Build lang-SDK k8s test artifacts from the checkout's own SDKs - #71620
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Build lang-SDK k8s test artifacts from the checkout's own SDKs#71620rjgoyln wants to merge 1 commit into
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The lang-SDK Kubernetes test exists to prove a Go/Java worker and the Python supervisor speak the same AIP-72 wire schema. Sourcing the SDKs from upstream main on a release branch pairs a newer SDK with that branch's older supervisor -- a combination no release contains -- so the test stops describing the branch it runs on, and every worker task fails outright the moment main moves the schema version forward. The checkout is what ships together, so it is what gets built. Fetching from upstream remains only for a checkout old enough to have no SDKs at all, where the test could otherwise not run.
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August 14, 2026 17:04
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August 14, 2026 17:04
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Summary
The lang-SDK Kubernetes test builds its Go and Java worker artifacts from upstream
mainon any run that does not targetmain, pairing main's SDK with the checked-out branch's supervisor — a combination no release ships. Since #69757 moved the AIP-72 supervisor schema to2026-10-30, everyv3-3-testrun fails: the Go bundle announces a version that branch's supervisor does not know, so it is rejected andgo_extractdies withcannot find executable bundle with usable supervisor_schema_version.A worker and a supervisor only agree on the wire schema when they come from the same checkout, so that is what the test builds now. The upstream fetch survives for a checkout that has no
go-sdk//java-sdk/at all, narrowed to whichever SDK is absent.mainkeeps building its own SDKs as it already does.v3-3-teststays red until this is cherry-picked there, so it needs thebackport-to-v3-3-testlabel before merge.related: #71527, #71588
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