Nextcloud fpm docker cron ownership issue

[tamashika]

I have used fstab to mount my ntfs drive with ownership www-data, and my nextcloud container has volume in the same ntfs drive.

However, after I setup my cron container for nextcloud, I found it keeps producing this error:

Console has to be executed with the user that owns the file config/config.php
Current user id: 82
Owner id of config.php: 33

The weirdest thing is that if I execute the following command, I would get the same error:

docker exec -u www-data nextcloud php /var/www/html/cron.php

If I replace www-data with 33 as the following, I will not get the same error:

docker exec -u 33 nextcloud php /var/www/html/cron.php

I have checked that www-data is uid=33, gid=33, groups=33, but why it’s not the same?

BTW, I checked id 82, but there is no user with id 82…

[jtr]

Is your cron container running the same image as your nextcloud container? It sounds like maybe one is the -alpine image and other not maybe? (You want them to be the same image).

The alpine images use 82/www-data. The debian images use 33/www-data.

[tamashika]

Oh no…I do have both container using fpm-apline image, but I didn’t know fpm-alpine is for alpine linux. Does that mean raspbian cannot use it?
Or is it because I had nextcloud docker setup before and the user id for www-data was 33, now if i switched to fpm-alpine it won’t work out very well? (I’m using fstab to automount my ntfs with owner www-data, which is currently 33)

(Right now I have everything in fpm-apline, which makes me wonder how the world it works in my raspbian…)

[jtr]

Alpine is what runs in the Docker container. Your underlying host’s OS isn’t relevant (for the most part). e.g. docs/php/README.md at master · docker-library/docs · GitHub

Or is it because I had nextcloud docker setup before and the user id for www-data was 33, now if i switched to fpm-alpine it won’t work out very well? (I’m using fstab to automount my ntfs with owner www-data, which is currently 33)

Yes, the UID changes: https://github.com/nextcloud/docker/issues/601

[tamashika]

Do you know if there a way I can make www-data in the fpm-apline version of nextcloud container to use id 33 instead of 82?

I saw there was a git issue but it seems to be shut down quickly by the “user” option in docker compose file. After trying that “user: 33:33” in my docker compose file for all nextcloud related containers, I found this option didn’t work out well for me. I started seeing some permission error in my nextcloud docker, not too sure what’s going on there.

Another method I tried was using the command: docker exec nextcloud chown -R www-data:root /var/www (nextcloud is my nextcloud container name), but that didn’t work out either.

Right now I guess I’ll have to change my www-data on host to 82 instead of 33, and then automount my ntfs drive to 82

Wonder if there is a better way.

Thanks…