Lock ServerSideApply feature to true

hack/make-rules/test-cmd.sh

@@ -62,7 +62,7 @@ function run_kube_apiserver() {
   AUTHORIZATION_MODE="RBAC,AlwaysAllow"
 
   # Enable features
-  ENABLE_FEATURE_GATES="ServerSideApply=true"
+  ENABLE_FEATURE_GATES=""
 
   "${KUBE_OUTPUT_HOSTBIN}/kube-apiserver" \
     --bind-address="127.0.0.1" \

pkg/controller/clusterroleaggregation/clusterroleaggregation_controller.go

@@ -22,7 +22,6 @@ import (
 	"sort"
 	"time"
 
-	"k8s.io/apiserver/pkg/features"
 	rbacv1ac "k8s.io/client-go/applyconfigurations/rbac/v1"
 	"k8s.io/klog/v2"
 
@@ -33,7 +32,6 @@ import (
 	"k8s.io/apimachinery/pkg/labels"
 	utilruntime "k8s.io/apimachinery/pkg/util/runtime"
 	"k8s.io/apimachinery/pkg/util/wait"
-	utilfeature "k8s.io/apiserver/pkg/util/feature"
 	rbacinformers "k8s.io/client-go/informers/rbac/v1"
 	rbacclient "k8s.io/client-go/kubernetes/typed/rbac/v1"
 	rbaclisters "k8s.io/client-go/listers/rbac/v1"
@@ -125,7 +123,6 @@ func (c *ClusterRoleAggregationController) syncClusterRole(ctx context.Context,
 		return nil
 	}
 
-	if utilfeature.DefaultFeatureGate.Enabled(features.ServerSideApply) {
 	err = c.applyClusterRoles(ctx, sharedClusterRole.Name, newPolicyRules)
 	if errors.IsUnsupportedMediaType(err) { // TODO: Remove this fallback at least one release after ServerSideApply GA
 		// When Server Side Apply is not enabled, fallback to Update. This is required when running
@@ -134,9 +131,6 @@ func (c *ClusterRoleAggregationController) syncClusterRole(ctx context.Context,
 		// if the feature has been disabled using its feature flag.
 		err = c.updateClusterRoles(ctx, sharedClusterRole, newPolicyRules)
 	}
-	} else {
-		err = c.updateClusterRoles(ctx, sharedClusterRole, newPolicyRules)
-	}
 	return err
 }
 

pkg/features/kube_features.go

@@ -1034,7 +1034,7 @@ var defaultKubernetesFeatureGates = map[featuregate.Feature]featuregate.FeatureS
 
 	genericfeatures.OpenAPIV3: {Default: true, PreRelease: featuregate.Beta},
 
-	genericfeatures.ServerSideApply: {Default: true, PreRelease: featuregate.GA},
+	genericfeatures.ServerSideApply: {Default: true, PreRelease: featuregate.GA, LockToDefault: true}, // remove in 1.29
 
 	genericfeatures.ServerSideFieldValidation: {Default: true, PreRelease: featuregate.Beta},
 

staging/src/k8s.io/apiextensions-apiserver/pkg/apiserver/customresource_handler.go

@@ -69,12 +69,10 @@ import (
 	"k8s.io/apiserver/pkg/endpoints/handlers/responsewriters"
 	"k8s.io/apiserver/pkg/endpoints/metrics"
 	apirequest "k8s.io/apiserver/pkg/endpoints/request"
-	"k8s.io/apiserver/pkg/features"
 	"k8s.io/apiserver/pkg/registry/generic"
 	genericregistry "k8s.io/apiserver/pkg/registry/generic/registry"
 	genericfilters "k8s.io/apiserver/pkg/server/filters"
 	"k8s.io/apiserver/pkg/storage/storagebackend"
-	utilfeature "k8s.io/apiserver/pkg/util/feature"
 	flowcontrolrequest "k8s.io/apiserver/pkg/util/flowcontrol/request"
 	utilopenapi "k8s.io/apiserver/pkg/util/openapi"
 	"k8s.io/apiserver/pkg/util/webhook"
@@ -330,9 +328,7 @@ func (r *crdHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
 	supportedTypes := []string{
 		string(types.JSONPatchType),
 		string(types.MergePatchType),
-	}
-	if utilfeature.DefaultFeatureGate.Enabled(features.ServerSideApply) {
-		supportedTypes = append(supportedTypes, string(types.ApplyPatchType))
+		string(types.ApplyPatchType),
 	}
 
 	var handlerFunc http.HandlerFunc
@@ -849,7 +845,7 @@ func (r *crdHandler) getOrCreateServingInfoFor(uid types.UID, name string) (*crd
 			standardSerializers = append(standardSerializers, s)
 		}
 
-		requestScopes[v.Name] = &handlers.RequestScope{
+		reqScope := handlers.RequestScope{
 			Namer: handlers.ContextBasedNaming{
 				Namer:         meta.NewAccessor(),
 				ClusterScoped: clusterScoped,
@@ -880,9 +876,8 @@ func (r *crdHandler) getOrCreateServingInfoFor(uid types.UID, name string) (*crd
 
 			MaxRequestBodyBytes: r.maxRequestBodyBytes,
 		}
-		if utilfeature.DefaultFeatureGate.Enabled(features.ServerSideApply) {
+
 		resetFields := storages[v.Name].CustomResource.GetResetFields()
-			reqScope := *requestScopes[v.Name]
 		reqScope, err = scopeWithFieldManager(
 			typeConverter,
 			reqScope,
@@ -893,7 +888,6 @@ func (r *crdHandler) getOrCreateServingInfoFor(uid types.UID, name string) (*crd
 			return nil, err
 		}
 		requestScopes[v.Name] = &reqScope
-		}
 
 		scaleColumns, err := getScaleColumnsForVersion(crd, v.Name)
 		if err != nil {
@@ -914,7 +908,7 @@ func (r *crdHandler) getOrCreateServingInfoFor(uid types.UID, name string) (*crd
 		}
 		scaleScope.TableConvertor = scaleTable
 
