Update go dependencies

vendor/k8s.io/apiserver/pkg/features/OWNERS

@@ -0,0 +1,4 @@
+# See the OWNERS docs at https://go.k8s.io/owners
+
+approvers:
+- feature-approvers

vendor/k8s.io/apiserver/pkg/features/kube_features.go

@@ -0,0 +1,158 @@
+/*
+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 features
+
+import (
+	"k8s.io/apimachinery/pkg/util/runtime"
+
+	utilfeature "k8s.io/apiserver/pkg/util/feature"
+	"k8s.io/component-base/featuregate"
+)
+
+const (
+	// Every feature gate should add method here following this template:
+	//
+	// // owner: @username
+	// // alpha: v1.4
+	// MyFeature() bool
+
+	// owner: @tallclair
+	// alpha: v1.5
+	// beta: v1.6
+	//
+	// StreamingProxyRedirects controls whether the apiserver should intercept (and follow)
+	// redirects from the backend (Kubelet) for streaming requests (exec/attach/port-forward).
+	StreamingProxyRedirects featuregate.Feature = "StreamingProxyRedirects"
+
+	// owner: @tallclair
+	// alpha: v1.10
+	// beta: v1.14
+	//
+	// ValidateProxyRedirects controls whether the apiserver should validate that redirects are only
+	// followed to the same host. Only used if StreamingProxyRedirects is enabled.
+	ValidateProxyRedirects featuregate.Feature = "ValidateProxyRedirects"
+
+	// owner: @tallclair
+	// alpha: v1.7
+	// beta: v1.8
+	// GA: v1.12
+	//
+	// AdvancedAuditing enables a much more general API auditing pipeline, which includes support for
+	// pluggable output backends and an audit policy specifying how different requests should be
+	// audited.
+	AdvancedAuditing featuregate.Feature = "AdvancedAuditing"
+
+	// owner: @pbarker
+	// alpha: v1.13
+	//
+	// DynamicAuditing enables configuration of audit policy and webhook backends through an
+	// AuditSink API object.
+	DynamicAuditing featuregate.Feature = "DynamicAuditing"
+
+	// owner: @ilackams
+	// alpha: v1.7
+	//
+	// Enables compression of REST responses (GET and LIST only)
+	APIResponseCompression featuregate.Feature = "APIResponseCompression"
+
+	// owner: @smarterclayton
+	// alpha: v1.8
+	// beta: v1.9
+	//
+	// Allow API clients to retrieve resource lists in chunks rather than
+	// all at once.
+	APIListChunking featuregate.Feature = "APIListChunking"
+
+	// owner: @apelisse
+	// alpha: v1.12
+	// beta: v1.13
+	//
+	// Allow requests to be processed but not stored, so that
+	// validation, merging, mutation can be tested without
+	// committing.
+	DryRun featuregate.Feature = "DryRun"
+
+	// owner: @caesarxuchao
+	// alpha: v1.15
+	//
+	// Allow apiservers to show a count of remaining items in the response
+	// to a chunking list request.
+	RemainingItemCount featuregate.Feature = "RemainingItemCount"
+
+	// owner: @apelisse, @lavalamp
+	// alpha: v1.14
+	//
+	// Server-side apply. Merging happens on the server.
+	ServerSideApply featuregate.Feature = "ServerSideApply"
+
+	// owner: @caesarxuchao
+	// alpha: v1.14
+	// beta: v1.15
+	//
+	// Allow apiservers to expose the storage version hash in the discovery
+	// document.
+	StorageVersionHash featuregate.Feature = "StorageVersionHash"
+
+	// owner: @ksubrmnn
+	// alpha: v1.14
+	//
+	// Allows kube-proxy to run in Overlay mode for Windows
+	WinOverlay featuregate.Feature = "WinOverlay"
+
+	// owner: @ksubrmnn
+	// alpha: v1.14
+	//
+	// Allows kube-proxy to create DSR loadbalancers for Windows
+	WinDSR featuregate.Feature = "WinDSR"
+
+	// owner: @wojtek-t
+	// alpha: v1.15
+	//
+	// Enables support for watch bookmark events.
+	WatchBookmark featuregate.Feature = "WatchBookmark"
+
+	// owner: @MikeSpreitzer @yue9944882
+	// alpha: v1.15
+	//
+	//
+	// Enables managing request concurrency with prioritization and fairness at each server
+	RequestManagement featuregate.Feature = "RequestManagement"
+)
+
+func init() {
+	runtime.Must(utilfeature.DefaultMutableFeatureGate.Add(defaultKubernetesFeatureGates))
+}
+
+// defaultKubernetesFeatureGates consists of all known Kubernetes-specific feature keys.
+// To add a new feature, define a key for it above and add it here. The features will be
+// available throughout Kubernetes binaries.
+var defaultKubernetesFeatureGates = map[featuregate.Feature]featuregate.FeatureSpec{
+	StreamingProxyRedirects: {Default: true, PreRelease: featuregate.Beta},
+	ValidateProxyRedirects:  {Default: true, PreRelease: featuregate.Beta},
+	AdvancedAuditing:        {Default: true, PreRelease: featuregate.GA},
+	DynamicAuditing:         {Default: false, PreRelease: featuregate.Alpha},
+	APIResponseCompression:  {Default: false, PreRelease: featuregate.Alpha},
+	APIListChunking:         {Default: true, PreRelease: featuregate.Beta},
+	DryRun:                  {Default: true, PreRelease: featuregate.Beta},
+	RemainingItemCount:      {Default: false, PreRelease: featuregate.Alpha},
+	ServerSideApply:         {Default: false, PreRelease: featuregate.Alpha},
+	StorageVersionHash:      {Default: true, PreRelease: featuregate.Beta},
+	WinOverlay:              {Default: false, PreRelease: featuregate.Alpha},
+	WinDSR:                  {Default: false, PreRelease: featuregate.Alpha},
+	WatchBookmark:           {Default: false, PreRelease: featuregate.Alpha},
+	RequestManagement:       {Default: false, PreRelease: featuregate.Alpha},
+}

