Build multi-arch image on native runners - #57
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Replace the single QEMU-emulated build with a matrix that builds each architecture on its own native runner (ubuntu-24.04 for amd64, ubuntu-24.04-arm for arm64), pushes each by digest with zstd compression, then assembles the manifest list in a merge job. This drops slow arm64 emulation. The bktools content hash is now computed in a dedicated version job and consumed by the merge job when it tags the manifest list. Trigger, registry, tag scheme and IAM role are unchanged.
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Adapts the improved multi-arch container build/upload approach from the
randomsecretproject.What changed
Replaces the single
ubuntu-latestjob that built both architectures via QEMU emulation (slow arm64) with three jobs and no emulation:version— installs bktools and computes the content-hash image tag, exposing it as a job output.build— a matrix that builds each arch on its own native runner (ubuntu-24.04for amd64,ubuntu-24.04-armfor arm64), pushing each by digest with zstd compression.merge— assembles the two digests into a single manifest list tagged with the content hash viadocker buildx imagetools create.Unchanged
main+workflow_dispatchbktools-image-version-hashcontent hashpublic.ecr.aws/q3z6g1h3/idcatidcat-ecr-publishThe
Dockerfileneeds no changes — each matrix runner builds natively for its own platform.🤖 Generated with Claude Code