-		if utilfeature.DefaultFeatureGate.Enabled(features.ServerSideApply) && subresources != nil && subresources.Scale != nil {
+		if subresources != nil && subresources.Scale != nil {
 			scaleScope, err = scopeWithFieldManager(
 				typeConverter,
 				scaleScope,
@@ -937,7 +931,7 @@ func (r *crdHandler) getOrCreateServingInfoFor(uid types.UID, name string) (*crd
 			ClusterScoped: clusterScoped,
 		}
 
-		if utilfeature.DefaultFeatureGate.Enabled(features.ServerSideApply) && subresources != nil && subresources.Status != nil {
+		if subresources != nil && subresources.Status != nil {
 			resetFields := storages[v.Name].Status.GetResetFields()
 			statusScope, err = scopeWithFieldManager(
 				typeConverter,
@@ -1400,11 +1394,8 @@ func hasServedCRDVersion(spec *apiextensionsv1.CustomResourceDefinitionSpec, ver
 
 // buildOpenAPIModelsForApply constructs openapi models from any validation schemas specified in the custom resource,
 // and merges it with the models defined in the static OpenAPI spec.
-// Returns nil models if the ServerSideApply feature is disabled, or the static spec is nil, or an error is encountered.
+// Returns nil models ifthe static spec is nil, or an error is encountered.
 func buildOpenAPIModelsForApply(staticOpenAPISpec *spec.Swagger, crd *apiextensionsv1.CustomResourceDefinition) (proto.Models, error) {
-	if !utilfeature.DefaultFeatureGate.Enabled(features.ServerSideApply) {
-		return nil, nil
-	}
 	if staticOpenAPISpec == nil {
 		return nil, nil
 	}

staging/src/k8s.io/apiextensions-apiserver/pkg/controller/openapi/builder/builder.go

@@ -340,11 +340,8 @@ func (b *builder) buildRoute(root, path, httpMethod, actionVerb, operationVerb s
 		supportedTypes := []string{
 			string(types.JSONPatchType),
 			string(types.MergePatchType),
+			string(types.ApplyPatchType),
 		}
-		if utilfeature.DefaultFeatureGate.Enabled(features.ServerSideApply) {
-			supportedTypes = append(supportedTypes, string(types.ApplyPatchType))
-		}
-
 		route.Consumes(supportedTypes...)
 	} else {
 		route.Consumes(runtime.ContentTypeJSON, runtime.ContentTypeYAML)

staging/src/k8s.io/apiextensions-apiserver/pkg/controller/openapi/builder/builder_test.go

@@ -31,8 +31,6 @@ import (
 	"k8s.io/apimachinery/pkg/util/json"
 	"k8s.io/apimachinery/pkg/util/sets"
 	"k8s.io/apiserver/pkg/endpoints"
-	"k8s.io/apiserver/pkg/features"
-	utilfeature "k8s.io/apiserver/pkg/util/feature"
 	"k8s.io/kube-openapi/pkg/validation/spec"
 	utilpointer "k8s.io/utils/pointer"
 )
@@ -540,10 +538,7 @@ func TestCRDRouteParameterBuilder(t *testing.T) {
 							actions.Insert(action)
 						}
 						if action == "patch" {
-							expected := []string{"application/json-patch+json", "application/merge-patch+json"}
-							if utilfeature.DefaultFeatureGate.Enabled(features.ServerSideApply) {
-								expected = append(expected, "application/apply-patch+yaml")
-							}
+							expected := []string{"application/json-patch+json", "application/merge-patch+json", "application/apply-patch+yaml"}
 							assert.Equal(t, operation.Consumes, expected)
 						} else {
 							assert.Equal(t, operation.Consumes, []string{"application/json", "application/yaml"})

staging/src/k8s.io/apiextensions-apiserver/test/integration/apply_test.go

@@ -26,15 +26,10 @@ import (
 	"k8s.io/apiextensions-apiserver/test/integration/fixtures"
 	"k8s.io/apimachinery/pkg/api/errors"
 	"k8s.io/apimachinery/pkg/types"
-	genericfeatures "k8s.io/apiserver/pkg/features"
-	utilfeature "k8s.io/apiserver/pkg/util/feature"
 	"k8s.io/client-go/dynamic"
-	featuregatetesting "k8s.io/component-base/featuregate/testing"
 )
 
 func TestApplyBasic(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	tearDown, config, _, err := fixtures.StartDefaultServer(t)
 	if err != nil {
 		t.Fatal(err)

staging/src/k8s.io/apiextensions-apiserver/test/integration/subresources_test.go

@@ -32,10 +32,7 @@ import (
 	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
 	"k8s.io/apimachinery/pkg/runtime/schema"
 	"k8s.io/apimachinery/pkg/types"
-	genericfeatures "k8s.io/apiserver/pkg/features"
-	utilfeature "k8s.io/apiserver/pkg/util/feature"
 	"k8s.io/client-go/dynamic"
-	featuregatetesting "k8s.io/component-base/featuregate/testing"
 
 	apiextensionsv1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1"
 	"k8s.io/apiextensions-apiserver/pkg/client/clientset/clientset"
@@ -387,8 +384,6 @@ func TestScaleSubresource(t *testing.T) {
 }
 
