Configuration options for the Orchestration service

The following options can be set in the /etc/heat/heat.conf config file. A sample configuration file is also available.

DEFAULT

host

Type

string

Default

<Hostname>

This option has a sample default set, which means that its actual default value may vary from the one documented above.

Name of the engine node. This can be an opaque identifier. It is not necessarily a hostname, FQDN, or IP address.

plugin_dirs

Type

list

Default

['/usr/lib64/heat', '/usr/lib/heat', '/usr/local/lib/heat', '/usr/local/lib64/heat']

List of directories to search for plug-ins.

environment_dir

Type

string

Default

/etc/heat/environment.d

The directory to search for environment files.

template_dir

Type

string

Default

/etc/heat/templates

The directory to search for template files.

deferred_auth_method

Type

string

Default

trusts

Valid Values

password, trusts

Select deferred auth method, stored password or trusts.

Warning

This option is deprecated for removal since 9.0.0. Its value may be silently ignored in the future.

Reason

Stored password based deferred auth is broken when used with keystone v3 and is not supported.

reauthentication_auth_method

Type

string

Default

''

Valid Values

‘’, trusts

Allow reauthentication on token expiry, such that long-running tasks may complete. Note this defeats the expiry of any provided user tokens.

allow_trusts_redelegation

Type

boolean

Default

False

Create trusts with redelegation enabled. This option is only used when reauthentication_auth_method is set to “trusts”. Note that enabling this option does have security implications as all trusts created by Heat will use both impersonation and redelegation enabled. Enable it only when there are other services that need to create trusts from tokens Heat uses to access them, examples are Aodh and Heat in another region when configured to use trusts too.

trusts_delegated_roles

Type

list

Default

[]

Subset of trustor roles to be delegated to heat. If left unset, all roles of a user will be delegated to heat when creating a stack.

max_resources_per_stack

Type

integer

Default

1000

Maximum resources allowed per top-level stack. -1 stands for unlimited.

max_stacks_per_tenant

Type

integer

Default

512

Maximum number of stacks any one tenant may have active at one time. -1 stands for unlimited.

action_retry_limit

Type

integer

Default

5

Number of times to retry to bring a resource to a non-error state. Set to 0 to disable retries.

client_retry_limit

Type

integer

Default

2

Number of times to retry when a client encounters an expected intermittent error. Set to 0 to disable retries.

max_server_name_length

Type

integer

Default

53

Maximum Value

53

Maximum length of a server name to be used in nova.

max_interface_check_attempts

Type

integer

Default

10

Minimum Value

1

Number of times to check whether an interface has been attached or detached.

max_nova_api_microversion

Type

floating point

Default

<None>

Maximum nova API version for client plugin. With this limitation, any nova feature supported with microversion number above max_nova_api_microversion will not be available.

max_ironic_api_microversion

Type

floating point

Default

<None>

Maximum ironic API version for client plugin. With this limitation, any ironic feature supported with microversion number above max_ironic_api_microversion will not be available.

event_purge_batch_size

Type

integer

Default

200

Minimum Value

1

Controls how many events will be pruned whenever a stack’s events are purged. Set this lower to keep more events at the expense of more frequent purges.

max_events_per_stack

Type

integer

Default

1000

Rough number of maximum events that will be available per stack. Actual number of events can be a bit higher since purge checks take place randomly 200/event_purge_batch_size percent of the time. Older events are deleted when events are purged. Set to 0 for unlimited events per stack.

stack_action_timeout

Type

integer

Default

3600

Timeout in seconds for stack action (ie. create or update).

error_wait_time

Type

integer

Default

240

The amount of time in seconds after an error has occurred that tasks may continue to run before being cancelled.

engine_life_check_timeout

Type

integer

Default

2

RPC timeout for the engine liveness check that is used for stack locking.

enable_cloud_watch_lite

Type

boolean

Default

False

Enable the legacy OS::Heat::CWLiteAlarm resource.

Warning

This option is deprecated for removal since 10.0.0. Its value may be silently ignored in the future.

