

#
# This option allows setting path to the CA certificate file that should be used
# to verify connecting clients.
#
# Possible values:
#
# * String representing path to the CA certificate file.
#
# Related options:
#
# * enabled_ssl_apis
#  (string value)
#ssl_ca_file = <None>

#
# This option allows setting path to the SSL certificate of API server.
#
# Possible values:
#
# * String representing path to the SSL certificate.
#
# Related options:
#
# * enabled_ssl_apis
#  (string value)
#ssl_cert_file = <None>

#
# This option specifies the path to the file where SSL private key of API
# server is stored when SSL is in effect.
#
# Possible values:
#
# * String representing path to the SSL private key.
#
# Related options:
#
# * enabled_ssl_apis
#  (string value)
#ssl_key_file = <None>

#
# This option sets the value of TCP_KEEPIDLE in seconds for each server socket.
# It specifies the duration of time to keep connection active. TCP generates a
# KEEPALIVE transmission for an application that requests to keep connection
# active. Not supported on OS X.
#
# Related options:
#
# * keep_alive
#  (integer value)
# Minimum value: 0
#tcp_keepidle = 600

#
# This option specifies the size of the pool of greenthreads used by wsgi.
# It is possible to limit the number of concurrent connections using this
# option.
#  (integer value)
# Minimum value: 0
# Deprecated group/name - [DEFAULT]/wsgi_default_pool_size
#default_pool_size = 1000

#
# This option specifies the maximum line size of message headers to be accepted.
# max_header_line may need to be increased when using large tokens (typically
# those generated by the Keystone v3 API with big service catalogs).
#
# Since TCP is a stream based protocol, in order to reuse a connection, the HTTP
# has to have a way to indicate the end of the previous response and beginning
# of the next. Hence, in a keep_alive case, all messages must have a
# self-defined message length.
#  (integer value)
# Minimum value: 0
#max_header_line = 16384

#
# This option allows using the same TCP connection to send and receive multiple
# HTTP requests/responses, as opposed to opening a new one for every single
# request/response pair. HTTP keep-alive indicates HTTP connection reuse.
#
# Possible values:
#
# * True : reuse HTTP connection.
# * False : closes the client socket connection explicitly.
#
# Related options:
#
# * tcp_keepidle
#  (boolean value)
# Deprecated group/name - [DEFAULT]/wsgi_keep_alive
#keep_alive = true

#
# This option specifies the timeout for client connections' socket operations.
# If an incoming connection is idle for this number of seconds it will be
# closed. It indicates timeout on individual read/writes on the socket
# connection. To wait forever set to 0.
#  (integer value)
# Minimum value: 0
#client_socket_timeout = 900


[xenserver]
#
# XenServer options are used when the compute_driver is set to use
# XenServer (compute_driver=xenapi.XenAPIDriver).
#
# Must specify connection_url, connection_password and ovs_integration_bridge to
# use compute_driver=xenapi.XenAPIDriver.

#
# From nova.conf
#

#
# Number of seconds to wait for agent's reply to a request.
#
# Nova configures/performs certain administrative actions on a server with the
# help of an agent that's installed on the server. The communication between
# Nova and the agent is achieved via sharing messages, called records, over
# xenstore, a shared storage across all the domains on a Xenserver host.
# Operations performed by the agent on behalf of nova are: 'version','
# key_init',
# 'password','resetnetwork','inject_file', and 'agentupdate'.
#
# To perform one of the above operations, the xapi 'agent' plugin writes the
# command and its associated parameters to a certain location known to the
# domain
# and awaits response. On being notified of the message, the agent performs
# appropriate actions on the server and writes the result back to xenstore. This
# result is then read by the xapi 'agent' plugin to determine the
# success/failure
# of the operation.
#
# This config option determines how long the xapi 'agent' plugin shall wait to
# read the response off of xenstore for a given request/command. If the agent on
# the instance fails to write the result in this time period, the operation is
# considered to have timed out.
#
# Related options:
#
# * ``agent_version_timeout``
# * ``agent_resetnetwork_timeout``
#
#  (integer value)
# Minimum value: 0
#agent_timeout = 30