 func TestApplyScaleSubresource(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	tearDown, config, _, err := fixtures.StartDefaultServer(t)
 	if err != nil {
 		t.Fatal(err)

staging/src/k8s.io/apiserver/pkg/endpoints/installer.go

@@ -260,7 +260,7 @@ func (a *APIInstaller) registerResourceHandlers(path string, storage rest.Storag
 	}
 
 	var resetFields map[fieldpath.APIVersion]*fieldpath.Set
-	if a.group.OpenAPIModels != nil && utilfeature.DefaultFeatureGate.Enabled(features.ServerSideApply) {
+	if a.group.OpenAPIModels != nil {
 		if resetFieldsStrategy, isResetFieldsStrategy := storage.(rest.ResetFieldsStrategy); isResetFieldsStrategy {
 			resetFields = resetFieldsStrategy.GetResetFields()
 		}
@@ -599,7 +599,7 @@ func (a *APIInstaller) registerResourceHandlers(path string, storage rest.Storag
 	if a.group.MetaGroupVersion != nil {
 		reqScope.MetaGroupVersion = *a.group.MetaGroupVersion
 	}
-	if a.group.OpenAPIModels != nil && utilfeature.DefaultFeatureGate.Enabled(features.ServerSideApply) {
+	if a.group.OpenAPIModels != nil {
 		reqScope.FieldManager, err = fieldmanager.NewDefaultFieldManager(
 			a.group.TypeConverter,
 			a.group.UnsafeConvertor,
@@ -785,9 +785,7 @@ func (a *APIInstaller) registerResourceHandlers(path string, storage rest.Storag
 				string(types.JSONPatchType),
 				string(types.MergePatchType),
 				string(types.StrategicMergePatchType),
-			}
-			if utilfeature.DefaultFeatureGate.Enabled(features.ServerSideApply) {
-				supportedTypes = append(supportedTypes, string(types.ApplyPatchType))
+				string(types.ApplyPatchType),
 			}
 			handler := metrics.InstrumentRouteFunc(action.Verb, group, version, resource, subresource, requestScope, metrics.APIServerComponent, deprecated, removedRelease, restfulPatchResource(patcher, reqScope, admit, supportedTypes))
 			handler = utilwarning.AddWarningsHandler(handler, warnings)

staging/src/k8s.io/apiserver/pkg/endpoints/metrics/metrics.go

@@ -605,7 +605,7 @@ func CleanVerb(verb string, request *http.Request) string {
 	if verb == "WATCHLIST" {
 		reportedVerb = "WATCH"
 	}
-	if verb == "PATCH" && request.Header.Get("Content-Type") == string(types.ApplyPatchType) && utilfeature.DefaultFeatureGate.Enabled(features.ServerSideApply) {
+	if verb == "PATCH" && request.Header.Get("Content-Type") == string(types.ApplyPatchType) {
 		reportedVerb = "APPLY"
 	}
 	return reportedVerb

staging/src/k8s.io/apiserver/pkg/features/kube_features.go

@@ -231,7 +231,7 @@ var defaultKubernetesFeatureGates = map[featuregate.Feature]featuregate.FeatureS
 
 	RemoveSelfLink: {Default: true, PreRelease: featuregate.GA, LockToDefault: true},
 
-	ServerSideApply: {Default: true, PreRelease: featuregate.GA},
+	ServerSideApply: {Default: true, PreRelease: featuregate.GA, LockToDefault: true}, // remove in 1.29
 
 	ServerSideFieldValidation: {Default: true, PreRelease: featuregate.Beta},
 

staging/src/k8s.io/apiserver/pkg/registry/rest/create.go

@@ -30,9 +30,7 @@ import (
 	"k8s.io/apimachinery/pkg/util/validation/field"
 	"k8s.io/apiserver/pkg/admission"
 	genericapirequest "k8s.io/apiserver/pkg/endpoints/request"
-	"k8s.io/apiserver/pkg/features"
 	"k8s.io/apiserver/pkg/storage/names"
-	utilfeature "k8s.io/apiserver/pkg/util/feature"
 	"k8s.io/apiserver/pkg/warning"
 )
 
@@ -121,11 +119,6 @@ func BeforeCreate(strategy RESTCreateStrategy, ctx context.Context, obj runtime.
 
 	strategy.PrepareForCreate(ctx, obj)
 
-	// Ensure managedFields is not set unless the feature is enabled
-	if !utilfeature.DefaultFeatureGate.Enabled(features.ServerSideApply) {
-		objectMeta.SetManagedFields(nil)
-	}
-
 	if errs := strategy.Validate(ctx, obj); len(errs) > 0 {
 		return errors.NewInvalid(kind.GroupKind(), objectMeta.GetName(), errs)
 	}

staging/src/k8s.io/apiserver/pkg/registry/rest/update.go

@@ -29,8 +29,6 @@ import (
 	"k8s.io/apimachinery/pkg/util/validation/field"
 	"k8s.io/apiserver/pkg/admission"
 	genericapirequest "k8s.io/apiserver/pkg/endpoints/request"
-	"k8s.io/apiserver/pkg/features"
-	utilfeature "k8s.io/apiserver/pkg/util/feature"
 	"k8s.io/apiserver/pkg/warning"
 )
 
@@ -128,12 +126,6 @@ func BeforeUpdate(strategy RESTUpdateStrategy, ctx context.Context, obj, old run
 	}
 	objectMeta.SetGeneration(oldMeta.GetGeneration())
 
-	// Ensure managedFields state is removed unless ServerSideApply is enabled
-	if !utilfeature.DefaultFeatureGate.Enabled(features.ServerSideApply) {
-		oldMeta.SetManagedFields(nil)
-		objectMeta.SetManagedFields(nil)
-	}
-
 	strategy.PrepareForUpdate(ctx, obj, old)
 
