Skill: Docker image publishing

Goal

Provide a reusable GitHub Actions workflow to build/push multi-arch images to GHCR on tag pushes.

Conventions

• •Publish on tags v*.
• •Use native Intel or ARM runners for CI/CD. Don't use QEMU.
• •Use buildx + per-arch digest builds, then merge into a manifest.
• •Use docker/metadata-action for semver tag derivation.
• •Prioritize minimal images, taking advantage of caching and layers.
• •Prefer reproducible builds (minimize network fetches at runtime; pin versions when practical).

Files

• •.github/workflows/docker-publish.yml