fix: Build - Docker image workflow

.github/workflows/build-master-backend.yml

@@ -19,22 +19,21 @@
 #   ********************************************************************************
 
 
-name: build-and-push-image-backend
+name: Build - Docker image (SemVer)
 
 on:
   push:
-    paths:
-      - 'demand-capacity-mgmt-backend/**'
-      - 'demand-capacity-mgmt-specification/**'
     branches:
-      - 'main'
+      - main
     tags:
       - 'v*.*.*'
       - 'v*.*.*-*'
+  pull_request:
+    branches:
+      - main
 
 env:
   IMAGE_NAME: 'demand-capacity-mgmt-backend'
-  REGISTRY: 'docker.io'
   IMAGE_NAMESPACE: 'tractusx'
 
 
@@ -49,46 +48,49 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v3
 
-      - name: Set up JDK 17
-        uses: actions/setup-java@v3
-        with:
-          java-version: '17'
-          distribution: 'temurin'
-
-      - name: Run Tests
-        run: ./demand-capacity-mgmt-backend/mvnw -B test
-
-      - name: Build
-        run: mvn -B package
-
-      - name: Login to GitHub Container Registry
-        uses: docker/login-action@v1
-        with:
-          registry: ${{ .env.REGISTRY }}
-          username: ${{ github.actor }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-
       # Create SemVer or ref tags dependent of trigger event
       - name: Docker meta
         id: meta
         uses: docker/metadata-action@v4
         with:
           images: |
-            ${{ env.REGISTRY }}/${{ github.repository }}/${{ env.IMAGE_NAME }}
+            ${{ env.IMAGE_NAMESPACE }}/${{ env.IMAGE_NAME }}
+          # Automatically prepare image tags; See action docs for more examples.
+          # semver patter will generate tags like these for example :1 :1.2 :1.2.3
           tags: |
             type=ref,event=branch
             type=ref,event=pr
             type=semver,pattern={{version}}
-            type=semver ,pattern={{major}}
+            type=semver,pattern={{major}}
             type=semver,pattern={{major}}.{{minor}}
 
-      - name: Build and push Docker image
-        uses: docker/build-push-action@v4
+      - name: DockerHub login
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v2
+        with:
+          # Use existing DockerHub credentials present as secrets
+          username: ${{ secrets.DOCKER_HUB_USER }}
+          password: ${{ secrets.DOCKER_HUB_TOKEN }}
+
+      - name: Build and push
+        uses: docker/build-push-action@v3
         with:
           context: .
-          file: ./build/backend/Dockerfile
-          #push: ${{ github.event_name != 'pull_request' }}
-          push: true
-          # build tag :latest
-          tags: ${{ steps.meta.outputs.tags }}, ${{ .env.REGISTRY }}/${{ github.repository }}/${{ .env.IMAGE_NAME }}:latest
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: |
+            ${{ steps.meta.outputs.tags }},
+            ${{ env.IMAGE_NAMESPACE }}/${{ env.IMAGE_NAME }}:latest
           labels: ${{ steps.meta.outputs.labels }}
+
+
+      # https://github.com/peter-evans/dockerhub-description
+      # Important step to push image description to DockerHub
+      - name: Update Docker Hub description
+        if: github.event_name != 'pull_request'
+        uses: peter-evans/dockerhub-description@v3
+        with:
+          # readme-filepath defaults to toplevel README.md, Only necessary if you have a dedicated file with your 'Notice for docker images'
+          readme-filepath: DOCKER_NOTICE.md
+          username: ${{ secrets.DOCKER_HUB_USER }}
+          password: ${{ secrets.DOCKER_HUB_TOKEN }}
+          repository: ${{ env.IMAGE_NAMESPACE }}/${{ env.IMAGE_NAME }}