I got a similar issue with the cinder-ceph subordinate:
2016-01-16 17:20:09 ERROR juju-log storage-backend:32: FATAL ERROR: Could not determine OpenStack codename for version 7.0.1 2016-01-16 17:20:09 ERROR juju.worker.uniter.operation runhook.go:107 hook "storage-backend-relation-changed" failed: exit status 1
I got a similar issue with the cinder-ceph subordinate:
2016-01-16 17:20:09 ERROR juju-log storage-backend:32: FATAL ERROR: Could not determine OpenStack codename for version 7.0.1 uniter. operation runhook.go:107 hook "storage- backend- relation- changed" failed: exit status 1
2016-01-16 17:20:09 ERROR juju.worker.