filters and matrix in workflow

Author: pokerface03

.github/workflows/deploy.yml

@@ -34,11 +34,6 @@ jobs:
     name: Build and Push ${{ matrix.service }} to ECR
     runs-on: ubuntu-latest
 
-    if: |
-      (${{ matrix.service }} == 'backend' && needs.detect-changes.outputs.backend == 'true') ||
-      (${{ matrix.service }} == 'frontend' && needs.detect-changes.outputs.frontend == 'true') ||
-      (${{ matrix.service }} == 'gateway' && needs.detect-changes.outputs.gateway == 'true')
-
     strategy:
       fail-fast: false 
       matrix:
@@ -48,31 +43,46 @@ jobs:
             context: ./backend
             dockerfile: ./backend/Dockerfile
             image: movie-api
+            changed: ${{ needs.detect-changes.outputs.backend }}
           - service: frontend
             context: ./frontend
             dockerfile: ./frontend/Dockerfile
             image: frontend
+            changed: ${{ needs.detect-changes.outputs.frontend }}
           - service: gateway
             context: ./gateway
             dockerfile: ./gateway/Dockerfile
             image: gateway
+            changed: ${{ needs.detect-changes.outputs.gateway }}
+
 
     steps:
+
+      - name: Skip if no changes
+        if: matrix.changed != 'true'
+        run: |
+          echo "No changes detected for ${{ matrix.service }}, skipping build"
+          exit 0
+          
       - name: Checkout code
+        if: matrix.changed == 'true'
         uses: actions/checkout@v4
 
       - name: Configure AWS credentials
+        if: matrix.changed == 'true'
         uses: aws-actions/configure-aws-credentials@v4
         with:
           aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
           aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
           aws-region: eu-west-1   # change to your AWS region
 
       - name: Log in to Amazon ECR
+        if: matrix.changed == 'true'
         id: login-ecr
         uses: aws-actions/amazon-ecr-login@v2
 
       - name: Build, Tag, and Push Image to ECR
+        if: matrix.changed == 'true'
         env:
           ECR_REGISTRY: ${{ steps.login-ecr.outputs.registry }}
           REPO_NAME: movie_api