Configuration options

This section provides a list of the configuration options that can be set in the sahara configuration file.

DEFAULT

run_external_periodic_tasks
Type

boolean

Default

true

Some periodic tasks can be run in a separate process. Should we run them here?

api_paste_config
Type

string

Default

api-paste.ini

File name for the paste.deploy config for api service

wsgi_log_format
Type

string

Default

%(client_ip)s "%(request_line)s" status: %(status_code)s  len: %(body_length)s time: %(wall_seconds).7f

A python format string that is used as the template to generate log lines. The following values can beformatted into it: client_ip, date_time, request_line, status_code, body_length, wall_seconds.

tcp_keepidle
Type

integer

Default

600

Sets the value of TCP_KEEPIDLE in seconds for each server socket. Not supported on OS X.

wsgi_default_pool_size
Type

integer

Default

100

Size of the pool of greenthreads used by wsgi

max_header_line
Type

integer

Default

16384

Maximum line size of message headers to be accepted. max_header_line may need to be increased when using large tokens (typically those generated when keystone is configured to use PKI tokens with big service catalogs).

wsgi_keep_alive
Type

boolean

Default

true

If False, closes the client socket connection explicitly.

client_socket_timeout
Type

integer

Default

900

Timeout for client connections’ socket operations. If an incoming connection is idle for this number of seconds it will be closed. A value of ‘0’ means wait forever.

rpc_conn_pool_size
Type

integer

Default

30

Size of RPC connection pool.

Deprecated Variations

Group

Name

DEFAULT

rpc_conn_pool_size

conn_pool_min_size
Type

integer

Default

2

The pool size limit for connections expiration policy

conn_pool_ttl
Type

integer

Default

1200

The time-to-live in sec of idle connections in the pool

executor_thread_pool_size
Type

integer

Default

64

Size of executor thread pool when executor is threading or eventlet.

Deprecated Variations

Group

Name

DEFAULT

rpc_thread_pool_size

rpc_response_timeout
Type

integer

Default

60

Seconds to wait for a response from a call.

transport_url
Type

string

Default

rabbit://

The network address and optional user credentials for connecting to the messaging backend, in URL format. The expected format is:

driver://[user:pass@]host:port[,[userN:passN@]hostN:portN]/virtual_host?query

Example: rabbit://rabbitmq:password@127.0.0.1:5672//

For full details on the fields in the URL see the documentation of oslo_messaging.TransportURL at https://docs.openstack.org/oslo.messaging/latest/reference/transport.html

control_exchange
Type

string

Default

openstack

The default exchange under which topics are scoped. May be overridden by an exchange name specified in the transport_url option.

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, log-date-format).

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.

use_eventlog
Type

boolean

Default

false

Log output to Windows Event Log.

log_rotate_interval
Type

integer

Default

1

The amount of time before the log files are rotated. This option is ignored unless log_rotation_type is setto “interval”.

log_rotate_interval_type
Type

string

Default

days

Valid Values

Seconds, Minutes, Hours, Days, Weekday, Midnight

Rotation interval type. The time of the last file change (or the time when the service was started) is used when scheduling the next rotation.

max_logfile_count
Type

integer

Default

30

Maximum number of rotated log files.

max_logfile_size_mb
Type

integer

Default

200

Log file maximum size in MB. This option is ignored if “log_rotation_type” is not set to “size”.

log_rotation_type
Type

string

Default

none

Valid Values

interval, size, none

Log rotation type.

Possible values

interval

Rotate logs at predefined time intervals.

size

Rotate logs once they reach a predefined size.

none

Do not rotate log files.

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. Used by oslo_log.formatters.ContextFormatter

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. Used by oslo_log.formatters.ContextFormatter

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. Used by oslo_log.formatters.ContextFormatter

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. Used by oslo_log.formatters.ContextFormatter

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. Used by oslo_log.formatters.ContextFormatter

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,oslo_policy=INFO,dogpile.core.dogpile=INFO,stevedore=INFO,eventlet.wsgi.server=WARN,paramiko=WARN,requests=WARN,neutronclient=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.

host
Type

host address

Default

0.0.0.0

Hostname or IP address that will be used to listen on.

port
Type

port number

Default

8386

Minimum Value

0

Maximum Value

65535

Port that will be used to listen on.

log_exchange
Type

boolean

Default

false

Log request/response exchange details: environ, headers and bodies.

job_binary_max_KB
Type

integer

Default

5120

Maximum length of job binary data in kilobytes that may be stored or retrieved in a single operation.

job_canceling_timeout
Type

integer

Default

300

Timeout for canceling job execution (in seconds). Sahara will try to cancel job execution during this time.

edp_internal_db_enabled
Type

boolean

Default

true

Use Sahara internal db to store job binaries.

