Drop DefaultGarbageCollectionPolicy checks for legacy apps REST API versions

pkg/registry/apps/daemonset/strategy.go

@@ -19,7 +19,6 @@ package daemonset
 import (
 	"context"
 
-	appsv1beta2 "k8s.io/api/apps/v1beta2"
 	extensionsv1beta1 "k8s.io/api/extensions/v1beta1"
 	apiequality "k8s.io/apimachinery/pkg/api/equality"
 	apivalidation "k8s.io/apimachinery/pkg/api/validation"
@@ -48,20 +47,12 @@ type daemonSetStrategy struct {
 // Strategy is the default logic that applies when creating and updating DaemonSet objects.
 var Strategy = daemonSetStrategy{legacyscheme.Scheme, names.SimpleNameGenerator}
 
-// DefaultGarbageCollectionPolicy returns OrphanDependents for extensions/v1beta1 and apps/v1beta2 for backwards compatibility,
+// Make sure we correctly implement the interface.
-// and DeleteDependents for all other versions.
+var _ = rest.GarbageCollectionDeleteStrategy(Strategy)
+
+// DefaultGarbageCollectionPolicy returns DeleteDependents for all currently served versions.
 func (daemonSetStrategy) DefaultGarbageCollectionPolicy(ctx context.Context) rest.GarbageCollectionPolicy {
-	var groupVersion schema.GroupVersion
+	return rest.DeleteDependents
-	if requestInfo, found := genericapirequest.RequestInfoFrom(ctx); found {
-		groupVersion = schema.GroupVersion{Group: requestInfo.APIGroup, Version: requestInfo.APIVersion}
-	}
-	switch groupVersion {
-	case extensionsv1beta1.SchemeGroupVersion, appsv1beta2.SchemeGroupVersion:
-		// for back compatibility
-		return rest.OrphanDependents
-	default:
-		return rest.DeleteDependents
-	}
 }
 
 // NamespaceScoped returns true because all DaemonSets need to be within a namespace.

pkg/registry/apps/daemonset/strategy_test.go

@@ -25,7 +25,6 @@ import (
 	"k8s.io/apimachinery/pkg/util/intstr"
 	"k8s.io/apimachinery/pkg/util/validation/field"
 	genericapirequest "k8s.io/apiserver/pkg/endpoints/request"
-	"k8s.io/apiserver/pkg/registry/rest"
 	utilfeature "k8s.io/apiserver/pkg/util/feature"
 	featuregatetesting "k8s.io/component-base/featuregate/testing"
 	"k8s.io/kubernetes/pkg/apis/apps"
@@ -40,60 +39,6 @@ const (
 	namespace     = "test-namespace"
 )
 
-func TestDaemonsetDefaultGarbageCollectionPolicy(t *testing.T) {
-	// Make sure we correctly implement the interface.
-	// Otherwise a typo could silently change the default.
-	var gcds rest.GarbageCollectionDeleteStrategy = Strategy
-	tests := []struct {
-		requestInfo      genericapirequest.RequestInfo
-		expectedGCPolicy rest.GarbageCollectionPolicy
-		isNilRequestInfo bool
-	}{
-		{
-			genericapirequest.RequestInfo{
-				APIGroup:   "extensions",
-				APIVersion: "v1beta1",
-				Resource:   "daemonsets",
-			},
-			rest.OrphanDependents,
-			false,
-		},
-		{
-			genericapirequest.RequestInfo{
-				APIGroup:   "apps",
-				APIVersion: "v1beta2",
-				Resource:   "daemonsets",
-			},
-			rest.OrphanDependents,
-			false,
-		},
-		{
-			genericapirequest.RequestInfo{
-				APIGroup:   "apps",
-				APIVersion: "v1",
-				Resource:   "daemonsets",
-			},
-			rest.DeleteDependents,
-			false,
-		},
-		{
-			expectedGCPolicy: rest.DeleteDependents,
-			isNilRequestInfo: true,
-		},
-	}
-
-	for _, test := range tests {
-		context := genericapirequest.NewContext()
-		if !test.isNilRequestInfo {
-			context = genericapirequest.WithRequestInfo(context, &test.requestInfo)
-		}
-		if got, want := gcds.DefaultGarbageCollectionPolicy(context), test.expectedGCPolicy; got != want {
-			t.Errorf("%s/%s: DefaultGarbageCollectionPolicy() = %#v, want %#v", test.requestInfo.APIGroup,
-				test.requestInfo.APIVersion, got, want)
-		}
-	}
-}
-
 func TestSelectorImmutability(t *testing.T) {
 	tests := []struct {
 		requestInfo       genericapirequest.RequestInfo

pkg/registry/apps/deployment/strategy.go

@@ -20,7 +20,6 @@ import (
 	"context"
 
 	appsv1beta1 "k8s.io/api/apps/v1beta1"
-	appsv1beta2 "k8s.io/api/apps/v1beta2"
 	extensionsv1beta1 "k8s.io/api/extensions/v1beta1"
 	apiequality "k8s.io/apimachinery/pkg/api/equality"
 	apivalidation "k8s.io/apimachinery/pkg/api/validation"
@@ -47,20 +46,12 @@ type deploymentStrategy struct {
 // objects via the REST API.
 var Strategy = deploymentStrategy{legacyscheme.Scheme, names.SimpleNameGenerator}
 
-// DefaultGarbageCollectionPolicy returns OrphanDependents for extensions/v1beta1, apps/v1beta1, and apps/v1beta2 for backwards compatibility,
+// Make sure we correctly implement the interface.
-// and DeleteDependents for all other versions.
+var _ = rest.GarbageCollectionDeleteStrategy(Strategy)
+
+// DefaultGarbageCollectionPolicy returns DeleteDependents for all currently served versions.
 func (deploymentStrategy) DefaultGarbageCollectionPolicy(ctx context.Context) rest.GarbageCollectionPolicy {
-	var groupVersion schema.GroupVersion
+	return rest.DeleteDependents
-	if requestInfo, found := genericapirequest.RequestInfoFrom(ctx); found {
-		groupVersion = schema.GroupVersion{Group: requestInfo.APIGroup, Version: requestInfo.APIVersion}
-	}
-	switch groupVersion {
-	case extensionsv1beta1.SchemeGroupVersion, appsv1beta1.SchemeGroupVersion, appsv1beta2.SchemeGroupVersion:
-		// for back compatibility
-		return rest.OrphanDependents
-	default:
-		return rest.DeleteDependents
-	}
 }
 
 // NamespaceScoped is true for deployment.

pkg/registry/apps/deployment/strategy_test.go

@@ -26,7 +26,6 @@ import (
 	"k8s.io/apimachinery/pkg/util/intstr"
 	"k8s.io/apimachinery/pkg/util/validation/field"
 	genericapirequest "k8s.io/apiserver/pkg/endpoints/request"
-	"k8s.io/apiserver/pkg/registry/rest"
 	"k8s.io/kubernetes/pkg/apis/apps"
 	api "k8s.io/kubernetes/pkg/apis/core"
 )
@@ -186,69 +185,6 @@ func newDeploymentWithSelectorLabels(selectorLabels map[string]string) *apps.Dep
 	}
 }
 
-func TestDeploymentDefaultGarbageCollectionPolicy(t *testing.T) {
-	// Make sure we correctly implement the interface.
-	// Otherwise a typo could silently change the default.
-	var gcds rest.GarbageCollectionDeleteStrategy = Strategy
-	tests := []struct {
-		requestInfo      genericapirequest.RequestInfo
-		expectedGCPolicy rest.GarbageCollectionPolicy
-		isNilRequestInfo bool
-	}{
-		{
-			genericapirequest.RequestInfo{
-				APIGroup:   "extensions",
-				APIVersion: "v1beta1",
-				Resource:   "deployments",
-			},
-			rest.OrphanDependents,
-			false,
-		},
-		{
-			genericapirequest.RequestInfo{
-				APIGroup:   "apps",
-				APIVersion: "v1beta1",
-				Resource:   "deployments",
-			},
-			rest.OrphanDependents,
-			false,
-		},
-		{
-			genericapirequest.RequestInfo{
-				APIGroup:   "apps",
-				APIVersion: "v1beta2",
-				Resource:   "deployments",
-			},
-			rest.OrphanDependents,
-			false,
-		},
-		{
-			genericapirequest.RequestInfo{
-				APIGroup:   "apps",
-				APIVersion: "v1",
-				Resource:   "deployments",
-			},
-			rest.DeleteDependents,
-			false,
-		},
-		{
-			expectedGCPolicy: rest.DeleteDependents,
-			isNilRequestInfo: true,
-		},
-	}
-
-	for _, test := range tests {
-		context := genericapirequest.NewContext()
-		if !test.isNilRequestInfo {
-			context = genericapirequest.WithRequestInfo(context, &test.requestInfo)
-		}
-		if got, want := gcds.DefaultGarbageCollectionPolicy(context), test.expectedGCPolicy; got != want {
-			t.Errorf("%s/%s: DefaultGarbageCollectionPolicy() = %#v, want %#v", test.requestInfo.APIGroup,
-				test.requestInfo.APIVersion, got, want)
-		}
-	}
-}
-
 func newDeploymentWithHugePageValue(reousreceName api.ResourceName, value resource.Quantity) *apps.Deployment {
 	return &apps.Deployment{
 		ObjectMeta: metav1.ObjectMeta{

pkg/registry/apps/replicaset/strategy.go

@@ -23,7 +23,6 @@ import (
 	"fmt"
 	"strconv"
 
-	appsv1beta2 "k8s.io/api/apps/v1beta2"
 	extensionsv1beta1 "k8s.io/api/extensions/v1beta1"
 	apiequality "k8s.io/apimachinery/pkg/api/equality"
 	apivalidation "k8s.io/apimachinery/pkg/api/validation"
@@ -53,20 +52,12 @@ type rsStrategy struct {
 // Strategy is the default logic that applies when creating and updating ReplicaSet objects.
 var Strategy = rsStrategy{legacyscheme.Scheme, names.SimpleNameGenerator}
 
-// DefaultGarbageCollectionPolicy returns OrphanDependents for extensions/v1beta1 and apps/v1beta2 for backwards compatibility,
+// Make sure we correctly implement the interface.
-// and DeleteDependents for all other versions.
+var _ = rest.GarbageCollectionDeleteStrategy(Strategy)
+
+// DefaultGarbageCollectionPolicy returns DeleteDependents for all currently served versions.
 func (rsStrategy) DefaultGarbageCollectionPolicy(ctx context.Context) rest.GarbageCollectionPolicy {
-	var groupVersion schema.GroupVersion
+	return rest.DeleteDependents
-	if requestInfo, found := genericapirequest.RequestInfoFrom(ctx); found {
-		groupVersion = schema.GroupVersion{Group: requestInfo.APIGroup, Version: requestInfo.APIVersion}
-	}
-	switch groupVersion {
-	case extensionsv1beta1.SchemeGroupVersion, appsv1beta2.SchemeGroupVersion:
-		// for back compatibility
-		return rest.OrphanDependents
-	default:
-		return rest.DeleteDependents
-	}
 }
 
 // NamespaceScoped returns true because all ReplicaSets need to be within a namespace.

pkg/registry/apps/replicaset/strategy_test.go

@@ -23,7 +23,6 @@ import (
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/util/validation/field"
 	genericapirequest "k8s.io/apiserver/pkg/endpoints/request"
-	"k8s.io/apiserver/pkg/registry/rest"
 	"k8s.io/kubernetes/pkg/apis/apps"
 	api "k8s.io/kubernetes/pkg/apis/core"
 )
@@ -228,57 +227,3 @@ func newReplicaSetWithSelectorLabels(selectorLabels map[string]string) *apps.Rep
 		},
 	}
 }
-
-func TestReplicasetDefaultGarbageCollectionPolicy(t *testing.T) {
-	// Make sure we correctly implement the interface.
-	// Otherwise a typo could silently change the default.
-	var gcds rest.GarbageCollectionDeleteStrategy = Strategy
-	tests := []struct {
-		requestInfo      genericapirequest.RequestInfo
-		expectedGCPolicy rest.GarbageCollectionPolicy
-		isNilRequestInfo bool
-	}{
-		{
-			genericapirequest.RequestInfo{
-				APIGroup:   "extensions",
-				APIVersion: "v1beta1",
-				Resource:   "replicasets",
-			},
-			rest.OrphanDependents,
-			false,
-		},
-		{
-			genericapirequest.RequestInfo{
-				APIGroup:   "apps",
-				APIVersion: "v1beta2",
-				Resource:   "replicasets",
-			},
-			rest.OrphanDependents,
-			false,
-		},
-		{
-			genericapirequest.RequestInfo{
-				APIGroup:   "apps",
-				APIVersion: "v1",
-				Resource:   "replicasets",
-			},
-			rest.DeleteDependents,
-			false,
-		},
-		{
-			expectedGCPolicy: rest.DeleteDependents,
-			isNilRequestInfo: true,
-		},
-	}
-
-	for _, test := range tests {
-		context := genericapirequest.NewContext()
-		if !test.isNilRequestInfo {
-			context = genericapirequest.WithRequestInfo(context, &test.requestInfo)
-		}
-		if got, want := gcds.DefaultGarbageCollectionPolicy(context), test.expectedGCPolicy; got != want {
-			t.Errorf("%s/%s: DefaultGarbageCollectionPolicy() = %#v, want %#v", test.requestInfo.APIGroup,
-				test.requestInfo.APIVersion, got, want)
-		}
-	}
-}

pkg/registry/apps/statefulset/strategy.go

@@ -21,13 +21,9 @@ import (
 	utilfeature "k8s.io/apiserver/pkg/util/feature"
 	"k8s.io/kubernetes/pkg/features"
 
-	appsv1beta1 "k8s.io/api/apps/v1beta1"
-	appsv1beta2 "k8s.io/api/apps/v1beta2"
 	apiequality "k8s.io/apimachinery/pkg/api/equality"
 	"k8s.io/apimachinery/pkg/runtime"
-	"k8s.io/apimachinery/pkg/runtime/schema"
 	"k8s.io/apimachinery/pkg/util/validation/field"
-	genericapirequest "k8s.io/apiserver/pkg/endpoints/request"
 	"k8s.io/apiserver/pkg/registry/rest"
 	"k8s.io/apiserver/pkg/storage/names"
 	"k8s.io/kubernetes/pkg/api/legacyscheme"
@@ -46,20 +42,12 @@ type statefulSetStrategy struct {
 // Strategy is the default logic that applies when creating and updating Replication StatefulSet objects.
 var Strategy = statefulSetStrategy{legacyscheme.Scheme, names.SimpleNameGenerator}
 
-// DefaultGarbageCollectionPolicy returns OrphanDependents for apps/v1beta1 and apps/v1beta2 for backwards compatibility,
+// Make sure we correctly implement the interface.
-// and DeleteDependents for all other versions.
+var _ = rest.GarbageCollectionDeleteStrategy(Strategy)
+
+// DefaultGarbageCollectionPolicy returns DeleteDependents for all currently served versions.
 func (statefulSetStrategy) DefaultGarbageCollectionPolicy(ctx context.Context) rest.GarbageCollectionPolicy {
-	var groupVersion schema.GroupVersion
+	return rest.DeleteDependents
-	if requestInfo, found := genericapirequest.RequestInfoFrom(ctx); found {
-		groupVersion = schema.GroupVersion{Group: requestInfo.APIGroup, Version: requestInfo.APIVersion}
-	}
-	switch groupVersion {
-	case appsv1beta1.SchemeGroupVersion, appsv1beta2.SchemeGroupVersion:
-		// for back compatibility
-		return rest.OrphanDependents
-	default:
-		return rest.DeleteDependents
-	}
 }
 
 // NamespaceScoped returns true because all StatefulSet' need to be within a namespace.

pkg/registry/apps/statefulset/strategy_test.go

@@ -23,7 +23,6 @@ import (
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/util/diff"
 	genericapirequest "k8s.io/apiserver/pkg/endpoints/request"
-	"k8s.io/apiserver/pkg/registry/rest"
 	utilfeature "k8s.io/apiserver/pkg/util/feature"
 	featuregatetesting "k8s.io/component-base/featuregate/testing"
 	"k8s.io/kubernetes/pkg/apis/apps"
@@ -194,60 +193,6 @@ func TestStatefulSetStrategy(t *testing.T) {
 	}
 }
 
-func TestStatefulsetDefaultGarbageCollectionPolicy(t *testing.T) {
-	// Make sure we correctly implement the interface.
-	// Otherwise a typo could silently change the default.
-	var gcds rest.GarbageCollectionDeleteStrategy = Strategy
-	tests := []struct {
-		requestInfo      genericapirequest.RequestInfo
-		expectedGCPolicy rest.GarbageCollectionPolicy
-		isNilRequestInfo bool
-	}{
-		{
-			genericapirequest.RequestInfo{
-				APIGroup:   "apps",
-				APIVersion: "v1beta1",
-				Resource:   "statefulsets",
-			},
-			rest.OrphanDependents,
-			false,
-		},
-		{
-			genericapirequest.RequestInfo{
-				APIGroup:   "apps",
-				APIVersion: "v1beta2",
-				Resource:   "statefulsets",
-			},
-			rest.OrphanDependents,
-			false,
-		},
-		{
-			genericapirequest.RequestInfo{
-				APIGroup:   "apps",
-				APIVersion: "v1",
-				Resource:   "statefulsets",
-			},
-			rest.DeleteDependents,
-			false,
-		},
-		{
-			expectedGCPolicy: rest.DeleteDependents,
-			isNilRequestInfo: true,
-		},
-	}
-
-	for _, test := range tests {
-		context := genericapirequest.NewContext()
-		if !test.isNilRequestInfo {
-			context = genericapirequest.WithRequestInfo(context, &test.requestInfo)
-		}
-		if got, want := gcds.DefaultGarbageCollectionPolicy(context), test.expectedGCPolicy; got != want {
-			t.Errorf("%s/%s: DefaultGarbageCollectionPolicy() = %#v, want %#v", test.requestInfo.APIGroup,
-				test.requestInfo.APIVersion, got, want)
-		}
-	}
-}
-
 func TestStatefulSetStatusStrategy(t *testing.T) {
 	ctx := genericapirequest.NewDefaultContext()
 	if !StatusStrategy.NamespaceScoped() {