vendor/k8s.io/apiserver/pkg/server/healthz/healthz.go

@@ -93,14 +93,6 @@ func InstallHandler(mux mux, checks ...HealthzChecker) {
 	InstallPathHandler(mux, "/healthz", checks...)
 }
 
-// InstallReadyzHandler registers handlers for health checking on the path
-// "/readyz" to mux. *All handlers* for mux must be specified in
-// exactly one call to InstallHandler. Calling InstallHandler more
-// than once for the same mux will result in a panic.
-func InstallReadyzHandler(mux mux, checks ...HealthzChecker) {
-	InstallPathHandler(mux, "/readyz", checks...)
-}
-
 // InstallPathHandler registers handlers for health checking on
 // a specific path to mux. *All handlers* for the path must be
 // specified in exactly one call to InstallPathHandler. Calling

vendor/k8s.io/apiserver/pkg/util/feature/feature_gate.go

@@ -0,0 +1,33 @@
+/*
+Copyright 2016 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 feature
+
+import (
+	"k8s.io/component-base/featuregate"
+)
+
+var (
+	// DefaultMutableFeatureGate is a mutable version of DefaultFeatureGate.
+	// Only top-level commands/options setup and the k8s.io/component-base/featuregate/testing package should make use of this.
+	// Tests that need to modify feature gates for the duration of their test should use:
+	//   defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.<FeatureName>, <value>)()
+	DefaultMutableFeatureGate featuregate.MutableFeatureGate = featuregate.NewFeatureGate()
+
+	// DefaultFeatureGate is a shared global FeatureGate.
+	// Top-level commands/options setup that needs to modify this feature gate should use DefaultMutableFeatureGate.
+	DefaultFeatureGate featuregate.FeatureGate = DefaultMutableFeatureGate
+)