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kube-apiserver: use only one client in apiserver controllers

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Signed-off-by: Dr. Stefan Schimanski <stefan.schimanski@gmail.com>
This commit is contained in:
Dr. Stefan Schimanski 2023-10-10 16:49:56 +02:00
parent 755644a169
commit 581af9ba6d
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GPG Key ID: 4C68E0F19F95EC33
1 changed files with 3 additions and 16 deletions
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19
pkg/controlplane/instance.go
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@ -575,11 +575,6 @@ func (c completedConfig) New(delegationTarget genericapiserver.DelegationTarget)
if utilfeature.DefaultFeatureGate.Enabled(apiserverfeatures.APIServerIdentity) {
m.GenericAPIServer.AddPostStartHookOrDie("start-kube-apiserver-identity-lease-controller", func(hookContext genericapiserver.PostStartHookContext) error {
kubeClient, err := kubernetes.NewForConfig(hookContext.LoopbackClientConfig)
if err != nil {
return err
}
// generate a context from stopCh. This is to avoid modifying files which are relying on apiserver
// TODO: See if we can pass ctx to the current method
ctx := wait.ContextForChannel(hookContext.StopCh)
@ -591,7 +586,7 @@ func (c completedConfig) New(delegationTarget genericapiserver.DelegationTarget)
// must replace ':,[]' in [ip:port] to be able to store this as a valid label value
controller := lease.NewController(
clock.RealClock{},
kubeClient,
clientset,
holderIdentity,
int32(IdentityLeaseDurationSeconds),
nil,
@ -605,12 +600,8 @@ func (c completedConfig) New(delegationTarget genericapiserver.DelegationTarget)
})
// 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 {
return err
}
go apiserverleasegc.NewAPIServerLeaseGC(
kubeClient,
clientset,
IdentityLeaseGCPeriod,
metav1.NamespaceSystem,
KubeAPIServerIdentityLeaseLabelSelector,
@ -620,11 +611,7 @@ func (c completedConfig) New(delegationTarget genericapiserver.DelegationTarget)
}
m.GenericAPIServer.AddPostStartHookOrDie("start-legacy-token-tracking-controller", func(hookContext genericapiserver.PostStartHookContext) error {
kubeClient, err := kubernetes.NewForConfig(hookContext.LoopbackClientConfig)
if err != nil {
return err
}
go legacytokentracking.NewController(kubeClient).Run(hookContext.StopCh)
go legacytokentracking.NewController(clientset).Run(hookContext.StopCh)
return nil
})