I wrote my own, using plain HTML/CSS. Actually the final .html file gets templated by ansible depending on what’s installed on the server, but you can easily pick just the parts you need from the j2 template

1. You can verry well share bind mounts between containers
2. named volumes are actually directories too, you know? Under /var/lib/docker/volumes/ by default

Still, use bind mounts. Named or anonymous volumes are only good for temporary junk.

• step 1: use named volumes
• step 2: stop your containers or just wait for them to crash/stop unnoticed for some reason
• step 3: run docker system prune --all as one should do periodically to clean up the garbage docker leaves on your system. Lose all your data (this will delete even named volumes if they are not in use by a running container)
• step 4: never use named or anonymous volumes again, use bind mounts

The fact that you absolutely need to run docker system prune --all regularly to get rid of GBs of unused layers, test containers, etc, combined with the fact that it deletes explicitely named volumes makes them too unsafe for my taste. Just use bind mounts.

I wrote this ansible role to setup dovecot IMAP server. Once a year I move all mail from the previous year from various mailboxes to my dovecot server (using thunderbird).