Jellyfin

Jellyfin is best described as "like Emby but really FOSS".

If it looks very similar as Emby, is because it started as a fork of it, but it has evolve since them. For a complete explanation of the why, look here.

Ingredients

Docker swarm cluster with persistent shared storage
Traefik configured per design
DNS entry for the hostname you intend to use, pointed to your keepalived IP

Preparation

Setup data locations

We'll need a location to store Jellyfin's library data, config files, logs and temporary transcoding space, so create /var/data/jellyfin, and make sure it's owned by the user and group who also own your media data.

mkdir /var/data/jellyfin

Also if we want to avoid the cache to be part of the backup, we should create a location to map it on the runtime folder. It also has to be owned by the user and group who also own your media data.

mkdir /var/data/runtime/jellyfin

Prepare environment

Create jellyfin.env, and populate with PUID/GUID for the user who owns the /var/data/jellyfin directory (above) and your actual media content (in this example, the media content is at /srv/data)

PUID=
GUID=

Setup Docker Swarm

Create a docker swarm config file in docker-compose syntax (v3), something like this:

!!! tip I share (with my sponsors) a private "premix" git repository, which includes necessary docker-compose and env files for all published recipes. This means that sponsors can launch any recipe with just a git pull and a docker stack deploy 👍

version: "3.0"

services:
  jellyfin:
    image: jellyfin/jellyfin
    env_file: /var/data/config/jellyfin/jellyfin.env
    volumes:
      - /etc/localtime:/etc/localtime:ro
      - /var/data/jellyfin:/config
      - /var/data/runtime/jellyfin:/cache
      - /var/data/jellyfin/jellyfin:/config
      - /srv/data/:/data
    deploy:
      labels:
        - traefik.frontend.rule=Host:jellyfin.example.com
        - traefik.docker.network=traefik_public
        - traefik.port=8096
    networks:
        - traefik_public
        - internal
    ports:
      - 8096:8096

networks:
  traefik_public:
    external: true
  internal:
    driver: overlay
    ipam:
      config:
        - subnet: 172.16.57.0/24

!!! note Setup unique static subnets for every stack you deploy. This avoids IP/gateway conflicts which can otherwise occur when you're creating/removing stacks a lot. See my list here.

Serving

Launch Jellyfin stack

Launch the stack by running docker stack deploy jellyfin -c <path -to-docker-compose.yml>

Log into your new instance at https://YOUR-FQDN, and complete the wizard-based setup to complete deploying your Jellyfin.

Chef's Notes 📓

I didn't use an oauth2_proxy for this stack, because it would interfere with mobile client support.
Got an NVIDIA GPU? See this blog post re how to use your GPU to transcode your media!
We don't bother exposing the HTTPS port for Jellyfin, since Traefik is doing the SSL termination for us already.

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