Add initial jellyfin configuration

roles/jellyfin/templates/.env.jellyfin.j2

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+JELLYFIN_PublishedServerUrl="https://jellyfin.{{ domain }}"

roles/jellyfin/templates/docker-compose.yml.j2

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+version: "3.9"
+
+networks:
+  default:
+  traefik_traefik:
+    external: true
+
+volumes:
+  config:
+  cache:
+  media:
+    driver: local
+    driver_opts:
+      type: nfs
+      o: "addr=truenas.lab.home,nfsvers=4,ro,noatime"
+      device: ":/mnt/Mass-Storage-New/JailStorage/Plex"
+
+services:
+  jellyfin:
+    image: jellyfin/jellyfin:10.8.5
+    container_name: jellyfin_jellyfin
+    labels:
+      - traefik.enable=true
+      - traefik.http.routers.jellyfin.rule=Host(`jellyfin.{{ domain }}`)
+      - traefik.http.services.jellyfin.loadbalancer.server.port=8096
+    restart: unless-stopped
+    env_file:
+      - .env.jellyfin
+    networks:
+      - default
+      - traefik_traefik
+    volumes:
+      - config:/config
+      - cache:/cache
+      - media:/data/media