use_floating_ips
Type

boolean

Default

true

If set to True, Sahara will use floating IPs to communicate with instances. To make sure that all instances have floating IPs assigned, make sure that all Node Groups have “floating_ip_pool” parameter defined.

node_domain
Type

string

Default

novalocal

The suffix of the node’s FQDN.

use_namespaces
Type

boolean

Default

false

Use network namespaces for communication.

use_rootwrap
Type

boolean

Default

false

Use rootwrap facility to allow non-root users to run the sahara services and access private network IPs (only valid to use in conjunction with use_namespaces=True)

rootwrap_command
Type

string

Default

sudo sahara-rootwrap /etc/sahara/rootwrap.conf

Rootwrap command to leverage. Use in conjunction with use_rootwrap=True

use_designate
Type

boolean

Default

false

Use Designate for internal and external hostnames resolution

nameservers
Type

list

Default

''

IP addresses of Designate nameservers. This is required if ‘use_designate’ is True

db_driver
Type

string

Default

sahara.db

Driver to use for database access.

identity_ip_accessible
Type

ip address

Default

<None>

IP address of Keystone endpoint, accessible by tenant machines. If not set, the results of the DNS lookup performed where Sahara services are running will be used.

object_store_ip_accessible
Type

ip address

Default

<None>

IP address of Swift endpoint, accessible by tenant machines. If not set, the results of the DNS lookup performed where Sahara services are running will be used.

plugins
Type

list

Default

vanilla,spark,cdh,ambari,storm,mapr

List of plugins to be loaded. Sahara preserves the order of the list when returning it.

enable_data_locality
Type

boolean

Default

false

Enables data locality for hadoop cluster. Also enables data locality for Swift used by hadoop. If enabled, ‘compute_topology’ and ‘swift_topology’ configuration parameters should point to OpenStack and Swift topology correspondingly.

enable_hypervisor_awareness
Type

boolean

Default

true

Enables four-level topology for data locality. Works only if corresponding plugin supports such mode.

compute_topology_file
Type

string

Default

etc/sahara/compute.topology

File with nova compute topology. It should contain mapping between nova computes and racks.

swift_topology_file
Type

string

Default

etc/sahara/swift.topology

File with Swift topology.It should contain mapping between Swift nodes and racks.

use_identity_api_v3
Type

boolean

Default

true

Enables Sahara to use Keystone API v3. If that flag is disabled, per-job clusters will not be terminated automatically.

global_remote_threshold
Type

integer

Default

100

Maximum number of remote operations that will be running at the same time. Note that each remote operation requires its own process to run.

cluster_remote_threshold
Type

integer

Default

70

The same as global_remote_threshold, but for a single cluster.

proxy_command
Type

string

Default

''

Proxy command used to connect to instances. If set, this command should open a netcat socket, that Sahara will use for SSH and HTTP connections. Use {host} and {port} to describe the destination. Other available keywords: {tenant_id}, {network_id}, {router_id}.

proxy_command_use_internal_ip
Type

boolean

Default

false

Force proxy_command usage to be consuming internal IP always, instead of management IP. Ignored if proxy_command is not set.

os_region_name
Type

string

Default

<None>

Region name used to get services endpoints.

remote
Type

string

Default

ssh

A method for Sahara to execute commands on VMs.

api_workers
Type

integer

Default

1

Number of workers for Sahara API service (0 means all-in-one-thread configuration).

job_workflow_postfix
Type

string

Default

''

Postfix for storing jobs in hdfs. Will be added to ‘/user/<hdfs user>/’ path.

periodic_enable
Type

boolean

Default

true

Enable periodic tasks.

periodic_fuzzy_delay
Type

integer

Default

60

Range in seconds to randomly delay when starting the periodic task scheduler to reduce stampeding. (Disable by setting to 0).

periodic_interval_max
Type

integer

Default

60

Max interval size between periodic tasks execution in seconds.

min_transient_cluster_active_time
Type

integer

Default

30

Minimal “lifetime” in seconds for a transient cluster. Cluster is guaranteed to be “alive” within this time period.

cleanup_time_for_incomplete_clusters
Type

integer

Default

0

Maximal time (in hours) for clusters allowed to be in states other than “Active”, “Deleting” or “Error”. If a cluster is not in “Active”, “Deleting” or “Error” state and last update of it was longer than “cleanup_time_for_incomplete_clusters” hours ago then it will be deleted automatically. (0 value means that automatic clean up is disabled).

periodic_coordinator_backend_url
Type

string

Default

<None>

The backend URL to use for distributed periodic tasks coordination.

periodic_workers_number
Type

integer

Default

1

Number of threads to run periodic tasks.

