Update docker-publish.yml

Author: sjunges

.github/workflows/docker-publish.yml

@@ -43,30 +43,21 @@ jobs:
       fail-fast: false
 
     steps:
-    
       - name: Checkout repository
         uses: actions/checkout@v4
+    
       - name: Prepare
-        # Sanitize platform name
         run: |
           platform=${{ matrix.platform }}
           echo "PLATFORM_PAIR=${platform//\//-}" >> $GITHUB_ENV
 
-      # Install the cosign tool except on PR
-      # https://github.com/sigstore/cosign-installer
-      # - name: Install cosign
-      #   if: github.event_name != 'pull_request'
-      #   uses: sigstore/cosign-installer@59acb6260d9c0ba8f4a2f9d9b48431a222b68e20 #v3.5.0
-      #   with:
-      #     cosign-release: 'v2.2.4'
-
-      # Set up BuildKit Docker container builder to be able to build
-      # multi-platform images and export cache
-      # https://github.com/docker/setup-buildx-action
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@f95db51fddba0c2d1ec667646a06c2ce06100226 # v3.0.0
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY_IMAGE }}
 
-      # Login against a Docker registry except on PR
+       # Login against a Docker registry except on PR
       # https://github.com/docker/login-action
       - name: Log into registry ${{ env.REGISTRY }}
         if: github.event_name != 'pull_request'
@@ -76,28 +67,21 @@ jobs:
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
-      # Extract metadata (tags, labels) for Docker
-      # https://github.com/docker/metadata-action
-      - name: Extract Docker metadata
-        id: meta
-        uses: docker/metadata-action@96383f45573cb7f253c731d3b3ab81c87ef81934 # v5.0.0
-        with:
-          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
 
-      # Build and push Docker image with Buildx (don't push on PR)
-      # https://github.com/docker/build-push-action
-      - name: Build and push Docker image
+      - name: Build and push by digest
         id: build
         uses: docker/build-push-action@v6
         with:
-          context: .
           platforms: ${{ matrix.platform }}
-          push: ${{ github.event_name != 'pull_request' }}
-          tags: ${{ steps.meta.outputs.tags }}
-          outputs: type=image,name-canonical=true,push=true 
           labels: ${{ steps.meta.outputs.labels }}
+          tags: ${{ env.REGISTRY_IMAGE }}
+          push: ${{ github.event_name != 'pull_request' }}
+          outputs: type=image,push-by-digest=true,name-canonical=true,push=true
           cache-from: type=gha
           cache-to: type=gha,mode=max
+
       - name: Export digest
         run: |
           mkdir -p ${{ runner.temp }}/digests
@@ -155,18 +139,4 @@ jobs:
       - name: Inspect image
         run: |
           docker buildx imagetools inspect ${{ env.REGISTRY_IMAGE }}:${{ steps.meta.outputs.version }}
-
-      # Sign the resulting Docker image digest except on PRs.
-      # This will only write to the public Rekor transparency log when the Docker
-      # repository is public to avoid leaking data.  If you would like to publish
-      # transparency data even for private images, pass --force to cosign below.
-      # https://github.com/sigstore/cosign
-      # - name: Sign the published Docker image
-      #   if: ${{ github.event_name != 'pull_request' }}
-      #   env:
-      #     # https://docs.github.com/en/actions/security-guides/security-hardening-for-github-actions#using-an-intermediate-environment-variable
-      #     TAGS: ${{ steps.meta.outputs.tags }}
-      #     DIGEST: ${{ steps.build-and-push.outputs.digest }}
-      #   # This step uses the identity token to provision an ephemeral certificate
-      #   # against the sigstore community Fulcio instance.
-      #   run: echo "${TAGS}" | xargs -I {} cosign sign --yes {}@${DIGEST}
+      #