Reason

Heat CloudWatch Service has been removed.

enable_stack_abandon

Type

boolean

Default

False

Enable the preview Stack Abandon feature.

enable_stack_adopt

Type

boolean

Default

False

Enable the preview Stack Adopt feature.

convergence_engine

Type

boolean

Default

True

Enables engine with convergence architecture. All stacks with this option will be created using convergence engine.

observe_on_update

Type

boolean

Default

False

On update, enables heat to collect existing resource properties from reality and converge to updated template.

default_software_config_transport

Type

string

Default

POLL_SERVER_CFN

Valid Values

POLL_SERVER_CFN, POLL_SERVER_HEAT, POLL_TEMP_URL, ZAQAR_MESSAGE

Template default for how the server should receive the metadata required for software configuration. POLL_SERVER_CFN will allow calls to the cfn API action DescribeStackResource authenticated with the provided keypair (requires enabled heat-api-cfn). POLL_SERVER_HEAT will allow calls to the Heat API resource-show using the provided keystone credentials (requires keystone v3 API, and configured stack_user_* config options). POLL_TEMP_URL will create and populate a Swift TempURL with metadata for polling (requires object-store endpoint which supports TempURL).ZAQAR_MESSAGE will create a dedicated zaqar queue and post the metadata for polling.

default_deployment_signal_transport

Type

string

Default

CFN_SIGNAL

Valid Values

CFN_SIGNAL, TEMP_URL_SIGNAL, HEAT_SIGNAL, ZAQAR_SIGNAL

Template default for how the server should signal to heat with the deployment output values. CFN_SIGNAL will allow an HTTP POST to a CFN keypair signed URL (requires enabled heat-api-cfn). TEMP_URL_SIGNAL will create a Swift TempURL to be signaled via HTTP PUT (requires object-store endpoint which supports TempURL). HEAT_SIGNAL will allow calls to the Heat API resource-signal using the provided keystone credentials. ZAQAR_SIGNAL will create a dedicated zaqar queue to be signaled using the provided keystone credentials.

default_user_data_format

Type

string

Default

HEAT_CFNTOOLS

Valid Values

HEAT_CFNTOOLS, RAW, SOFTWARE_CONFIG

Template default for how the user_data should be formatted for the server. For HEAT_CFNTOOLS, the user_data is bundled as part of the heat-cfntools cloud-init boot configuration data. For RAW the user_data is passed to Nova unmodified. For SOFTWARE_CONFIG user_data is bundled as part of the software config data, and metadata is derived from any associated SoftwareDeployment resources.

hidden_stack_tags

Type

list

Default

['data-processing-cluster']

Stacks containing these tag names will be hidden. Multiple tags should be given in a comma-delimited list (eg. hidden_stack_tags=hide_me,me_too).

onready

Type

string

Default

<None>

Deprecated.

stack_scheduler_hints

Type

boolean

Default

False

When this feature is enabled, scheduler hints identifying the heat stack context of a server or volume resource are passed to the configured schedulers in nova and cinder, for creates done using heat resource types OS::Cinder::Volume, OS::Nova::Server, and AWS::EC2::Instance. heat_root_stack_id will be set to the id of the root stack of the resource, heat_stack_id will be set to the id of the resource’s parent stack, heat_stack_name will be set to the name of the resource’s parent stack, heat_path_in_stack will be set to a list of comma delimited strings of stackresourcename and stackname with list[0] being ‘rootstackname’, heat_resource_name will be set to the resource’s name, and heat_resource_uuid will be set to the resource’s orchestration id.

encrypt_parameters_and_properties

Type

boolean

Default

False

Encrypt template parameters that were marked as hidden and also all the resource properties before storing them in database.

periodic_interval

Type

integer

Default

60

Seconds between running periodic tasks.

heat_metadata_server_url

Type

string

Default

<None>

URL of the Heat metadata server. NOTE: Setting this is only needed if you require instances to use a different endpoint than in the keystone catalog

heat_waitcondition_server_url

Type

string

Default

<None>

URL of the Heat waitcondition server.

heat_watch_server_url

Type

string

Default

''

URL of the Heat CloudWatch server.

Warning

This option is deprecated for removal since 10.0.0. Its value may be silently ignored in the future.

Reason

Heat CloudWatch Service has been removed.

instance_connection_is_secure

Type

string

Default

0

Instance connection to CFN/CW API via https.

instance_connection_https_validate_certificates

Type

string

Default

1

Instance connection to CFN/CW API validate certs if SSL is used.

region_name_for_services

Type

string

Default

<None>

Default region name used to get services endpoints.

region_name_for_shared_services

Type

string

Default

<None>

Region name for shared services endpoints.

shared_services_types

Type

list

Default

['image', 'volume', 'volumev2']

The shared services located in the other region.Needs region_name_for_shared_services option to be set for this to take effect.

heat_stack_user_role

Type

string

Default

heat_stack_user

Keystone role for heat template-defined users.

stack_user_domain_id

Type

string

Default

<None>

Keystone domain ID which contains heat template-defined users. If this option is set, stack_user_domain_name option will be ignored.