#
# Number of seconds to wait for agent't reply to version request.
#
# This indicates the amount of time xapi 'agent' plugin waits for the agent to
# respond to the 'version' request specifically. The generic timeout for agent
# communication ``agent_timeout`` is ignored in this case.
#
# During the build process the 'version' request is used to determine if the
# agent is available/operational to perform other requests such as
# 'resetnetwork', 'password', 'key_init' and 'inject_file'. If the 'version'
# call
# fails, the other configuration is skipped. So, this configuration option can
# also be interpreted as time in which agent is expected to be fully
# operational.
#  (integer value)
# Minimum value: 0
#agent_version_timeout = 300

#
# Number of seconds to wait for agent's reply to resetnetwork
# request.
#
# This indicates the amount of time xapi 'agent' plugin waits for the agent to
# respond to the 'resetnetwork' request specifically. The generic timeout for
# agent communication ``agent_timeout`` is ignored in this case.
#  (integer value)
# Minimum value: 0
#agent_resetnetwork_timeout = 60

#
# Path to locate guest agent on the server.
#
# Specifies the path in which the XenAPI guest agent should be located. If the
# agent is present, network configuration is not injected into the image.
#
# Related options:
#
# For this option to have an effect:
# * ``flat_injected`` should be set to ``True``
# * ``compute_driver`` should be set to ``xenapi.XenAPIDriver``
#
#  (string value)
#agent_path = usr/sbin/xe-update-networking

#
# Disables the use of XenAPI agent.
#
# This configuration option suggests whether the use of agent should be enabled
# or not regardless of what image properties are present. Image properties have
# an effect only when this is set to ``True``. Read description of config option
# ``use_agent_default`` for more information.
#
# Related options:
#
# * ``use_agent_default``
#
#  (boolean value)
#disable_agent = false

#
# Whether or not to use the agent by default when its usage is enabled but not
# indicated by the image.
#
# The use of XenAPI agent can be disabled altogether using the configuration
# option ``disable_agent``. However, if it is not disabled, the use of an agent
# can still be controlled by the image in use through one of its properties,
# ``xenapi_use_agent``. If this property is either not present or specified
# incorrectly on the image, the use of agent is determined by this configuration
# option.
#
# Note that if this configuration is set to ``True`` when the agent is not
# present, the boot times will increase significantly.
#
# Related options:
#
# * ``disable_agent``
#
#  (boolean value)
#use_agent_default = false

# Timeout in seconds for XenAPI login. (integer value)
# Minimum value: 0
#login_timeout = 10

#
# Maximum number of concurrent XenAPI connections.
#
# In nova, multiple XenAPI requests can happen at a time.
# Configuring this option will parallelize access to the XenAPI
# session, which allows you to make concurrent XenAPI connections.
#  (integer value)
# Minimum value: 1
#connection_concurrent = 5

# DEPRECATED:
# Base URL for torrent files; must contain a slash character (see RFC 1808,
# step 6).
#  (string value)
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# The torrent feature has not been tested nor maintained, and as such is being
# removed.
#torrent_base_url = <None>

# DEPRECATED: Probability that peer will become a seeder (1.0 = 100%) (floating
# point value)
# Minimum value: 0
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# The torrent feature has not been tested nor maintained, and as such is being
# removed.
#torrent_seed_chance = 1.0

# DEPRECATED:
# Number of seconds after downloading an image via BitTorrent that it should
# be seeded for other peers.'
#  (integer value)
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# The torrent feature has not been tested nor maintained, and as such is being
# removed.
#torrent_seed_duration = 3600

# DEPRECATED:
# Cached torrent files not accessed within this number of seconds can be reaped.
#  (integer value)
# Minimum value: 0
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# The torrent feature has not been tested nor maintained, and as such is being
# removed.
#torrent_max_last_accessed = 86400

# DEPRECATED: Beginning of port range to listen on (port value)
# Minimum value: 0
# Maximum value: 65535
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# The torrent feature has not been tested nor maintained, and as such is being
# removed.
#torrent_listen_port_start = 6881

# DEPRECATED: End of port range to listen on (port value)
# Minimum value: 0
# Maximum value: 65535
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# The torrent feature has not been tested nor maintained, and as such is being
# removed.
#torrent_listen_port_end = 6891

