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kube-controller-manager: enable WatchListClient

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This commit is contained in:
Lukasz Szaszkiewicz 2024-06-27 09:01:06 +02:00
parent be00cded2d
commit 825091693d
2 changed files with 16 additions and 3 deletions
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13
cmd/kube-controller-manager/app/options/options.go
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@ -25,6 +25,7 @@ import (
utilerrors "k8s.io/apimachinery/pkg/util/errors" utilerrors "k8s.io/apimachinery/pkg/util/errors"
apiserveroptions "k8s.io/apiserver/pkg/server/options" apiserveroptions "k8s.io/apiserver/pkg/server/options"
utilfeature "k8s.io/apiserver/pkg/util/feature" utilfeature "k8s.io/apiserver/pkg/util/feature"
clientgofeaturegate "k8s.io/client-go/features"
clientset "k8s.io/client-go/kubernetes" clientset "k8s.io/client-go/kubernetes"
clientgokubescheme "k8s.io/client-go/kubernetes/scheme" clientgokubescheme "k8s.io/client-go/kubernetes/scheme"
restclient "k8s.io/client-go/rest" restclient "k8s.io/client-go/rest"
@ -33,10 +34,12 @@ import (
cpnames "k8s.io/cloud-provider/names" cpnames "k8s.io/cloud-provider/names"
cpoptions "k8s.io/cloud-provider/options" cpoptions "k8s.io/cloud-provider/options"
cliflag "k8s.io/component-base/cli/flag" cliflag "k8s.io/component-base/cli/flag"
"k8s.io/component-base/featuregate"
"k8s.io/component-base/logs" "k8s.io/component-base/logs"
logsapi "k8s.io/component-base/logs/api/v1" logsapi "k8s.io/component-base/logs/api/v1"
"k8s.io/component-base/metrics" "k8s.io/component-base/metrics"
cmoptions "k8s.io/controller-manager/options" cmoptions "k8s.io/controller-manager/options"
"k8s.io/klog/v2"
kubectrlmgrconfigv1alpha1 "k8s.io/kube-controller-manager/config/v1alpha1" kubectrlmgrconfigv1alpha1 "k8s.io/kube-controller-manager/config/v1alpha1"
kubecontrollerconfig "k8s.io/kubernetes/cmd/kube-controller-manager/app/config" kubecontrollerconfig "k8s.io/kubernetes/cmd/kube-controller-manager/app/config"
"k8s.io/kubernetes/cmd/kube-controller-manager/names" "k8s.io/kubernetes/cmd/kube-controller-manager/names"
@ -273,6 +276,16 @@ func (s *KubeControllerManagerOptions) Flags(allControllers []string, disabledBy
fs := fss.FlagSet("misc") fs := fss.FlagSet("misc")
fs.StringVar(&s.Master, "master", s.Master, "The address of the Kubernetes API server (overrides any value in kubeconfig).") fs.StringVar(&s.Master, "master", s.Master, "The address of the Kubernetes API server (overrides any value in kubeconfig).")
fs.StringVar(&s.Generic.ClientConnection.Kubeconfig, "kubeconfig", s.Generic.ClientConnection.Kubeconfig, "Path to kubeconfig file with authorization and master location information (the master location can be overridden by the master flag).") fs.StringVar(&s.Generic.ClientConnection.Kubeconfig, "kubeconfig", s.Generic.ClientConnection.Kubeconfig, "Path to kubeconfig file with authorization and master location information (the master location can be overridden by the master flag).")
if !utilfeature.DefaultFeatureGate.Enabled(featuregate.Feature(clientgofeaturegate.WatchListClient)) {
if err := utilfeature.DefaultMutableFeatureGate.OverrideDefault(featuregate.Feature(clientgofeaturegate.WatchListClient), true); err != nil {
// it turns out that there are some integration tests that start multiple control plane components which
// share global DefaultFeatureGate/DefaultMutableFeatureGate variables.
// in those cases, the above call will fail (FG already registered and cannot be overridden), and the error will be logged.
klog.Errorf("unable to set %s feature gate, err: %v", clientgofeaturegate.WatchListClient, err)
}
}
utilfeature.DefaultMutableFeatureGate.AddFlag(fss.FlagSet("generic")) utilfeature.DefaultMutableFeatureGate.AddFlag(fss.FlagSet("generic"))
return fss return fss

6
cmd/kube-controller-manager/app/options/options_test.go
View File

@ -1353,8 +1353,8 @@ func TestWatchListClientFlagChange(t *testing.T) {
func assertWatchListClientFeatureDefaultValue(t *testing.T) { func assertWatchListClientFeatureDefaultValue(t *testing.T) {
watchListClientDefaultValue := clientgofeaturegate.FeatureGates().Enabled(clientgofeaturegate.WatchListClient) watchListClientDefaultValue := clientgofeaturegate.FeatureGates().Enabled(clientgofeaturegate.WatchListClient)
if watchListClientDefaultValue { if !watchListClientDefaultValue {
t.Fatalf("expected %q feature gate to be disabled for KCM", clientgofeaturegate.WatchListClient) t.Fatalf("expected %q feature gate to be enabled for KCM", clientgofeaturegate.WatchListClient)
} }
} }
@ -1365,7 +1365,7 @@ func assertWatchListCommandLineDefaultValue(t *testing.T, fs *pflag.FlagSet) {
t.Fatalf("didn't find %q flag", fgFlagName) t.Fatalf("didn't find %q flag", fgFlagName)
} }
expectedWatchListClientString := "WatchListClient=true|false (BETA - default=false)" expectedWatchListClientString := "WatchListClient=true|false (BETA - default=true)"
if !strings.Contains(fg.Usage, expectedWatchListClientString) { if !strings.Contains(fg.Usage, expectedWatchListClientString) {
t.Fatalf("%q flag doesn't contain the expected usage for %v feature gate.\nExpected = %v\nUsage = %v", fgFlagName, clientgofeaturegate.WatchListClient, expectedWatchListClientString, fg.Usage) t.Fatalf("%q flag doesn't contain the expected usage for %v feature gate.\nExpected = %v\nUsage = %v", fgFlagName, clientgofeaturegate.WatchListClient, expectedWatchListClientString, fg.Usage)
} }