vendor files

vendor/k8s.io/kubernetes/pkg/registry/policy/OWNERS

@@ -0,0 +1,3 @@
+reviewers:
+- deads2k
+- hongchaodeng

vendor/k8s.io/kubernetes/pkg/registry/policy/poddisruptionbudget/BUILD

@@ -0,0 +1,55 @@
+package(default_visibility = ["//visibility:public"])
+
+load(
+    "@io_bazel_rules_go//go:def.bzl",
+    "go_library",
+    "go_test",
+)
+
+go_library(
+    name = "go_default_library",
+    srcs = [
+        "doc.go",
+        "strategy.go",
+    ],
+    importpath = "k8s.io/kubernetes/pkg/registry/policy/poddisruptionbudget",
+    deps = [
+        "//pkg/api/legacyscheme:go_default_library",
+        "//pkg/apis/policy:go_default_library",
+        "//pkg/apis/policy/validation:go_default_library",
+        "//vendor/k8s.io/apimachinery/pkg/api/equality:go_default_library",
+        "//vendor/k8s.io/apimachinery/pkg/runtime:go_default_library",
+        "//vendor/k8s.io/apimachinery/pkg/util/validation/field:go_default_library",
+        "//vendor/k8s.io/apiserver/pkg/endpoints/request:go_default_library",
+        "//vendor/k8s.io/apiserver/pkg/storage/names:go_default_library",
+    ],
+)
+
+go_test(
+    name = "go_default_test",
+    srcs = ["strategy_test.go"],
+    importpath = "k8s.io/kubernetes/pkg/registry/policy/poddisruptionbudget",
+    library = ":go_default_library",
+    deps = [
+        "//pkg/apis/policy:go_default_library",
+        "//vendor/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
+        "//vendor/k8s.io/apimachinery/pkg/util/intstr:go_default_library",
+        "//vendor/k8s.io/apiserver/pkg/endpoints/request:go_default_library",
+    ],
+)
+
+filegroup(
+    name = "package-srcs",
+    srcs = glob(["**"]),
+    tags = ["automanaged"],
+    visibility = ["//visibility:private"],
+)
+
+filegroup(
+    name = "all-srcs",
+    srcs = [
+        ":package-srcs",
+        "//pkg/registry/policy/poddisruptionbudget/storage:all-srcs",
+    ],
+    tags = ["automanaged"],
+)

vendor/k8s.io/kubernetes/pkg/registry/policy/poddisruptionbudget/doc.go

@@ -0,0 +1,17 @@
+/*
+Copyright 2015 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 poddisruptionbudget // import "k8s.io/kubernetes/pkg/registry/policy/poddisruptionbudget"

vendor/k8s.io/kubernetes/pkg/registry/policy/poddisruptionbudget/storage/BUILD

@@ -0,0 +1,59 @@
+package(default_visibility = ["//visibility:public"])
+
+load(
+    "@io_bazel_rules_go//go:def.bzl",
+    "go_library",
+    "go_test",
+)
+
+go_test(
+    name = "go_default_test",
+    srcs = ["storage_test.go"],
+    importpath = "k8s.io/kubernetes/pkg/registry/policy/poddisruptionbudget/storage",
+    library = ":go_default_library",
+    deps = [
+        "//pkg/apis/policy:go_default_library",
+        "//pkg/registry/registrytest:go_default_library",
+        "//vendor/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
+        "//vendor/k8s.io/apimachinery/pkg/fields:go_default_library",
+        "//vendor/k8s.io/apimachinery/pkg/labels:go_default_library",
+        "//vendor/k8s.io/apimachinery/pkg/util/intstr:go_default_library",
+        "//vendor/k8s.io/apiserver/pkg/endpoints/request:go_default_library",
+        "//vendor/k8s.io/apiserver/pkg/registry/generic:go_default_library",
+        "//vendor/k8s.io/apiserver/pkg/registry/generic/testing:go_default_library",
+        "//vendor/k8s.io/apiserver/pkg/registry/rest:go_default_library",
+        "//vendor/k8s.io/apiserver/pkg/storage/etcd/testing:go_default_library",
+    ],
+)
+
+go_library(
+    name = "go_default_library",
+    srcs = ["storage.go"],
+    importpath = "k8s.io/kubernetes/pkg/registry/policy/poddisruptionbudget/storage",
+    deps = [
+        "//pkg/apis/policy:go_default_library",
+        "//pkg/printers:go_default_library",
+        "//pkg/printers/internalversion:go_default_library",
+        "//pkg/printers/storage:go_default_library",
+        "//pkg/registry/policy/poddisruptionbudget:go_default_library",
+        "//vendor/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
+        "//vendor/k8s.io/apimachinery/pkg/runtime:go_default_library",
+        "//vendor/k8s.io/apiserver/pkg/endpoints/request:go_default_library",
+        "//vendor/k8s.io/apiserver/pkg/registry/generic:go_default_library",
+        "//vendor/k8s.io/apiserver/pkg/registry/generic/registry:go_default_library",
+        "//vendor/k8s.io/apiserver/pkg/registry/rest:go_default_library",
+    ],
+)
+
+filegroup(
+    name = "package-srcs",
+    srcs = glob(["**"]),
+    tags = ["automanaged"],
+    visibility = ["//visibility:private"],
+)
+
+filegroup(
+    name = "all-srcs",
+    srcs = [":package-srcs"],
+    tags = ["automanaged"],
+)

vendor/k8s.io/kubernetes/pkg/registry/policy/poddisruptionbudget/storage/storage.go

@@ -0,0 +1,83 @@
+/*
+Copyright 2015 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 storage
+
+import (
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/runtime"
+	genericapirequest "k8s.io/apiserver/pkg/endpoints/request"
+	"k8s.io/apiserver/pkg/registry/generic"
+	genericregistry "k8s.io/apiserver/pkg/registry/generic/registry"
+	"k8s.io/apiserver/pkg/registry/rest"
+	policyapi "k8s.io/kubernetes/pkg/apis/policy"
+	"k8s.io/kubernetes/pkg/printers"
+	printersinternal "k8s.io/kubernetes/pkg/printers/internalversion"
+	printerstorage "k8s.io/kubernetes/pkg/printers/storage"
+	"k8s.io/kubernetes/pkg/registry/policy/poddisruptionbudget"
+)
+
+// rest implements a RESTStorage for pod disruption budgets against etcd
+type REST struct {
+	*genericregistry.Store
+}
+
+// NewREST returns a RESTStorage object that will work against pod disruption budgets.
+func NewREST(optsGetter generic.RESTOptionsGetter) (*REST, *StatusREST) {
+	store := &genericregistry.Store{
+		NewFunc:                  func() runtime.Object { return &policyapi.PodDisruptionBudget{} },
+		NewListFunc:              func() runtime.Object { return &policyapi.PodDisruptionBudgetList{} },
+		DefaultQualifiedResource: policyapi.Resource("poddisruptionbudgets"),
+
+		CreateStrategy: poddisruptionbudget.Strategy,
+		UpdateStrategy: poddisruptionbudget.Strategy,
+		DeleteStrategy: poddisruptionbudget.Strategy,
+
+		TableConvertor: printerstorage.TableConvertor{TablePrinter: printers.NewTablePrinter().With(printersinternal.AddHandlers)},
+	}
+	options := &generic.StoreOptions{RESTOptions: optsGetter}
+	if err := store.CompleteWithOptions(options); err != nil {
+		panic(err) // TODO: Propagate error up
+	}
+
+	statusStore := *store
+	statusStore.UpdateStrategy = poddisruptionbudget.StatusStrategy
+	return &REST{store}, &StatusREST{store: &statusStore}
+}
+
+// ShortNames implements the ShortNamesProvider interface. Returns a list of short names for a resource.
+func (r *REST) ShortNames() []string {
+	return []string{"pdb"}
+}
+
+// StatusREST implements the REST endpoint for changing the status of an podDisruptionBudget
+type StatusREST struct {
+	store *genericregistry.Store
+}
+
+func (r *StatusREST) New() runtime.Object {
+	return &policyapi.PodDisruptionBudget{}
+}
+
+// Get retrieves the object from the storage. It is required to support Patch.
+func (r *StatusREST) Get(ctx genericapirequest.Context, name string, options *metav1.GetOptions) (runtime.Object, error) {
+	return r.store.Get(ctx, name, options)
+}
+
+// Update alters the status subset of an object.
+func (r *StatusREST) Update(ctx genericapirequest.Context, name string, objInfo rest.UpdatedObjectInfo, createValidation rest.ValidateObjectFunc, updateValidation rest.ValidateObjectUpdateFunc) (runtime.Object, bool, error) {
+	return r.store.Update(ctx, name, objInfo, createValidation, updateValidation)
+}

vendor/k8s.io/kubernetes/pkg/registry/policy/poddisruptionbudget/storage/storage_test.go

@@ -0,0 +1,182 @@
+/*
+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 storage
+
+import (
+	"testing"
+
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/fields"
+	"k8s.io/apimachinery/pkg/labels"
+	"k8s.io/apimachinery/pkg/util/intstr"
+	genericapirequest "k8s.io/apiserver/pkg/endpoints/request"
+	"k8s.io/apiserver/pkg/registry/generic"
+	genericregistrytest "k8s.io/apiserver/pkg/registry/generic/testing"
+	"k8s.io/apiserver/pkg/registry/rest"
+	etcdtesting "k8s.io/apiserver/pkg/storage/etcd/testing"
+	"k8s.io/kubernetes/pkg/apis/policy"
+	"k8s.io/kubernetes/pkg/registry/registrytest"
+)
+
+func newStorage(t *testing.T) (*REST, *StatusREST, *etcdtesting.EtcdTestServer) {
+	etcdStorage, server := registrytest.NewEtcdStorage(t, policy.GroupName)
+	restOptions := generic.RESTOptions{StorageConfig: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1, ResourcePrefix: "poddisruptionbudgets"}
+	podDisruptionBudgetStorage, statusStorage := NewREST(restOptions)
+	return podDisruptionBudgetStorage, statusStorage, server
+}
+
+// createPodDisruptionBudget is a helper function that returns a PodDisruptionBudget with the updated resource version.
+func createPodDisruptionBudget(storage *REST, pdb policy.PodDisruptionBudget, t *testing.T) (policy.PodDisruptionBudget, error) {
+	ctx := genericapirequest.WithNamespace(genericapirequest.NewContext(), pdb.Namespace)
+	obj, err := storage.Create(ctx, &pdb, rest.ValidateAllObjectFunc, false)
+	if err != nil {
+		t.Errorf("Failed to create PodDisruptionBudget, %v", err)
+	}
+	newPS := obj.(*policy.PodDisruptionBudget)
+	return *newPS, nil
+}
+
+func validNewPodDisruptionBudget() *policy.PodDisruptionBudget {
+	minAvailable := intstr.FromInt(7)
+	return &policy.PodDisruptionBudget{
+		ObjectMeta: metav1.ObjectMeta{
+			Name:      "foo",
+			Namespace: metav1.NamespaceDefault,
+			Labels:    map[string]string{"a": "b"},
+		},
+		Spec: policy.PodDisruptionBudgetSpec{
+			Selector:     &metav1.LabelSelector{MatchLabels: map[string]string{"a": "b"}},
+			MinAvailable: &minAvailable,
+		},
+		Status: policy.PodDisruptionBudgetStatus{},
+	}
+}
+
+func TestCreate(t *testing.T) {
+	storage, _, server := newStorage(t)
+	defer server.Terminate(t)
+	defer storage.Store.DestroyFunc()
+	test := genericregistrytest.New(t, storage.Store)
+	pdb := validNewPodDisruptionBudget()
+	pdb.ObjectMeta = metav1.ObjectMeta{}
+	test.TestCreate(
+		// valid
+		pdb,
+		// TODO: Add an invalid case when we have validation.
+	)
+}
+
+// TODO: Test updates to spec when we allow them.
+
+func TestStatusUpdate(t *testing.T) {
+	storage, statusStorage, server := newStorage(t)
+	defer server.Terminate(t)
+	defer storage.Store.DestroyFunc()
+	ctx := genericapirequest.WithNamespace(genericapirequest.NewContext(), metav1.NamespaceDefault)
+	key := "/poddisruptionbudgets/" + metav1.NamespaceDefault + "/foo"
+	validPodDisruptionBudget := validNewPodDisruptionBudget()
+	if err := storage.Storage.Create(ctx, key, validPodDisruptionBudget, nil, 0); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+
+	obj, err := storage.Get(ctx, "foo", &metav1.GetOptions{})
+	if err != nil {
+		t.Fatalf("failed to get pdb: %v", err)
+	}
+	obtainedPdb := obj.(*policy.PodDisruptionBudget)
+
+	minAvailable := intstr.FromInt(8)
+	update := policy.PodDisruptionBudget{
+		ObjectMeta: obtainedPdb.ObjectMeta,
+		Spec: policy.PodDisruptionBudgetSpec{
+			MinAvailable: &minAvailable,
+		},
+		Status: policy.PodDisruptionBudgetStatus{
+			ExpectedPods: 8,
+		},
+	}
+
+	if _, _, err := statusStorage.Update(ctx, update.Name, rest.DefaultUpdatedObjectInfo(&update), rest.ValidateAllObjectFunc, rest.ValidateAllObjectUpdateFunc); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	obj, err = storage.Get(ctx, "foo", &metav1.GetOptions{})
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+
+	pdb := obj.(*policy.PodDisruptionBudget)
+	if pdb.Spec.MinAvailable.IntValue() != 7 {
+		t.Errorf("we expected .spec.replicas to not be updated but it was updated to %v", pdb.Spec.MinAvailable)
+	}
+	if pdb.Status.ExpectedPods != 8 {
+		t.Errorf("we expected .status.replicas to be updated to %d but it was %v", 7, pdb.Status.ExpectedPods)
+	}
+}
+
+func TestGet(t *testing.T) {
+	storage, _, server := newStorage(t)
+	defer server.Terminate(t)
+	defer storage.Store.DestroyFunc()
+	test := genericregistrytest.New(t, storage.Store)
+	test.TestGet(validNewPodDisruptionBudget())
+}
+
+func TestList(t *testing.T) {
+	storage, _, server := newStorage(t)
+	defer server.Terminate(t)
+	defer storage.Store.DestroyFunc()
+	test := genericregistrytest.New(t, storage.Store)
+	test.TestList(validNewPodDisruptionBudget())
+}
+
+func TestDelete(t *testing.T) {
+	storage, _, server := newStorage(t)
+	defer server.Terminate(t)
+	defer storage.Store.DestroyFunc()
+	test := genericregistrytest.New(t, storage.Store)
+	test.TestDelete(validNewPodDisruptionBudget())
+}
+
+func TestWatch(t *testing.T) {
+	storage, _, server := newStorage(t)
+	defer server.Terminate(t)
+	defer storage.Store.DestroyFunc()
+	test := genericregistrytest.New(t, storage.Store)
+	test.TestWatch(
+		validNewPodDisruptionBudget(),
+		// matching labels
+		[]labels.Set{
+			{"a": "b"},
+		},
+		// not matching labels
+		[]labels.Set{
+			{"a": "c"},
+			{"foo": "bar"},
+		},
+
+		// matching fields
+		[]fields.Set{
+			{"metadata.name": "foo"},
+		},
+		// not matching fields
+		[]fields.Set{
+			{"metadata.name": "bar"},
+		},
+	)
+}
+
+// TODO: Test generation number.

vendor/k8s.io/kubernetes/pkg/registry/policy/poddisruptionbudget/strategy.go

@@ -0,0 +1,115 @@
+/*
+Copyright 2014 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 poddisruptionbudget
+
+import (
+	apiequality "k8s.io/apimachinery/pkg/api/equality"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/apimachinery/pkg/util/validation/field"
+	genericapirequest "k8s.io/apiserver/pkg/endpoints/request"
+	"k8s.io/apiserver/pkg/storage/names"
+	"k8s.io/kubernetes/pkg/api/legacyscheme"
+	"k8s.io/kubernetes/pkg/apis/policy"
+	"k8s.io/kubernetes/pkg/apis/policy/validation"
+)
+
+// podDisruptionBudgetStrategy implements verification logic for PodDisruptionBudgets.
+type podDisruptionBudgetStrategy struct {
+	runtime.ObjectTyper
+	names.NameGenerator
+}
+
+// Strategy is the default logic that applies when creating and updating PodDisruptionBudget objects.
+var Strategy = podDisruptionBudgetStrategy{legacyscheme.Scheme, names.SimpleNameGenerator}
+
+// NamespaceScoped returns true because all PodDisruptionBudget' need to be within a namespace.
+func (podDisruptionBudgetStrategy) NamespaceScoped() bool {
+	return true
+}
+
+// PrepareForCreate clears the status of an PodDisruptionBudget before creation.
+func (podDisruptionBudgetStrategy) PrepareForCreate(ctx genericapirequest.Context, obj runtime.Object) {
+	podDisruptionBudget := obj.(*policy.PodDisruptionBudget)
+	// create cannot set status
+	podDisruptionBudget.Status = policy.PodDisruptionBudgetStatus{}
+
+	podDisruptionBudget.Generation = 1
+}
+
+// PrepareForUpdate clears fields that are not allowed to be set by end users on update.
+func (podDisruptionBudgetStrategy) PrepareForUpdate(ctx genericapirequest.Context, obj, old runtime.Object) {
+	newPodDisruptionBudget := obj.(*policy.PodDisruptionBudget)
+	oldPodDisruptionBudget := old.(*policy.PodDisruptionBudget)
+	// Update is not allowed to set status
+	newPodDisruptionBudget.Status = oldPodDisruptionBudget.Status
+
+	// Any changes to the spec increment the generation number, any changes to the
+	// status should reflect the generation number of the corresponding object.
+	// See metav1.ObjectMeta description for more information on Generation.
+	if !apiequality.Semantic.DeepEqual(oldPodDisruptionBudget.Spec, newPodDisruptionBudget.Spec) {
+		newPodDisruptionBudget.Generation = oldPodDisruptionBudget.Generation + 1
+	}
+}
+
+// Validate validates a new PodDisruptionBudget.
+func (podDisruptionBudgetStrategy) Validate(ctx genericapirequest.Context, obj runtime.Object) field.ErrorList {
+	podDisruptionBudget := obj.(*policy.PodDisruptionBudget)
+	return validation.ValidatePodDisruptionBudget(podDisruptionBudget)
+}
+
+// Canonicalize normalizes the object after validation.
+func (podDisruptionBudgetStrategy) Canonicalize(obj runtime.Object) {
+}
+
+// AllowCreateOnUpdate is true for PodDisruptionBudget; this means you may create one with a PUT request.
+func (podDisruptionBudgetStrategy) AllowCreateOnUpdate() bool {
+	return false
+}
+
+// ValidateUpdate is the default update validation for an end user.
+func (podDisruptionBudgetStrategy) ValidateUpdate(ctx genericapirequest.Context, obj, old runtime.Object) field.ErrorList {
+	validationErrorList := validation.ValidatePodDisruptionBudget(obj.(*policy.PodDisruptionBudget))
+	updateErrorList := validation.ValidatePodDisruptionBudgetUpdate(obj.(*policy.PodDisruptionBudget), old.(*policy.PodDisruptionBudget))
+	return append(validationErrorList, updateErrorList...)
+}
+
+// AllowUnconditionalUpdate is the default update policy for PodDisruptionBudget objects. Status update should
+// only be allowed if version match.
+func (podDisruptionBudgetStrategy) AllowUnconditionalUpdate() bool {
+	return false
+}
+
+type podDisruptionBudgetStatusStrategy struct {
+	podDisruptionBudgetStrategy
+}
+
+var StatusStrategy = podDisruptionBudgetStatusStrategy{Strategy}
+
+// PrepareForUpdate clears fields that are not allowed to be set by end users on update of status
+func (podDisruptionBudgetStatusStrategy) PrepareForUpdate(ctx genericapirequest.Context, obj, old runtime.Object) {
+	newPodDisruptionBudget := obj.(*policy.PodDisruptionBudget)
+	oldPodDisruptionBudget := old.(*policy.PodDisruptionBudget)
+	// status changes are not allowed to update spec
+	newPodDisruptionBudget.Spec = oldPodDisruptionBudget.Spec
+}
+
+// ValidateUpdate is the default update validation for an end user updating status
+func (podDisruptionBudgetStatusStrategy) ValidateUpdate(ctx genericapirequest.Context, obj, old runtime.Object) field.ErrorList {
+	// TODO: Validate status updates.
+	return field.ErrorList{}
+	// return validation.ValidatePodDisruptionBudgetStatusUpdate(obj.(*policy.PodDisruptionBudget), old.(*policy.PodDisruptionBudget))
+}

vendor/k8s.io/kubernetes/pkg/registry/policy/poddisruptionbudget/strategy_test.go

@@ -0,0 +1,148 @@
+/*
+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 poddisruptionbudget
+
+import (
+	"testing"
+
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/util/intstr"
+	genericapirequest "k8s.io/apiserver/pkg/endpoints/request"
+	"k8s.io/kubernetes/pkg/apis/policy"
+)
+
+func TestPodDisruptionBudgetStrategy(t *testing.T) {
+	ctx := genericapirequest.NewDefaultContext()
+	if !Strategy.NamespaceScoped() {
+		t.Errorf("PodDisruptionBudget must be namespace scoped")
+	}
+	if Strategy.AllowCreateOnUpdate() {
+		t.Errorf("PodDisruptionBudget should not allow create on update")
+	}
+
+	validSelector := map[string]string{"a": "b"}
+	minAvailable := intstr.FromInt(3)
+	pdb := &policy.PodDisruptionBudget{
+		ObjectMeta: metav1.ObjectMeta{Name: "abc", Namespace: metav1.NamespaceDefault},
+		Spec: policy.PodDisruptionBudgetSpec{
+			MinAvailable: &minAvailable,
+			Selector:     &metav1.LabelSelector{MatchLabels: validSelector},
+		},
+	}
+
+	Strategy.PrepareForCreate(ctx, pdb)
+	errs := Strategy.Validate(ctx, pdb)
+	if len(errs) != 0 {
+		t.Errorf("Unexpected error validating %v", errs)
+	}
+
+	newPdb := &policy.PodDisruptionBudget{
+		ObjectMeta: metav1.ObjectMeta{Name: pdb.Name, Namespace: pdb.Namespace},
+		Spec:       pdb.Spec,
+		Status: policy.PodDisruptionBudgetStatus{
+			PodDisruptionsAllowed: 1,
+			CurrentHealthy:        3,
+			DesiredHealthy:        3,
+			ExpectedPods:          3,
+		},
+	}
+
+	// Nothing in Spec changes: OK
+	Strategy.PrepareForUpdate(ctx, newPdb, pdb)
+	errs = Strategy.ValidateUpdate(ctx, newPdb, pdb)
+	if len(errs) != 0 {
+		t.Errorf("Unexpected error updating PodDisruptionBudget.")
+	}
+
+	// Changing the selector?  No.
+	newPdb.Spec.Selector = &metav1.LabelSelector{MatchLabels: map[string]string{"a": "bar"}}
+	Strategy.PrepareForUpdate(ctx, newPdb, pdb)
+	errs = Strategy.ValidateUpdate(ctx, newPdb, pdb)
+	if len(errs) == 0 {
+		t.Errorf("Expected a validation error since updates are disallowed on poddisruptionbudgets.")
+	}
+	newPdb.Spec.Selector = pdb.Spec.Selector
+
+	// Changing MinAvailable?  Also no.
+	newMinAvailable := intstr.FromString("28%")
+	newPdb.Spec.MinAvailable = &newMinAvailable
+	Strategy.PrepareForUpdate(ctx, newPdb, pdb)
+	errs = Strategy.ValidateUpdate(ctx, newPdb, pdb)
+	if len(errs) == 0 {
+		t.Errorf("Expected a validation error since updates are disallowed on poddisruptionbudgets.")
+	}
+
+	maxUnavailable := intstr.FromString("28%")
+	newPdb.Spec.MaxUnavailable = &maxUnavailable
+	Strategy.PrepareForUpdate(ctx, newPdb, pdb)
+	errs = Strategy.ValidateUpdate(ctx, newPdb, pdb)
+	if len(errs) == 0 {
+		t.Errorf("Expected a validation error since updates are disallowed on poddisruptionbudgets.")
+	}
+}
+
+func TestPodDisruptionBudgetStatusStrategy(t *testing.T) {
+	ctx := genericapirequest.NewDefaultContext()
+	if !StatusStrategy.NamespaceScoped() {
+		t.Errorf("PodDisruptionBudgetStatus must be namespace scoped")
+	}
+	if StatusStrategy.AllowCreateOnUpdate() {
+		t.Errorf("PodDisruptionBudgetStatus should not allow create on update")
+	}
+
+	oldMinAvailable := intstr.FromInt(3)
+	newMinAvailable := intstr.FromInt(2)
+
+	validSelector := map[string]string{"a": "b"}
+	oldPdb := &policy.PodDisruptionBudget{
+		ObjectMeta: metav1.ObjectMeta{Name: "abc", Namespace: metav1.NamespaceDefault, ResourceVersion: "10"},
+		Spec: policy.PodDisruptionBudgetSpec{
+			Selector:     &metav1.LabelSelector{MatchLabels: validSelector},
+			MinAvailable: &oldMinAvailable,
+		},
+		Status: policy.PodDisruptionBudgetStatus{
+			PodDisruptionsAllowed: 1,
+			CurrentHealthy:        3,
+			DesiredHealthy:        3,
+			ExpectedPods:          3,
+		},
+	}
+	newPdb := &policy.PodDisruptionBudget{
+		ObjectMeta: metav1.ObjectMeta{Name: "abc", Namespace: metav1.NamespaceDefault, ResourceVersion: "9"},
+		Spec: policy.PodDisruptionBudgetSpec{
+			Selector:     &metav1.LabelSelector{MatchLabels: validSelector},
+			MinAvailable: &newMinAvailable,
+		},
+		Status: policy.PodDisruptionBudgetStatus{
+			PodDisruptionsAllowed: 0,
+			CurrentHealthy:        2,
+			DesiredHealthy:        3,
+			ExpectedPods:          3,
+		},
+	}
+	StatusStrategy.PrepareForUpdate(ctx, newPdb, oldPdb)
+	if newPdb.Status.CurrentHealthy != 2 {
+		t.Errorf("PodDisruptionBudget status updates should allow change of CurrentHealthy: %v", newPdb.Status.CurrentHealthy)
+	}
+	if newPdb.Spec.MinAvailable.IntValue() != 3 {
+		t.Errorf("PodDisruptionBudget status updates should not clobber spec: %v", newPdb.Spec)
+	}
+	errs := StatusStrategy.ValidateUpdate(ctx, newPdb, oldPdb)
+	if len(errs) != 0 {
+		t.Errorf("Unexpected error %v", errs)
+	}
+}

vendor/k8s.io/kubernetes/pkg/registry/policy/rest/BUILD

@@ -0,0 +1,35 @@
+package(default_visibility = ["//visibility:public"])
+
+load(
+    "@io_bazel_rules_go//go:def.bzl",
+    "go_library",
+)
+
+go_library(
+    name = "go_default_library",
+    srcs = ["storage_policy.go"],
+    importpath = "k8s.io/kubernetes/pkg/registry/policy/rest",
+    deps = [
+        "//pkg/api/legacyscheme:go_default_library",
+        "//pkg/apis/policy:go_default_library",
+        "//pkg/registry/policy/poddisruptionbudget/storage:go_default_library",
+        "//vendor/k8s.io/api/policy/v1beta1:go_default_library",
+        "//vendor/k8s.io/apiserver/pkg/registry/generic:go_default_library",
+        "//vendor/k8s.io/apiserver/pkg/registry/rest:go_default_library",
+        "//vendor/k8s.io/apiserver/pkg/server:go_default_library",
+        "//vendor/k8s.io/apiserver/pkg/server/storage:go_default_library",
+    ],
+)
+
+filegroup(
+    name = "package-srcs",
+    srcs = glob(["**"]),
+    tags = ["automanaged"],
+    visibility = ["//visibility:private"],
+)
+
+filegroup(
+    name = "all-srcs",
+    srcs = [":package-srcs"],
+    tags = ["automanaged"],
+)

vendor/k8s.io/kubernetes/pkg/registry/policy/rest/storage_policy.go

@@ -0,0 +1,57 @@
+/*
+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 rest
+
+import (
+	policyapiv1beta1 "k8s.io/api/policy/v1beta1"
+	"k8s.io/apiserver/pkg/registry/generic"
+	"k8s.io/apiserver/pkg/registry/rest"
+	genericapiserver "k8s.io/apiserver/pkg/server"
+	serverstorage "k8s.io/apiserver/pkg/server/storage"
+	"k8s.io/kubernetes/pkg/api/legacyscheme"
+	"k8s.io/kubernetes/pkg/apis/policy"
+	poddisruptionbudgetstore "k8s.io/kubernetes/pkg/registry/policy/poddisruptionbudget/storage"
+)
+
+type RESTStorageProvider struct{}
+
+func (p RESTStorageProvider) NewRESTStorage(apiResourceConfigSource serverstorage.APIResourceConfigSource, restOptionsGetter generic.RESTOptionsGetter) (genericapiserver.APIGroupInfo, bool) {
+	apiGroupInfo := genericapiserver.NewDefaultAPIGroupInfo(policy.GroupName, legacyscheme.Registry, legacyscheme.Scheme, legacyscheme.ParameterCodec, legacyscheme.Codecs)
+	// If you add a version here, be sure to add an entry in `k8s.io/kubernetes/cmd/kube-apiserver/app/aggregator.go with specific priorities.
+	// TODO refactor the plumbing to provide the information in the APIGroupInfo
+
+	if apiResourceConfigSource.AnyResourcesForVersionEnabled(policyapiv1beta1.SchemeGroupVersion) {
+		apiGroupInfo.VersionedResourcesStorageMap[policyapiv1beta1.SchemeGroupVersion.Version] = p.v1beta1Storage(apiResourceConfigSource, restOptionsGetter)
+		apiGroupInfo.GroupMeta.GroupVersion = policyapiv1beta1.SchemeGroupVersion
+	}
+	return apiGroupInfo, true
+}
+
+func (p RESTStorageProvider) v1beta1Storage(apiResourceConfigSource serverstorage.APIResourceConfigSource, restOptionsGetter generic.RESTOptionsGetter) map[string]rest.Storage {
+	version := policyapiv1beta1.SchemeGroupVersion
+	storage := map[string]rest.Storage{}
+	if apiResourceConfigSource.ResourceEnabled(version.WithResource("poddisruptionbudgets")) {
+		poddisruptionbudgetStorage, poddisruptionbudgetStatusStorage := poddisruptionbudgetstore.NewREST(restOptionsGetter)
+		storage["poddisruptionbudgets"] = poddisruptionbudgetStorage
+		storage["poddisruptionbudgets/status"] = poddisruptionbudgetStatusStorage
+	}
+	return storage
+}
+
+func (p RESTStorageProvider) GroupName() string {
+	return policy.GroupName
+}