# DEPRECATED:
# Number of seconds a download can remain at the same progress percentage w/o
# being considered a stall.
#  (integer value)
# Minimum value: 0
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# The torrent feature has not been tested nor maintained, and as such is being
# removed.
#torrent_download_stall_cutoff = 600

# DEPRECATED:
# Maximum number of seeder processes to run concurrently within a given dom0
# (-1 = no limit).
#  (integer value)
# Minimum value: -1
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# The torrent feature has not been tested nor maintained, and as such is being
# removed.
#torrent_max_seeder_processes_per_host = 1

#
# Cache glance images locally.
#
# The value for this option must be chosen from the choices listed
# here. Configuring a value other than these will default to 'all'.
#
# Note: There is nothing that deletes these images.
#
# Possible values:
#
# * `all`: will cache all images.
# * `some`: will only cache images that have the
#   image_property `cache_in_nova=True`.
# * `none`: turns off caching entirely.
#  (string value)
# Allowed values: all, some, none
#cache_images = all

#
# Compression level for images.
#
# By setting this option we can configure the gzip compression level.
# This option sets GZIP environment variable before spawning tar -cz
# to force the compression level. It defaults to none, which means the
# GZIP environment variable is not set and the default (usually -6)
# is used.
#
# Possible values:
#
# * Range is 1-9, e.g., 9 for gzip -9, 9 being most
#   compressed but most CPU intensive on dom0.
# * Any values out of this range will default to None.
#  (integer value)
# Minimum value: 1
# Maximum value: 9
#image_compression_level = <None>

# Default OS type used when uploading an image to glance (string value)
#default_os_type = linux

# Time in secs to wait for a block device to be created (integer value)
# Minimum value: 1
#block_device_creation_timeout = 10

#
# Maximum size in bytes of kernel or ramdisk images.
#
# Specifying the maximum size of kernel or ramdisk will avoid copying
# large files to dom0 and fill up /boot/guest.
#  (integer value)
#max_kernel_ramdisk_size = 16777216

#
# Filter for finding the SR to be used to install guest instances on.
#
# Possible values:
#
# * To use the Local Storage in default XenServer/XCP installations
#   set this flag to other-config:i18n-key=local-storage.
# * To select an SR with a different matching criteria, you could
#   set it to other-config:my_favorite_sr=true.
# * To fall back on the Default SR, as displayed by XenCenter,
#   set this flag to: default-sr:true.
#  (string value)
#sr_matching_filter = default-sr:true

#
# Whether to use sparse_copy for copying data on a resize down.
# (False will use standard dd). This speeds up resizes down
# considerably since large runs of zeros won't have to be rsynced.
#  (boolean value)
#sparse_copy = true

#
# Maximum number of retries to unplug VBD.
# If set to 0, should try once, no retries.
#  (integer value)
# Minimum value: 0
#num_vbd_unplug_retries = 10

#
# Whether or not to download images via Bit Torrent.
#
# The value for this option must be chosen from the choices listed
# here. Configuring a value other than these will default to 'none'.
#
# Possible values:
#
# * `all`: will download all images.
# * `some`: will only download images that have the image_property
#           `bittorrent=true`.
# * `none`: will turnoff downloading images via Bit Torrent.
#  (string value)
# Allowed values: all, some, none
#torrent_images = none

#
# Name of network to use for booting iPXE ISOs.
#
# An iPXE ISO is a specially crafted ISO which supports iPXE booting.
# This feature gives a means to roll your own image.
#
# By default this option is not set. Enable this option to
# boot an iPXE ISO.
#
# Related Options:
#
# * `ipxe_boot_menu_url`
# * `ipxe_mkisofs_cmd`
#  (string value)
#ipxe_network_name = <None>

#
# URL to the iPXE boot menu.
#
# An iPXE ISO is a specially crafted ISO which supports iPXE booting.
# This feature gives a means to roll your own image.
#
# By default this option is not set. Enable this option to
# boot an iPXE ISO.
#
# Related Options:
#
# * `ipxe_network_name`
# * `ipxe_mkisofs_cmd`
#  (string value)
#ipxe_boot_menu_url = <None>

