feat(gen): parallel six-arch build at large resource_class for cli repos#2028
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… repos For cli-flavour Go repos the generated go-build job now sets build_concurrency: auto and resource_class: large. GOCACHE persistence (architect-orb #838, orb v9.5.0+) makes warm builds fast, but the six-arch cross-compile is still cold after every go.sum bump, so parallelising it on a larger box removes the remaining critical-path cost. Service repos unchanged, no signing or nancy changes. Implements #2017; part of giantswarm/giantswarm#36941. Co-authored-by: Cursor <cursoragent@cursor.com>
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Problem
The generated
architect/go-buildjob is the critical-path CI gate on everyci.generate: trueGo repo. architect-orb #838 (orb v9.5.0+, already the pinnedOrbVersion: 9.5.2) persists$GOCACHEso warm builds are fast (measured 5.1x on muster), but thecli-flavour six-arch cross-compile is still cold after everygo.sumbump and runs sequentially on 2 vCPUs.Proposed solution
For
cli-flavour Go repos (the{{- if .ReleaseBinaries }}six-arch matrix block), the generatedgo-buildjob now sets the orb'sbuild_concurrency: autoandresource_class: large, so the cold cross-compile parallelises across cores instead of running sequentially.build_concurrencyis opt-in in the orb precisely because it only pays off at a largerresource_class.OrbVersionalready points at9.5.2(contains Update module golang.org/x/net to v0.22.0 #838 from v9.5.0) — no bump needed.mcp-kubernetes.cli.workflows.yml) regenerated; newTest_CLIParallelBuildasserts the knobs are cli-only.Acceptance criteria
OrbVersionpoints at the architect-orb release containing Update module golang.org/x/net to v0.22.0 #838 (9.5.2).workflows.ymlfor a cli-flavour repo setsbuild_concurrency+resource_class: largeongo-build.circleci_test.gopasses.Implements #2017; part of giantswarm/giantswarm#36941.
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