We copy-paste the same play into various playbooks to detect
openstack_release. This change factors that code into a separate
playbook that is imported.
Change-Id: I5fea005642b960080bf5e43455618dc24766c386
blueprint database-backup-recovery
Introduce a new option, mariadb_backup, which takes a backup of all
databases hosted in MariaDB.
Backups are performed using XtraBackup, the output of which is saved to
a dedicated Docker volume on the target host (which defaults to the
first node in the MariaDB cluster).
It supports either full (the default) or incremental backups.
Change-Id: Ied224c0d19b8734aa72092aaddd530155999dbc3
