this playbook can backup or restore some ceph files.
(/etc/ceph, /var/lib/ceph, ...)

Closes: https://bugzilla.redhat.com/show_bug.cgi?id=2051640

Signed-off-by: Guillaume Abrioux <[email protected]>
(cherry picked from commit ed0bba4d770d7b886de83efe25d482e08d558f97)