This is a weird issue that I can’t quite explain, so forgive me for the long description.
I have a set of containers with Jellyfin, qBittorrent, and some *arr applications running.
In the host machine, there’s a specific user for each service (e.g. sonarr, jellyfin, qbittorrent, etc) and a group to which all those users belong (mediaservices).
The host has the following directories:
/somewhere
├── private
│ ├── jellyfin
│ ├── radarr
│ └── qbittorrent
├──shared
└── data
├── torrents
└── media
The private directory is where I store configuration files and such for each individual service. Each directory is owned by the respective service user.
The shared directory is where I store files that should be accessed by all applications (media files, basically). Ignore the redundant data directory, it was added by mistake and I just haven’t removed it yet. This, and all its sub-directories belong to the mediaservices group and are set with read-write permissions for the group.
The qBittorrent service is defined in docker-compose.yml as follows (the QBITTORRENT_UID and MEDIASERVICES_GID variables are passed in when running docker compose up:
qbittorrent:
container_name: qbittorrent
image: linuxserver/qbittorrent
restart: unless-stopped
environment:
- PUID="${QBITTORRENT_UID}"
- PGID="${MEDIASERVICES_GID}"
- UMASK=002
- UMASK_SET=002
- TZ=Europe/Lisbon
- WEBUI_PORT=8080
volumes:
- ./private/qbittorrent/config:/config
- ./shared/data:/data
ports:
- 8080:8080
- 6881:6881
- 6881:6881/udp
There are two things happening:
- The logs for qbittorrent complain about
"groupmod: invalid group ID ‘“138”’
usermod: invalid user ID ‘“134”’
Those IDs are the correct group and user IDs for the desired group and user on the host machine.
- I change a few settings on the qbittorrent web interface but every time I restart the container, the changes are gone.
#2 is most likely a consequence of #1. More precisely, the UID and GID not being set properly in the container and thus qbittorrent not having access to its own configuration files. But I have no idea why and this is driving me crazy. The permissions and ownership are set correctly on the host, I checked that multiple times, but it just doesn’t work.
Any help would be greatly appreciated.
