Update deploy-on-v2-commit.yml

.github/workflows/deploy-on-v2-commit.yml

@@ -12,6 +12,9 @@ permissions:
 jobs:
   deploy-v2-on-push:
     runs-on: ubuntu-latest
+    concurrency:
+      group: deploy-v2-push-V2
+      cancel-in-progress: true
 
     steps:
       - name: Harden Runner
@@ -33,6 +36,28 @@ jobs:
           echo "frontend_short=${FRONTEND_HASH:0:8}" >> $GITHUB_OUTPUT
           echo "backend_short=${BACKEND_HASH:0:8}" >> $GITHUB_OUTPUT
 
+      - name: Check if frontend image exists
+        id: check-frontend
+        run: |
+          if docker manifest inspect ${{ secrets.DOCKER_HUB_USERNAME }}/test:v2-frontend-${{ steps.commit-hashes.outputs.frontend_short }} >/dev/null 2>&1; then
+            echo "exists=true" >> $GITHUB_OUTPUT
+            echo "Frontend image already exists, skipping build"
+          else
+            echo "exists=false" >> $GITHUB_OUTPUT
+            echo "Frontend image needs to be built"
+          fi
+      
+      - name: Check if backend image exists
+        id: check-backend
+        run: |
+          if docker manifest inspect ${{ secrets.DOCKER_HUB_USERNAME }}/test:v2-backend-${{ steps.commit-hashes.outputs.backend_short }} >/dev/null 2>&1; then
+            echo "exists=true" >> $GITHUB_OUTPUT
+            echo "Backend image already exists, skipping build"
+          else
+            echo "exists=false" >> $GITHUB_OUTPUT
+            echo "Backend image needs to be built"
+          fi
+
       - name: Login to Docker Hub
         uses: docker/login-action@v3
         with:
@@ -40,6 +65,7 @@ jobs:
           password: ${{ secrets.DOCKER_HUB_API }}
 
       - name: Build and push frontend image
+        if: steps.check-frontend.outputs.exists == 'false'
         uses: docker/build-push-action@v6
         with:
           context: .
@@ -48,8 +74,9 @@ jobs:
           tags: ${{ secrets.DOCKER_HUB_USERNAME }}/test:v2-frontend-${{ steps.commit-hashes.outputs.frontend_short }}
           build-args: VERSION_TAG=v2-alpha
           platforms: linux/amd64
-
+      
       - name: Build and push backend image
+        if: steps.check-backend.outputs.exists == 'false'
         uses: docker/build-push-action@v6
         with:
           context: .
@@ -59,6 +86,7 @@ jobs:
           build-args: VERSION_TAG=v2-alpha
           platforms: linux/amd64
 
+
       - name: Set up SSH
         run: |
           mkdir -p ~/.ssh/