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feat(docker): Add multi-platform support for Docker build #541

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feat(docker): Add multi-platform support for Docker build #541

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1 change: 1 addition & 0 deletions .github/actions/docker-publish/action.yaml
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Expand Up @@ -72,6 +72,7 @@ runs:
id: publish
with:
context: ${{ inputs.context }}
platforms: linux/amd64,linux/arm64
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@cursor cursor Bot Apr 20, 2026

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Multi-platform builds produce empty imageid output

Low Severity

Adding platforms: linux/amd64,linux/arm64 causes docker/build-push-action to produce an empty imageid output, since multi-platform builds create a manifest list rather than a single image. The composite action still declares imageid as an output and displays it in the build summary, both of which will now always be empty strings. Any downstream consumer relying on this output will silently receive no value.

Additional Locations (2)
Fix in Cursor Fix in Web

Reviewed by Cursor Bugbot for commit 09dfbca. Configure here.

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@cursor cursor Bot Apr 20, 2026

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Missing QEMU setup breaks arm64 platform build

High Severity

Adding platforms: linux/amd64,linux/arm64 requires QEMU emulation for arm64 on x86_64 GitHub Actions runners, but docker/setup-qemu-action is not present before docker/setup-buildx-action. The Dockerfile's final stage (FROM debian:bookworm-slim) runs apt-get under the target platform, which will fail for arm64 without QEMU's binfmt_misc handlers registered. The build stages avoid this by using --platform=$BUILDPLATFORM, but the runtime stage does not.

Fix in Cursor Fix in Web

Reviewed by Cursor Bugbot for commit 09dfbca. Configure here.

file: ${{ inputs.dockerfile }}
push: true
tags: ${{ steps.meta.outputs.tags }}
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