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Library for writing a Kubernetes-style API server.
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Andrew Sy Kim 53a2449e3c apiserver: exclude APF queue wait time from SLO latency metrics (#116420) 
* apiserver: add latency tracker for priority & fairness queue wait time

Signed-off-by: Andrew Sy Kim <andrewsy@google.com>

* apiserver: exclude priority & fairness wait times to SLO/SLI latency metrics

Signed-off-by: Andrew Sy Kim <andrewsy@google.com>

* apiserver: update TestLatencyTrackersFrom to check latency from PriorityAndFairnessTracker

Signed-off-by: Andrew Sy Kim <andrewsy@google.com>

* flowcontrol: add helper function observeQueueWaitTime to consolidate metric and latency tracker calls

Signed-off-by: Andrew Sy Kim <andrewsy@google.com>

* flowcontrol: replace time.Now() / time.Since() with clock.Now() / clock.Since() for better testability

Signed-off-by: Andrew Sy Kim <andrewsy@google.com>

* flowcontrol: add unit test TestQueueWaitTimeLatencyTracker to validate queue wait times recorded by latency tracker

Signed-off-by: Andrew Sy Kim <andrewsy@google.com>

---------

Signed-off-by: Andrew Sy Kim <andrewsy@google.com>

Kubernetes-commit: ee18f602523e11a80823a659bed8f70f98a12914
 		2023-03-15 07:35:21 +00:00
.github delete all duplicate empty blanks 2019-02-22 09:43:51 +08:00
pkg apiserver: exclude APF queue wait time from SLO latency metrics (#116420) 2023-03-15 07:35:21 +00:00
plugin/pkg Close body when Report non-OK status code 2022-10-09 11:22:10 +08:00
.import-restrictions convert .import-restrictions to yaml 2020-04-22 15:41:00 -07:00
CONTRIBUTING.md Update deprecated links 2019-02-04 13:28:31 -05:00
LICENSE Add README and LICENSE to staging repos 2017-10-23 16:39:02 +05:30
OWNERS Cleanup OWNERS files (No Activity in the last year) 2021-12-10 15:18:50 -05:00
README.md staging: add dummy commit to trigger gomod update (#106794) 2021-12-03 09:33:42 +00:00
SECURITY_CONTACTS update security contacts for apimachinery repos 2020-07-02 16:00:53 -04:00
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doc.go Make package paths referenced by import boss valid 2021-09-28 13:06:39 -04:00
go.mod apiserver: exclude APF queue wait time from SLO latency metrics (#116420) 2023-03-15 07:35:21 +00:00
go.sum apiserver: exclude APF queue wait time from SLO latency metrics (#116420) 2023-03-15 07:35:21 +00:00

README.md

apiserver

Generic library for building a Kubernetes aggregated API server.

Purpose

This library contains code to create Kubernetes aggregation server complete with delegated authentication and authorization, kubectl compatible discovery information, optional admission chain, and versioned types. It's first consumers are k8s.io/kubernetes, k8s.io/kube-aggregator, and github.com/kubernetes-incubator/service-catalog.

Compatibility

There are NO compatibility guarantees for this repository, yet. It is in direct support of Kubernetes, so branches will track Kubernetes and be compatible with that repo. As we more cleanly separate the layers, we will review the compatibility guarantee. We have a goal to make this easier to use in the future.

Where does it come from?

apiserver is synced from https://github.com/kubernetes/kubernetes/blob/master/staging/src/k8s.io/apiserver. Code changes are made in that location, merged into k8s.io/kubernetes and later synced here.

Things you should NOT do

  1. Directly modify any files under pkg in this repo. Those are driven from k8s.io/kubernetes/staging/src/k8s.io/apiserver.
  2. Expect compatibility. This repo is changing quickly in direct support of Kubernetes and the API isn't yet stable enough for API guarantees.