Features of the script include:
- creating and removing a snapshot within Ceph for a PV
- backing up and restoring a PV within Ceph
- listing the RBD image details (watchers, thin/thick provisioned
usage, image properties) and snapshot information
Take note that all backups are by default stored locally in
"/var/lib/openstack-helm/ceph/backup" on the POD hosting this
utility container
Change-Id: I5de30d5337754a411b5e1162a215596afb469bac
