add docker registry to gitlab node

gitlab/docker-compose.yml

@@ -2,9 +2,22 @@ version: "3.9"
 
 services:
 
+  docker-registry:
+    image: registry:2.8.1
+    container_name: docker-registry
+    restart: always
+    environment:
+      REGISTRY_HTTP_ADDR: 0.0.0.0:80
+    ports:
+      - 80
+    volumes:
+      - ./volumes/docker-registry:/var/lib/registry
+
   gitlab:
     image: 'gitlab/gitlab-ee:15.9.2-ee.0'
     container_name: gitlab
+    links:
+      - docker-registry
     restart: always
     hostname: 'localhost'
     environment:
@@ -20,6 +33,10 @@ services:
         external_url '${GITLAB_IP_OR_DNS}'
         # gitlab_rails['gitlab_https'] = true
         # gitlab_rails['gitlab_port'] = 443
+
+        # container registry setup
+
+        registry_external_url 'http://docker-registry/'
     ports:
       - 0.0.0.0:80:80
       - 0.0.0.0:443:443