Deprecated Variations

Group	Name
DEFAULT	stack_user_domain

stack_user_domain_name

Type

string

Default

<None>

Keystone domain name which contains heat template-defined users. If stack_user_domain_id option is set, this option is ignored.

stack_domain_admin

Type

string

Default

<None>

Keystone username, a user with roles sufficient to manage users and projects in the stack_user_domain.

stack_domain_admin_password

Type

string

Default

<None>

Keystone password for stack_domain_admin user.

max_template_size

Type

integer

Default

524288

Maximum raw byte size of any template.

max_nested_stack_depth

Type

integer

Default

5

Maximum depth allowed when using nested stacks.

num_engine_workers

Type

integer

Default

<None>

Number of heat-engine processes to fork and run. Will default to either to 4 or number of CPUs on the host, whichever is greater.

server_keystone_endpoint_type

Type

string

Default

''

Valid Values

‘’, public, internal, admin

If set, is used to control which authentication endpoint is used by user-controlled servers to make calls back to Heat. If unset www_authenticate_uri is used.

auth_encryption_key

Type

string

Default

notgood but just long enough i t

Key used to encrypt authentication info in the database. Length of this key must be 32 characters.

max_json_body_size

Type

integer

Default

1048576

Maximum raw byte size of JSON request body. Should be larger than max_template_size.

cloud_backend

Type

string

Default

heat.engine.clients.OpenStackClients

Fully qualified class name to use as a client backend.

keystone_backend

Type

string

Default

heat.engine.clients.os.keystone.heat_keystoneclient.KsClientWrapper

Fully qualified class name to use as a keystone backend.

default_notification_level

Type

string

Default

INFO

Default notification level for outgoing notifications.

default_publisher_id

Type

string

Default

<None>

Default publisher_id for outgoing notifications.

loadbalancer_template

Type

string

Default

<None>

Custom template for the built-in loadbalancer nested stack.

run_external_periodic_tasks

Type

boolean

Default

True

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

backdoor_port

Type

string

Default

<None>

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.

backdoor_socket

Type

string

Default

<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. Inside the path {pid} will be replaced with the PID of the current process.

log_options

Type

boolean

Default

True

Enables or disables logging values of all registered options when starting a service (at DEBUG level).

graceful_shutdown_timeout

Type

integer

Default

60

Specify a timeout after which a gracefully shutdown server will exit. Zero value means endless wait.

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']

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.

rpc_conn_pool_size

Type

integer

Default

30

Minimum Value

1

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.

rpc_ping_enabled

Type

boolean

Default

False

Add an endpoint to answer to ping calls. Endpoint is named oslo_rpc_server_ping

auth_password

multi_cloud

Type

boolean

Default

False

Allow orchestration of multiple clouds.

allowed_auth_uris

Type

list

Default

[]

Allowed keystone endpoints for auth_uri when multi_cloud is enabled. At least one endpoint needs to be specified.

clients

endpoint_type

Type

string

Default

publicURL

Type of endpoint in Identity service catalog to use for communication with the OpenStack service.

ca_file

Type

string

Default

<None>

Optional CA cert file to use in SSL connections.

cert_file

Type

string

Default

<None>

Optional PEM-formatted certificate chain file.

key_file

Type

string

Default

<None>

Optional PEM-formatted file that contains the private key.

insecure

Type

boolean

Default

False

If set, then the server’s certificate will not be verified.

clients_aodh

endpoint_type

Type

string

Default

<None>

Type of endpoint in Identity service catalog to use for communication with the OpenStack service.

ca_file

Type

string

Default

<None>

Optional CA cert file to use in SSL connections.

cert_file

Type

string

Default

<None>

Optional PEM-formatted certificate chain file.

key_file

Type

string

Default

<None>

Optional PEM-formatted file that contains the private key.

insecure

Type

boolean

Default

<None>

If set, then the server’s certificate will not be verified.

clients_barbican

endpoint_type

Type

string

Default

<None>

Type of endpoint in Identity service catalog to use for communication with the OpenStack service.

ca_file

Type

string

Default

<None>

Optional CA cert file to use in SSL connections.

cert_file

Type

string

Default

<None>

Optional PEM-formatted certificate chain file.

key_file

Type

string

Default

<None>

Optional PEM-formatted file that contains the private key.

insecure

Type

boolean

Default

<None>

If set, then the server’s certificate will not be verified.

clients_cinder

endpoint_type

Type

string

Default

<None>

Type of endpoint in Identity service catalog to use for communication with the OpenStack service.