 	// Use the existing UID if none is provided

staging/src/k8s.io/apiserver/pkg/server/genericapiserver.go

@@ -666,7 +666,7 @@ func (s *GenericAPIServer) installAPIResources(apiPrefix string, apiGroupInfo *A
 		}
 		apiGroupVersion.OpenAPIModels = openAPIModels
 
-		if openAPIModels != nil && utilfeature.DefaultFeatureGate.Enabled(features.ServerSideApply) {
+		if openAPIModels != nil {
 			typeConverter, err := fieldmanager.NewTypeConverter(openAPIModels, false)
 			if err != nil {
 				return err

test/integration/apiserver/apply/apply_crd_beta_test.go

@@ -29,10 +29,7 @@ import (
 	"k8s.io/apiextensions-apiserver/test/integration/fixtures"
 	apierrors "k8s.io/apimachinery/pkg/api/errors"
 	"k8s.io/apimachinery/pkg/types"
-	genericfeatures "k8s.io/apiserver/pkg/features"
-	utilfeature "k8s.io/apiserver/pkg/util/feature"
 	"k8s.io/client-go/dynamic"
-	featuregatetesting "k8s.io/component-base/featuregate/testing"
 	apiservertesting "k8s.io/kubernetes/cmd/kube-apiserver/app/testing"
 	"k8s.io/kubernetes/test/integration/framework"
 )
@@ -40,8 +37,6 @@ import (
 // TestApplyCRDNoSchema tests that CRDs and CRs can both be applied to with a PATCH request with the apply content type
 // when there is no validation field provided.
 func TestApplyCRDNoSchema(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	server, err := apiservertesting.StartTestServer(t, apiservertesting.NewDefaultTestServerOptions(), nil, framework.SharedEtcd())
 	if err != nil {
 		t.Fatal(err)

test/integration/apiserver/apply/apply_crd_test.go

@@ -41,10 +41,7 @@ import (
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
 	"k8s.io/apimachinery/pkg/types"
-	genericfeatures "k8s.io/apiserver/pkg/features"
-	utilfeature "k8s.io/apiserver/pkg/util/feature"
 	"k8s.io/client-go/dynamic"
-	featuregatetesting "k8s.io/component-base/featuregate/testing"
 	apiservertesting "k8s.io/kubernetes/cmd/kube-apiserver/app/testing"
 	"k8s.io/kubernetes/test/integration/framework"
 )
@@ -52,8 +49,6 @@ import (
 // TestApplyCRDStructuralSchema tests that when a CRD has a structural schema in its validation field,
 // it will be used to construct the CR schema used by apply.
 func TestApplyCRDStructuralSchema(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	server, err := apiservertesting.StartTestServer(t, apiservertesting.NewDefaultTestServerOptions(), nil, framework.SharedEtcd())
 	if err != nil {
 		t.Fatal(err)
@@ -418,8 +413,6 @@ func findCRDCondition(crd *apiextensionsv1.CustomResourceDefinition, conditionTy
 // TestApplyCRDUnhandledSchema tests that when a CRD has a schema that kube-openapi ToProtoModels cannot handle correctly,
 // apply falls back to non-schema behavior
 func TestApplyCRDUnhandledSchema(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	storageConfig := framework.SharedEtcd()
 	tlsInfo := transport.TLSInfo{
 		CertFile:      storageConfig.Transport.CertFile,
@@ -608,8 +601,6 @@ func getManagedFields(rawResponse []byte) ([]metav1.ManagedFieldsEntry, error) {
 }
 
 func TestDefaultMissingKeyCRD(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	server, err := apiservertesting.StartTestServer(t, apiservertesting.NewDefaultTestServerOptions(), nil, framework.SharedEtcd())
 	if err != nil {
 		t.Fatal(err)

test/integration/apiserver/apply/apply_test.go

@@ -23,7 +23,6 @@ import (
 	"fmt"
 	"net/http"
 	"reflect"
-	"strings"
 	"testing"
 	"time"
 
@@ -39,11 +38,8 @@ import (
 	"k8s.io/apimachinery/pkg/types"
 	"k8s.io/apimachinery/pkg/util/wait"
 	yamlutil "k8s.io/apimachinery/pkg/util/yaml"
-	genericfeatures "k8s.io/apiserver/pkg/features"
-	utilfeature "k8s.io/apiserver/pkg/util/feature"
 	clientset "k8s.io/client-go/kubernetes"
 	restclient "k8s.io/client-go/rest"
-	featuregatetesting "k8s.io/component-base/featuregate/testing"
 	kubeapiservertesting "k8s.io/kubernetes/cmd/kube-apiserver/app/testing"
 	"k8s.io/kubernetes/test/integration/framework"
 )
@@ -67,8 +63,6 @@ func setup(t testing.TB) (clientset.Interface, kubeapiservertesting.TearDownFunc
 // will create the object if it doesn't already exist
 // TODO: make a set of test cases in an easy-to-consume place (separate package?) so it's easy to test in both integration and e2e.
 func TestApplyAlsoCreates(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	client, closeFn := setup(t)
 	defer closeFn()
 
@@ -150,8 +144,6 @@ func TestApplyAlsoCreates(t *testing.T) {
 // TestNoOpUpdateSameResourceVersion makes sure that PUT requests which change nothing
 // will not change the resource version (no write to etcd is done)
 func TestNoOpUpdateSameResourceVersion(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	client, closeFn := setup(t)
 	defer closeFn()
 
