RevisionReason(value)Reasons specific to Revision resource.
Values: REVISION_REASON_UNDEFINED (0): Default value. PENDING (1): Revision in Pending state. RESERVE (2): Revision is in Reserve state. RETIRED (3): Revision is Retired. RETIRING (4): Revision is being retired. RECREATING (5): Revision is being recreated. HEALTH_CHECK_CONTAINER_ERROR (6): There was a health check error. CUSTOMIZED_PATH_RESPONSE_PENDING (7): Health check failed due to user error from customized path of the container. System will retry. MIN_INSTANCES_NOT_PROVISIONED (8): A revision with min_instance_count > 0 was created and is reserved, but it was not configured to serve traffic, so it's not live. This can also happen momentarily during traffic migration. ACTIVE_REVISION_LIMIT_REACHED (9): The maximum allowed number of active revisions has been reached. NO_DEPLOYMENT (10): There was no deployment defined. This value is no longer used, but Services created in older versions of the API might contain this value. HEALTH_CHECK_SKIPPED (11): A revision's container has no port specified since the revision is of a manually scaled service with 0 instance count MIN_INSTANCES_WARMING (12): A revision with min_instance_count > 0 was created and is waiting for enough instances to begin a traffic migration.