remove ExpandPersistentVolume feature gate

plugin/pkg/admission/noderestriction/admission.go

@@ -71,8 +71,7 @@ type Plugin struct {
 	podsGetter     corev1lister.PodLister
 	nodesGetter    corev1lister.NodeLister
 
-	expandPersistentVolumesEnabled bool
-	expansionRecoveryEnabled       bool
+	expansionRecoveryEnabled bool
 }
 
 var (
@@ -83,7 +82,6 @@ var (
 
 // InspectFeatureGates allows setting bools without taking a dep on a global variable
 func (p *Plugin) InspectFeatureGates(featureGates featuregate.FeatureGate) {
-	p.expandPersistentVolumesEnabled = featureGates.Enabled(features.ExpandPersistentVolumes)
 	p.expansionRecoveryEnabled = featureGates.Enabled(features.RecoverVolumeExpansionFailure)
 }
 
@@ -336,10 +334,6 @@ func (p *Plugin) admitPodEviction(nodeName string, a admission.Attributes) error
 func (p *Plugin) admitPVCStatus(nodeName string, a admission.Attributes) error {
 	switch a.GetOperation() {
 	case admission.Update:
-		if !p.expandPersistentVolumesEnabled {
-			return admission.NewForbidden(a, fmt.Errorf("node %q is not allowed to update persistentvolumeclaim metadata", nodeName))
-		}
-
 		oldPVC, ok := a.GetOldObject().(*api.PersistentVolumeClaim)
 		if !ok {
 			return admission.NewForbidden(a, fmt.Errorf("unexpected type %T", a.GetOldObject()))

plugin/pkg/admission/noderestriction/admission_test.go

@@ -18,14 +18,15 @@ package noderestriction
 
 import (
 	"context"
-	"k8s.io/apiserver/pkg/util/feature"
-	featuregatetesting "k8s.io/component-base/featuregate/testing"
-	"k8s.io/kubernetes/pkg/features"
 	"reflect"
 	"strings"
 	"testing"
 	"time"
 
+	"k8s.io/apiserver/pkg/util/feature"
+	featuregatetesting "k8s.io/component-base/featuregate/testing"
+	"k8s.io/kubernetes/pkg/features"
+
 	corev1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/api/resource"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
@@ -1527,8 +1528,6 @@ func TestAdmitPVCStatus(t *testing.T) {
 			attributes := admission.NewAttributesRecord(
 				test.newObj, test.oldObj, schema.GroupVersionKind{},
 				metav1.NamespaceDefault, "foo", apiResource, test.subresource, operation, &metav1.CreateOptions{}, false, mynode)
-
-			defer featuregatetesting.SetFeatureGateDuringTest(t, feature.DefaultFeatureGate, features.ExpandPersistentVolumes, test.expansionFeatureEnabled)()
 			defer featuregatetesting.SetFeatureGateDuringTest(t, feature.DefaultFeatureGate, features.RecoverVolumeExpansionFailure, test.recoveryFeatureEnabled)()
 			a := &admitTestCase{
 				name:        test.name,

plugin/pkg/admission/resourcequota/admission_test.go

@@ -30,15 +30,12 @@ import (
 	"k8s.io/apiserver/pkg/admission"
 	"k8s.io/apiserver/pkg/admission/plugin/resourcequota"
 	resourcequotaapi "k8s.io/apiserver/pkg/admission/plugin/resourcequota/apis/resourcequota"
-	utilfeature "k8s.io/apiserver/pkg/util/feature"
 	"k8s.io/client-go/informers"
 	"k8s.io/client-go/kubernetes"
 	"k8s.io/client-go/kubernetes/fake"
 	testcore "k8s.io/client-go/testing"
 	"k8s.io/client-go/tools/cache"
-	featuregatetesting "k8s.io/component-base/featuregate/testing"
 	api "k8s.io/kubernetes/pkg/apis/core"
-	"k8s.io/kubernetes/pkg/features"
 	"k8s.io/kubernetes/pkg/quota/v1/install"
 )
 
@@ -408,8 +405,6 @@ func TestAdmitHandlesNegativePVCUpdates(t *testing.T) {
 	stopCh := make(chan struct{})
 	defer close(stopCh)
 
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.ExpandPersistentVolumes, true)()
-
 	kubeClient := fake.NewSimpleClientset(resourceQuota)
 	informerFactory := informers.NewSharedInformerFactory(kubeClient, 0)
 
@@ -458,8 +453,6 @@ func TestAdmitHandlesPVCUpdates(t *testing.T) {
 		},
 	}
 
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.ExpandPersistentVolumes, true)()
-
 	// start up quota system
 	stopCh := make(chan struct{})
 	defer close(stopCh)