ca_file

Type

string

Default

<None>

Optional CA cert file to use in SSL connections.

cert_file

Type

string

Default

<None>

Optional PEM-formatted certificate chain file.

key_file

Type

string

Default

<None>

Optional PEM-formatted file that contains the private key.

insecure

Type

boolean

Default

<None>

If set, then the server’s certificate will not be verified.

http_log_debug

Type

boolean

Default

False

Allow client’s debug log output.

clients_designate

endpoint_type

Type

string

Default

<None>

Type of endpoint in Identity service catalog to use for communication with the OpenStack service.

ca_file

Type

string

Default

<None>

Optional CA cert file to use in SSL connections.

cert_file

Type

string

Default

<None>

Optional PEM-formatted certificate chain file.

key_file

Type

string

Default

<None>

Optional PEM-formatted file that contains the private key.

insecure

Type

boolean

Default

<None>

If set, then the server’s certificate will not be verified.

clients_glance

endpoint_type

Type

string

Default

<None>

Type of endpoint in Identity service catalog to use for communication with the OpenStack service.

ca_file

Type

string

Default

<None>

Optional CA cert file to use in SSL connections.

cert_file

Type

string

Default

<None>

Optional PEM-formatted certificate chain file.

key_file

Type

string

Default

<None>

Optional PEM-formatted file that contains the private key.

insecure

Type

boolean

Default

<None>

If set, then the server’s certificate will not be verified.

clients_heat

endpoint_type

Type

string

Default

<None>

Type of endpoint in Identity service catalog to use for communication with the OpenStack service.

ca_file

Type

string

Default

<None>

Optional CA cert file to use in SSL connections.

cert_file

Type

string

Default

<None>

Optional PEM-formatted certificate chain file.

key_file

Type

string

Default

<None>

Optional PEM-formatted file that contains the private key.

insecure

Type

boolean

Default

<None>

If set, then the server’s certificate will not be verified.

url

Type

string

Default

''

Optional heat url in format like http://0.0.0.0:8004/v1/%(tenant_id)s.

clients_keystone

endpoint_type

Type

string

Default

<None>

Type of endpoint in Identity service catalog to use for communication with the OpenStack service.

ca_file

Type

string

Default

<None>

Optional CA cert file to use in SSL connections.

cert_file

Type

string

Default

<None>

Optional PEM-formatted certificate chain file.

key_file

Type

string

Default

<None>

Optional PEM-formatted file that contains the private key.

insecure

Type

boolean

Default

<None>

If set, then the server’s certificate will not be verified.

auth_uri

Type

string

Default

''

Unversioned keystone url in format like http://0.0.0.0:5000.

clients_magnum

endpoint_type

Type

string

Default

<None>

Type of endpoint in Identity service catalog to use for communication with the OpenStack service.

ca_file

Type

string

Default

<None>

Optional CA cert file to use in SSL connections.

cert_file

Type

string

Default

<None>

Optional PEM-formatted certificate chain file.

key_file

Type

string

Default

<None>

Optional PEM-formatted file that contains the private key.

insecure

Type

boolean

Default

<None>

If set, then the server’s certificate will not be verified.

clients_manila

endpoint_type

Type

string

Default

<None>

Type of endpoint in Identity service catalog to use for communication with the OpenStack service.

ca_file

Type

string

Default

<None>

Optional CA cert file to use in SSL connections.

cert_file

Type

string

Default

<None>

Optional PEM-formatted certificate chain file.

key_file

Type

string

Default

<None>

Optional PEM-formatted file that contains the private key.

insecure

Type

boolean

Default

<None>

If set, then the server’s certificate will not be verified.

clients_mistral

endpoint_type

Type

string

Default

<None>

Type of endpoint in Identity service catalog to use for communication with the OpenStack service.

ca_file

Type

string

Default

<None>

Optional CA cert file to use in SSL connections.

cert_file

Type

string

Default

<None>

Optional PEM-formatted certificate chain file.

key_file

Type

string

Default

<None>

Optional PEM-formatted file that contains the private key.

insecure

Type

boolean

Default

<None>

If set, then the server’s certificate will not be verified.

clients_monasca

endpoint_type

Type

string

Default

<None>

Type of endpoint in Identity service catalog to use for communication with the OpenStack service.

ca_file

Type

string

Default

<None>

Optional CA cert file to use in SSL connections.

cert_file

Type

string

Default

<None>

Optional PEM-formatted certificate chain file.

key_file

Type

string

Default

<None>

Optional PEM-formatted file that contains the private key.

