use native go cross-compiling #260
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Signed-off-by: Avi Deitcher <avi@deitcher.net>
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Build took 5.5 minutes, vs 20-25 mins before. I think we can consider this a win. |
displague
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Apr 25, 2022
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We call the builds by passing
--platformsto thedocker buildx build, whether directly or via the GitHub actiondocker/build-push-action.Either way, this causes it to run every command under qemu, so that non-native builds take about 4-5x as long as the native ones. See a typical build and issue #257 .
This proposes to fix the biggest problem, i.e. those emulated builds. Instead of emulating the entire process, this will run the actual build (as well as
go mod downloadand every other step except for image assembly) on the native platform, but cross-compiling.Local tests show that the result is that building for both native and alternate platforms are within a few percentage points of each other. We will let CI run here and see what it reports.