#
# Name and optionally path of the tool used for ISO image creation.
#
# An iPXE ISO is a specially crafted ISO which supports iPXE booting.
# This feature gives a means to roll your own image.
#
# Note: By default `mkisofs` is not present in the Dom0, so the
# package can either be manually added to Dom0 or include the
# `mkisofs` binary in the image itself.
#
# Related Options:
#
# * `ipxe_network_name`
# * `ipxe_boot_menu_url`
#  (string value)
#ipxe_mkisofs_cmd = mkisofs

#
# URL for connection to XenServer/Xen Cloud Platform. A special value
# of unix://local can be used to connect to the local unix socket.
#
# Possible values:
#
# * Any string that represents a URL. The connection_url is
#   generally the management network IP address of the XenServer.
# * This option must be set if you chose the XenServer driver.
#  (string value)
#connection_url = <None>

# Username for connection to XenServer/Xen Cloud Platform (string value)
#connection_username = root

# Password for connection to XenServer/Xen Cloud Platform (string value)
#connection_password = <None>

#
# The interval used for polling of coalescing vhds.
#
# This is the interval after which the task of coalesce VHD is
# performed, until it reaches the max attempts that is set by
# vhd_coalesce_max_attempts.
#
# Related options:
#
# * `vhd_coalesce_max_attempts`
#  (floating point value)
# Minimum value: 0
#vhd_coalesce_poll_interval = 5.0

#
# Ensure compute service is running on host XenAPI connects to.
# This option must be set to false if the 'independent_compute'
# option is set to true.
#
# Possible values:
#
# * Setting this option to true will make sure that compute service
#   is running on the same host that is specified by connection_url.
# * Setting this option to false, doesn't perform the check.
#
# Related options:
#
# * `independent_compute`
#  (boolean value)
#check_host = true

#
# Max number of times to poll for VHD to coalesce.
#
# This option determines the maximum number of attempts that can be
# made for coalescing the VHD before giving up.
#
# Related opitons:
#
# * `vhd_coalesce_poll_interval`
#  (integer value)
# Minimum value: 0
#vhd_coalesce_max_attempts = 20

# Base path to the storage repository on the XenServer host. (string value)
#sr_base_path = /var/run/sr-mount

#
# The iSCSI Target Host.
#
# This option represents the hostname or ip of the iSCSI Target.
# If the target host is not present in the connection information from
# the volume provider then the value from this option is taken.
#
# Possible values:
#
# * Any string that represents hostname/ip of Target.
#  (unknown value)
#target_host = <None>

#
# The iSCSI Target Port.
#
# This option represents the port of the iSCSI Target. If the
# target port is not present in the connection information from the
# volume provider then the value from this option is taken.
#  (port value)
# Minimum value: 0
# Maximum value: 65535
#target_port = 3260

# DEPRECATED:
# Used to enable the remapping of VBD dev.
# (Works around an issue in Ubuntu Maverick)
#  (boolean value)
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# This option provided a workaround for issues in Ubuntu Maverick, which
# was released in April 2010 and was dropped from support in April 2012.
# There's no reason to continue supporting this option.
#remap_vbd_dev = false

#
# Specify prefix to remap VBD dev to (ex. /dev/xvdb -> /dev/sdb).
#
# Related options:
#
# * If `remap_vbd_dev` is set to False this option has no impact.
#  (string value)
#remap_vbd_dev_prefix = sd

#
# Used to prevent attempts to attach VBDs locally, so Nova can
# be run in a VM on a different host.
#
# Related options:
#
# * ``CONF.flat_injected`` (Must be False)
# * ``CONF.xenserver.check_host`` (Must be False)
# * ``CONF.default_ephemeral_format`` (Must be unset or 'ext3')
# * Joining host aggregates (will error if attempted)
# * Swap disks for Windows VMs (will error if attempted)
# * Nova-based auto_configure_disk (will error if attempted)
#  (boolean value)
#independent_compute = false

#
# Wait time for instances to go to running state.
#
# Provide an integer value representing time in seconds to set the
# wait time for an instance to go to running state.
#
# When a request to create an instance is received by nova-api and
# communicated to nova-compute, the creation of the instance occurs
# through interaction with Xen via XenAPI in the compute node. Once
# the node on which the instance(s) are to be launched is decided by
# nova-schedule and the launch is triggered, a certain amount of wait
# time is involved until the instance(s) can become available and
# 'running'. This wait time is defined by running_timeout. If the
# instances do not go to running state within this specified wait
# time, the launch expires and the instance(s) are set to 'error'
# state.
#  (integer value)
# Minimum value: 0
#running_timeout = 60

