Publish GHCR image as multi-arch manifest (amd64 + arm64)#11
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kderholtvisma merged 4 commits intomainfrom Apr 18, 2026
Merged
Publish GHCR image as multi-arch manifest (amd64 + arm64)#11kderholtvisma merged 4 commits intomainfrom
kderholtvisma merged 4 commits intomainfrom
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Match the minimal multi-arch pattern used in sibling repo mcp-github-action. The cache and manifest-verify step were added defensively but aren't required for arm64 support, and setup-qemu-action's default platforms already cover linux/amd64 and linux/arm64 so the explicit input was a no-op.
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Summary
docker/setup-qemu-action+docker/setup-buildx-actiontodocker-publish.ymlso the release workflow can cross-build for arm64 via QEMU emulation on the amd64 runner.docker/build-push-actionwithplatforms: linux/amd64,linux/arm64and GHA build cache (cache-from/to: type=gha,mode=max) so consumers on Apple Silicon / AWS Graviton get native arm64 binaries instead of emulating amd64.Verify multi-arch manifeststep that runsdocker buildx imagetools inspectand hard-fails the job if eitherlinux/amd64orlinux/arm64is missing from the pushed manifest — no silent regressions if a future Deno base image drops an arch.No Dockerfile changes:
denoland/deno:2.6.6already ships a multi-arch manifest, and the Dockerfile is arch-agnostic.SHAs for the two new actions were resolved live from
gh api releases/latestand pinned with version comments per existing repo discipline (docker/setup-qemu-action@ce360397/docker/setup-buildx-action@4d04d5d9, both v4.0.0).Test plan
pr-check.yml) passes:deno fmt --check,deno lint,deno check main.ts,deno test --allow-net.Release and Publishonmainsucceeds; the newVerify multi-arch manifeststep reports bothlinux/amd64andlinux/arm64.docker buildx imagetools inspect ghcr.io/tripletex/mcp-dependency-version:latestlocally shows both platforms post-release.