I'm new to Linux and all my configurations are stored within the WSL2 filesystem. When I try to use the official Docker image for Jellyfin, I'm facing issues with permissions where the application can't write to the mounted config and cache volumes. I find myself constantly having to run 'sudo chown' on various subdirectories, which leads to various problems, like metadata not loading and media items disappearing from the homepage, likely due to cache issues. I've also encountered similar permission troubles with Tailscale and Recyclarr. Even simple commands like 'rsync' are a hassle because many files get skipped due to permission errors. I'm concerned this might complicate future automated backups of these volumes. Currently, I applied 'chmod 777' to some directories, which fixed a few issues, especially with 'others' permissions, but I know that's not a proper solution. I'm looking for advice on how to handle these permissions correctly in a WSL2 and Docker setup.
2 Answers
To help out, I need a bit more information. Were you using the native Docker installation, or was it set up in a rootless mode? It's also crucial to know the UID your application runs under inside the Docker container and whether you mapped volumes to a Linux directory or directly to a Windows directory.
This will help figure out why you're facing permissions issues. In some cases, adjusting the user in your Docker Compose file (like using 'user: 1000:1000') can help, though it can backfire depending on the setup. Let’s dig deeper from there!
It sounds like you're dealing with the intricacies of running Docker on WSL2. By default, Docker containers run as the root user, which can create compatibility issues with your applications trying to write to the file system. Many applications within Docker aren't set up to run as root due to security risks, so they can't access files created by Docker unless permissions are set right. This might not be the exact situation you're experiencing but definitely worth considering.
You might want to check how your application is configured to run inside Docker, as different user IDs can definitely cause access problems.
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