insecure

Type

boolean

Default

<None>

If set, then the server’s certificate will not be verified.

clients_neutron

endpoint_type

Type

string

Default

<None>

Type of endpoint in Identity service catalog to use for communication with the OpenStack service.

ca_file

Type

string

Default

<None>

Optional CA cert file to use in SSL connections.

cert_file

Type

string

Default

<None>

Optional PEM-formatted certificate chain file.

key_file

Type

string

Default

<None>

Optional PEM-formatted file that contains the private key.

insecure

Type

boolean

Default

<None>

If set, then the server’s certificate will not be verified.

clients_nova

endpoint_type

Type

string

Default

<None>

Type of endpoint in Identity service catalog to use for communication with the OpenStack service.

ca_file

Type

string

Default

<None>

Optional CA cert file to use in SSL connections.

cert_file

Type

string

Default

<None>

Optional PEM-formatted certificate chain file.

key_file

Type

string

Default

<None>

Optional PEM-formatted file that contains the private key.

insecure

Type

boolean

Default

<None>

If set, then the server’s certificate will not be verified.

http_log_debug

Type

boolean

Default

False

Allow client’s debug log output.

clients_octavia

endpoint_type

Type

string

Default

<None>

Type of endpoint in Identity service catalog to use for communication with the OpenStack service.

ca_file

Type

string

Default

<None>

Optional CA cert file to use in SSL connections.

cert_file

Type

string

Default

<None>

Optional PEM-formatted certificate chain file.

key_file

Type

string

Default

<None>

Optional PEM-formatted file that contains the private key.

insecure

Type

boolean

Default

<None>

If set, then the server’s certificate will not be verified.

clients_sahara

endpoint_type

Type

string

Default

<None>

Type of endpoint in Identity service catalog to use for communication with the OpenStack service.

ca_file

Type

string

Default

<None>

Optional CA cert file to use in SSL connections.

cert_file

Type

string

Default

<None>

Optional PEM-formatted certificate chain file.

key_file

Type

string

Default

<None>

Optional PEM-formatted file that contains the private key.

insecure

Type

boolean

Default

<None>

If set, then the server’s certificate will not be verified.

clients_senlin

endpoint_type

Type

string

Default

<None>

Type of endpoint in Identity service catalog to use for communication with the OpenStack service.

ca_file

Type

string

Default

<None>

Optional CA cert file to use in SSL connections.

cert_file

Type

string

Default

<None>

Optional PEM-formatted certificate chain file.

key_file

Type

string

Default

<None>

Optional PEM-formatted file that contains the private key.

insecure

Type

boolean

Default

<None>

If set, then the server’s certificate will not be verified.

clients_swift

endpoint_type

Type

string

Default

<None>

Type of endpoint in Identity service catalog to use for communication with the OpenStack service.

ca_file

Type

string

Default

<None>

Optional CA cert file to use in SSL connections.

cert_file

Type

string

Default

<None>

Optional PEM-formatted certificate chain file.

key_file

Type

string

Default

<None>

Optional PEM-formatted file that contains the private key.

insecure

Type

boolean

Default

<None>

If set, then the server’s certificate will not be verified.

clients_trove

endpoint_type

Type

string

Default

<None>

Type of endpoint in Identity service catalog to use for communication with the OpenStack service.

ca_file

Type

string

Default

<None>

Optional CA cert file to use in SSL connections.

cert_file

Type

string

Default

<None>

Optional PEM-formatted certificate chain file.

key_file

Type

string

Default

<None>

Optional PEM-formatted file that contains the private key.

insecure

Type

boolean

Default

<None>

If set, then the server’s certificate will not be verified.

clients_vitrage

endpoint_type

Type

string

Default

<None>

Type of endpoint in Identity service catalog to use for communication with the OpenStack service.

ca_file

Type

string

Default

<None>

Optional CA cert file to use in SSL connections.

cert_file

Type

string

Default

<None>

Optional PEM-formatted certificate chain file.

key_file

Type

string

Default

<None>

Optional PEM-formatted file that contains the private key.

insecure

Type

boolean

Default

<None>

If set, then the server’s certificate will not be verified.

clients_zaqar

endpoint_type

Type

string

Default

<None>

Type of endpoint in Identity service catalog to use for communication with the OpenStack service.

ca_file

Type

string

Default

<None>

Optional CA cert file to use in SSL connections.

cert_file

Type

string

Default

<None>

Optional PEM-formatted certificate chain file.

key_file

Type

string

Default

<None>

Optional PEM-formatted file that contains the private key.

insecure

Type

boolean

Default

<None>

If set, then the server’s certificate will not be verified.

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&…

ec2authtoken

auth_uri

Type

string

Default

<None>

Authentication Endpoint URI.

multi_cloud

Type

boolean

Default

False

Allow orchestration of multiple clouds.

allowed_auth_uris

Type

list

Default

[]

Allowed keystone endpoints for auth_uri when multi_cloud is enabled. At least one endpoint needs to be specified.

cert_file

Type

string

Default

<None>

Optional PEM-formatted certificate chain file.

key_file

Type

string

Default

<None>

Optional PEM-formatted file that contains the private key.

ca_file

Type

string

Default

<None>

Optional CA cert file to use in SSL connections.

insecure

Type

boolean

Default

False

If set, then the server’s certificate will not be verified.

eventlet_opts

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.

healthcheck

path

Type

string

Default

/healthcheck

The path to respond to healtcheck requests on.

Warning

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

detailed

Type

boolean

Default

False

Show more detailed information as part of the response. Security note: Enabling this option may expose sensitive details about the service being monitored. Be sure to verify that it will not violate your security policies.

backends

Type

list

Default

[]

Additional backends that can perform health checks and report that information back as part of a request.

disable_by_file_path

Type

string

Default

<None>

Check the presence of a file to determine if an application is running on a port. Used by DisableByFileHealthcheck plugin.

disable_by_file_paths

Type

list

Default

[]

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.

heat_api

bind_host

Type

ip address

Default

0.0.0.0

Address to bind the server. Useful when selecting a particular network interface.

Deprecated Variations

Group	Name
DEFAULT	bind_host

bind_port

Type

port number

Default

8004

Minimum Value

0

Maximum Value

65535

The port on which the server will listen.

Deprecated Variations

Group	Name
DEFAULT	bind_port

backlog

Type

integer

Default

4096

Number of backlog requests to configure the socket with.

Deprecated Variations

Group	Name
DEFAULT	backlog

cert_file

Type

string

Default

<None>

Location of the SSL certificate file to use for SSL mode.

Deprecated Variations

Group	Name
DEFAULT	cert_file

key_file

Type

string

Default

<None>

Location of the SSL key file to use for enabling SSL mode.

Deprecated Variations

Group	Name
DEFAULT	key_file

workers

Type

integer

Default

0

Minimum Value

0

Number of workers for Heat service. Default value 0 means, that service will start number of workers equal number of cores on server.

Deprecated Variations

Group	Name
DEFAULT	workers

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 by the Keystone v3 API with big service catalogs).

tcp_keepidle

Type

integer

Default

600

The value for the socket option TCP_KEEPIDLE. This is the time in seconds that the connection must be idle before TCP starts sending keepalive probes.

heat_api_cfn

bind_host

Type

ip address

Default

0.0.0.0

Address to bind the server. Useful when selecting a particular network interface.

Deprecated Variations

Group	Name
DEFAULT	bind_host

bind_port

Type

port number

Default

8000

Minimum Value

0

Maximum Value

65535

The port on which the server will listen.

Deprecated Variations

Group	Name
DEFAULT	bind_port

backlog

Type

integer

Default

4096

Number of backlog requests to configure the socket with.

Deprecated Variations

Group	Name
DEFAULT	backlog

cert_file

Type

string

Default

<None>

Location of the SSL certificate file to use for SSL mode.

Deprecated Variations

Group	Name
DEFAULT	cert_file

key_file

Type

string

Default

<None>

Location of the SSL key file to use for enabling SSL mode.

Deprecated Variations

Group	Name
DEFAULT	key_file

workers

Type

integer

Default

1

Minimum Value

0

Number of workers for Heat service.

Deprecated Variations

Group	Name
DEFAULT	workers

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 by the Keystone v3 API with big service catalogs).

tcp_keepidle

Type

integer

Default

600

The value for the socket option TCP_KEEPIDLE. This is the time in seconds that the connection must be idle before TCP starts sending keepalive probes.

heat_api_cloudwatch

bind_host

Type

ip address

Default

0.0.0.0

Address to bind the server. Useful when selecting a particular network interface.

Deprecated Variations

Group	Name
DEFAULT	bind_host

Warning

This option is deprecated for removal since 10.0.0. Its value may be silently ignored in the future.

Reason

Heat CloudWatch API has been removed.

bind_port

Type

port number

Default

8003

Minimum Value

0

Maximum Value

65535

The port on which the server will listen.

