ci: add CD pipeline with Docker Hub push on pre-prod

.github/workflows/frontend-web-build.yml

@@ -2,13 +2,15 @@ name: Frontend Web - Build & Lint
 
 on:
     push:
-        branches: [main]
+        branches: [pre-prod]
         paths:
             - "frontend-prep/**"
+            - "docker/frontend/**"
     pull_request:
-        branches: [main]
+        branches: [pre-prod]
         paths:
             - "frontend-prep/**"
+            - "docker/frontend/**"
 
 jobs:
     lint-typecheck:
@@ -62,9 +64,31 @@ jobs:
                   VITE_TOMTOM_API_KEY: ${{ secrets.VITE_TOMTOM_API_KEY }}
               run: npm run build
 
-            - name: Upload dist artifact
-              uses: actions/upload-artifact@v4
+    docker:
+        name: Docker Build & Push
+        needs: build
+        runs-on: ubuntu-latest
+        if: github.event_name == 'push' && github.ref == 'refs/heads/pre-prod'
+
+        steps:
+            - uses: actions/checkout@v4
+
+            - name: Set up Docker Buildx
+              uses: docker/setup-buildx-action@v3
+
+            - name: Login to Docker Hub
+              uses: docker/login-action@v3
               with:
-                  name: frontend-web-dist
-                  path: frontend-prep/dist
-                  retention-days: 7
+                  username: ${{ secrets.DOCKERHUB_USERNAME }}
+                  password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+            - name: Build & push frontend
+              uses: docker/build-push-action@v6
+              with:
+                  context: .
+                  file: docker/frontend/Dockerfile
+                  push: true
+                  tags: |
+                      xor1234/frontend-mln:latest
+                  build-args: |
+                      VITE_TOMTOM_API_KEY=${{ secrets.VITE_TOMTOM_API_KEY }}