coordinator_heartbeat_interval
Type

integer

Default

1

Interval size between heartbeat execution in seconds. Heartbeats are executed to make sure that connection to the coordination server is active.

hash_ring_replicas_count
Type

integer

Default

40

Number of points that belongs to each member on a hash ring. The larger number leads to a better distribution.

default_ntp_server
Type

string

Default

pool.ntp.org

Default ntp server for time sync

use_domain_for_proxy_users
Type

boolean

Default

false

Enables Sahara to use a domain for creating temporary proxy users to access Swift. If this is enabled a domain must be created for Sahara to use.

proxy_user_domain_name
Type

string

Default

<None>

The domain Sahara will use to create new proxy users for Swift object access.

proxy_user_role_names
Type

list

Default

member

A list of the role names that the proxy user should assume through trust for Swift object access.

disable_event_log
Type

boolean

Default

false

Disables event log feature.

retries_number
Type

integer

Default

5

Number of times to retry the request to client before failing

retry_after
Type

integer

Default

10

Time between the retries to client (in seconds).

heat_stack_tags
Type

list

Default

data-processing-cluster

List of tags to be used during operating with stack.

heat_enable_wait_condition
Type

boolean

Default

true

Enable wait condition feature to reduce polling during cluster creation

ssh_timeout_common
Type

integer

Default

300

Minimum Value

1

Overrides timeout for common ssh operations, in seconds

ssh_timeout_interactive
Type

integer

Default

1800

Minimum Value

1

Overrides timeout for interactive ssh operations, in seconds

ssh_timeout_files
Type

integer

Default

600

Minimum Value

1

Overrides timeout for ssh operations with files, in seconds

use_barbican_key_manager
Type

boolean

Default

false

Enable the usage of the OpenStack Key Management service provided by barbican.

data_source_types
Type

list

Default

swift,hdfs,maprfs,manila,s3

List of data sources types to be loaded. Sahara preserves the order of the list when returning it.

job_binary_types
Type

list

Default

swift,manila,internal-db,s3

List of job binary types to be loaded. Sahara preserves the order of the list when returning it.

castellan

barbican_api_endpoint
Type

string

Default

<None>

The endpoint to use for connecting to the barbican api controller. By default, castellan will use the URL from the service catalog.

barbican_api_version
Type

string

Default

v1

Version of the barbican API, for example: “v1”

cinder

api_version
Type

integer

Default

3

Version of the Cinder API to use.

Deprecated Variations

Group

Name

cinder

cinder_api_version

api_insecure
Type

boolean

Default

false

Allow to perform insecure SSL requests to cinder.

ca_file
Type

string

Default

<None>

Location of ca certificates file to use for cinder client requests.

endpoint_type
Type

string

Default

internalURL

Endpoint type for cinder client requests

conductor

use_local
Type

boolean

Default

true

Perform sahara-conductor operations locally.

cors

allowed_origin
Type

list

Default

<None>

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

allow_credentials
Type

boolean

Default

true

Indicate that the actual request can include user credentials

expose_headers
Type

list

Default

X-Auth-Token,X-Subject-Token,X-Service-Token,X-OpenStack-Request-ID

Indicate which headers are safe to expose to the API. Defaults to HTTP Simple Headers.

max_age
Type

integer

Default

3600

Maximum cache age of CORS preflight requests.

allow_methods
Type

list

Default

GET,PUT,POST,DELETE,PATCH

Indicate which methods can be used during the actual request.

allow_headers
Type

list

Default

X-Auth-Token,X-Identity-Status,X-Roles,X-Service-Catalog,X-User-Id,X-Tenant-Id,X-OpenStack-Request-ID

Indicate which header field names may be used during the actual request.

database

sqlite_synchronous
Type

boolean

Default

true

If True, SQLite uses synchronous mode.

Deprecated Variations

Group

Name

DEFAULT

sqlite_synchronous

backend
Type

string

Default

sqlalchemy

The back end to use for the database.

Deprecated Variations

Group

Name

DEFAULT

db_backend

connection
Type

string

Default

<None>

The SQLAlchemy connection string to use to connect to the database.

Deprecated Variations

Group

Name

DEFAULT

sql_connection

DATABASE

sql_connection

sql

connection

slave_connection
Type

string

Default

<None>

The SQLAlchemy connection string to use to connect to the slave database.

mysql_sql_mode
Type

string

Default

TRADITIONAL

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=

mysql_enable_ndb
Type

boolean

Default

false

If True, transparently enables support for handling MySQL Cluster (NDB).

connection_recycle_time
Type

integer

Default

3600

Connections which have been present in the connection pool longer than this number of seconds will be replaced with a new one the next time they are checked out from the pool.

