ci: native per-arch builders (drop QEMU)#86
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amd64 on buildkit (node-3) + arm64 on buildkit-arm64 (arm64 Pi), native; buildx merges. Same client cert (shared buildkit-ca). QEMU arm64 Rust builds ran for hours. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Builds each architecture on its own native BuildKit builder and lets buildx merge the manifest, replacing QEMU-emulated arm64 (which ran for hours on Rust builds).
The cluster now runs two native BuildKit builders sharing one CA:
buildkit(amd64, node-3)buildkit-arm64(arm64 Pi)The runner's existing client cert (
BUILDKIT_TLS_DIR) authenticates to both. This PR keeps the primary remote endpoint forlinux/amd64anddocker buildx create --appends the arm64 endpoint (tcp://buildkit-arm64.dev.svc.cluster.local:1234) with--platform linux/arm64, reusing the same cacert/cert/key and verifying each endpoint against its own server SAN viaservername.build-push-actionkeepsplatforms: linux/amd64,linux/arm64.Note: this repo drives buildx via
docker buildx createdirectly (notdocker/setup-buildx-action), so the multi-node builder is assembled with--appendrather than the action'sappend:block — same idea.The
serverjob's pre-existingcargo clippy -D warningsfailure is unrelated to this change.🤖 Generated with Claude Code