OCPBUGS-77944: ipi-conf-gcp: filter zones by machine type availability#75839
OCPBUGS-77944: ipi-conf-gcp: filter zones by machine type availability#75839stbenjam wants to merge 1 commit intoopenshift:mainfrom
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The zone selection for GCP control plane and compute nodes in us-central1 and us-south1 regions only filtered out AI zones but did not check whether the requested machine type was actually available in each zone. This caused ARM64 jobs using t2a-standard-4 to fail when us-central1-c was selected, since that zone does not offer t2a instances. Replace get_zones_from_region with get_zones_for_machine_type which queries gcloud compute machine-types list to find zones where the specific machine type is available, with a fallback to the previous behavior if the query returns no results. Also select zones independently for control plane and compute nodes, since heterogeneous clusters may use different machine types that are available in different zones. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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@stbenjam: This pull request references Jira Issue OCPBUGS-77944, which is valid. The bug has been moved to the POST state. 3 validation(s) were run on this bug
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A total of 5630 jobs have been affected by this change. The above listing is non-exhaustive and limited to 25 jobs. A full list of affected jobs can be found here Interacting with pj-rehearseComment: Once you are satisfied with the results of the rehearsals, comment: |
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Summary
t2a-standard-4is unavailable (e.g.us-central1-c)Problem
The
get_zones_from_regionfunction inipi-conf-gcp-commands.shonly filtered out AI zones but did not check whether the requested machine type was actually available in each zone. This caused ARM64 CI jobs to fail with:Affected job:
periodic-ci-openshift-multiarch-main-nightly-4.22-upgrade-from-stable-4.21-ocp-e2e-upgrade-gcp-ovnPass rate dropped from 100% to 40%.
Fix
Replace
get_zones_from_regionwithget_zones_for_machine_typewhich queriesgcloud compute machine-types listto find zones where the specific machine type is available, with a fallback to the previous behavior if the query returns no results.The separate
ipi-conf-gcp-zones-commands.shalready had a similarget_zones_by_machine_typefunction — this brings the same logic to the mainipi-conf-gcpchain.Bug
https://issues.redhat.com/browse/OCPBUGS-77944
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