# DEPRECATED:
# The XenAPI VIF driver using XenServer Network APIs.
#
# Provide a string value representing the VIF XenAPI vif driver to use for
# plugging virtual network interfaces.
#
# Xen configuration uses bridging within the backend domain to allow
# all VMs to appear on the network as individual hosts. Bridge
# interfaces are used to create a XenServer VLAN network in which
# the VIFs for the VM instances are plugged. If no VIF bridge driver
# is plugged, the bridge is not made available. This configuration
# option takes in a value for the VIF driver.
#
# Possible values:
#
# * nova.virt.xenapi.vif.XenAPIOpenVswitchDriver (default)
# * nova.virt.xenapi.vif.XenAPIBridgeDriver (deprecated)
#
# Related options:
#
# * ``vlan_interface``
# * ``ovs_integration_bridge``
#  (string value)
# This option is deprecated for removal since 15.0.0.
# Its value may be silently ignored in the future.
# Reason:
# There are only two in-tree vif drivers for XenServer. XenAPIBridgeDriver is
# for
# nova-network which is deprecated and XenAPIOpenVswitchDriver is for Neutron
# which is the default configuration for Nova since the 15.0.0 Ocata release. In
# the future the "use_neutron" configuration option will be used to determine
# which vif driver to use.
#vif_driver = nova.virt.xenapi.vif.XenAPIOpenVswitchDriver

#
# Dom0 plugin driver used to handle image uploads.
#
# Provide a string value representing a plugin driver required to
# handle the image uploading to GlanceStore.
#
# Images, and snapshots from XenServer need to be uploaded to the data
# store for use. image_upload_handler takes in a value for the Dom0
# plugin driver. This driver is then called to uplaod images to the
# GlanceStore.
#  (string value)
#image_upload_handler = nova.virt.xenapi.image.glance.GlanceStore

#
# Number of seconds to wait for SR to settle if the VDI
# does not exist when first introduced.
#
# Some SRs, particularly iSCSI connections are slow to see the VDIs
# right after they got introduced. Setting this option to a
# time interval will make the SR to wait for that time period
# before raising VDI not found exception.
#  (integer value)
# Minimum value: 0
#introduce_vdi_retry_wait = 20

#
# The name of the integration Bridge that is used with xenapi
# when connecting with Open vSwitch.
#
# Note: The value of this config option is dependent on the
# environment, therefore this configuration value must be set
# accordingly if you are using XenAPI.
#
# Possible values:
#
# * Any string that represents a bridge name.
#  (string value)
#ovs_integration_bridge = <None>

#
# When adding new host to a pool, this will append a --force flag to the
# command, forcing hosts to join a pool, even if they have different CPUs.
#
# Since XenServer version 5.6 it is possible to create a pool of hosts that have
# different CPU capabilities. To accommodate CPU differences, XenServer limited
# features it uses to determine CPU compatibility to only the ones that are
# exposed by CPU and support for CPU masking was added.
# Despite this effort to level differences between CPUs, it is still possible
# that adding new host will fail, thus option to force join was introduced.
#  (boolean value)
#use_join_force = true

#
# Publicly visible name for this console host.
#
# Possible values:
#
# * Current hostname (default) or any string representing hostname.
#  (string value)
#console_public_hostname = <current_hostname>


[xvp]
#
# Configuration options for XVP.
#
# xvp (Xen VNC Proxy) is a proxy server providing password-protected VNC-based
# access to the consoles of virtual machines hosted on Citrix XenServer.

#
# From nova.conf
#

# XVP conf template (string value)
#console_xvp_conf_template = $pybasedir/nova/console/xvp.conf.template

# Generated XVP conf file (string value)
#console_xvp_conf = /etc/xvp.conf

# XVP master process pid file (string value)
#console_xvp_pid = /var/run/xvp.pid

# XVP log file (string value)
#console_xvp_log = /var/log/xvp.log

# Port for XVP to multiplex VNC connections on (port value)
# Minimum value: 0
# Maximum value: 65535
#console_xvp_multiplex_port = 5900