dhcp_agent.ini

dhcp_agent.ini

DEFAULT

debug
Type:boolean
Default:false
Mutable:This option can be changed without restarting.

If set to true, the logging level will be set to DEBUG instead of the default INFO level.

log_config_append
Type:string
Default:<None>
Mutable:This option can be changed without restarting.

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).

Deprecated Variations
Group Name
DEFAULT log-config
DEFAULT log_config
log_date_format
Type:string
Default:%Y-%m-%d %H:%M:%S

Defines the format string for %(asctime)s in log records. Default: the value above . This option is ignored if log_config_append is set.

log_file
Type:string
Default:<None>

(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.

Deprecated Variations
Group Name
DEFAULT logfile
log_dir
Type:string
Default:<None>

(Optional) The base directory used for relative log_file paths. This option is ignored if log_config_append is set.

Deprecated Variations
Group Name
DEFAULT logdir
watch_log_file
Type:boolean
Default:false

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.

use_syslog
Type:boolean
Default: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.

use_journal
Type:boolean
Default: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.

syslog_log_facility
Type:string
Default:LOG_USER

Syslog facility to receive log lines. This option is ignored if log_config_append is set.

use_json
Type:boolean
Default:false

Use JSON formatting for logging. This option is ignored if log_config_append is set.

use_stderr
Type:boolean
Default:false

Log output to standard error. This option is ignored if log_config_append is set.

logging_context_format_string
Type:string
Default:%(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 with context.

logging_default_format_string
Type:string
Default:%(asctime)s.%(msecs)03d %(process)d %(levelname)s %(name)s [-] %(instance)s%(message)s

Format string to use for log messages when context is undefined.

logging_debug_format_suffix
Type:string
Default:%(funcName)s %(pathname)s:%(lineno)d

Additional data to append to log message when logging level for the message is DEBUG.

logging_exception_prefix
Type:string
Default:%(asctime)s.%(msecs)03d %(process)d ERROR %(name)s %(instance)s

Prefix each line of exception output with this format.

logging_user_identity_format
Type:string
Default:%(user)s %(tenant)s %(domain)s %(user_domain)s %(project_domain)s

Defines the format string for %(user_identity)s that is used in logging_context_format_string.

default_log_levels
Type:list
Default: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

List of package logging levels in logger=LEVEL pairs. This option is ignored if log_config_append is set.

publish_errors
Type:boolean
Default:false

Enables or disables publication of error events.

instance_format
Type:string
Default:"[instance: %(uuid)s] "

The format for an instance that is passed with the log message.

instance_uuid_format
Type:string
Default:"[instance: %(uuid)s] "

The format for an instance UUID that is passed with the log message.

rate_limit_interval
Type:integer
Default:0

Interval, number of seconds, of log rate limiting.

rate_limit_burst
Type:integer
Default:0

Maximum number of logged messages per rate_limit_interval.

rate_limit_except_level
Type:string
Default:CRITICAL

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.

fatal_deprecations
Type:boolean
Default:false

Enables or disables fatal status of deprecations.

resync_interval
Type:integer
Default:5

The DHCP agent will resync its state with Neutron to recover from any transient notification or RPC errors. The interval is maximum number of seconds between attempts. The resync can be done more often based on the events triggered.

resync_throttle
Type:integer
Default:1

Throttle the number of resync state events between the local DHCP state and Neutron to only once per ‘resync_throttle’ seconds. The value of throttle introduces a minimum interval between resync state events. Otherwise the resync may end up in a busy-loop. The value must be less than resync_interval.

dhcp_driver
Type:string
Default:neutron.agent.linux.dhcp.Dnsmasq

The driver used to manage the DHCP server.

enable_isolated_metadata
Type:boolean
Default:false

The DHCP server can assist with providing metadata support on isolated networks. Setting this value to True will cause the DHCP server to append specific host routes to the DHCP request. The metadata service will only be activated when the subnet does not contain any router port. The guest instance must be configured to request host routes via DHCP (Option 121). This option doesn’t have any effect when force_metadata is set to True.

