Update release.yml

- Use Actions release versions
- Use current Actions versions
- Add cosign verify action
- Add pushing to DockerHub

.github/workflows/release.yml

@@ -19,7 +19,7 @@ jobs:
       contents: read
       packages: write
       # This is used to complete the identity challenge
-      # with sigstore/fulcio 
+      # with sigstore/fulcio
       id-token: write
 
     steps:
@@ -29,63 +29,66 @@ jobs:
       # Install the cosign tool
       # https://github.com/sigstore/cosign-installer
       - name: Install cosign
-        uses: sigstore/cosign-installer@f3c664df7af409cb4873aa5068053ba9d61a57b6 #v2.6.0
-        with:
-          cosign-release: 'v1.13.1'
-
+        uses: sigstore/[email protected]
 
-      # Workaround: https://github.com/docker/build-push-action/issues/461
+      # https://github.com/docker/setup-buildx-action
       - name: Setup Docker buildx
-        uses: docker/setup-buildx-action@79abd3f86f79a9d68a23c75a09a9a85889262adf
+        uses: docker/setup-buildx-action@v3
 
       # https://github.com/docker/login-action
       - name: Login to GHCR
-        uses: docker/login-action@28218f9b04b4f3f62068d7b6ce6ca5b26e35336c
+        uses: docker/login-action@v3
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
-      # Pushing to docker hub is disabled until repo is prepared
-
       # https://github.com/docker/login-action
-      # - name: Login to docker hub
-      #   uses: docker/login-action@28218f9b04b4f3f62068d7b6ce6ca5b26e35336c
-      #   with:
-      #     registry: docker.io
-      #     username: ${{ secrets.DOCKERHUB_USERNAME }}
-      #     password: ${{ secrets.DOCKERHUB_TOKEN }}
+      - name: Login to docker hub
+        uses: docker/login-action@v1
+        with:
+          registry: docker.io
+          username: ${{ secrets.DOCKER_USER }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
 
       # Extract metadata (tags, labels) for Docker
       # https://github.com/docker/metadata-action
       - name: Extract Docker metadata
         id: meta
-        uses: docker/metadata-action@98669ae865ea3cffbcbaa878cf57c20bbf1c6c38
+        uses: docker/metadata-action@v5
         with:
           images: |
             ghcr.io/${{ env.IMAGE_NAME }}
-        # ${{ env.IMAGE_NAME }}
+            ${{ env.IMAGE_NAME }}
 
       # Build and push Docker image with Buildx
       # https://github.com/docker/build-push-action
       - name: Build and push Docker image
         id: build-and-push
-        uses: docker/build-push-action@ac9327eae2b366085ac7f6a2d02df8aa8ead720a
+        uses: docker/build-push-action@v5
         with:
           context: .
+          push: true
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
           platforms: linux/amd64,linux/arm64,linux/armhf
           cache-from: type=gha
           cache-to: type=gha,mode=max
 
-      # 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
-        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 }}
+        run: >
+          echo "${{ steps.meta.outputs.tags }}" | xargs -I {}
+            cosign sign --yes
+              {}@${{ steps.build-and-push.outputs.digest }}
+
+      - name: Verify the signature of the published Docker image
+        env:
+          IDENTITY: "https://github.com/containrrr/shepherd/.github/workflows/release.yml@.*"
+          OIDC_ISSUER: https://token.actions.githubusercontent.com
+        run: >
+          echo "${{ steps.meta.outputs.tags }}" | xargs -I {}
+            cosign verify {}@${{ steps.build-and-push.outputs.digest }}
+              --certificate-identity-regexp=$IDENTITY --certificate-oidc-issuer=$OIDC_ISSUER