--- - hosts: nova_api vars: metadata: name: Nova Status Upgrade Check description: | Performs a release-specific readiness check before restarting services with new code. This command expects to have complete configuration and access to databases and services within a cell. For example, this check may query the Nova API database and one or more cell databases. It may also make requests to other services such as the Placement REST API via the Keystone service catalog The nova-status upgrade check command has three standard return codes: 0 -> All upgrade readiness checks passed successfully and there is nothing to do. 1 -> At least one check encountered an issue and requires further investigation. This is considered a warning but the upgrade may be OK. 2 -> There was an upgrade status check failure that needs to be investigated. This should be considered something that stops an upgrade. groups: - pre-upgrade roles: - nova_status