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Cross-build arm64 container #334

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bgilbert opened this issue Mar 20, 2022 · 0 comments
Open

Cross-build arm64 container #334

bgilbert opened this issue Mar 20, 2022 · 0 comments
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enhancement New feature or request

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@bgilbert
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The arm64 container currently builds in an emulated arm64 host via qemu-user. It would be much more efficient to cross-build from amd64 by having the Dockerfile specify FROM --platform=$BUILDPLATFORM for the builder container and set GOARCH=$TARGETARCH. However, Buildah < 1.24.1 doesn't support --platform in FROM. Once a new enough Buildah has landed in ubuntu-latest, switch to cross-building, and re-enable arm64 container builds in PRs by dropping the pr-arches override.

Followup to #333. See also coreos/ignition#1337.
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@bgilbert