Add external monitoring network

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

@@ -35,6 +35,7 @@ services:
       - backend
       - pantalaimon
       - default
+      - metrics
 
   db:
     image: postgres:13
@@ -42,8 +43,6 @@ services:
     environment:
       - POSTGRES_USER={{ miniflux.db.user }}
       - POSTGRES_PASSWORD={{ miniflux.db.password }}
-    labels:
-      - "com.centurylinklabs.watchtower.scope=update"
     volumes:
       - database:/var/lib/postgresql/data
     healthcheck:
@@ -61,4 +60,6 @@ networks:
     internal: true
   pantalaimon:
     external: true
+  metrics:
+    external: true
 ...