Update to kube v1.17

Signed-off-by: Humble Chirammal <hchiramm@redhat.com>

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

@@ -0,0 +1,54 @@
+/*
+Copyright 2017 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package initializer
+
+import (
+	"k8s.io/apiserver/pkg/admission"
+	"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
+type WantsExternalKubeClientSet interface {
+	SetExternalKubeClientSet(kubernetes.Interface)
+	admission.InitializationValidator
+}
+
+// WantsExternalKubeInformerFactory defines a function which sets InformerFactory for admission plugins that need it
+type WantsExternalKubeInformerFactory interface {
+	SetExternalKubeInformerFactory(informers.SharedInformerFactory)
+	admission.InitializationValidator
+}
+
+// WantsAuthorizer defines a function which sets Authorizer for admission plugins that need it.
+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
+}