Image build is optimized.

.gitlab-ci.yml

@@ -27,16 +27,15 @@ variables:
 
 build:
   image: docker:latest
-  stage: build
   services:
-    - docker:dind
+    - name: docker:dind
+      command: ["--tls=false", "--storage-driver=overlay2", "--mtu=1500", "--data-root=/mnt/volume"]
   script:
     - echo "Building the Flask project"
     - docker build -t $DOCKER_REPO:flask .
 
 containerize:
   image: docker:latest
-  stage: containerize
   services:
     - docker:dind
   script:
@@ -45,8 +44,7 @@ containerize:
     - docker push $DOCKER_REPO:flask
 
 deploy:
-  image: docker:latest
-  stage: deploy
+  image: docker:dind
   services:
     - docker:dind
   script: