use istio client-go library instead of knative (#1661)

use istio client-go library instead of knative
bump kubernetes dependency version
change code coverage to codecov

vendor/k8s.io/apimachinery/pkg/api/errors/OWNERS

@@ -1,3 +1,5 @@
+# See the OWNERS docs at https://go.k8s.io/owners
+
 reviewers:
 - thockin
 - lavalamp

vendor/k8s.io/apimachinery/pkg/api/errors/errors.go

@@ -32,7 +32,9 @@ import (
 const (
 	// StatusTooManyRequests means the server experienced too many requests within a
 	// given window and that the client must wait to perform the action again.
-	StatusTooManyRequests = 429
+	// DEPRECATED: please use http.StatusTooManyRequests, this will be removed in
+	// the future version.
+	StatusTooManyRequests = http.StatusTooManyRequests
 )
 
 // StatusError is an error intended for consumption by a REST API server; it can also be
@@ -184,6 +186,20 @@ func NewConflict(qualifiedResource schema.GroupResource, name string, err error)
 	}}
 }
 
+// NewApplyConflict returns an error including details on the requests apply conflicts
+func NewApplyConflict(causes []metav1.StatusCause, message string) *StatusError {
+	return &StatusError{ErrStatus: metav1.Status{
+		Status: metav1.StatusFailure,
+		Code:   http.StatusConflict,
+		Reason: metav1.StatusReasonConflict,
+		Details: &metav1.StatusDetails{
+			// TODO: Get obj details here?
+			Causes: causes,
+		},
+		Message: message,
+	}}
+}
+
 // NewGone returns an error indicating the item no longer available at the server and no forwarding address is known.
 func NewGone(message string) *StatusError {
 	return &StatusError{metav1.Status{
@@ -335,7 +351,7 @@ func NewTimeoutError(message string, retryAfterSeconds int) *StatusError {
 func NewTooManyRequestsError(message string) *StatusError {
 	return &StatusError{metav1.Status{
 		Status:  metav1.StatusFailure,
-		Code:    StatusTooManyRequests,
+		Code:    http.StatusTooManyRequests,
 		Reason:  metav1.StatusReasonTooManyRequests,
 		Message: fmt.Sprintf("Too many requests: %s", message),
 	}}
@@ -380,7 +396,11 @@ func NewGenericServerResponse(code int, verb string, qualifiedResource schema.Gr
 	case http.StatusNotAcceptable:
 		reason = metav1.StatusReasonNotAcceptable
 		// the server message has details about what types are acceptable
-		message = serverMessage
+		if len(serverMessage) == 0 || serverMessage == "unknown" {
+			message = "the server was unable to respond with a content type that the client supports"
+		} else {
+			message = serverMessage
+		}
 	case http.StatusUnsupportedMediaType:
 		reason = metav1.StatusReasonUnsupportedMediaType
 		// the server message has details about what types are acceptable
@@ -603,3 +623,46 @@ func ReasonForError(err error) metav1.StatusReason {
 	}
 	return metav1.StatusReasonUnknown
 }
+
+// ErrorReporter converts generic errors into runtime.Object errors without
+// requiring the caller to take a dependency on meta/v1 (where Status lives).
+// This prevents circular dependencies in core watch code.
+type ErrorReporter struct {
+	code   int
+	verb   string
+	reason string
+}
+
+// NewClientErrorReporter will respond with valid v1.Status objects that report
+// unexpected server responses. Primarily used by watch to report errors when
+// we attempt to decode a response from the server and it is not in the form
+// we expect. Because watch is a dependency of the core api, we can't return
+// meta/v1.Status in that package and so much inject this interface to convert a
+// generic error as appropriate. The reason is passed as a unique status cause
+// on the returned status, otherwise the generic "ClientError" is returned.
+func NewClientErrorReporter(code int, verb string, reason string) *ErrorReporter {
+	return &ErrorReporter{
+		code:   code,
+		verb:   verb,
+		reason: reason,
+	}
+}
+
+// AsObject returns a valid error runtime.Object (a v1.Status) for the given
+// error, using the code and verb of the reporter type. The error is set to
+// indicate that this was an unexpected server response.
+func (r *ErrorReporter) AsObject(err error) runtime.Object {
+	status := NewGenericServerResponse(r.code, r.verb, schema.GroupResource{}, "", err.Error(), 0, true)
+	if status.ErrStatus.Details == nil {
+		status.ErrStatus.Details = &metav1.StatusDetails{}
+	}
+	reason := r.reason
+	if len(reason) == 0 {
+		reason = "ClientError"
+	}
+	status.ErrStatus.Details.Causes = append(status.ErrStatus.Details.Causes, metav1.StatusCause{
+		Type:    metav1.CauseType(reason),
+		Message: err.Error(),
+	})
+	return &status.ErrStatus
+}

vendor/k8s.io/apimachinery/pkg/api/meta/OWNERS

@@ -1,3 +1,5 @@
+# See the OWNERS docs at https://go.k8s.io/owners
+
 reviewers:
 - thockin
 - smarterclayton

vendor/k8s.io/apimachinery/pkg/api/meta/help.go

@@ -17,30 +17,76 @@ limitations under the License.
 package meta
 
 import (
+	"errors"
 	"fmt"
 	"reflect"
+	"sync"
 
 	"k8s.io/apimachinery/pkg/conversion"
 	"k8s.io/apimachinery/pkg/runtime"
 )
 
-// IsListType returns true if the provided Object has a slice called Items
+var (
+	// isListCache maintains a cache of types that are checked for lists
+	// which is used by IsListType.
+	// TODO: remove and replace with an interface check
+	isListCache = struct {
+		lock   sync.RWMutex
+		byType map[reflect.Type]bool
+	}{
+		byType: make(map[reflect.Type]bool, 1024),
+	}
+)
+
+// IsListType returns true if the provided Object has a slice called Items.
+// TODO: Replace the code in this check with an interface comparison by
+//   creating and enforcing that lists implement a list accessor.
 func IsListType(obj runtime.Object) bool {
-	// if we're a runtime.Unstructured, check whether this is a list.
-	// TODO: refactor GetItemsPtr to use an interface that returns []runtime.Object
-	if unstructured, ok := obj.(runtime.Unstructured); ok {
-		return unstructured.IsList()
+	switch t := obj.(type) {
+	case runtime.Unstructured:
+		return t.IsList()
+	}
+	t := reflect.TypeOf(obj)
+
+	isListCache.lock.RLock()
+	ok, exists := isListCache.byType[t]
+	isListCache.lock.RUnlock()
+
+	if !exists {
+		_, err := getItemsPtr(obj)
+		ok = err == nil
+
+		// cache only the first 1024 types
+		isListCache.lock.Lock()
+		if len(isListCache.byType) < 1024 {
+			isListCache.byType[t] = ok
+		}
+		isListCache.lock.Unlock()
 	}
 
-	_, err := GetItemsPtr(obj)
-	return err == nil
+	return ok
 }
 
+var (
+	errExpectFieldItems = errors.New("no Items field in this object")
+	errExpectSliceItems = errors.New("Items field must be a slice of objects")
+)
+
 // GetItemsPtr returns a pointer to the list object's Items member.
 // If 'list' doesn't have an Items member, it's not really a list type
 // and an error will be returned.
 // This function will either return a pointer to a slice, or an error, but not both.
+// TODO: this will be replaced with an interface in the future
 func GetItemsPtr(list runtime.Object) (interface{}, error) {
+	obj, err := getItemsPtr(list)
+	if err != nil {
+		return nil, fmt.Errorf("%T is not a list: %v", list, err)
+	}
+	return obj, nil
+}
+
+// getItemsPtr returns a pointer to the list object's Items member or an error.
+func getItemsPtr(list runtime.Object) (interface{}, error) {
 	v, err := conversion.EnforcePtr(list)
 	if err != nil {
 		return nil, err
@@ -48,19 +94,19 @@ func GetItemsPtr(list runtime.Object) (interface{}, error) {
 
 	items := v.FieldByName("Items")
 	if !items.IsValid() {
-		return nil, fmt.Errorf("no Items field in %#v", list)
+		return nil, errExpectFieldItems
 	}
 	switch items.Kind() {
 	case reflect.Interface, reflect.Ptr:
 		target := reflect.TypeOf(items.Interface()).Elem()
 		if target.Kind() != reflect.Slice {
-			return nil, fmt.Errorf("items: Expected slice, got %s", target.Kind())
+			return nil, errExpectSliceItems
 		}
 		return items.Interface(), nil
 	case reflect.Slice:
 		return items.Addr().Interface(), nil
 	default:
-		return nil, fmt.Errorf("items: Expected slice, got %s", items.Kind())
+		return nil, errExpectSliceItems
 	}
 }
 
@@ -158,6 +204,19 @@ func ExtractList(obj runtime.Object) ([]runtime.Object, error) {
 // objectSliceType is the type of a slice of Objects
 var objectSliceType = reflect.TypeOf([]runtime.Object{})
 
+// LenList returns the length of this list or 0 if it is not a list.
+func LenList(list runtime.Object) int {
+	itemsPtr, err := GetItemsPtr(list)
+	if err != nil {
+		return 0
+	}
+	items, err := conversion.EnforcePtr(itemsPtr)
+	if err != nil {
+		return 0
+	}
+	return items.Len()
+}
+
 // SetList sets the given list object's Items member have the elements given in
 // objects.
 // Returns an error if list is not a List type (does not have an Items member),

vendor/k8s.io/apimachinery/pkg/api/meta/meta.go

@@ -20,14 +20,12 @@ import (
 	"fmt"
 	"reflect"
 
-	"k8s.io/klog"
-
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	metav1beta1 "k8s.io/apimachinery/pkg/apis/meta/v1beta1"
 	"k8s.io/apimachinery/pkg/conversion"
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apimachinery/pkg/runtime/schema"
 	"k8s.io/apimachinery/pkg/types"
+	"k8s.io/klog"
 )
 
 // errNotList is returned when an object implements the Object style interfaces but not the List style
@@ -115,12 +113,12 @@ func Accessor(obj interface{}) (metav1.Object, error) {
 
 // AsPartialObjectMetadata takes the metav1 interface and returns a partial object.
 // TODO: consider making this solely a conversion action.
-func AsPartialObjectMetadata(m metav1.Object) *metav1beta1.PartialObjectMetadata {
+func AsPartialObjectMetadata(m metav1.Object) *metav1.PartialObjectMetadata {
 	switch t := m.(type) {
 	case *metav1.ObjectMeta:
-		return &metav1beta1.PartialObjectMetadata{ObjectMeta: *t}
+		return &metav1.PartialObjectMetadata{ObjectMeta: *t}
 	default:
-		return &metav1beta1.PartialObjectMetadata{
+		return &metav1.PartialObjectMetadata{
 			ObjectMeta: metav1.ObjectMeta{
 				Name:                       m.GetName(),
 				GenerateName:               m.GetGenerateName(),
@@ -137,7 +135,7 @@ func AsPartialObjectMetadata(m metav1.Object) *metav1beta1.PartialObjectMetadata
 				OwnerReferences:            m.GetOwnerReferences(),
 				Finalizers:                 m.GetFinalizers(),
 				ClusterName:                m.GetClusterName(),
-				Initializers:               m.GetInitializers(),
+				ManagedFields:              m.GetManagedFields(),
 			},
 		}
 	}

vendor/k8s.io/apimachinery/pkg/api/resource/OWNERS

@@ -1,3 +1,5 @@
+# See the OWNERS docs at https://go.k8s.io/owners
+
 reviewers:
 - thockin
 - lavalamp

vendor/k8s.io/apimachinery/pkg/api/resource/generated.pb.go

@@ -17,20 +17,15 @@ limitations under the License.
 // Code generated by protoc-gen-gogo. DO NOT EDIT.
 // source: k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/api/resource/generated.proto
 
-/*
-Package resource is a generated protocol buffer package.
-
-It is generated from these files:
-	k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/api/resource/generated.proto
-
-It has these top-level messages:
-	Quantity
-*/
 package resource
 
-import proto "github.com/gogo/protobuf/proto"
-import fmt "fmt"
-import math "math"
+import (
+	fmt "fmt"
+
+	math "math"
+
+	proto "github.com/gogo/protobuf/proto"
+)
 
 // Reference imports to suppress errors if they are not otherwise used.
 var _ = proto.Marshal
@@ -43,19 +38,38 @@ var _ = math.Inf
 // proto package needs to be updated.
 const _ = proto.GoGoProtoPackageIsVersion2 // please upgrade the proto package
 
-func (m *Quantity) Reset()                    { *m = Quantity{} }
-func (*Quantity) ProtoMessage()               {}
-func (*Quantity) Descriptor() ([]byte, []int) { return fileDescriptorGenerated, []int{0} }
+func (m *Quantity) Reset()      { *m = Quantity{} }
+func (*Quantity) ProtoMessage() {}
+func (*Quantity) Descriptor() ([]byte, []int) {
+	return fileDescriptor_612bba87bd70906c, []int{0}
+}
+func (m *Quantity) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_Quantity.Unmarshal(m, b)
+}
+func (m *Quantity) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_Quantity.Marshal(b, m, deterministic)
+}
+func (m *Quantity) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_Quantity.Merge(m, src)
+}
+func (m *Quantity) XXX_Size() int {
+	return xxx_messageInfo_Quantity.Size(m)
+}
+func (m *Quantity) XXX_DiscardUnknown() {
+	xxx_messageInfo_Quantity.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_Quantity proto.InternalMessageInfo
 
 func init() {
 	proto.RegisterType((*Quantity)(nil), "k8s.io.apimachinery.pkg.api.resource.Quantity")
 }
 
 func init() {
-	proto.RegisterFile("k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/api/resource/generated.proto", fileDescriptorGenerated)
+	proto.RegisterFile("k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/api/resource/generated.proto", fileDescriptor_612bba87bd70906c)
 }
 
-var fileDescriptorGenerated = []byte{
+var fileDescriptor_612bba87bd70906c = []byte{
 	// 237 bytes of a gzipped FileDescriptorProto
 	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x4c, 0x8e, 0xb1, 0x4e, 0xc3, 0x30,
 	0x10, 0x40, 0xcf, 0x0b, 0x2a, 0x19, 0x2b, 0x84, 0x10, 0xc3, 0xa5, 0x42, 0x0c, 0x2c, 0xd8, 0x6b,

vendor/k8s.io/apimachinery/pkg/api/resource/generated.proto

@@ -26,7 +26,7 @@ option go_package = "resource";
 
 // Quantity is a fixed-point representation of a number.
 // It provides convenient marshaling/unmarshaling in JSON and YAML,
-// in addition to String() and Int64() accessors.
+// in addition to String() and AsInt64() accessors.
 //
 // The serialization format is:
 //

vendor/k8s.io/apimachinery/pkg/api/resource/math.go

@@ -194,9 +194,9 @@ func negativeScaleInt64(base int64, scale Scale) (result int64, exact bool) {
 	}
 	if fraction {
 		if base > 0 {
-			value += 1
+			value++
 		} else {
-			value += -1
+			value--
 		}
 	}
 	return value, !fraction

vendor/k8s.io/apimachinery/pkg/api/resource/quantity.go

@@ -29,7 +29,7 @@ import (
 
 // Quantity is a fixed-point representation of a number.
 // It provides convenient marshaling/unmarshaling in JSON and YAML,
-// in addition to String() and Int64() accessors.
+// in addition to String() and AsInt64() accessors.
 //
 // The serialization format is:
 //
@@ -584,6 +584,12 @@ func (q *Quantity) Neg() {
 	q.d.Dec.Neg(q.d.Dec)
 }
 
+// Equal checks equality of two Quantities. This is useful for testing with
+// cmp.Equal.
+func (q Quantity) Equal(v Quantity) bool {
+	return q.Cmp(v) == 0
+}
+
 // int64QuantityExpectedBytes is the expected width in bytes of the canonical string representation
 // of most Quantity values.
 const int64QuantityExpectedBytes = 18
@@ -680,7 +686,7 @@ func NewScaledQuantity(value int64, scale Scale) *Quantity {
 	}
 }
 
-// Value returns the value of q; any fractional part will be lost.
+// Value returns the unscaled value of q rounded up to the nearest integer away from 0.
 func (q *Quantity) Value() int64 {
 	return q.ScaledValue(0)
 }
@@ -691,7 +697,9 @@ func (q *Quantity) MilliValue() int64 {
 	return q.ScaledValue(Milli)
 }
 
