nova/compute/storage/ceph.yml

parameters:
  nova:
    compute:
      ceph:
        enabled: true
        ephemeral: yes
        rbd_pool: ${_param:nova_storage_pool}
        secret_uuid: ${_param:nova_storage_secret_uuid}
        client_cinder_key: ${_param:nova_storage_secret_uuid}
        rbd_user: ${_param:nova_storage_user}