sign images (#9)

Signed-off-by: Dmitriy Safronov <zimniy@cyberbrain.pw>

.github/workflows/docker-publish.yml

@@ -99,23 +99,23 @@ jobs:
           mv /tmp/.buildx-cache-new /tmp/.buildx-cache
 
 
-      # # 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@v3.3.0
+      # 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@v3
         # with:
         #   cosign-release: 'v2.2.2'
 
-      # # 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: ${{ github.event_name != 'pull_request' }}
-      #   env:
-      #     COSIGN_EXPERIMENTAL: "true"
-      #   # This step uses the identity token to provision an ephemeral certificate
-      #   # against the sigstore community Fulcio instance.
-      #   run: echo "${{ steps.meta.outputs.tags }}" | xargs -I {} cosign sign {}@${{ steps.build-and-push.outputs.digest }}
+      # 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: ${{ github.event_name != 'pull_request' }}
+        env:
+          COSIGN_EXPERIMENTAL: "true"
+        # This step uses the identity token to provision an ephemeral certificate
+        # against the sigstore community Fulcio instance.
+        run: echo "${{ steps.meta.outputs.tags }}" | grep -E '^(.+):(.+)-(.+)-(.+)$|^(.+):([0-9]+).([0-9]+).([0-9]+)(.+)$' | xargs -I {} cosign sign --yes {}@${{ steps.build-and-push.outputs.digest }}