Fijando versiones a los contenedores

stacks/miniflux/compose.yml

@@ -1,6 +1,6 @@
 services:
   miniflux:
-    image: miniflux/miniflux:latest
+    image: miniflux/miniflux:2.2.17
     depends_on:
       db:
         condition: service_healthy
@@ -20,6 +20,6 @@ services:
     volumes:
       - ${DATA_DIR}:/var/lib/postgresql
     healthcheck:
-      test: ["CMD", "pg_isready", "-U", "miniflux"]
+      test: ["CMD", "pg_isready", "-U", "${POSTGRES_USER}"]
       interval: 10s
       start_period: 30s