Improved docker publish action to use official actions

.github/workflows/publish-docker.yml

@@ -14,40 +14,52 @@ on:
       - 'docs/**'
       - '**/*.md'
 
-env:
-  IMAGE_NAME: onmetal-api-controller-manager
-
 jobs:
-  test:
-    runs-on: self-hosted
-    steps:
-      - uses: actions/checkout@v2
-      - name: Run test build
-        run: |
-         docker build . --file Dockerfile
-
-  push:
-    # Ensure test job passes before pushing image.
-    needs: test
-
+  buildAndPush:
     runs-on: self-hosted
-    if: github.event_name == 'push'
     steps:
       - uses: actions/checkout@v2
-      - name: Build image
-        run: docker build . --file Dockerfile --tag image
-      - name: Login to registry
-        run: echo "${{ secrets.GITHUB_TOKEN }}" | docker login ghcr.io -u ${{ github.actor }} --password-stdin
-      - name: Push image
+      - uses: docker/metadata-action@v3
+        id: meta
+        with:
+          images: |
+            ghcr.io/${{ github.repository_owner }}/onmetal-api-controller-manager
+          tags: |
+            type=semver,pattern={{version}}
+            type=schedule
+            type=ref,event=branch
+            type=ref,event=tag
+            type=ref,event=pr
+            type=sha
+          flavor: |
+            latest=auto
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+        with:
+          platforms: all
+      # workaround for self-hosted runner
+      # https://github.com/mumoshu/actions-runner-controller-ci/commit/e91c8c0f6ca82aa7618010c6d2f417aa46c4a4bf
+      - name: Set up Docker Context for Buildx
+        id: buildx-context
         run: |
-          IMAGE_ID=ghcr.io/${{ github.repository_owner }}/$IMAGE_NAME
-          # Strip git ref prefix from version
-          VERSION=$(echo "${{ github.ref }}" | sed -e 's,.*/\(.*\),\1,')
-          # Strip "v" prefix from tag name
-          [[ "${{ github.ref }}" == "refs/tags/"* ]] && VERSION=$(echo $VERSION | sed -e 's/^v//')
-          # Use Docker `latest` tag convention
-          [ "$VERSION" == "main" ] && VERSION=latest
-          echo IMAGE_ID=$IMAGE_ID
-          echo VERSION=$VERSION
-          docker tag image $IMAGE_ID:$VERSION
-          docker push $IMAGE_ID:$VERSION
+          docker context create builders
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+        with:
+          version: latest
+          endpoint: builders # self-hosted
+      - name: Login to GHCR
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v1
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - name: Build and push
+        uses: docker/build-push-action@v2
+        with:
+          context: .
+          platforms: linux/amd64,linux/arm64
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}