# Docker Image Publishing

> multi-arch image publishing to GHCR via GitHub Actions Use when this capability is needed.

- Skill: `tomevault-io/docker-image-publishing` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add tomevault-io/docker-image-publishing`
- Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/docker-image-publishing/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: DevOps & Infra
- Author: tomevault-io (https://skillmd.com/u/tomevault-io)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/tomevault-io/docker-image-publishing

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# 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.

## Files
- `.github/workflows/publish.yml` (consolidated: build, merge, prune, cleanup)

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<!-- tomevault:4.0:skill_md:2026-04-12 -->