verify docker push and login

.gitlab-ci.yml

@@ -10,6 +10,16 @@ variables:
   DOCKER_REGISTRY: "docker.io"
   DOCKERHUB_REPO: "$DOCKER_USERNAME/reddit_data_fetcher"
 
+# =====================================================================
+#                     BASE JOB TEMPLATE
+# =====================================================================
+.build_template:
+  tags: ["ubuntu", "vm"]       # Must match your runner tags
+  image: docker:24.0.9         # Docker CLI available
+  before_script:
+    - echo "Using host Docker daemon"
+    - docker info || true      # check Docker access
+
 # =====================================================================
 #                             LINT
 # =====================================================================
@@ -19,11 +29,11 @@ lint:
   tags: ["ubuntu", "vm"]
   before_script:
     - pip install flake8
-  script:
-    - echo "Linting Python code..."
-    - flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
-    - flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
-    - echo "Done running the Python Lint stage"
+  script: |
+    echo "Linting Python code..."
+    flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
+    flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
+    echo "Done running the Python Lint stage"
   rules:
     - if: '$CI_PIPELINE_SOURCE == "merge_request_event"'
     - if: '$CI_COMMIT_BRANCH'
@@ -40,8 +50,8 @@ test:
   before_script:
     - pip install pytest
     - echo "Running Tests"
-  script:
-    - pytest -q || echo "No tests found"
+  script: |
+    pytest -q || echo "No tests found"
   after_script:
     - echo "Tests completed successfully"
   rules:
@@ -55,19 +65,13 @@ test:
 # =====================================================================
 diag:
   stage: diag
-  image: docker:24.0.9
-  tags: ["ubuntu", "vm"]
-  before_script:
-    - echo "Checking Docker access..."
-    - docker info || true
-  script:
-    - echo "Check Docker socket:"
-    - ls -l /var/run || true
-    - stat /var/run/docker.sock || true
-    - echo "Docker version:"
-    - docker version || true
-    - echo "Docker info:"
-    - docker info || true
+  extends: .build_template
+  script: |
+    echo "Check Docker access:"
+    ls -l /var/run
+    stat /var/run/docker.sock || true
+    docker version || true
+    docker info || true
   rules:
     - if: '$CI_PIPELINE_SOURCE == "merge_request_event"'
     - if: '$CI_COMMIT_BRANCH'
@@ -79,17 +83,18 @@ diag:
 # =====================================================================
 build:
   stage: build
-  image: docker:24.0.9
-  tags: ["ubuntu", "vm"]
-  before_script:
-    - echo "Checking Docker access..."
-    - docker info || true
-  script:
-    - echo "Building Docker image for commit: ${CI_COMMIT_SHORT_SHA}"
-    - docker build --build-arg REDDIT_CLIENT_ID="$REDDIT_CLIENT_ID" --build-arg REDDIT_CLIENT_SECRET="$REDDIT_CLIENT_SECRET" -t $DOCKERHUB_REPO:$CI_COMMIT_SHORT_SHA .
+  extends: .build_template
+  script: |
+    echo "Logging in to Docker registry..."
+    echo "$DOCKER_TOKEN" | docker login -u "$DOCKER_USERNAME" --password-stdin
+
+    echo "Building Docker image for commit: ${CI_COMMIT_SHORT_SHA}"
+    docker build \
+      --build-arg REDDIT_CLIENT_ID="$REDDIT_CLIENT_ID" \
+      --build-arg REDDIT_CLIENT_SECRET="$REDDIT_CLIENT_SECRET" \
+      -t $DOCKERHUB_REPO:$CI_COMMIT_SHORT_SHA .
+  after_script:
     - echo "Docker image built successfully!"
-    - echo "Listing local images:"
-    - docker images
   rules:
     - if: '$CI_PIPELINE_SOURCE == "merge_request_event"'
       when: never
@@ -102,27 +107,28 @@ build:
 # =====================================================================
 deploy:
   stage: deploy
-  image: docker:24.0.9
-  tags: ["ubuntu", "vm"]
-  before_script:
-    - echo "Checking Docker access..."
-    - docker info || true
-  script:
-    - echo "Logging in to Docker Hub..."
-    - echo "$DOCKER_TOKEN" | docker login -u "$DOCKER_USERNAME" --password-stdin
-    - docker info | grep Username || (echo "Docker login failed!" && exit 1)
-    - echo "Listing local images before push:"
-    - docker images
-    - echo "Pushing image: $DOCKERHUB_REPO:$CI_COMMIT_SHORT_SHA"
-    - docker push $DOCKERHUB_REPO:$CI_COMMIT_SHORT_SHA || (echo "Push failed!" && exit 1)
-    - if [ "$CI_COMMIT_BRANCH" = "$CI_DEFAULT_BRANCH" ]; then
-        echo "Tagging image as latest...";
-        docker tag $DOCKERHUB_REPO:$CI_COMMIT_SHORT_SHA $DOCKERHUB_REPO:latest;
-        echo "Pushing latest tag...";
-        docker push $DOCKERHUB_REPO:latest || (echo "Push latest failed!" && exit 1);
-      fi
-    - echo "Listing local images after push:"
-    - docker images
+  extends: .build_template
+  script: |
+    echo "Logging in to Docker registry..."
+    echo "$DOCKER_TOKEN" | docker login -u "$DOCKER_USERNAME" --password-stdin
+
+    # Verify login
+    docker info | grep Username || (echo "Docker login failed!" && exit 1)
+
+    echo "Listing local Docker images before push..."
+    docker images
+
+    echo "Pushing Docker image: $DOCKERHUB_REPO:$CI_COMMIT_SHORT_SHA"
+    docker push $DOCKERHUB_REPO:$CI_COMMIT_SHORT_SHA
+
+    if [ "$CI_COMMIT_BRANCH" = "$CI_DEFAULT_BRANCH" ]; then
+      echo "Tagging image as latest..."
+      docker tag $DOCKERHUB_REPO:$CI_COMMIT_SHORT_SHA $DOCKERHUB_REPO:latest
+      echo "Pushing latest tag..."
+      docker push $DOCKERHUB_REPO:latest
+    fi
+
+    echo "Listing local Docker images after push..."
+    docker images
   rules:
-    - if: '$CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH'
-    - when: never
+    - if: '$CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH'
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