Deprecated Variations

Group

Name

DATABASE

idle_timeout

database

idle_timeout

DEFAULT

sql_idle_timeout

DATABASE

sql_idle_timeout

sql

idle_timeout

max_pool_size
Type

integer

Default

5

Maximum number of SQL connections to keep open in a pool. Setting a value of 0 indicates no limit.

Deprecated Variations

Group

Name

DEFAULT

sql_max_pool_size

DATABASE

sql_max_pool_size

max_retries
Type

integer

Default

10

Maximum number of database connection retries during startup. Set to -1 to specify an infinite retry count.

Deprecated Variations

Group

Name

DEFAULT

sql_max_retries

DATABASE

sql_max_retries

retry_interval
Type

integer

Default

10

Interval between retries of opening a SQL connection.

Deprecated Variations

Group

Name

DEFAULT

sql_retry_interval

DATABASE

reconnect_interval

max_overflow
Type

integer

Default

50

If set, use this value for max_overflow with SQLAlchemy.

Deprecated Variations

Group

Name

DEFAULT

sql_max_overflow

DATABASE

sqlalchemy_max_overflow

connection_debug
Type

integer

Default

0

Minimum Value

0

Maximum Value

100

Verbosity of SQL debugging information: 0=None, 100=Everything.

Deprecated Variations

Group

Name

DEFAULT

sql_connection_debug

connection_trace
Type

boolean

Default

false

Add Python stack traces to SQL as comment strings.

Deprecated Variations

Group

Name

DEFAULT

sql_connection_trace

pool_timeout
Type

integer

Default

<None>

If set, use this value for pool_timeout with SQLAlchemy.

Deprecated Variations

Group

Name

DATABASE

sqlalchemy_pool_timeout

use_db_reconnect
Type

boolean

Default

false

Enable the experimental use of database reconnect on connection lost.

db_retry_interval
Type

integer

Default

1

Seconds between retries of a database transaction.

db_inc_retry_interval
Type

boolean

Default

true

If True, increases the interval between retries of a database operation up to db_max_retry_interval.

db_max_retry_interval
Type

integer

Default

10

If db_inc_retry_interval is set, the maximum seconds between retries of a database operation.

db_max_retries
Type

integer

Default

20

Maximum retries in case of connection error or deadlock error before error is raised. Set to -1 to specify an infinite retry count.

connection_parameters
Type

string

Default

''

Optional URL parameters to append onto the connection URL at connect time; specify as param1=value1&param2=value2&…

glance

api_insecure
Type

boolean

Default

false

Allow to perform insecure SSL requests to glance.

ca_file
Type

string

Default

<None>

Location of ca certificates file to use for glance client requests.

endpoint_type
Type

string

Default

internalURL

Endpoint type for glance client requests

heat

api_insecure
Type

boolean

Default

false

Allow to perform insecure SSL requests to heat.

ca_file
Type

string

Default

<None>

Location of ca certificates file to use for heat client requests.

endpoint_type
Type

string

Default

internalURL

Endpoint type for heat client requests

keystone

api_insecure
Type

boolean

Default

false

Allow to perform insecure SSL requests to keystone.

ca_file
Type

string

Default

<None>

Location of ca certificates file to use for keystone client requests.

endpoint_type
Type

string

Default

internalURL

Endpoint type for keystone client requests

keystone_authtoken

www_authenticate_uri
Type

string

Default

<None>

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.

Deprecated Variations

Group

Name

keystone_authtoken

auth_uri

auth_uri
Type

string

Default

<None>

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. This option is deprecated in favor of www_authenticate_uri and will be removed in the S release.

Warning

This option is deprecated for removal since Queens. Its value may be silently ignored in the future.

Reason

The auth_uri option is deprecated in favor of www_authenticate_uri and will be removed in the S release.

auth_version
Type

string

Default

<None>

API version of the Identity API endpoint.

interface
Type

string

Default

admin

Interface to use for the Identity API endpoint. Valid values are “public”, “internal” or “admin”(default).

delay_auth_decision
Type

boolean

Default

false

Do not handle authorization requests within the middleware, but delegate the authorization decision to downstream WSGI components.

http_connect_timeout
Type

integer

Default

<None>

Request timeout value for communicating with Identity API server.

http_request_max_retries
Type

integer

Default

3

How many times are we trying to reconnect when communicating with Identity API Server.

cache
Type

string

Default

<None>

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.

certfile
Type

string

Default

<None>

Required if identity server requires client certificate

keyfile
Type

string

Default

<None>

Required if identity server requires client certificate

cafile
Type

string

Default

<None>

A PEM encoded Certificate Authority to use when verifying HTTPs connections. Defaults to system CAs.

insecure
Type

boolean

Default

false

Verify HTTPS connections.

region_name
Type

string

Default

<None>

The region in which the identity server can be found.

memcached_servers
Type

list

Default

<None>

Optionally specify a list of memcached server(s) to use for caching. If left undefined, tokens will instead be cached in-process.

