Refactor GitLab CI/CD pipelines

frontend/.gitlab-ci.yml

@@ -12,22 +12,7 @@ variables:
   NEXT_PUBLIC_ENV: "production"
   OUTPUT_DIR: ".next"
   PROJECT_NAME: $CI_PROJECT_NAME
-  DOCKER_IMAGE: "registry.boomlab.party/rheinsw/$CI_PROJECT_NAME"
-
-# Reusable block for docker build & push
-.dockerize_script: &dockerize_script
-  - |
-    RAW_TAG="$CI_COMMIT_REF_NAME"
-    TAG="${RAW_TAG//\//_}"  # replace "/" with "_"
-    echo "Sanitized tag: $TAG"
-    docker build -t $DOCKER_IMAGE:$TAG -f Dockerfile .
-
-    if [[ "$RAW_TAG" == "dev" || "$RAW_TAG" == "production" ]]; then
-      echo "Pushing Docker image $DOCKER_IMAGE:$TAG"
-      docker push $DOCKER_IMAGE:$TAG
-    else
-      echo "Skipping Docker push for non-dev or production branch: $RAW_TAG"
-    fi
+  DOCKER_IMAGE: $CI_REGISTRY_IMAGE
 
 frontend_build_job:
   stage: frontend_build
@@ -40,11 +25,11 @@ frontend_build_job:
 
 dockerize_frontend:
   stage: dockerize
-  image: docker:20.10@sha256:2967f0819c84dd589ed0a023b9d25dcfe7a3c123d5bf784ffbb77edf55335f0c
-  before_script:
-    - echo "$CI_REGISTRY_PASSWORD" | docker login "$CI_REGISTRY" -u "$CI_REGISTRY_USER" --password-stdin
-  script:
-    - cd frontend
-    - *dockerize_script
+  extends: .docker_build_template
+  variables:
+    DOCKER_CONTEXT: frontend
+    DOCKERFILE: Dockerfile
+    DOCKER_IMAGE: $DOCKER_IMAGE
+    DOCKER_BUILD_ARGS: ""
   needs:
     - job: frontend_build_job