Deprecated Variations

Group	Name
DEFAULT	bind_port

Warning

This option is deprecated for removal since 10.0.0. Its value may be silently ignored in the future.

Reason

Heat CloudWatch API has been removed.

backlog

Type

integer

Default

4096

Number of backlog requests to configure the socket with.

Deprecated Variations

Group	Name
DEFAULT	backlog

Warning

This option is deprecated for removal since 10.0.0. Its value may be silently ignored in the future.

Reason

Heat CloudWatch API has been removed.

cert_file

Type

string

Default

<None>

Location of the SSL certificate file to use for SSL mode.

Deprecated Variations

Group	Name
DEFAULT	cert_file

Warning

This option is deprecated for removal since 10.0.0. Its value may be silently ignored in the future.

Reason

Heat CloudWatch API has been Removed.

key_file

Type

string

Default

<None>

Location of the SSL key file to use for enabling SSL mode.

Deprecated Variations

Group	Name
DEFAULT	key_file

Warning

This option is deprecated for removal since 10.0.0. Its value may be silently ignored in the future.

Reason

Heat CloudWatch API has been Removed.

workers

Type

integer

Default

1

Minimum Value

0

Number of workers for Heat service.

Deprecated Variations

Group	Name
DEFAULT	workers

Warning

This option is deprecated for removal since 10.0.0. Its value may be silently ignored in the future.

Reason

Heat CloudWatch API has been Removed.

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 by the Keystone v3 API with big service catalogs.)

Warning

This option is deprecated for removal since 10.0.0. Its value may be silently ignored in the future.

Reason

Heat CloudWatch API has been Removed.

tcp_keepidle

Type

integer

Default

600

The value for the socket option TCP_KEEPIDLE. This is the time in seconds that the connection must be idle before TCP starts sending keepalive probes.

Warning

This option is deprecated for removal since 10.0.0. Its value may be silently ignored in the future.

Reason

Heat CloudWatch API has been Removed.

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

internal

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

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

noauth

token_response

Type

string

Default

''

JSON file containing the content returned by the noauth middleware.

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

link_retry_delay

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.

default_sender_link_timeout

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’

reply_link_credit

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. If not set, compression will not be used. Note that the allowed values of this depend 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

ssl_client_cert_file

Type

string

Default

''

Client certificate PEM file used for authentication.

ssl_client_key_file

Type

string

Default

''

Client key PEM file used for authentication.

ssl_client_key_password

Type

string

Default

''

Client key password file used for authentication.

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

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

heartbeat_in_pthread

Type

boolean

Default

True

Run the health check heartbeat thread through a native python thread by default. If this option is equal to False then the health check heartbeat will inherit the execution model from the parent process. For example if the parent process has monkey patched the stdlib by using eventlet/greenlet then the heartbeat will be run through a green thread.

Warning

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

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.

direct_mandatory_flag

Type

boolean

Default

True

(DEPRECATED) Enable/Disable the RabbitMQ mandatory flag for direct send. The direct send is used as reply, so the MessageUndeliverable exception is raised in case the client queue does not exist.MessageUndeliverable exception will be used to loop for a timeout to lets a chance to sender to recover.This flag is deprecated and it will not be possible to deactivate this functionality anymore

Warning

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

Reason

Mandatory flag no longer deactivable.

enable_cancel_on_failover

Type

boolean

Default

False

Enable x-cancel-on-ha-failover flag so that rabbitmq server will cancel and notify consumerswhen queue is down

oslo_middleware

max_request_body_size

Type

integer

Default

114688

The maximum body size for each request, in bytes.

Deprecated Variations

Group	Name
DEFAULT	osapi_max_request_body_size
DEFAULT	max_request_body_size

secure_proxy_ssl_header

Type

string

Default

X-Forwarded-Proto

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.

Warning

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

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.

enforce_new_defaults

Type

boolean

Default

False

This option controls whether or not to use old deprecated defaults when evaluating policies. If True, the old deprecated defaults are not going to be evaluated. This means if any existing token is allowed for old defaults but is disallowed for new defaults, it will be disallowed. It is encouraged to enable this flag along with the enforce_scope flag so that you can get the benefits of new defaults and scope_type together

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

paste_deploy

flavor

Type

string

Default

<None>

The flavor to use.

api_paste_config

Type

string

Default

api-paste.ini

The API paste config file to use.

profiler

enabled

Type

boolean

Default

False

Enable the profiling for all services on this node.

Default value is False (fully disable the profiling feature).

Possible values:

• True: Enables the feature

• False: Disables the feature. The profiling cannot be started via this project operations. If the profiling is triggered by another project, this project part will be empty.

