Without host mode the docker container id

is referenced in volume name.

roles/cinder-storage/templates/cinder-storage.service

@@ -15,6 +15,7 @@ ExecStart=/usr/bin/docker run --name %n \
   -v /etc/ceph:/etc/ceph \
   -p 8777:8776 \
   -p 3260:3260 \
+  --network=host \
   {{ docker_image }}
 
 [Install]