Update

.github/workflows/docker-image.yml

@@ -12,22 +12,50 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
+
+      - name: Install cosign
+        if: github.event_name != 'pull_request'
+        uses: sigstore/[email protected]
+        with:
+          cosign-release: 'v2.4.1'
+
       - name: Set up QEMU
-        uses: docker/setup-qemu-action@v3
+        uses: docker/[email protected]
+
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
+
       - name: Login to Quay.io
         uses: docker/login-action@v3
         with:
           registry: quay.io
           username: ${{ secrets.QUAY_USERNAME }}
           password: ${{ secrets.QUAY_ROBOT_TOKEN }}
+
+      - name: Extract Docker metadata
+        id: meta
+        uses: docker/[email protected]
+        with:
+          images: quay.io/ydrag0n/ring
+
       - name: Build and push
+        id: build-and-push
         uses: docker/build-push-action@v6
         with:
           context: .
           file: Dockerfile
-          platforms: linux/amd64,linux/arm64
+          platforms: linux/amd64
           push: true
           tags: quay.io/ydrag0n/ring:latest,quay.io/ydrag0n/ring:${{ github.ref_name }}
+          labels: ${{ steps.meta.outputs.labels }}
           outputs: type=image,name=target
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+
+      - name: Sign the published Docker image
+        if: ${{ github.event_name != 'pull_request' }}
+        env:
+          TAGS: ${{ steps.meta.outputs.tags }}
+          DIGEST: ${{ steps.build-and-push.outputs.digest }}
+        run: echo "${TAGS}" | xargs -I {} cosign sign --yes {}@${DIGEST}
+