Traefik: Move to host mode

coreos-config/plays/services/gitea/docker-compose.yaml

@@ -18,8 +18,8 @@ services:
       - "GITEA__service__DISABLE_REGISTRATION=true"
     restart: always
     networks:
+      - default # mirror service needs internet
       - backend
-      - gateway
     volumes:
       - gitea_data:/data
       - /etc/timezone:/etc/timezone:ro
@@ -68,7 +68,6 @@ services:
       - "DRONE_USER_CREATE=username:tobias,admin:true"
     networks:
       - backend
-      - gateway
     volumes:
       - drone_data:/data
     labels:
@@ -82,8 +81,6 @@ services:
 networks:
   backend:
     internal: true
-  gateway:
-    external: true
 
 volumes:
   gitea_data: