Remove Initializers

pkg/features/kube_features.go

@@ -308,7 +308,6 @@ var defaultKubernetesFeatureGates = map[utilfeature.Feature]utilfeature.FeatureS
 	genericfeatures.StreamingProxyRedirects: {Default: true, PreRelease: utilfeature.Beta},
 	genericfeatures.AdvancedAuditing:        {Default: true, PreRelease: utilfeature.GA},
 	genericfeatures.DynamicAuditing:         {Default: false, PreRelease: utilfeature.Alpha},
-	genericfeatures.Initializers:            {Default: false, PreRelease: utilfeature.Alpha},
 	genericfeatures.APIListChunking:         {Default: true, PreRelease: utilfeature.Beta},
 	genericfeatures.DryRun:                  {Default: true, PreRelease: utilfeature.Beta},
 

pkg/quota/v1/evaluator/core/persistent_volume_claims.go

@@ -27,7 +27,6 @@ import (
 	"k8s.io/apimachinery/pkg/util/initialization"
 	utilruntime "k8s.io/apimachinery/pkg/util/runtime"
 	"k8s.io/apiserver/pkg/admission"
-	"k8s.io/apiserver/pkg/features"
 	utilfeature "k8s.io/apiserver/pkg/util/feature"
 	api "k8s.io/kubernetes/pkg/apis/core"
 	k8s_api_v1 "k8s.io/kubernetes/pkg/apis/core/v1"
@@ -173,12 +172,6 @@ func (p *pvcEvaluator) Usage(item runtime.Object) (corev1.ResourceList, error) {
 	// charge for claim
 	result[corev1.ResourcePersistentVolumeClaims] = *(resource.NewQuantity(1, resource.DecimalSI))
 	result[pvcObjectCountName] = *(resource.NewQuantity(1, resource.DecimalSI))
-	if utilfeature.DefaultFeatureGate.Enabled(features.Initializers) {
-		if !initialization.IsInitialized(pvc.Initializers) {
-			// Only charge pvc count for uninitialized pvc.
-			return result, nil
-		}
-	}
 	storageClassRef := helper.GetPersistentVolumeClaimClass(pvc)
 	if len(storageClassRef) > 0 {
 		storageClassClaim := corev1.ResourceName(storageClassRef + storageClassSuffix + string(corev1.ResourcePersistentVolumeClaims))

pkg/registry/core/pod/strategy.go

@@ -27,7 +27,6 @@ import (
 	"time"
 
 	"k8s.io/apimachinery/pkg/api/errors"
-	"k8s.io/apimachinery/pkg/api/meta"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	apimachineryvalidation "k8s.io/apimachinery/pkg/apis/meta/v1/validation"
 	"k8s.io/apimachinery/pkg/fields"
@@ -36,11 +35,9 @@ import (
 	"k8s.io/apimachinery/pkg/types"
 	utilnet "k8s.io/apimachinery/pkg/util/net"
 	"k8s.io/apimachinery/pkg/util/validation/field"
-	"k8s.io/apiserver/pkg/features"
 	"k8s.io/apiserver/pkg/registry/generic"
 	"k8s.io/apiserver/pkg/storage"
 	"k8s.io/apiserver/pkg/storage/names"
-	utilfeature "k8s.io/apiserver/pkg/util/feature"
 	"k8s.io/kubernetes/pkg/api/legacyscheme"
 	podutil "k8s.io/kubernetes/pkg/api/pod"
 	api "k8s.io/kubernetes/pkg/apis/core"
@@ -102,17 +99,6 @@ func (podStrategy) AllowCreateOnUpdate() bool {
 }
 
 func isUpdatingUninitializedPod(old runtime.Object) (bool, error) {
-	if !utilfeature.DefaultFeatureGate.Enabled(features.Initializers) {
-		return false, nil
-	}
-	oldMeta, err := meta.Accessor(old)
-	if err != nil {
-		return false, err
-	}
-	oldInitializers := oldMeta.GetInitializers()
-	if oldInitializers != nil && len(oldInitializers.Pending) != 0 {
-		return true, nil
-	}
 	return false, nil
 }
 

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

@@ -60,13 +60,6 @@ const (
 	DynamicAuditing utilfeature.Feature = "DynamicAuditing"
 
 	// owner: @smarterclayton
-	// alpha: v1.7
-	//
-	// Allow asynchronous coordination of object creation.
-	// Auto-enabled by the Initializers admission plugin.
-	Initializers utilfeature.Feature = "Initializers"
-
-	// owner: @smarterclayton
 	// alpha: v1.8
 	// beta: v1.9
 	//
@@ -96,7 +89,6 @@ var defaultKubernetesFeatureGates = map[utilfeature.Feature]utilfeature.FeatureS
 	ValidateProxyRedirects:  {Default: false, PreRelease: utilfeature.Alpha},
 	AdvancedAuditing:        {Default: true, PreRelease: utilfeature.GA},
 	DynamicAuditing:         {Default: false, PreRelease: utilfeature.Alpha},
-	Initializers:            {Default: false, PreRelease: utilfeature.Alpha},
 	APIListChunking:         {Default: true, PreRelease: utilfeature.Beta},
 	DryRun:                  {Default: true, PreRelease: utilfeature.Beta},
 }

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

@@ -28,9 +28,7 @@ import (
 	"k8s.io/apimachinery/pkg/runtime/schema"
 	"k8s.io/apimachinery/pkg/util/validation/field"
 	"k8s.io/apiserver/pkg/admission"
-	"k8s.io/apiserver/pkg/features"
 	"k8s.io/apiserver/pkg/storage/names"
-	utilfeature "k8s.io/apiserver/pkg/util/feature"
 )
 
 // RESTCreateStrategy defines the minimum validation, accepted input, and
@@ -93,9 +91,7 @@ func BeforeCreate(strategy RESTCreateStrategy, ctx context.Context, obj runtime.
 	}
 
 	// Ensure Initializers are not set unless the feature is enabled
-	if !utilfeature.DefaultFeatureGate.Enabled(features.Initializers) {
 	objectMeta.SetInitializers(nil)
-	}
 
 	// ClusterName is ignored and should not be saved
 	if len(objectMeta.GetClusterName()) > 0 {

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

@@ -28,8 +28,6 @@ import (
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apimachinery/pkg/util/validation/field"
 	"k8s.io/apiserver/pkg/admission"
-	"k8s.io/apiserver/pkg/features"
-	utilfeature "k8s.io/apiserver/pkg/util/feature"
 )
 
 // RESTUpdateStrategy defines the minimum validation, accepted input, and
@@ -105,10 +103,8 @@ func BeforeUpdate(strategy RESTUpdateStrategy, ctx context.Context, obj, old run
 	objectMeta.SetGeneration(oldMeta.GetGeneration())
 
 	// Ensure Initializers are not set unless the feature is enabled
-	if !utilfeature.DefaultFeatureGate.Enabled(features.Initializers) {
 	oldMeta.SetInitializers(nil)
 	objectMeta.SetInitializers(nil)
-	}
 
 	strategy.PrepareForUpdate(ctx, obj, old)