fix:registry in docker compose

docker-compose.yml

@@ -8,7 +8,7 @@ services:
       replicas: 1
       restart_policy:
         condition: any
-    image: ${REGISTRY_DOMAIN}:${REGISTRY_PORT}/ghost
+    image: ${LOCAL_DOCKER_REGISTRY}/ghost
     volumes:
       - ghost-content-images:/var/lib/ghost/content/images
       - ghost-content-settings:/var/lib/ghost/content/settings
@@ -31,7 +31,7 @@ services:
       - appnet
       - externalnet
   ghost-mysql:
-    image: mysql:5.7
+    image: ${LOCAL_DOCKER_REGISTRY}mysql:5.7
     deploy:
       placement:
         constraints: [node.labels.com.sigyl.git-stack-data == yes]