Merge "Add commands for database backup and recovery"

ansible/group_vars/all/kolla

ansible/kolla-openstack.yml

ansible/roles/kolla-ansible/vars/main.yml

ansible/roles/kolla-openstack/defaults/main.yml

...s/kolla-openstack/molecule/enable-everything/molecule.yml

...penstack/molecule/enable-everything/tests/test_default.py

ansible/roles/kolla-openstack/tasks/config.yml

ansible/roles/kolla-openstack/templates/backup.my.cnf.j2

ansible/roles/kolla-openstack/vars/main.yml

doc/source/administration/overcloud.rst

kayobe/cli/commands.py

kayobe/tests/unit/cli/test_commands.py

releasenotes/notes/db-backup-recovery-d4f1ced2ebd7dac4.yaml

setup.cfg