Merge pull request #3 from catenax-ng/feat/add_docker_workflow

feat: Add docker registry workflow

.github/workflows/docker-hub-build.yml

@@ -0,0 +1,76 @@
+# Reference from https://github.com/eclipse-tractusx/app-dashboard/blob/main/.github/workflows/build-image.yaml
+# You might want to check the source for recent updates
+name: Build - Docker image (SemVer)
+
+on:
+  push:
+    branches:
+      - main
+    # trigger events for SemVer like tags
+    tags:
+      - 'v*.*.*'
+      - 'v*.*.*-*'
+  pull_request:
+    branches:
+      - main
+
+env:
+  IMAGE_NAMESPACE: "tractusx"
+  IMAGE_NAME: "vas-country-risk-backend"
+
+jobs:
+  docker:
+    runs-on: ubuntu-latest
+    permissions:
+      packages: write
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      # Create SemVer or ref tags dependent of trigger event
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v4
+        with:
+          images: |
+            ${{ env.IMAGE_NAMESPACE }}/${{ 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}}.{{minor}}
+
+      - 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: .
+          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: path/to/dedicated/notice-for-docker-image.md
+          username: ${{ secrets.DOCKER_HUB_USER }}
+          password: ${{ secrets.DOCKER_HUB_TOKEN }}
+          repository: ${{ env.IMAGE_NAMESPACE }}/${{ env.IMAGE_NAME }}