3rd can use shell?

.gitlab-ci.yml

@@ -16,12 +16,6 @@ check_app_update:
   image: debian:latest
   tags:
     - docker
-  variables:
-    DOCKER_HOST: "tcp://docker:2375"
-    DOCKER_TLS_CERTDIR: ""
-  services:
-    - name: docker:dind
-      command: ["--tls=false"]
   script:
     - apt-get update
     - apt-get install -y git
@@ -68,16 +62,8 @@ build_frontend:
 # Build & Push Docker frontend
 build_docker_frontend:
   stage: package
-  image: docker:latest
-  services:
-    - name: docker:dind
-      command: ["--tls=false"]
-  variables:
-    DOCKER_HOST: tcp://docker:2375
-    DOCKER_DRIVER: overlay2
-    DOCKER_TLS_CERTDIR: ""
   tags:
-    - docker
+    - shell
   dependencies:
     - check_app_update
     - build_frontend
@@ -91,7 +77,6 @@ build_docker_frontend:
     - docker build -t "$IMAGE_FRONTEND" doodlestudent/front
     - docker push "$IMAGE_FRONTEND"
     - docker logout
-
 # Deploy to Production
 deploy_production:
   stage: deploy