Plex in Docker
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Plex is a client-server media player system and software suite comprising two main components (a media server and client applications)
- Docker swarm cluster with persistent shared storage
- Traefik configured per design
- DNS entry for the hostname you intend to use (or a wildcard), pointed to your keepalived IP
Setup data locations
We'll need a directories to bind-mount into our container for Plex to store its library, so create /var/data/plex:
Prepare Plex environment
Create plex.env, and populate with the following variables. Set PUID and GUID to the UID and GID of the user who owns your media files, on the local filesystem
EDGE=1 VERSION=latest PUID=42 PGID=42
Plex Docker Swarm config
Create a docker swarm config file in docker-compose syntax (v3), something like the example below:
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version: "3.0" services: plex: image: lscr.io/linuxserver/plex env_file: plex.env volumes: - /var/data/config/plex:/config - /var/data/media:/media deploy: labels: # traefik common - traefik.enable=true - traefik.docker.network=traefik_public # traefikv1 - traefik.frontend.rule=Host:plex.example.com - traefik.port=32400 # traefikv2 - "traefik.http.routers.plex.rule=Host(`plex.example.com`)" - "traefik.http.services.plex.loadbalancer.server.port=32400" - "traefik.enable=true" networks: - traefik_public - internal ports: - 32469:32469 - 32400:32400 - 32401:32401 - 3005:3005 - 8324:8324 - 1900:1900/udp - 32410:32410/udp - 32412:32412/udp - 32413:32413/udp - 32414:32414/udp networks: traefik_public: external: true internal: driver: overlay ipam: config: - subnet: 172.16.16.0/24
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.
Launch Plex stack
Launch the Plex stack by running
docker stack deploy plex -c <path -to-docker-compose.yml>
Log into your new instance at https://YOUR-FQDN (You'll need to setup a plex.tv login for remote access / discovery to work from certain clients)
Chef's notes 📓
Plex uses port 32400 for remote access, using your plex.tv user/password to authenticate you. The inclusion of the traefik proxy in this recipe is simply to allow you to use the web client (as opposed to a client app) by connecting directly to your instance, as opposed to browsing your media via https://plex.tv/web ↩
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