Add mediaserver, rm .gitignore, FQCN, Jellyfin

- Added development "mediaserver" playbook for testing
- rm .gitignore in roles dir since no external ansible roles are used
- Update a part of the base role to use FQCN for linting
- Added "jellyfin" role to install Jellyfin with docker-compose
- Updated Traefik to use the loopback for default web entry points
- Simplified Traefik docker-compose vars, Ansible sets defaults

roles/jellyfin/templates/compose-env.j2

@@ -0,0 +1,5 @@
+# {{ ansible_managed }}
+jellyfin_version={{ jellyfin_version }}
+jellyfin_name={{ jellyfin_name }}
+jellyfin_domain={{ jellyfin_domain }}
+jellyfin_rooturl={{ jellyfin_rooturl }}

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

@@ -0,0 +1,29 @@
+version: '3.7'
+
+volumes:
+  {{ jellyfin_volume }}:
+
+networks:
+  traefik:
+    external: true
+
+services:
+  jellyfin:
+    image: "jellyfin/jellyfin:${jellyfin_version}"
+    container_name: "${jellyfin_name}"
+    networks:
+      - traefik
+    labels:
+      - "traefik.http.routers.{{ jellyfin_router }}.rule=Host(`{{ jellyfin_domain }}`)"
+{% if traefik_http_only %}
+      - "traefik.http.routers.{{ jellyfin_router }}.entrypoints=web"
+{% else %}
+      - "traefik.http.routers.{{ jellyfin_router }}.entrypoints=websecure"
+{% endif %}
+      - "traefik.http.services.{{ jellyfin_router }}.loadbalancer.server.port=8096"
+      - "traefik.docker.network=traefik"
+      - "traefik.enable=true"
+    volumes:
+      - ./config:/config
+      - ./cache:/cache
+      - {{ jellyfin_volume }}:/media