@@ -264,8 +256,6 @@ func getRV(obj runtime.Object) (string, error) {
 // - Applying an atomic struct that removes a default
 // - Changing Quantity or other fields that are normalized
 func TestNoSemanticUpdateApplySameResourceVersion(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	client, closeFn := setup(t)
 	defer closeFn()
 
@@ -350,8 +340,6 @@ func TestNoSemanticUpdateApplySameResourceVersion(t *testing.T) {
 // - Applying an atomic struct that removes a default
 // - Changing Quantity or other fields that are normalized
 func TestNoSemanticUpdatePutSameResourceVersion(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	client, closeFn := setup(t)
 	defer closeFn()
 
@@ -431,8 +419,6 @@ func TestNoSemanticUpdatePutSameResourceVersion(t *testing.T) {
 // TestCreateOnApplyFailsWithUID makes sure that PATCH requests with the apply content type
 // will not create the object if it doesn't already exist and it specifies a UID
 func TestCreateOnApplyFailsWithUID(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	client, closeFn := setup(t)
 	defer closeFn()
 
@@ -463,8 +449,6 @@ func TestCreateOnApplyFailsWithUID(t *testing.T) {
 }
 
 func TestApplyUpdateApplyConflictForced(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	client, closeFn := setup(t)
 	defer closeFn()
 
@@ -553,8 +537,6 @@ func TestApplyUpdateApplyConflictForced(t *testing.T) {
 // TestApplyGroupsManySeparateUpdates tests that when many different managers update the same object,
 // the number of managedFields entries will only grow to a certain size.
 func TestApplyGroupsManySeparateUpdates(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	client, closeFn := setup(t)
 	defer closeFn()
 
@@ -617,8 +599,6 @@ func TestApplyGroupsManySeparateUpdates(t *testing.T) {
 
 // TestCreateVeryLargeObject tests that a very large object can be created without exceeding the size limit due to managedFields
 func TestCreateVeryLargeObject(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	client, closeFn := setup(t)
 	defer closeFn()
 
@@ -663,8 +643,6 @@ func TestCreateVeryLargeObject(t *testing.T) {
 
 // TestUpdateVeryLargeObject tests that a small object can be updated to be very large without exceeding the size limit due to managedFields
 func TestUpdateVeryLargeObject(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	client, closeFn := setup(t)
 	defer closeFn()
 
@@ -729,8 +707,6 @@ func TestUpdateVeryLargeObject(t *testing.T) {
 
 // TestPatchVeryLargeObject tests that a small object can be patched to be very large without exceeding the size limit due to managedFields
 func TestPatchVeryLargeObject(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	client, closeFn := setup(t)
 	defer closeFn()
 
@@ -788,8 +764,6 @@ func TestPatchVeryLargeObject(t *testing.T) {
 
 // TestApplyManagedFields makes sure that managedFields api does not change
 func TestApplyManagedFields(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	client, closeFn := setup(t)
 	defer closeFn()
 
@@ -915,8 +889,6 @@ func TestApplyManagedFields(t *testing.T) {
 
 // TestApplyRemovesEmptyManagedFields there are no empty managers in managedFields
 func TestApplyRemovesEmptyManagedFields(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	client, closeFn := setup(t)
 	defer closeFn()
 
@@ -967,8 +939,6 @@ func TestApplyRemovesEmptyManagedFields(t *testing.T) {
 }
 
 func TestApplyRequiresFieldManager(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	client, closeFn := setup(t)
 	defer closeFn()
 
@@ -1007,8 +977,6 @@ func TestApplyRequiresFieldManager(t *testing.T) {
 
 // TestApplyRemoveContainerPort removes a container port from a deployment
 func TestApplyRemoveContainerPort(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	client, closeFn := setup(t)
 	defer closeFn()
 
@@ -1111,8 +1079,6 @@ func TestApplyRemoveContainerPort(t *testing.T) {
 // TestApplyFailsWithVersionMismatch ensures that a version mismatch between the
 // patch object and the live object will error
 func TestApplyFailsWithVersionMismatch(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	client, closeFn := setup(t)
 	defer closeFn()
 
@@ -1208,8 +1174,6 @@ func TestApplyFailsWithVersionMismatch(t *testing.T) {
 // TestApplyConvertsManagedFieldsVersion checks that the apply
 // converts the API group-version in the field manager
 func TestApplyConvertsManagedFieldsVersion(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	client, closeFn := setup(t)
 	defer closeFn()
 
@@ -1351,8 +1315,6 @@ func TestApplyConvertsManagedFieldsVersion(t *testing.T) {
 
 // TestClearManagedFieldsWithMergePatch verifies it's possible to clear the managedFields
 func TestClearManagedFieldsWithMergePatch(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	client, closeFn := setup(t)
 	defer closeFn()
 
@@ -1407,8 +1369,6 @@ func TestClearManagedFieldsWithMergePatch(t *testing.T) {
 
 // TestClearManagedFieldsWithStrategicMergePatch verifies it's possible to clear the managedFields
 func TestClearManagedFieldsWithStrategicMergePatch(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	client, closeFn := setup(t)
 	defer closeFn()
 
@@ -1467,8 +1427,6 @@ func TestClearManagedFieldsWithStrategicMergePatch(t *testing.T) {
 
 // TestClearManagedFieldsWithJSONPatch verifies it's possible to clear the managedFields
 func TestClearManagedFieldsWithJSONPatch(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	client, closeFn := setup(t)
 	defer closeFn()
 
@@ -1523,8 +1481,6 @@ func TestClearManagedFieldsWithJSONPatch(t *testing.T) {
 
 // TestClearManagedFieldsWithUpdate verifies it's possible to clear the managedFields
 func TestClearManagedFieldsWithUpdate(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	client, closeFn := setup(t)
 	defer closeFn()
 
