vendor: Update vendor logic

vendor/k8s.io/apiserver/pkg/admission/initializer/initializer.go

@@ -21,25 +21,30 @@ import (
 	"k8s.io/apiserver/pkg/authorization/authorizer"
 	"k8s.io/client-go/informers"
 	"k8s.io/client-go/kubernetes"
+	"k8s.io/component-base/featuregate"
 )
 
 type pluginInitializer struct {
 	externalClient    kubernetes.Interface
 	externalInformers informers.SharedInformerFactory
 	authorizer        authorizer.Authorizer
+	featureGates      featuregate.FeatureGate
 }
 
 // New creates an instance of admission plugins initializer.
-// TODO(p0lyn0mial): make the parameters public, this construction seems to be redundant.
+// This constructor is public with a long param list so that callers immediately know that new information can be expected
+// during compilation when they update a level.
 func New(
 	extClientset kubernetes.Interface,
 	extInformers informers.SharedInformerFactory,
 	authz authorizer.Authorizer,
+	featureGates featuregate.FeatureGate,
 ) pluginInitializer {
 	return pluginInitializer{
 		externalClient:    extClientset,
 		externalInformers: extInformers,
 		authorizer:        authz,
+		featureGates:      featureGates,
 	}
 }
 
@@ -57,6 +62,10 @@ func (i pluginInitializer) Initialize(plugin admission.Interface) {
 	if wants, ok := plugin.(WantsAuthorizer); ok {
 		wants.SetAuthorizer(i.authorizer)
 	}
+
+	if wants, ok := plugin.(WantsFeatures); ok {
+		wants.InspectFeatureGates(i.featureGates)
+	}
 }
 
 var _ admission.PluginInitializer = pluginInitializer{}

vendor/k8s.io/apiserver/pkg/admission/initializer/interfaces.go

@@ -21,6 +21,7 @@ import (
 	"k8s.io/apiserver/pkg/authorization/authorizer"
 	"k8s.io/client-go/informers"
 	"k8s.io/client-go/kubernetes"
+	"k8s.io/component-base/featuregate"
 )
 
 // WantsExternalKubeClientSet defines a function which sets external ClientSet for admission plugins that need it
@@ -40,3 +41,14 @@ type WantsAuthorizer interface {
 	SetAuthorizer(authorizer.Authorizer)
 	admission.InitializationValidator
 }
+
+// WantsFeatureGate defines a function which passes the featureGates for inspection by an admission plugin.
+// Admission plugins should not hold a reference to the featureGates.  Instead, they should query a particular one
+// and assign it to a simple bool in the admission plugin struct.
+// func (a *admissionPlugin) InspectFeatureGates(features featuregate.FeatureGate){
+//     a.myFeatureIsOn = features.Enabled("my-feature")
+// }
+type WantsFeatures interface {
+	InspectFeatureGates(featuregate.FeatureGate)
+	admission.InitializationValidator
+}