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apiserver: update lease label key to apiserver.kubernetes.io/identity

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Signed-off-by: Andrew Sy Kim <andrewsy@google.com>
This commit is contained in:
Andrew Sy Kim
2022-12-19 13:27:29 -05:00
parent 2ca95b4df9
commit 3da0f1809c
4 changed files with 29 additions and 10 deletions
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21
pkg/controlplane/instance.go
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@@ -123,9 +123,11 @@ const (
// IdentityLeaseComponentLabelKey is used to apply a component label to identity lease objects, indicating:
// 1. the lease is an identity lease (different from leader election leases)
// 2. which component owns this lease
IdentityLeaseComponentLabelKey = "k8s.io/component"
IdentityLeaseComponentLabelKey = "apiserver.kubernetes.io/identity"
// KubeAPIServer defines variable used internally when referring to kube-apiserver component
KubeAPIServer = "kube-apiserver"
// DeprecatedKubeAPIServerIdentityLeaseLabelSelector selects kube-apiserver identity leases
DeprecatedKubeAPIServerIdentityLeaseLabelSelector = "k8s.io/component=kube-apiserver"
// KubeAPIServerIdentityLeaseLabelSelector selects kube-apiserver identity leases
KubeAPIServerIdentityLeaseLabelSelector = IdentityLeaseComponentLabelKey + "=" + KubeAPIServer
// repairLoopInterval defines the interval used to run the Services ClusterIP and NodePort repair loops
@@ -509,6 +511,23 @@ func (c completedConfig) New(delegationTarget genericapiserver.DelegationTarget)
go controller.Run(hookContext.StopCh)
return nil
})
// Labels for apiserver idenitiy leases switched from k8s.io/component=kube-apiserver to apiserver.kubernetes.io/identity=kube-apiserver.
// For compatibility, garbage collect leases with both labels for at least 1 release
// TODO: remove in Kubernetes 1.28
m.GenericAPIServer.AddPostStartHookOrDie("start-deprecated-kube-apiserver-identity-lease-garbage-collector", func(hookContext genericapiserver.PostStartHookContext) error {
kubeClient, err := kubernetes.NewForConfig(hookContext.LoopbackClientConfig)
if err != nil {
return err
}
go apiserverleasegc.NewAPIServerLeaseGC(
kubeClient,
IdentityLeaseGCPeriod,
metav1.NamespaceSystem,
DeprecatedKubeAPIServerIdentityLeaseLabelSelector,
).Run(hookContext.StopCh)
return nil
})
// TODO: move this into generic apiserver and make the lease identity value configurable
m.GenericAPIServer.AddPostStartHookOrDie("start-kube-apiserver-identity-lease-garbage-collector", func(hookContext genericapiserver.PostStartHookContext) error {
kubeClient, err := kubernetes.NewForConfig(hookContext.LoopbackClientConfig)
if err != nil {