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Merge pull request #88149 from yue9944882/feat/flow-control-ob

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Flowcontrol Obserbiliity: Add FS/PL UIDs into response headers
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Kubernetes Prow Robot 2020-02-20 12:31:58 -08:00 committed by GitHub
commit afa72e93cd
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1 changed files with 7 additions and 0 deletions
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7
staging/src/k8s.io/apiserver/pkg/server/filters/priority-and-fairness.go
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@ -37,6 +37,11 @@ type priorityAndFairnessKeyType int
const priorityAndFairnessKey priorityAndFairnessKeyType = iota
const (
responseHeaderMatchedPriorityLevelConfigurationUID = "X-Kubernetes-PF-PriorityLevelUID"
responseHeaderMatchedFlowSchemaUID = "X-Kubernetes-PF-FlowSchemaUID"
)
// PriorityAndFairnessClassification identifies the results of
// classification for API Priority and Fairness
type PriorityAndFairnessClassification struct {
@ -97,6 +102,8 @@ func WithPriorityAndFairness(
served = true
innerCtx := context.WithValue(ctx, priorityAndFairnessKey, classification)
innerReq := r.Clone(innerCtx)
w.Header().Set(responseHeaderMatchedPriorityLevelConfigurationUID, string(classification.PriorityLevelUID))
w.Header().Set(responseHeaderMatchedFlowSchemaUID, string(classification.FlowSchemaUID))
handler.ServeHTTP(w, innerReq)
}
digest := utilflowcontrol.RequestDigest{requestInfo, user}