@@ -1597,8 +1553,6 @@ func TestClearManagedFieldsWithUpdate(t *testing.T) {
 
 // TestErrorsDontFail
 func TestErrorsDontFail(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	client, closeFn := setup(t)
 	defer closeFn()
 
@@ -1637,8 +1591,6 @@ func TestErrorsDontFail(t *testing.T) {
 }
 
 func TestErrorsDontFailUpdate(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	client, closeFn := setup(t)
 	defer closeFn()
 
@@ -1701,8 +1653,6 @@ func TestErrorsDontFailUpdate(t *testing.T) {
 }
 
 func TestErrorsDontFailPatch(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	client, closeFn := setup(t)
 	defer closeFn()
 
@@ -1751,8 +1701,6 @@ func TestErrorsDontFailPatch(t *testing.T) {
 }
 
 func TestApplyDoesNotChangeManagedFieldsViaSubresources(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	client, closeFn := setup(t)
 	defer closeFn()
 
@@ -1854,8 +1802,6 @@ func TestApplyDoesNotChangeManagedFieldsViaSubresources(t *testing.T) {
 
 // TestClearManagedFieldsWithUpdateEmptyList verifies it's possible to clear the managedFields by sending an empty list.
 func TestClearManagedFieldsWithUpdateEmptyList(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	client, closeFn := setup(t)
 	defer closeFn()
 
@@ -1939,8 +1885,6 @@ func TestClearManagedFieldsWithUpdateEmptyList(t *testing.T) {
 // TestApplyUnsetExclusivelyOwnedFields verifies that when owned fields are omitted from an applied
 // configuration, and no other managers own the field, it is removed.
 func TestApplyUnsetExclusivelyOwnedFields(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	client, closeFn := setup(t)
 	defer closeFn()
 
@@ -2048,8 +1992,6 @@ func TestApplyUnsetExclusivelyOwnedFields(t *testing.T) {
 // TestApplyUnsetSharedFields verifies that when owned fields are omitted from an applied
 // configuration, but other managers also own the field, is it not removed.
 func TestApplyUnsetSharedFields(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	client, closeFn := setup(t)
 	defer closeFn()
 
@@ -2160,8 +2102,6 @@ func TestApplyUnsetSharedFields(t *testing.T) {
 // object, a controller takes ownership of a field, and the applier
 // then omits the field from its applied configuration, that the field value persists.
 func TestApplyCanTransferFieldOwnershipToController(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	client, closeFn := setup(t)
 	defer closeFn()
 
@@ -2279,8 +2219,6 @@ func TestApplyCanTransferFieldOwnershipToController(t *testing.T) {
 // object, a controller modifies the contents of the map item via update, and the applier
 // then omits the item from its applied configuration, that the item is removed.
 func TestApplyCanRemoveMapItemsContributedToByControllers(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	client, closeFn := setup(t)
 	defer closeFn()
 
@@ -2399,8 +2337,6 @@ func TestApplyCanRemoveMapItemsContributedToByControllers(t *testing.T) {
 
 // TestDefaultMissingKeys makes sure that the missing keys default is used when merging.
 func TestDefaultMissingKeys(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	client, closeFn := setup(t)
 	defer closeFn()
 
@@ -2647,23 +2583,7 @@ func encodePod(pod v1.Pod) []byte {
 	return podBytes
 }
 
-func BenchmarkNoServerSideApply(b *testing.B) {
-	defer featuregatetesting.SetFeatureGateDuringTest(b, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, false)()
-
-	client, closeFn := setup(b)
-	defer closeFn()
-	flag.Lookup("v").Value.Set("0")
-
-	benchAll(b, client, decodePod(podBytes))
-}
-
-func getPodSizeWhenEnabled(b *testing.B, pod v1.Pod) int {
-	return len(getPodBytesWhenEnabled(b, pod, "application/vnd.kubernetes.protobuf"))
-}
-
 func getPodBytesWhenEnabled(b *testing.B, pod v1.Pod, format string) []byte {
-	defer featuregatetesting.SetFeatureGateDuringTest(b, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	client, closeFn := setup(b)
 	defer closeFn()
 	flag.Lookup("v").Value.Set("0")
@@ -2682,48 +2602,9 @@ func getPodBytesWhenEnabled(b *testing.B, pod v1.Pod, format string) []byte {
 	return podB
 }
 
-func BenchmarkNoServerSideApplyButSameSize(b *testing.B) {
-	pod := decodePod(podBytes)
-
-	ssaPodSize := getPodSizeWhenEnabled(b, pod)
-
-	defer featuregatetesting.SetFeatureGateDuringTest(b, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, false)()
-	client, closeFn := setup(b)
-	defer closeFn()
-	flag.Lookup("v").Value.Set("0")
-
-	pod.Name = "size-pod"
-	noSSAPod, err := client.CoreV1().RESTClient().Post().
-		Namespace("default").
-		Resource("pods").
-		SetHeader("Content-Type", "application/yaml").
-		SetHeader("Accept", "application/vnd.kubernetes.protobuf").
-		Body(encodePod(pod)).DoRaw(context.TODO())
-	if err != nil {
-		b.Fatalf("Failed to create object: %v", err)
-	}
-
-	ssaDiff := ssaPodSize - len(noSSAPod)
-	fmt.Printf("Without SSA: %v bytes, With SSA: %v bytes, Difference: %v bytes\n", len(noSSAPod), ssaPodSize, ssaDiff)
-	annotations := pod.GetAnnotations()
-	builder := strings.Builder{}
-	for i := 0; i < ssaDiff; i++ {
-		builder.WriteByte('0')
-	}
-	if annotations == nil {
-		annotations = map[string]string{}
-	}
-	annotations["x-ssa-difference"] = builder.String()
-	pod.SetAnnotations(annotations)
-
-	benchAll(b, client, pod)
-}
-
 func BenchmarkServerSideApply(b *testing.B) {
 	podBytesWhenEnabled := getPodBytesWhenEnabled(b, decodePod(podBytes), "application/yaml")
 
