Additional configuration options for Orchestration service

updated: 2020-07-27 17:43

Additional configuration options for Orchestration service

These options can also be set in the heat.conf file.

Description of common configuration options
Configuration option = Default value Description
[DEFAULT]  
client_retry_limit = 2 (Integer) Number of times to retry when a client encounters an expected intermittent error. Set to 0 to disable retries.
convergence_engine = True (Boolean) Enables engine with convergence architecture. All stacks with this option will be created using convergence engine.
default_deployment_signal_transport = CFN_SIGNAL (String) 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_software_config_transport = POLL_SERVER_CFN (String) 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_user_data_format = HEAT_CFNTOOLS (String) 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.
deferred_auth_method = trusts (String) Select deferred auth method, stored password or trusts.
environment_dir = /etc/heat/environment.d (String) The directory to search for environment files.
error_wait_time = 240 (Integer) The amount of time in seconds after an error has occurred that tasks may continue to run before being cancelled.
event_purge_batch_size = 200 (Integer) 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.
executor_thread_pool_size = 64 (Integer) Size of executor thread pool.
host = localhost (String) Name of the engine node. This can be an opaque identifier. It is not necessarily a hostname, FQDN, or IP address.
keystone_backend = heat.engine.clients.os.keystone.heat_keystoneclient.KsClientWrapper (String) Fully qualified class name to use as a keystone backend.
max_interface_check_attempts = 10 (Integer) Number of times to check whether an interface has been attached or detached.
periodic_interval = 60 (Integer) Seconds between running periodic tasks.
plugin_dirs = /usr/lib64/heat, /usr/lib/heat, /usr/local/lib/heat, /usr/local/lib64/heat (List) List of directories to search for plug-ins.
reauthentication_auth_method = (String) Allow reauthentication on token expiry, such that long-running tasks may complete. Note this defeats the expiry of any provided user tokens.
template_dir = /etc/heat/templates (String) The directory to search for template files.
[constraint_validation_cache]  
caching = True (Boolean) Toggle to enable/disable caching when Orchestration Engine validates property constraints of stack.During property validation with constraints Orchestration Engine caches requests to other OpenStack services. Please note that the global toggle for oslo.cache(enabled=True in [cache] group) must be enabled to use this feature.
expiration_time = 60 (Integer) TTL, in seconds, for any cached item in the dogpile.cache region used for caching of validation constraints.
[healthcheck]  
backends = (List) Additional backends that can perform health checks and report that information back as part of a request.
detailed = False (Boolean) Show more detailed information as part of the response
disable_by_file_path = None (String) Check the presence of a file to determine if an application is running on a port. Used by DisableByFileHealthcheck plugin.
disable_by_file_paths = (List) 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.
path = /healthcheck (String) DEPRECATED: The path to respond to healtcheck requests on.
[heat_all]  
enabled_services = engine, api, api_cfn (List) Specifies the heat services that are enabled when running heat-all. Valid options are all or any combination of api, engine or api_cfn.
[profiler]  
connection_string = messaging://

(String) 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 notifications.
  • mongodb://127.0.0.1:27017 : use mongodb driver for sending notifications.
  • elasticsearch://127.0.0.1:9200 : use elasticsearch driver for sending notifications.
enabled = False

(Boolean) Enables 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.
es_doc_type = notification (String) Document type for notification indexing in elasticsearch.
es_scroll_size = 10000 (Integer) Elasticsearch splits large requests in batches. This parameter defines maximum size of each batch (for example: es_scroll_size=10000).
es_scroll_time = 2m (String) 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.
hmac_keys = SECRET_KEY

(String) 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.
sentinel_service_name = mymaster (String) Redissentinel uses a service name to identify a master redis service. This parameter defines the name (for example: sentinal_service_name=mymaster).
socket_timeout = 0.1 (Floating point) Redissentinel provides a timeout option on the connections. This parameter defines that timeout (for example: socket_timeout=0.1).
trace_sqlalchemy = False

(Boolean) Enables 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.
[resource_finder_cache]  
caching = True (Boolean) Toggle to enable/disable caching when Orchestration Engine looks for other OpenStack service resources using name or id. Please note that the global toggle for oslo.cache(enabled=True in [cache] group) must be enabled to use this feature.
expiration_time = 3600 (Integer) TTL, in seconds, for any cached item in the dogpile.cache region used for caching of OpenStack service finder functions.
[revision]  
heat_revision = unknown (String) 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.
[service_extension_cache]  
caching = True (Boolean) Toggle to enable/disable caching when Orchestration Engine retrieves extensions from other OpenStack services. Please note that the global toggle for oslo.cache(enabled=True in [cache] group) must be enabled to use this feature.
expiration_time = 3600 (Integer) TTL, in seconds, for any cached item in the dogpile.cache region used for caching of service extensions.
[volumes]  
backups_enabled = True (Boolean) Indicate if cinder-backup service is enabled. This is a temporary workaround until cinder-backup service becomes discoverable, see LP#1334856.
[yaql]  
limit_iterators = 200 (Integer) The maximum number of elements in collection expression can take for its evaluation.
memory_quota = 10000 (Integer) The maximum size of memory in bytes that expression can take for its evaluation.
Description of crypt configuration options
Configuration option = Default value Description
[DEFAULT]  
auth_encryption_key = notgood but just long enough i t (String) Key used to encrypt authentication info in the database. Length of this key must be 32 characters.
Description of load balancer configuration options
Configuration option = Default value Description
[DEFAULT]  
loadbalancer_template = None (String) Custom template for the built-in loadbalancer nested stack.
Description of quota configuration options
Configuration option = Default value Description
[DEFAULT]  
max_events_per_stack = 1000 (Integer) 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.
max_nested_stack_depth = 5 (Integer) Maximum depth allowed when using nested stacks.
max_resources_per_stack = 1000 (Integer) Maximum resources allowed per top-level stack. -1 stands for unlimited.
max_server_name_length = 53 (Integer) Maximum length of a server name to be used in nova.
max_stacks_per_tenant = 100 (Integer) Maximum number of stacks any one tenant may have active at one time.
max_template_size = 524288 (Integer) Maximum raw byte size of any template.
Description of Redis configuration options
Configuration option = Default value Description
[matchmaker_redis]  
check_timeout = 20000 (Integer) Time in ms to wait before the transaction is killed.
host = 127.0.0.1 (String) DEPRECATED: Host to locate redis. Replaced by [DEFAULT]/transport_url
password = (String) DEPRECATED: Password for Redis server (optional). Replaced by [DEFAULT]/transport_url
port = 6379 (Port number) DEPRECATED: Use this port to connect to redis host. Replaced by [DEFAULT]/transport_url
sentinel_group_name = oslo-messaging-zeromq (String) Redis replica set name.
sentinel_hosts = (List) DEPRECATED: List of Redis Sentinel hosts (fault tolerance mode), e.g., [host:port, host1:port … ] Replaced by [DEFAULT]/transport_url
socket_timeout = 10000 (Integer) Timeout in ms on blocking socket operations.
wait_timeout = 2000 (Integer) Time in ms to wait between connection attempts.
Description of testing configuration options
Configuration option = Default value Description
[profiler]  
connection_string = messaging://

(String) 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 notifications.
enabled = False

(Boolean) Enables 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.
hmac_keys = SECRET_KEY

(String) 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.
trace_sqlalchemy = False

(Boolean) Enables 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.
Description of trustee configuration options
Configuration option = Default value Description
[trustee]  
auth_section = None (Unknown) Config Section from which to load plugin specific options
auth_type = None (Unknown) Authentication type to load
updated: 2020-07-27 17:43
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