Define Actions job for building and pushing Docker prod image to Harbor

#5

.github/workflows/.ci.yml

@@ -1,6 +1,11 @@
 name: CI
 on:
   workflow_dispatch:
+    inputs:
+      push-docker-image-to-harbor:
+        description: 'Push Docker Image to Harbor'
+        type: boolean
+        default: false
   pull_request:
   push:
     branches:
@@ -106,3 +111,37 @@ jobs:
       - name: Output docker logs (minio)
         if: failure()
         run: docker logs object-storage-api-minio-1
+
+  docker:
+    # This job builds the production Docker image and if the workflow is manually triggered 
+    # while the `push-docker-image-to-harbor` input is set to `true`, it pushes it to Harbor.
+    needs: [linting, unit-tests, e2e-tests]
+    name: Docker
+    runs-on: ubuntu-latest
+    env:
+      PUSH_DOCKER_IMAGE_TO_HARBOR: ${{ inputs.push-docker-image-to-harbor != null && inputs.push-docker-image-to-harbor || 'false' }}
+    steps:
+      - name: Check out repo
+        uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4.2.1
+
+      - name: Login to Harbor
+        uses: docker/login-action@9780b0c442fbb1117ed29e0efdff1e18412f7567 # v3.3.0
+        with:
+          registry: ${{ secrets.HARBOR_URL }}
+          username: ${{ secrets.HARBOR_USERNAME }}
+          password: ${{ secrets.HARBOR_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@8e5442c4ef9f78752691e2d8f8d19755c6f78e81 # v5.5.1
+        with:
+          images: ${{ secrets.HARBOR_URL }}/object-storage-api
+
+      - name: ${{ fromJSON(env.PUSH_DOCKER_IMAGE_TO_HARBOR) && 'Build and push Docker image to Harbor' || 'Build Docker image' }}
+        uses: docker/build-push-action@4f58ea79222b3b9dc2c8bbdd6debcef730109a75 # v6.9.0
+        with:
+          context: .
+          push: ${{ fromJSON(env.PUSH_DOCKER_IMAGE_TO_HARBOR) }}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          target: prod