-// ScaledValue returns the value of ceil(q * 10^scale); this could overflow an int64.
+// ScaledValue returns the value of ceil(q / 10^scale).
+// For example, NewQuantity(1, DecimalSI).ScaledValue(Milli) returns 1000.
+// This could overflow an int64.
 // To detect overflow, call Value() first and verify the expected magnitude.
 func (q *Quantity) ScaledValue(scale Scale) int64 {
 	if q.d.Dec == nil {
@@ -718,21 +726,3 @@ func (q *Quantity) SetScaled(value int64, scale Scale) {
 	q.d.Dec = nil
 	q.i = int64Amount{value: value, scale: scale}
 }
-
-// Copy is a convenience function that makes a deep copy for you. Non-deep
-// copies of quantities share pointers and you will regret that.
-func (q *Quantity) Copy() *Quantity {
-	if q.d.Dec == nil {
-		return &Quantity{
-			s:      q.s,
-			i:      q.i,
-			Format: q.Format,
-		}
-	}
-	tmp := &inf.Dec{}
-	return &Quantity{
-		s:      q.s,
-		d:      infDecAmount{tmp.Set(q.d.Dec)},
-		Format: q.Format,
-	}
-}

vendor/k8s.io/apimachinery/pkg/api/resource/quantity_proto.go

@@ -19,6 +19,7 @@ package resource
 import (
 	"fmt"
 	"io"
+	"math/bits"
 
 	"github.com/gogo/protobuf/proto"
 )
@@ -28,7 +29,7 @@ var _ proto.Sizer = &Quantity{}
 func (m *Quantity) Marshal() (data []byte, err error) {
 	size := m.Size()
 	data = make([]byte, size)
-	n, err := m.MarshalTo(data)
+	n, err := m.MarshalToSizedBuffer(data[:size])
 	if err != nil {
 		return nil, err
 	}
@@ -38,30 +39,40 @@ func (m *Quantity) Marshal() (data []byte, err error) {
 // MarshalTo is a customized version of the generated Protobuf unmarshaler for a struct
 // with a single string field.
 func (m *Quantity) MarshalTo(data []byte) (int, error) {
-	var i int
+	size := m.Size()
+	return m.MarshalToSizedBuffer(data[:size])
+}
+
+// MarshalToSizedBuffer is a customized version of the generated
+// Protobuf unmarshaler for a struct with a single string field.
+func (m *Quantity) MarshalToSizedBuffer(data []byte) (int, error) {
+	i := len(data)
 	_ = i
 	var l int
 	_ = l
 
-	data[i] = 0xa
-	i++
 	// BEGIN CUSTOM MARSHAL
 	out := m.String()
+	i -= len(out)
+	copy(data[i:], out)
 	i = encodeVarintGenerated(data, i, uint64(len(out)))
-	i += copy(data[i:], out)
 	// END CUSTOM MARSHAL
+	i--
+	data[i] = 0xa
 
-	return i, nil
+	return len(data) - i, nil
 }
 
 func encodeVarintGenerated(data []byte, offset int, v uint64) int {
+	offset -= sovGenerated(v)
+	base := offset
 	for v >= 1<<7 {
 		data[offset] = uint8(v&0x7f | 0x80)
 		v >>= 7
 		offset++
 	}
 	data[offset] = uint8(v)
-	return offset + 1
+	return base
 }
 
 func (m *Quantity) Size() (n int) {
@@ -77,14 +88,7 @@ func (m *Quantity) Size() (n int) {
 }
 
 func sovGenerated(x uint64) (n int) {
-	for {
-		n++
-		x >>= 7
-		if x == 0 {
-			break
-		}
-	}
-	return n
+	return (bits.Len64(x|1) + 6) / 7
 }
 
