Build image using github actions and publish also to dockerhub

.github/workflows/docker-image.yml

@@ -0,0 +1,77 @@
+name: Build and Publish Docker Images
+
+on:
+  push:
+    branches: [ sparse-checkout ]
+  pull_request:
+    branches: [ sparse-checkout ]
+  workflow_dispatch:
+
+env:
+  #DOCKERHUB_ORG: orangecloudfoundry
+  DOCKERHUB_ORG: elpaasoci
+
+jobs:
+  build_and_publish:
+    name: build, test and publish
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v3
+    -
+      name: Login to DockerHub
+      uses: docker/login-action@v2
+      with:
+        username: ${{ secrets.DOCKERHUB_USERNAME }}
+        password: ${{ secrets.DOCKERHUB_PASSWORD }}
+    -
+      name: Login to GitHub Container Registry
+      uses: docker/login-action@v2
+      with:
+        registry: ghcr.io
+        username: ${{ github.repository_owner }}
+        password: ${{ secrets.GITHUB_TOKEN }}
+
+    - 
+      name: build docker images
+      run: | # shellcheck disable=SC2086
+          echo "Processing $IMAGE"
+          docker build -t $IMAGE --build-arg "base_image=paketobuildpacks/run-jammy-base:latest" .
+      env:
+        IMAGE: git-resource
+    -
+      name: publish git-resource image
+      uses: docker/build-push-action@v4.0.0
+      with:
+        context: ${{env.IMAGE}}
+        push: true
+        tags: |
+          ${{env.DOCKERHUB_ORG}}/${{env.IMAGE}}:latest
+          ${{env.DOCKERHUB_ORG}}/${{env.IMAGE}}:${{github.sha}}
+          ghcr.io/${{ github.repository }}:latest
+          ghcr.io/${{ github.repository }}:${{github.sha}}
+      env:
+        IMAGE: git-resource
+
+  check_published_images:
+    name: check published images
+    runs-on: ubuntu-latest
+    needs: [ build_and_publish ]
+    steps:
+      - # Currently we cannot use `docker manifest` without authentication, it results in "unauthorized: access token has insufficient scopes"
+        # Also, to save network bandwidth and reduce build time we avoid using `docker pull`
+        name: Login to DockerHub
+        uses: docker/login-action@v2
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_PASSWORD }}
+      -
+        name: check docker public images
+        run: |
+          echo "Processing $image: checking manifest for $DOCKERHUB_ORG/$IMAGE:$GITHUB_SHA"
+          docker manifest inspect $DOCKERHUB_ORG/$IMAGE:$GITHUB_SHA
+        env:
+          IMAGE: git-resource
+
+
+