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Add /livez to kube-scheduler

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Health endpoint `/livez` only contains ping check.
This commit is contained in:
Eric Lin
2023-05-20 16:04:53 +00:00
parent f5d62f738a
commit 708180be69
3 changed files with 231 additions and 3 deletions
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7
cmd/kube-scheduler/app/server.go
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@@ -186,7 +186,7 @@ func Run(ctx context.Context, cc *schedulerserverconfig.CompletedConfig, sched *
// Start up the healthz server.
if cc.SecureServing != nil {
handler := buildHandlerChain(newHealthzAndMetricsHandler(&cc.ComponentConfig, cc.InformerFactory, isLeader, checks...), cc.Authentication.Authenticator, cc.Authorization.Authorizer)
handler := buildHandlerChain(newHealthEndpointsAndMetricsHandler(&cc.ComponentConfig, cc.InformerFactory, isLeader, checks...), cc.Authentication.Authenticator, cc.Authorization.Authorizer)
// TODO: handle stoppedCh and listenerStoppedCh returned by c.SecureServing.Serve
if _, _, err := cc.SecureServing.Serve(handler, 0, ctx.Done()); err != nil {
// fail early for secure handlers, removing the old error loop from above
@@ -288,11 +288,12 @@ func installMetricHandler(pathRecorderMux *mux.PathRecorderMux, informers inform
})
}
// newHealthzAndMetricsHandler creates a healthz server from the config, and will also
// newHealthEndpointsAndMetricsHandler creates an API health server from the config, and will also
// embed the metrics handler.
func newHealthzAndMetricsHandler(config *kubeschedulerconfig.KubeSchedulerConfiguration, informers informers.SharedInformerFactory, isLeader func() bool, checks ...healthz.HealthChecker) http.Handler {
func newHealthEndpointsAndMetricsHandler(config *kubeschedulerconfig.KubeSchedulerConfiguration, informers informers.SharedInformerFactory, isLeader func() bool, checks ...healthz.HealthChecker) http.Handler {
pathRecorderMux := mux.NewPathRecorderMux("kube-scheduler")
healthz.InstallHandler(pathRecorderMux, checks...)
healthz.InstallLivezHandler(pathRecorderMux)
installMetricHandler(pathRecorderMux, informers, isLeader)
slis.SLIMetricsWithReset{}.Install(pathRecorderMux)