-	defer featuregatetesting.SetFeatureGateDuringTest(b, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	client, closeFn := setup(b)
 	defer closeFn()
 	flag.Lookup("v").Value.Set("0")
@@ -2858,8 +2739,6 @@ func benchRepeatedUpdate(client clientset.Interface, podName string) func(*testi
 }
 
 func TestUpgradeClientSideToServerSideApply(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	client, closeFn := setup(t)
 	defer closeFn()
 
@@ -2987,108 +2866,7 @@ spec:
 	}
 }
 
-func TestStopTrackingManagedFieldsOnFeatureDisabled(t *testing.T) {
-	sharedEtcd := framework.SharedEtcd()
-
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
-	// Disable ServiceAccount admission plugin as we don't have serviceaccount controller running.
-	server := kubeapiservertesting.StartTestServerOrDie(t, nil, []string{"--disable-admission-plugins=ServiceAccount"}, sharedEtcd)
-	client, err := clientset.NewForConfig(server.ClientConfig)
-	if err != nil {
-		t.Fatalf("Error in create clientset: %v", err)
-	}
-
-	obj := []byte(`
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: my-deployment
-spec:
-  selector:
-    matchLabels:
-      app: my-app
-  template:
-    metadata:
-      labels:
-        app: my-app
-    spec:
-      containers:
-      - name: my-c
-        image: my-image
-`)
-
-	deployment, err := yamlutil.ToJSON(obj)
-	if err != nil {
-		t.Fatalf("Failed marshal yaml: %v", err)
-	}
-	_, err = client.CoreV1().RESTClient().Patch(types.ApplyPatchType).
-		AbsPath("/apis/apps/v1").
-		Namespace("default").
-		Resource("deployments").
-		Name("my-deployment").
-		Param("fieldManager", "kubectl").
-		Body(deployment).
-		Do(context.TODO()).
-		Get()
-	if err != nil {
-		t.Fatalf("Failed to apply object: %v", err)
-	}
-
-	deploymentObj, err := client.AppsV1().Deployments("default").Get(context.TODO(), "my-deployment", metav1.GetOptions{})
-	if err != nil {
-		t.Fatalf("Failed to get object: %v", err)
-	}
-	if managed := deploymentObj.GetManagedFields(); managed == nil {
-		t.Errorf("object doesn't have managedFields")
-	}
-
-	// Restart server with server-side apply disabled
-	server.TearDownFn()
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, false)()
-
-	server = kubeapiservertesting.StartTestServerOrDie(t, nil, []string{"--disable-admission-plugins=ServiceAccount"}, sharedEtcd)
-	defer server.TearDownFn()
-	client, err = clientset.NewForConfig(server.ClientConfig)
-	if err != nil {
-		t.Fatalf("Error in create clientset: %v", err)
-	}
-
-	_, err = client.CoreV1().RESTClient().Patch(types.ApplyPatchType).
-		AbsPath("/apis/apps/v1").
-		Namespace("default").
-		Resource("deployments").
-		Name("my-deployment").
-		Param("fieldManager", "kubectl").
-		Body(deployment).
-		Do(context.TODO()).
-		Get()
-	if err == nil {
-		t.Errorf("expected to fail to apply object, but succeeded")
-	}
-
-	_, err = client.CoreV1().RESTClient().Patch(types.MergePatchType).
-		AbsPath("/apis/apps/v1").
-		Namespace("default").
-		Resource("deployments").
-		Name("my-deployment").
-		Body([]byte(`{"metadata":{"labels": { "app": "v1" }}}`)).Do(context.TODO()).Get()
-	if err != nil {
-		t.Errorf("failed to update object: %v", err)
-	}
-
-	deploymentObj, err = client.AppsV1().Deployments("default").Get(context.TODO(), "my-deployment", metav1.GetOptions{})
-	if err != nil {
-		t.Fatalf("Failed to get object: %v", err)
-	}
-	if managed := deploymentObj.GetManagedFields(); managed != nil {
-		t.Errorf("object has unexpected managedFields: %v", managed)
-	}
-}
-
 func TestRenamingAppliedFieldManagers(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	client, closeFn := setup(t)
 	defer closeFn()
 
@@ -3179,8 +2957,6 @@ func TestRenamingAppliedFieldManagers(t *testing.T) {
 }
 
 func TestRenamingUpdatedFieldManagers(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	client, closeFn := setup(t)
 	defer closeFn()
 
@@ -3281,8 +3057,6 @@ func TestRenamingUpdatedFieldManagers(t *testing.T) {
 }
 
 func TestDroppingSubresourceField(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	client, closeFn := setup(t)
 	defer closeFn()
 
@@ -3394,8 +3168,6 @@ func TestDroppingSubresourceField(t *testing.T) {
 }
 
 func TestDroppingSubresourceFromSpecField(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	client, closeFn := setup(t)
 	defer closeFn()
 
@@ -3508,8 +3280,6 @@ func TestDroppingSubresourceFromSpecField(t *testing.T) {
 }
 
 func TestSubresourceField(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	client, closeFn := setup(t)
 	defer closeFn()
 
