user_variables.yml

cinder_ceph_client: cinder

container_vars:
cinder_backends:
    limit_container_types: cinder_volume
    rbd_backend:
      volume_driver: cinder.volume.drivers.rbd.RBDDriver
      rbd_pool: volumes
      rbd_ceph_conf: /etc/ceph/ceph.conf
      rbd_flatten_volume_from_snapshot: 'false'
      rbd_max_clone_depth: 5
      rbd_store_chunk_size: 4
      rados_connect_timeout: 30
      volume_backend_name: rbd
      rbd_user: "{{ cinder_ceph_client }}"
      rbd_secret_uuid: "{{ cinder_ceph_client_uuid }}"
      report_discard_supported: true

env.d/cinder-volume.yml
container_skel:
  cinder_volumes_container:
    properties:
      is_metal: false