devops: docker-hub release version

.github/workflows/release.yml

@@ -40,6 +40,12 @@ jobs:
       - name: Check Out Repo
         uses: actions/checkout@v2
 
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v3
+        with:
+          images: foomo/contentfulproxy
+
       - name: Login to Docker Hub
         uses: docker/login-action@v1
         with:
@@ -50,20 +56,15 @@ jobs:
         id: buildx
         uses: docker/setup-buildx-action@v1
 
-      - name: Set tag on output
-        id: vars
-        run: echo ::set-output name=tag::${GITHUB_REF#refs/*/}
-
       - name: Build and push
         id: docker_build
         uses: docker/build-push-action@v2
-        env:
-          RELEASE_VERSION: ${{ steps.vars.outputs.tag }}
         with:
           context: ./
           file: ./Dockerfile
           push: true
-          tags: ${{ secrets.DOCKER_HUB_USERNAME }}/contentfulproxy:$RELEASE_VERSION
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
 
       - name: Image digest
         run: echo ${{ steps.docker_build.outputs.digest }}