mergerfs ignoring defined PUID & PGID about docker-rclone

[wiserain]

I got remembered!

It's designed for the case that user-provided /local folder is not empty and sometime even contains huge amount of files so that might cause inefficiency in every container initialization step.

It is not based on a concrete fact though. How do you thinks?

[nosliwkered]

I think I'm tracking what you're concerned about, but I don't believe you should be worried. Docker volumes are persistent storage, so anything written by the container to /local will remain in /local/dir/to/be/merged/with when the container stops or is removed. If /local/dir/to/be/merged/with already exists when the container is started, then docker doesn't have to take any actions against the folder itself and successfully maps it and its existing data to the container's /local.

This issue I'm seeing is specific to the folder permissions associated with /local/dir/to/be/merged/with when it doesn't already exist. For testing purposes, I'm using /home/user/test-local. If /home/user/test-local doesn't already exist, the container creates it, but always using the default PUID:-911 & PGID:-911 and not the user-defined values in docker-compose.yml. This results in /home/user/test-local being created and successfully mapped to the container's /local, but user or any services running as user cannot write to it or to /home/user/test-merged, because it's ultimately still trying to write to /home/user/test-local.

Example:

user@hostname:~$ ls -l |grep test
drwxr-xr-x  2 root     root     4096 May  7 04:12 test-local
drwxr-xr-x  1 user     user        0 May  7 04:14 test-merged
drwxrwxr-x  1 user     user        0 May  7 04:14 test-rclone
user@hostname:~$ touch test-local/testfile
touch: cannot touch 'test-local/testeroo': Permission denied
user@hostname:~$ touch test-merged/testfile
touch: cannot touch 'test-merged/testeroo': Permission denied
user@hostname:~$ touch test-rclone/testfile
user@hostname:~$

[wiserain]

A test image is pushed. Would you mind testing it? You can try with wiserain/rclone:testing or ghcr.io/wiserain/rclone:testing. Thanks.

[nosliwkered]

Just tested it with both an existing local folder and non-existant one and it works well in either case! Great work!