Deprecated Variations

Group

Name

keystone_authtoken

memcache_servers

token_cache_time
Type

integer

Default

300

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.

memcache_security_strategy
Type

string

Default

None

Valid Values

None, MAC, ENCRYPT

(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.

memcache_secret_key
Type

string

Default

<None>

(Optional, mandatory if memcache_security_strategy is defined) This string is used for key derivation.

memcache_pool_dead_retry
Type

integer

Default

300

(Optional) Number of seconds memcached server is considered dead before it is tried again.

memcache_pool_maxsize
Type

integer

Default

10

(Optional) Maximum total number of open connections to every memcached server.

memcache_pool_socket_timeout
Type

integer

Default

3

(Optional) Socket timeout in seconds for communicating with a memcached server.

memcache_pool_unused_timeout
Type

integer

Default

60

(Optional) Number of seconds a connection to memcached is held unused in the pool before it is closed.

memcache_pool_conn_get_timeout
Type

integer

Default

10

(Optional) Number of seconds that an operation will wait to get a memcached client connection from the pool.

memcache_use_advanced_pool
Type

boolean

Default

false

(Optional) Use the advanced (eventlet safe) memcached client pool. The advanced pool will only work under python 2.x.

include_service_catalog
Type

boolean

Default

true

(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.

enforce_token_bind
Type

string

Default

permissive

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.

service_token_roles
Type

list

Default

service

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.

service_token_roles_required
Type

boolean

Default

false

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.

service_type
Type

string

Default

<None>

The name or type of the service as it appears in the service catalog. This is used to validate tokens that have restricted access rules.

auth_type
Type

unknown type

Default

<None>

Authentication type to load

Deprecated Variations

Group

Name

keystone_authtoken

auth_plugin

auth_section
Type

unknown type

Default

<None>

Config Section from which to load plugin specific options

manila

api_version
Type

string

Default

1

Version of the manila API to use.

api_insecure
Type

boolean

Default

true

Allow to perform insecure SSL requests to manila.

ca_file
Type

string

Default

<None>

Location of ca certificates file to use for manila client requests.

neutron

api_insecure
Type

boolean

Default

false

Allow to perform insecure SSL requests to neutron.

ca_file
Type

string

Default

<None>

Location of ca certificates file to use for neutron client requests.

endpoint_type
Type

string

Default

internalURL

Endpoint type for neutron client requests

nova

api_insecure
Type

boolean

Default

false

Allow to perform insecure SSL requests to nova.

ca_file
Type

string

Default

<None>

Location of ca certificates file to use for nova client requests.

endpoint_type
Type

string

Default

internalURL

Endpoint type for nova client requests

object_store_access

public_identity_ca_file
Type

string

Default

<None>

Location of ca certificate file to use for identity client requests via public endpoint

public_object_store_ca_file
Type

string

Default

<None>

Location of ca certificate file to use for object-store client requests via public endpoint

oslo_concurrency

disable_process_locking
Type

boolean

Default

false

Enables or disables inter-process locks.

Deprecated Variations

Group

Name

DEFAULT

disable_process_locking

lock_path
Type

string

Default

<None>

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.

Deprecated Variations

Group

Name

DEFAULT

lock_path

oslo_messaging_amqp

container_name
Type

string

Default

<None>

Name for the AMQP container. must be globally unique. Defaults to a generated UUID

Deprecated Variations

Group

Name

amqp1

container_name

idle_timeout
Type

integer

Default

0

Timeout for inactive connections (in seconds)

Deprecated Variations

Group

Name

amqp1

idle_timeout

trace
Type

boolean

Default

false

Debug: dump AMQP frames to stdout

Deprecated Variations

Group

Name

amqp1

trace

ssl
Type

boolean

Default

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.

ssl_ca_file
Type

string

Default

''

CA certificate PEM file used to verify the server’s certificate

Deprecated Variations

Group

Name

amqp1

ssl_ca_file

ssl_cert_file
Type

string

Default

''

Self-identifying certificate PEM file for client authentication

Deprecated Variations

Group

Name

amqp1

ssl_cert_file

ssl_key_file
Type

string

Default

''

Private key PEM file used to sign ssl_cert_file certificate (optional)

Deprecated Variations

Group

Name

amqp1

ssl_key_file

ssl_key_password
Type

string

Default

<None>

Password for decrypting ssl_key_file (if encrypted)

