[v18] Kubernetes: Handle GOAWAY requests#61256
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rosstimothy merged 2 commits intobranch/v18from Nov 17, 2025
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This is an attempt to address #57766. When a request is terminated because the upstream Kubernetes API Server GOAWAY chance is exceeded, clients are informed to retry by replying with a 429 status code and a Retry-After header. This deviates from the approaches taken in #57881 and #60695 to favor simplicity and avoid buffering request data in a teleport process. The downside to this approach is that it requires clients to properly handle retry requests.
espadolini
approved these changes
Nov 12, 2025
smallinsky
approved these changes
Nov 12, 2025
Follow up to #61142 which sets the response body so that clients which only look at the reason and not the headers will behave appropriately.
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Backport #61142 and #61264 to branch/v18
changelog: GOAWAY errors received from Kubernetes API Servers configured with a non-zero --goaway-chance are now forward to clients to be retried.