Hello. I'm trying to upgrade to ceph 15.2.4 from 15.2.3. The upgrade is almost finished, but it has entered in a service start/stop loop. I'm using a container deployment over Debian 10 with 4 nodes. The problem is with a service named literally "mds.label:mds". It has the colon character, which is of special use in docker. This character can't appear in the name of the container and also breaks the volumen binding syntax. I have seen in the /var/lib/ceph/UUID/ the files for this service: root@ceph-admin:/var/lib/ceph/0ce93550-b628-11ea-9484-f6dc192416ca# ls -la total 48 drwx------ 12 167 167 4096 jul 10 02:54 . drwxr-x--- 3 ceph ceph 4096 jun 24 16:36 .. drwx------ 3 nobody nogroup 4096 jun 24 16:37 alertmanager.ceph-admin drwx------ 3 167 167 4096 jun 24 16:36 crash drwx------ 2 167 167 4096 jul 10 01:35 crash.ceph-admin drwx------ 4 998 996 4096 jun 24 16:38 grafana.ceph-admin drwx------ 2 167 167 4096 jul 10 02:55 mds.label:mds.ceph-admin.rwmtkr drwx------ 2 167 167 4096 jul 10 01:33 mgr.ceph-admin.doljkl drwx------ 3 167 167 4096 jul 10 01:34 mon.ceph-admin drwx------ 2 nobody nogroup 4096 jun 24 16:38 node-exporter.ceph-admin drwx------ 4 nobody nogroup 4096 jun 24 16:38 prometheus.ceph-admin drwx------ 4 root root 4096 jul 3 02:43 removed root@ceph-admin:/var/lib/ceph/0ce93550-b628-11ea-9484-f6dc192416ca/mds.label:mds.ceph-admin.rwmtkr# ls -la total 32 drwx------ 2 167 167 4096 jul 10 02:55 . drwx------ 12 167 167 4096 jul 10 02:54 .. -rw------- 1 167 167 295 jul 10 02:55 config -rw------- 1 167 167 152 jul 10 02:55 keyring -rw------- 1 167 167 38 jul 10 02:55 unit.configured -rw------- 1 167 167 48 jul 10 02:54 unit.created -rw------- 1 root root 24 jul 10 02:55 unit.image -rw------- 1 root root 0 jul 10 02:55 unit.poststop -rw------- 1 root root 981 jul 10 02:55 unit.run root@ceph-admin:/var/lib/ceph/0ce93550-b628-11ea-9484-f6dc192416ca/mds.label:mds.ceph-admin.rwmtkr# cat unit.run /usr/bin/install -d -m0770 -o 167 -g 167 /var/run/ceph/0ce93550-b628-11ea-9484-f6dc192416ca /usr/bin/docker run --rm --net=host --ipc=host --name ceph-0ce93550-b628-11ea-9484-f6dc192416ca-mds.label:mds.ceph-admin.rwmtkr -e CONTAINER_IMAGE=docker.io/ceph/ceph:v15 -e NODE_NAME=ceph-admin -v /var/ru n/ceph/0ce93550-b628-11ea-9484-f6dc192416ca:/var/run/ceph:z -v /var/log/ceph/0ce93550-b628-11ea-9484-f6dc192416ca:/var/log/ceph:z -v /var/lib/ceph/0ce93550-b628-11ea-9484-f6dc192416ca/crash:/var/lib/ceph/c rash:z -v /var/lib/ceph/0ce93550-b628-11ea-9484-f6dc192416ca/mds.label:mds.ceph-admin.rwmtkr:/var/lib/ceph/mds/ceph-label:mds.ceph-admin.rwmtkr:z -v /var/lib/ceph/0ce93550-b628-11ea-9484-f6dc192416ca/mds.l abel:mds.ceph-admin.rwmtkr/config:/etc/ceph/ceph.conf:z --entrypoint /usr/bin/ceph-mds docker.io/ceph/ceph:v15 -n mds.label:mds.ceph-admin.rwmtkr -f --setuser ceph --setgroup ceph --default-log-to-file=fal se --default-log-to-stderr=true --default-log-stderr-prefix="debug " If I try to manually run the docker command, this is the error: docker: Error response from daemon: Invalid container name (ceph-0ce93550-b628-11ea-9484-f6dc192416ca-mds.label:mds.ceph-admin.rwmtkr), only [a-zA-Z0-9][a-zA-Z0-9_.-] are allowed. If I try with a different container name, then the volume binding error rises: docker: Error response from daemon: invalid volume specification: '/var/lib/ceph/0ce93550-b628-11ea-9484-f6dc192416ca/mds.label:mds.ceph-admin.rwmtkr:/var/lib/ceph/mds/ceph-label:mds.ceph-admin.rwmtkr:z'. This mds is not needed and I would be happy simply removing it, but I don't know how to do it. The documentation says how to do it for "normal" services, but my installation is a container deployment. I have tried to remove the directory and restart the upgrading process but then the directory with this service appears again. Please, how can I remove or rename this service so I can complete the upgrading? Also, I think it's a bug to allow docker-forbidden characters in the service names when using container deployment and it should be checked. Thank you very much. -- *Mario J. 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