Deprecated Variations

Group

Name

amqp1

ssl_key_password

ssl_verify_vhost
Type

boolean

Default

false

By default SSL checks that the name in the server’s certificate matches the hostname in the transport_url. In some configurations it may be preferable to use the virtual hostname instead, for example if the server uses the Server Name Indication TLS extension (rfc6066) to provide a certificate per virtual host. Set ssl_verify_vhost to True if the server’s SSL certificate uses the virtual host name instead of the DNS name.

sasl_mechanisms
Type

string

Default

''

Space separated list of acceptable SASL mechanisms

Deprecated Variations

Group

Name

amqp1

sasl_mechanisms

sasl_config_dir
Type

string

Default

''

Path to directory that contains the SASL configuration

Deprecated Variations

Group

Name

amqp1

sasl_config_dir

sasl_config_name
Type

string

Default

''

Name of configuration file (without .conf suffix)

Deprecated Variations

Group

Name

amqp1

sasl_config_name

sasl_default_realm
Type

string

Default

''

SASL realm to use if no realm present in username

connection_retry_interval
Type

integer

Default

1

Minimum Value

1

Seconds to pause before attempting to re-connect.

connection_retry_backoff
Type

integer

Default

2

Minimum Value

0

Increase the connection_retry_interval by this many seconds after each unsuccessful failover attempt.

connection_retry_interval_max
Type

integer

Default

30

Minimum Value

1

Maximum limit for connection_retry_interval + connection_retry_backoff

Type

integer

Default

10

Minimum Value

1

Time to pause between re-connecting an AMQP 1.0 link that failed due to a recoverable error.

default_reply_retry
Type

integer

Default

0

Minimum Value

-1

The maximum number of attempts to re-send a reply message which failed due to a recoverable error.

default_reply_timeout
Type

integer

Default

30

Minimum Value

5

The deadline for an rpc reply message delivery.

default_send_timeout
Type

integer

Default

30

Minimum Value

5

The deadline for an rpc cast or call message delivery. Only used when caller does not provide a timeout expiry.

default_notify_timeout
Type

integer

Default

30

Minimum Value

5

The deadline for a sent notification message delivery. Only used when caller does not provide a timeout expiry.

Type

integer

Default

600

Minimum Value

1

The duration to schedule a purge of idle sender links. Detach link after expiry.

addressing_mode
Type

string

Default

dynamic

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

pseudo_vhost
Type

boolean

Default

true

Enable virtual host support for those message buses that do not natively support virtual hosting (such as qpidd). When set to true the virtual host name will be added to all message bus addresses, effectively creating a private ‘subnet’ per virtual host. Set to False if the message bus supports virtual hosting using the ‘hostname’ field in the AMQP 1.0 Open performative as the name of the virtual host.

server_request_prefix
Type

string

Default

exclusive

address prefix used when sending to a specific server

Deprecated Variations

Group

Name

amqp1

server_request_prefix

broadcast_prefix
Type

string

Default

broadcast

address prefix used when broadcasting to all servers

Deprecated Variations

Group

Name

amqp1

broadcast_prefix

group_request_prefix
Type

string

Default

unicast

address prefix when sending to any server in group

Deprecated Variations

Group

Name

amqp1

group_request_prefix

rpc_address_prefix
Type

string

Default

openstack.org/om/rpc

Address prefix for all generated RPC addresses

notify_address_prefix
Type

string

Default

openstack.org/om/notify

Address prefix for all generated Notification addresses

multicast_address
Type

string

Default

multicast

Appended to the address prefix when sending a fanout message. Used by the message bus to identify fanout messages.

unicast_address
Type

string

Default

unicast

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.

anycast_address
Type

string

Default

anycast

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.

default_notification_exchange
Type

string

Default

<None>

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’

default_rpc_exchange
Type

string

Default

<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’

Type

integer

Default

200

Minimum Value

1

Window size for incoming RPC Reply messages.

rpc_server_credit
Type

integer

Default

100

Minimum Value

1

Window size for incoming RPC Request messages

notify_server_credit
Type

integer

Default

100

Minimum Value

1

Window size for incoming Notification messages

pre_settled
Type

multi-valued

Default

rpc-cast

Default

rpc-reply

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

oslo_messaging_kafka

kafka_max_fetch_bytes
Type

integer

Default

1048576

Max fetch bytes of Kafka consumer

kafka_consumer_timeout
Type

floating point

Default

1.0

Default timeout(s) for Kafka consumers

pool_size
Type

integer

Default

10

Pool Size for Kafka Consumers

Warning

This option is deprecated for removal. Its value may be silently ignored in the future.

Reason

Driver no longer uses connection pool.

conn_pool_min_size
Type

integer

Default

2

The pool size limit for connections expiration policy

Warning

This option is deprecated for removal. Its value may be silently ignored in the future.

