
When using external Ceph cluster, glance_api container is only running on one controller instead of running on all of them. But when an external Ceph cluster is used, enable_ceph is false so glance_backend_file is true Using "not glance_backend_ceph | bool" instead of "not enable_ceph | bool" should be enough. Change-Id: I191e5ea7a0d51b0e19ed58a819c3ade5070f623d Closes-Bug: #1722905