@@ -3599,8 +3369,6 @@ func TestSubresourceField(t *testing.T) {
 // do not experience any friction when updating to a version of k8s which marks
 // the fields' management again as granular.
 func TestApplyFormerlyAtomicFields(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	// Start server with our populated ObjectReference. Since it is atomic its
 	// ownership changed when XX popualted the UID after the user specified the
 	// GVKN.

test/integration/apiserver/apply/reset_fields_test.go

@@ -30,7 +30,6 @@ import (
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
 	"k8s.io/apimachinery/pkg/runtime/schema"
-	genericfeatures "k8s.io/apiserver/pkg/features"
 	utilfeature "k8s.io/apiserver/pkg/util/feature"
 	"k8s.io/client-go/dynamic"
 	"k8s.io/client-go/kubernetes"
@@ -38,7 +37,6 @@ import (
 	apiservertesting "k8s.io/kubernetes/cmd/kube-apiserver/app/testing"
 	k8sfeatures "k8s.io/kubernetes/pkg/features"
 
-	//k8sfeatures "k8s.io/kubernetes/pkg/features"
 	"k8s.io/kubernetes/test/integration/etcd"
 	"k8s.io/kubernetes/test/integration/framework"
 	"k8s.io/kubernetes/test/utils/image"
@@ -153,7 +151,6 @@ var resetFieldsSpecData = map[schema.GroupVersionResource]string{
 // confirms that the fieldmanager1 is wiped of the status and fieldmanager2 is wiped of the spec.
 // We then attempt to apply obj2 to the spec endpoint which fails with an expected conflict.
 func TestApplyResetFields(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
 	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, k8sfeatures.NetworkPolicyStatus, true)()
 
 	server, err := apiservertesting.StartTestServer(t, apiservertesting.NewDefaultTestServerOptions(), []string{"--disable-admission-plugins", "ServiceAccount,TaintNodesByCondition"}, framework.SharedEtcd())

test/integration/apiserver/apply/scale_test.go

@@ -30,11 +30,8 @@ import (
 	"k8s.io/apimachinery/pkg/runtime/schema"
 	"k8s.io/apimachinery/pkg/types"
 	"k8s.io/apiserver/pkg/endpoints/handlers/fieldmanager"
-	genericfeatures "k8s.io/apiserver/pkg/features"
-	utilfeature "k8s.io/apiserver/pkg/util/feature"
 	clientset "k8s.io/client-go/kubernetes"
 	"k8s.io/client-go/kubernetes/scheme"
-	featuregatetesting "k8s.io/component-base/featuregate/testing"
 	deploymentstorage "k8s.io/kubernetes/pkg/registry/apps/deployment/storage"
 	replicasetstorage "k8s.io/kubernetes/pkg/registry/apps/replicaset/storage"
 	statefulsetstorage "k8s.io/kubernetes/pkg/registry/apps/statefulset/storage"
@@ -49,8 +46,6 @@ type scaleTest struct {
 }
 
 func TestScaleAllResources(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	client, closeFn := setup(t)
 	defer closeFn()
 
@@ -239,8 +234,6 @@ func TestScaleAllResources(t *testing.T) {
 }
 
 func TestScaleUpdateOnlyStatus(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	client, closeFn := setup(t)
 	defer closeFn()
 

test/integration/apiserver/apply/status_test.go

@@ -28,11 +28,8 @@ import (
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
 	"k8s.io/apimachinery/pkg/runtime/schema"
-	genericfeatures "k8s.io/apiserver/pkg/features"
-	utilfeature "k8s.io/apiserver/pkg/util/feature"
 	"k8s.io/client-go/dynamic"
 	"k8s.io/client-go/kubernetes"
-	featuregatetesting "k8s.io/component-base/featuregate/testing"
 	apiservertesting "k8s.io/kubernetes/cmd/kube-apiserver/app/testing"
 	"k8s.io/kubernetes/test/integration/etcd"
 	"k8s.io/kubernetes/test/integration/framework"
@@ -92,7 +89,6 @@ func createMapping(groupVersion string, resource metav1.APIResource) (*meta.REST
 
 // TestApplyStatus makes sure that applying the status works for all known types.
 func TestApplyStatus(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
 	server, err := apiservertesting.StartTestServer(t, apiservertesting.NewDefaultTestServerOptions(), []string{"--disable-admission-plugins", "ServiceAccount,TaintNodesByCondition"}, framework.SharedEtcd())
 	if err != nil {
 		t.Fatal(err)

test/integration/auth/rbac_test.go

@@ -40,14 +40,11 @@ import (
 	"k8s.io/apiserver/pkg/authentication/user"
 	"k8s.io/apiserver/pkg/authorization/authorizer"
 	unionauthz "k8s.io/apiserver/pkg/authorization/union"
-	genericfeatures "k8s.io/apiserver/pkg/features"
 	"k8s.io/apiserver/pkg/registry/generic"
-	utilfeature "k8s.io/apiserver/pkg/util/feature"
 	clientset "k8s.io/client-go/kubernetes"
 	restclient "k8s.io/client-go/rest"
 	watchtools "k8s.io/client-go/tools/watch"
 	"k8s.io/client-go/transport"
-	featuregatetesting "k8s.io/component-base/featuregate/testing"
 	"k8s.io/klog/v2"
 	"k8s.io/kubernetes/cmd/kube-apiserver/app/options"
 	rbachelper "k8s.io/kubernetes/pkg/apis/rbac/v1"
@@ -302,8 +299,6 @@ var (
 )
 
 func TestRBAC(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.ServerSideApply, true)()
-
 	superUser := "admin/system:masters"
 
 	tests := []struct {