looks like we need to specify a docker network

media/docker-compose.yml

@@ -29,6 +29,7 @@ services:
       - lidarr_config:/config:rw
       - media_share:/data
     labels:
+      - traefik.docker.network=media_default
       - traefik.http.routers.lidarr.rule=Host(`app.playne.au`) && PathPrefix(`/lidarr`)
       - traefik.http.routers.lidarr.tls=true
       - traefik.http.routers.lidarr.tls.certresolver=le