ci: Update build-n-publish workflow

.github/workflows/docker-publish..yml

@@ -1,10 +1,5 @@
 name: Publish Docker Image to GHCR
 
-# This workflow uses actions that are not certified by GitHub.
-# They are provided by a third-party and are governed by
-# separate terms of service, privacy policy, and support
-# documentation.
-
 on:
   workflow_dispatch: 
   release:
@@ -28,69 +23,84 @@ jobs:
       # This is used to complete the identity challenge
       # with sigstore/fulcio when running outside of PRs.
       id-token: write
+    strategy:
+      matrix:
+        platform:
+          - linux/amd64
+          - linux/arm64
+          # - linux/arm/v6
+          # - linux/arm/v7
 
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
 
-      - name: Setup Docker buildx
-        uses: docker/setup-buildx-action@f95db51fddba0c2d1ec667646a06c2ce06100226
-
-      # Login against a Docker registry only when tag "vM.M.P"
-      # https://github.com/docker/login-action
-      - name: Login to image registry ${{ env.REGISTRY }}
-        if: startsWith(github.ref, 'refs/tags/v')
-        uses: docker/login-action@343f7c4344506bcbf9b4de18042ae17996df046d
-        with:
-          registry: ${{ env.REGISTRY }}
-          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@8e5442c4ef9f78752691e2d8f8d19755c6f78e81
+        uses: docker/metadata-action@v4
         with:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
           flavor: |
             latest=auto          
           tags: |
+            type=schedule
             type=ref,event=branch
             type=ref,event=pr
             type=semver,pattern={{version}}
-            type=semver,pattern={{major}}.{{minor}}          
+            type=semver,pattern={{major}}.{{minor}}
+            type=semver,pattern={{major}}
+            type=sha  
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Setup Docker buildx
+        uses: docker/setup-buildx-action@v3
+
+      # login to ghcr only when tagged with "v*"
+      - name: Login to image registry ${{ env.REGISTRY }}
+        if: startsWith(github.ref, 'refs/tags/v')
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
 
       # 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
         id: build-and-push
         uses: docker/build-push-action@v5
         with:
           context: .
-          push: ${{ startsWith(github.ref, 'refs/tags/v') }}
+          platforms: ${{ matrix.platform }}
+          #push: ${{ startsWith(github.ref, 'refs/tags/v') }}
+          push: false
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
-          cache-from: type=gha
-          cache-to: type=gha,mode=max
+          annotations: ${{ steps.meta.outputs.annotations }}
+          provenance: mode=max
+          sbom: true
+          # BuildKit doesn't preserve cache mounts in the GitHub Actions cache by default
+          # see: https://docs.docker.com/build/ci/github-actions/cache/#cache-mounts
+          # cache-from: type=gha
+          # cache-to: type=gha,mode=max
 
       # Install the cosign tool except on PR
       # https://github.com/sigstore/cosign-installer
       - name: Install cosign
-        if: startsWith(github.ref, 'refs/tags/v')
-        uses: sigstore/cosign-installer@main
-        with:
-          cosign-release: 'v1.13.1'
+        #if: startsWith(github.ref, 'refs/tags/v')
+        uses: sigstore/[email protected]
 
-      # 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: startsWith(github.ref, 'refs/tags/v')
+      - name: Sign the images with GitHub OIDC Token
+        #if: startsWith(github.ref, 'refs/tags/v')
         env:
-          COSIGN_EXPERIMENTAL: "true"
-        # This step uses the identity token to provision an ephemeral certificate
-        # against the sigstore community Fulcio instance.
-        run: echo "${{ steps.meta.outputs.tags }}" | xargs -I {} cosign sign {}@${{ steps.build-and-push.outputs.digest }}
+          DIGEST: ${{ steps.build-and-push.outputs.digest }}
+          TAGS: ${{ steps.meta.outputs.tags }}
+        run: |
+          images=""
+          for tag in ${TAGS}; do
+            images+="${tag}@${DIGEST} "
+          done
+          cosign sign --yes ${images}