Deprecated Variations

Group	Name
profiler	profiler_enabled

trace_sqlalchemy

Type

boolean

Default

False

Enable SQL requests profiling in services.

Default value is False (SQL requests won’t be traced).

Possible values:

• True: Enables SQL requests profiling. Each SQL query will be part of the trace and can the be analyzed by how much time was spent for that.

• False: Disables SQL requests profiling. The spent time is only shown on a higher level of operations. Single SQL queries cannot be analyzed this way.

hmac_keys

Type

string

Default

SECRET_KEY

Secret key(s) to use for encrypting context data for performance profiling.

This string value should have the following format: <key1>[,<key2>,…<keyn>], where each key is some random string. A user who triggers the profiling via the REST API has to set one of these keys in the headers of the REST API call to include profiling results of this node for this particular project.

Both “enabled” flag and “hmac_keys” config options should be set to enable profiling. Also, to generate correct profiling information across all services at least one key needs to be consistent between OpenStack projects. This ensures it can be used from client side to generate the trace, containing information from all possible resources.

connection_string

Type

string

Default

messaging://

Connection string for a notifier backend.

Default value is messaging:// which sets the notifier to oslo_messaging.

Examples of possible values:

• messaging:// - use oslo_messaging driver for sending spans.

• redis://127.0.0.1:6379 - use redis driver for sending spans.

• mongodb://127.0.0.1:27017 - use mongodb driver for sending spans.

• elasticsearch://127.0.0.1:9200 - use elasticsearch driver for sending spans.

• jaeger://127.0.0.1:6831 - use jaeger tracing as driver for sending spans.

es_doc_type

Type

string

Default

notification

Document type for notification indexing in elasticsearch.

es_scroll_time

Type

string

Default

2m

This parameter is a time value parameter (for example: es_scroll_time=2m), indicating for how long the nodes that participate in the search will maintain relevant resources in order to continue and support it.

es_scroll_size

Type

integer

Default

10000

Elasticsearch splits large requests in batches. This parameter defines maximum size of each batch (for example: es_scroll_size=10000).

socket_timeout

Type

floating point

Default

0.1

Redissentinel provides a timeout option on the connections. This parameter defines that timeout (for example: socket_timeout=0.1).

sentinel_service_name

Type

string

Default

mymaster

Redissentinel uses a service name to identify a master redis service. This parameter defines the name (for example: sentinal_service_name=mymaster).

filter_error_trace

Type

boolean

Default

False

Enable filter traces that contain error/exception to a separated place.

Default value is set to False.

Possible values:

• True: Enable filter traces that contain error/exception.

• False: Disable the filter.

revision

heat_revision

Type

string

Default

unknown

Heat build revision. If you would prefer to manage your build revision separately, you can move this section to a different file and add it as another config option.

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.

trustee

auth_type

Type

unknown type

Default

<None>

Authentication type to load

Deprecated Variations

Group	Name
trustee	auth_plugin

auth_section

Type

unknown type

Default

<None>

Config Section from which to load plugin specific options

auth_url

Type

unknown type

Default

<None>

Authentication URL

system_scope

Type

unknown type

Default

<None>

Scope for system operations

domain_id

Type

unknown type

Default

<None>

Domain ID to scope to

domain_name

Type

unknown type

Default

<None>

Domain name to scope to

project_id

Type

unknown type

Default

<None>

Project ID to scope to

Deprecated Variations

Group	Name
trustee	tenant-id
trustee	tenant_id

project_name

Type

unknown type

Default

<None>

Project name to scope to

Deprecated Variations

Group	Name
trustee	tenant-name
trustee	tenant_name

project_domain_id

Type

unknown type

Default

<None>

Domain ID containing project

project_domain_name

Type

unknown type

Default

<None>

Domain name containing project

trust_id

Type

unknown type

Default

<None>

Trust ID

default_domain_id

Type

unknown type

Default

<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.

default_domain_name

Type

unknown type

Default

<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.

user_id

Type

unknown type

Default

<None>

User id

username

Type

unknown type

Default

<None>

Username

Deprecated Variations

Group	Name
trustee	user-name
trustee	user_name

user_domain_id

Type

unknown type

Default

<None>

User’s domain id

user_domain_name

Type

unknown type

Default

<None>

User’s domain name

password

Type

unknown type

Default

<None>

User’s password

volumes

backups_enabled

Type

boolean

Default

True

Indicate if cinder-backup service is enabled. This is a temporary workaround until cinder-backup service becomes discoverable, see LP#1334856.