Reason

Driver no longer uses connection pool.

conn_pool_ttl
Type

integer

Default

1200

The time-to-live in sec of idle connections in the pool

Warning

This option is deprecated for removal. Its value may be silently ignored in the future.

Reason

Driver no longer uses connection pool.

consumer_group
Type

string

Default

oslo_messaging_consumer

Group id for Kafka consumer. Consumers in one group will coordinate message consumption

producer_batch_timeout
Type

floating point

Default

0.0

Upper bound on the delay for KafkaProducer batching in seconds

producer_batch_size
Type

integer

Default

16384

Size of batch for the producer async send

compression_codec
Type

string

Default

none

Valid Values

none, gzip, snappy, lz4, zstd

The compression codec for all data generated by the producer. Valid values are: gzip, snappy, lz4, zstd. If not set, compression will not be used. Note that the legal option of this depends on the kafka version

enable_auto_commit
Type

boolean

Default

false

Enable asynchronous consumer commits

max_poll_records
Type

integer

Default

500

The maximum number of records returned in a poll call

security_protocol
Type

string

Default

PLAINTEXT

Valid Values

PLAINTEXT, SASL_PLAINTEXT, SSL, SASL_SSL

Protocol used to communicate with brokers

sasl_mechanism
Type

string

Default

PLAIN

Mechanism when security protocol is SASL

ssl_cafile
Type

string

Default

''

CA certificate PEM file used to verify the server certificate

oslo_messaging_notifications

driver
Type

multi-valued

Default

''

The Drivers(s) to handle sending notifications. Possible values are messaging, messagingv2, routing, log, test, noop

Deprecated Variations

Group

Name

DEFAULT

notification_driver

transport_url
Type

string

Default

<None>

A URL representing the messaging driver to use for notifications. If not set, we fall back to the same configuration used for RPC.

Deprecated Variations

Group

Name

DEFAULT

notification_transport_url

topics
Type

list

Default

notifications

AMQP topic used for OpenStack notifications.

Deprecated Variations

Group

Name

rpc_notifier2

topics

DEFAULT

notification_topics

retry
Type

integer

Default

-1

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

level
Type

string

Default

INFO

Notification level for outgoing notifications

Deprecated Variations

Group

Name

DEFAULT

notification_level

publisher_id
Type

string

Default

<None>

Identifier of the publisher

Deprecated Variations

Group

Name

DEFAULT

notification_publisher_id

oslo_messaging_rabbit

amqp_durable_queues
Type

boolean

Default

false

Use durable queues in AMQP.

amqp_auto_delete
Type

boolean

Default

false

Auto-delete queues in AMQP.

Deprecated Variations

Group

Name

DEFAULT

amqp_auto_delete

ssl
Type

boolean

Default

false

Connect over SSL.

Deprecated Variations

Group

Name

oslo_messaging_rabbit

rabbit_use_ssl

ssl_version
Type

string

Default

''

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.

Deprecated Variations

Group

Name

oslo_messaging_rabbit

kombu_ssl_version

ssl_key_file
Type

string

Default

''

SSL key file (valid only if SSL enabled).

Deprecated Variations

Group

Name

oslo_messaging_rabbit

kombu_ssl_keyfile

ssl_cert_file
Type

string

Default

''

SSL cert file (valid only if SSL enabled).

Deprecated Variations

Group

Name

oslo_messaging_rabbit

kombu_ssl_certfile

ssl_ca_file
Type

string

Default

''

SSL certification authority file (valid only if SSL enabled).

Deprecated Variations

Group

Name

oslo_messaging_rabbit

kombu_ssl_ca_certs

kombu_reconnect_delay
Type

floating point

Default

1.0

How long to wait before reconnecting in response to an AMQP consumer cancel notification.

Deprecated Variations

Group

Name

DEFAULT

kombu_reconnect_delay

kombu_compression
Type

string

Default

<None>

EXPERIMENTAL: Possible values are: gzip, bz2. If not set compression will not be used. This option may not be available in future versions.

kombu_missing_consumer_retry_timeout
Type

integer

Default

60

How long to wait a missing client before abandoning to send it its replies. This value should not be longer than rpc_response_timeout.

Deprecated Variations

Group

Name

oslo_messaging_rabbit

kombu_reconnect_timeout

kombu_failover_strategy
Type

string

Default

round-robin

Valid Values

round-robin, shuffle

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.

rabbit_login_method
Type

string

Default

AMQPLAIN

Valid Values

PLAIN, AMQPLAIN, RABBIT-CR-DEMO

The RabbitMQ login method.