force_metadata
Type:boolean
Default:false

In some cases the Neutron router is not present to provide the metadata IP but the DHCP server can be used to provide this info. Setting this value will force the DHCP server to append specific host routes to the DHCP request. If this option is set, then the metadata service will be activated for all the networks.

enable_metadata_network
Type:boolean
Default:false

Allows for serving metadata requests coming from a dedicated metadata access network whose CIDR is 169.254.169.254/16 (or larger prefix), and is connected to a Neutron router from which the VMs send metadata:1 request. In this case DHCP Option 121 will not be injected in VMs, as they will be able to reach 169.254.169.254 through a router. This option requires enable_isolated_metadata = True.

num_sync_threads
Type:integer
Default:4

Number of threads to use during sync process. Should not exceed connection pool size configured on server.

dhcp_confs
Type:string
Default:$state_path/dhcp

Location to store DHCP server config files.

dnsmasq_config_file
Type:string
Default:''

Override the default dnsmasq settings with this file.

dnsmasq_dns_servers
Type:list
Default:''

Comma-separated list of the DNS servers which will be used as forwarders.

dnsmasq_base_log_dir
Type:string
Default:<None>

Base log dir for dnsmasq logging. The log contains DHCP and DNS log information and is useful for debugging issues with either DHCP or DNS. If this section is null, disable dnsmasq log.

dnsmasq_local_resolv
Type:boolean
Default:false

Enables the dnsmasq service to provide name resolution for instances via DNS resolvers on the host running the DHCP agent. Effectively removes the ‘–no-resolv’ option from the dnsmasq process arguments. Adding custom DNS resolvers to the ‘dnsmasq_dns_servers’ option disables this feature.

dnsmasq_lease_max
Type:integer
Default:16777216

Limit number of leases to prevent a denial-of-service.

dhcp_broadcast_reply
Type:boolean
Default:false

Use broadcast in DHCP replies.

dhcp_renewal_time
Type:integer
Default:0

DHCP renewal time T1 (in seconds). If set to 0, it will default to half of the lease time.

dhcp_rebinding_time
Type:integer
Default:0

DHCP rebinding time T2 (in seconds). If set to 0, it will default to 7/8 of the lease time.

ovs_integration_bridge
Type:string
Default:br-int

Name of Open vSwitch bridge to use

ovs_use_veth
Type:boolean
Default:false

Uses veth for an OVS interface or not. Support kernels with limited namespace support (e.g. RHEL 6.5) and rate limiting on router’s gateway port so long as ovs_use_veth is set to True.

interface_driver
Type:string
Default:<None>

The driver used to manage the virtual interface.

agent

report_interval
Type:floating point
Default:30

Seconds between nodes reporting state to server; should be less than agent_down_time, best if it is half or less than agent_down_time.

log_agent_heartbeats
Type:boolean
Default:false

Log agent heartbeats

availability_zone
Type:string
Default:nova

Availability zone of this node

ovs

ovsdb_connection
Type:string
Default:tcp:127.0.0.1:6640

The connection string for the OVSDB backend. Will be used by ovsdb-client when monitoring and used for the all ovsdb commands when native ovsdb_interface is enabled

ssl_key_file
Type:string
Default:<None>

The SSL private key file to use when interacting with OVSDB. Required when using an “ssl:” prefixed ovsdb_connection

ssl_cert_file
Type:string
Default:<None>

The SSL certificate file to use when interacting with OVSDB. Required when using an “ssl:” prefixed ovsdb_connection

ssl_ca_cert_file
Type:string
Default:<None>

The Certificate Authority (CA) certificate to use when interacting with OVSDB. Required when using an “ssl:” prefixed ovsdb_connection

ovsdb_debug
Type:boolean
Default:false

Enable OVSDB debug logs

ovsdb_timeout
Type:integer
Default:10

Timeout in seconds for ovsdb commands. If the timeout expires, ovsdb commands will fail with ALARMCLOCK error.

bridge_mac_table_size
Type:integer
Default:50000

The maximum number of MAC addresses to learn on a bridge managed by the Neutron OVS agent. Values outside a reasonable range (10 to 1,000,000) might be overridden by Open vSwitch according to the documentation.

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