Remove legacy certs and sessions folder from Dockerfile in 24.04

[mmattel]

As we do cleanups, in 24.04

base/v24.04/Dockerfile.multiarch

Line 10 in cf68f08

RUN mkdir -p /home/owncloud /var/www/owncloud /mnt/data/files /mnt/data/config /mnt/data/certs /mnt/data/sessions && \

Does anything speak against removing certs and sessions from mkdir. It is not used and imho just a confusing legacy. These folders show up in the mount point of the Docker volume.

Note that I have checked uploading a root certificate via occ (webui is broken for this) and it stores these files in <mount-point/files/files_external/uploads/

@DeepDiver1975

[DeepDiver1975]

Investigated both folders before touching anything — they turn out to be quite different:

certs — confirmed dead legacy. The string appears in exactly one place in the whole repo: the mkdir -p in the Dockerfiles. There's no OWNCLOUD_VOLUME_CERTS env var, nothing in the startup scripts/templates/config.php references the path, and it is not recreated at runtime. Matches your finding that uploaded root certs land in files/files_external/uploads/ instead. Removed in #484 (for all three versions, v20.04/v22.04/v24.04, since it's identical dead weight in each).

sessions — this one I'd recommend keeping. Unlike certs, it's actively used: it's the default PHP file-based session store. The chain is:

• entrypoint.d/50-folders.sh → OWNCLOUD_VOLUME_SESSIONS=/mnt/data/sessions
• entrypoint.d/80-session.sh → OWNCLOUD_SESSION_SAVE_PATH defaults to it
• templates/owncloud.ini.tmpl → session.save_path = "/mnt/data/sessions" with session.save_handler = "files" (the default)
• owncloud.d/10-folders.sh → recreates the folder via mkdir -p on every server/occ start
• owncloud.d/25-chown.sh → fixes its permissions

Two consequences: (1) by default PHP writes session data there, so removing it is a functional change; and (2) even if removed from the Dockerfile, 10-folders.sh recreates it at runtime anyway — so it wouldn't actually disappear from the volume mount point.

So #484 removes only certs and leaves sessions intact. Shout if you'd still like sessions reworked (e.g. moved out of the data volume), but that's a behavioural change rather than a cleanup.