Deprecated Variations

Group

Name

DEFAULT

rabbit_login_method

rabbit_retry_interval
Type

integer

Default

1

How frequently to retry connecting with RabbitMQ.

rabbit_retry_backoff
Type

integer

Default

2

How long to backoff for between retries when connecting to RabbitMQ.

Deprecated Variations

Group

Name

DEFAULT

rabbit_retry_backoff

rabbit_interval_max
Type

integer

Default

30

Maximum interval of RabbitMQ connection retries. Default is 30 seconds.

rabbit_ha_queues
Type

boolean

Default

false

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”}’ “

Deprecated Variations

Group

Name

DEFAULT

rabbit_ha_queues

rabbit_transient_queues_ttl
Type

integer

Default

1800

Minimum Value

1

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.

rabbit_qos_prefetch_count
Type

integer

Default

0

Specifies the number of messages to prefetch. Setting to zero allows unlimited messages.

heartbeat_timeout_threshold
Type

integer

Default

60

Number of seconds after which the Rabbit broker is considered down if heartbeat’s keep-alive fails (0 disables heartbeat).

heartbeat_rate
Type

integer

Default

2

How often times during the heartbeat_timeout_threshold we check the heartbeat.

oslo_middleware

enable_proxy_headers_parsing
Type

boolean

Default

false

Whether the application is behind a proxy or not. This determines if the middleware should parse the headers or not.

oslo_policy

enforce_scope
Type

boolean

Default

false

This option controls whether or not to enforce scope when evaluating policies. If True, the scope of the token used in the request is compared to the scope_types of the policy being enforced. If the scopes do not match, an InvalidScope exception will be raised. If False, a message will be logged informing operators that policies are being invoked with mismatching scope.

policy_file
Type

string

Default

policy.json

The relative or absolute path of a file that maps roles to permissions for a given service. Relative paths must be specified in relation to the configuration file setting this option.

Deprecated Variations

Group

Name

DEFAULT

policy_file

policy_default_rule
Type

string

Default

default

Default rule. Enforced when a requested rule is not found.

Deprecated Variations

Group

Name

DEFAULT

policy_default_rule

policy_dirs
Type

multi-valued

Default

policy.d

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.

Deprecated Variations

Group

Name

DEFAULT

policy_dirs

remote_content_type
Type

string

Default

application/x-www-form-urlencoded

Valid Values

application/x-www-form-urlencoded, application/json

Content Type to send and receive data for REST based policy check

remote_ssl_verify_server_crt
Type

boolean

Default

false

server identity verification for REST based policy check

remote_ssl_ca_crt_file
Type

string

Default

<None>

Absolute path to ca cert file for REST based policy check

remote_ssl_client_crt_file
Type

string

Default

<None>

Absolute path to client cert for REST based policy check

remote_ssl_client_key_file
Type

string

Default

<None>

Absolute path client key file REST based policy check

retries

retries_number
Type

integer

Default

5

Number of times to retry the request to client before failing

retry_after
Type

integer

Default

10

Time between the retries to client (in seconds).

ssl

ca_file
Type

string

Default

<None>

CA certificate file to use to verify connecting clients.

Deprecated Variations

Group

Name

DEFAULT

ssl_ca_file

cert_file
Type

string

Default

<None>

Certificate file to use when starting the server securely.

Deprecated Variations

Group

Name

DEFAULT

ssl_cert_file

key_file
Type

string

Default

<None>

Private key file to use when starting the server securely.

Deprecated Variations

Group

Name

DEFAULT

ssl_key_file

version
Type

string

Default

<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.

ciphers
Type

string

Default

<None>

Sets the list of available ciphers. value should be a string in the OpenSSL cipher list format.

swift

api_insecure
Type

boolean

Default

false

Allow to perform insecure SSL requests to swift.

ca_file
Type

string

Default

<None>

Location of ca certificates file to use for swift client requests.

endpoint_type
Type

string

Default

internalURL

Endpoint type for swift client requests

timeouts

ips_assign_timeout
Type

integer

Default

10800

Assign IPs timeout, in seconds

wait_until_accessible
Type

integer

Default

10800

Wait for instance accessibility, in seconds

delete_instances_timeout
Type

integer

Default

10800

Wait for instances to be deleted, in seconds

detach_volume_timeout
Type

integer

Default

300

Timeout for detaching volumes from instance, in seconds

trustee

username
Type

string

Default

<None>

Username for trusts creation

password
Type

string

Default

<None>

Password for trusts creation

project_name
Type

string

Default

<None>

Project name for trusts creation

user_domain_name
Type

string

Default

Default

User domain name for trusts creation

project_domain_name
Type

string

Default

Default

Project domain name for trusts creation

auth_url
Type

string

Default

<None>

Auth url for trusts creation