Jellyfin and Docker Set-Up

[TheDreadPirate]

In Docker you are creating a self contained environment. The container is only aware of things external to it when you "map" that external folder/device/network to it.

If you did not configure a "host to container" mapping, the container is not aware of it. Additionally, since you did not configure a mapping from a folder on your host to "/config" in the container, if you were to update the container you would lose all your data. You need to go into the config for Jellyfin in portainer UI and map a folder on your host for both /config and /cache as well as map your media.

I use docker compose, but I think it kind of shows what I am talking about. The directory to the left of the colon is the path host, the path on the right is how it is mapped into the container.

Code:

volumes:
      - ./jellyfin-prod-data/config:/config
      - ./jellyfin-prod-data/cache:/cache
      - /media/storage2/tempLibrary:/media/tempLibrary:ro
      - /media/library:/media/library

The path you map on the right, the "container side", is arbitrary except for /config and /cache. You can map your media any which way you want.

Your library is in /mnt/movies and /mnt/tv? You can map that into the container as simply /movies and /tv.

Code:

/mnt/movies:/movies
/mnt/tv:/tv

The portainer UI will provide a similar distinction between host and container paths.