 // Unmarshal is a customized version of the generated Protobuf unmarshaler for a struct

vendor/k8s.io/apimachinery/pkg/api/validation/objectmeta.go

@@ -176,37 +176,15 @@ func ValidateObjectMetaAccessor(meta metav1.Object, requiresNamespace bool, name
 			allErrs = append(allErrs, field.Invalid(fldPath.Child("clusterName"), meta.GetClusterName(), msg))
 		}
 	}
+	for _, entry := range meta.GetManagedFields() {
+		allErrs = append(allErrs, v1validation.ValidateFieldManager(entry.Manager, fldPath.Child("fieldManager"))...)
+	}
 	allErrs = append(allErrs, ValidateNonnegativeField(meta.GetGeneration(), fldPath.Child("generation"))...)
 	allErrs = append(allErrs, v1validation.ValidateLabels(meta.GetLabels(), fldPath.Child("labels"))...)
 	allErrs = append(allErrs, ValidateAnnotations(meta.GetAnnotations(), fldPath.Child("annotations"))...)
 	allErrs = append(allErrs, ValidateOwnerReferences(meta.GetOwnerReferences(), fldPath.Child("ownerReferences"))...)
-	allErrs = append(allErrs, ValidateInitializers(meta.GetInitializers(), fldPath.Child("initializers"))...)
 	allErrs = append(allErrs, ValidateFinalizers(meta.GetFinalizers(), fldPath.Child("finalizers"))...)
-	return allErrs
-}
-
-func ValidateInitializers(initializers *metav1.Initializers, fldPath *field.Path) field.ErrorList {
-	var allErrs field.ErrorList
-	if initializers == nil {
-		return allErrs
-	}
-	for i, initializer := range initializers.Pending {
-		allErrs = append(allErrs, validation.IsFullyQualifiedName(fldPath.Child("pending").Index(i).Child("name"), initializer.Name)...)
-	}
-	allErrs = append(allErrs, validateInitializersResult(initializers.Result, fldPath.Child("result"))...)
-	return allErrs
-}
-
-func validateInitializersResult(result *metav1.Status, fldPath *field.Path) field.ErrorList {
-	var allErrs field.ErrorList
-	if result == nil {
-		return allErrs
-	}
-	switch result.Status {
-	case metav1.StatusFailure:
-	default:
-		allErrs = append(allErrs, field.Invalid(fldPath.Child("status"), result.Status, "must be 'Failure'"))
-	}
+	allErrs = append(allErrs, v1validation.ValidateManagedFields(meta.GetManagedFields(), fldPath.Child("managedFields"))...)
 	return allErrs
 }
 
@@ -265,8 +243,9 @@ func ValidateObjectMetaAccessorUpdate(newMeta, oldMeta metav1.Object, fldPath *f
 		allErrs = append(allErrs, field.Invalid(fldPath.Child("generation"), newMeta.GetGeneration(), "must not be decremented"))
 	}
 
-	allErrs = append(allErrs, ValidateInitializersUpdate(newMeta.GetInitializers(), oldMeta.GetInitializers(), fldPath.Child("initializers"))...)
-
+	for _, entry := range newMeta.GetManagedFields() {
+		allErrs = append(allErrs, v1validation.ValidateFieldManager(entry.Manager, fldPath.Child("fieldManager"))...)
+	}
 	allErrs = append(allErrs, ValidateImmutableField(newMeta.GetName(), oldMeta.GetName(), fldPath.Child("name"))...)
 	allErrs = append(allErrs, ValidateImmutableField(newMeta.GetNamespace(), oldMeta.GetNamespace(), fldPath.Child("namespace"))...)
 	allErrs = append(allErrs, ValidateImmutableField(newMeta.GetUID(), oldMeta.GetUID(), fldPath.Child("uid"))...)
@@ -278,31 +257,7 @@ func ValidateObjectMetaAccessorUpdate(newMeta, oldMeta metav1.Object, fldPath *f
 	allErrs = append(allErrs, v1validation.ValidateLabels(newMeta.GetLabels(), fldPath.Child("labels"))...)
 	allErrs = append(allErrs, ValidateAnnotations(newMeta.GetAnnotations(), fldPath.Child("annotations"))...)
 	allErrs = append(allErrs, ValidateOwnerReferences(newMeta.GetOwnerReferences(), fldPath.Child("ownerReferences"))...)
+	allErrs = append(allErrs, v1validation.ValidateManagedFields(newMeta.GetManagedFields(), fldPath.Child("managedFields"))...)
 
 	return allErrs
 }
-
-// ValidateInitializersUpdate checks the update of the metadata initializers field
-func ValidateInitializersUpdate(newInit, oldInit *metav1.Initializers, fldPath *field.Path) field.ErrorList {
-	var allErrs field.ErrorList
-	switch {
-	case oldInit == nil && newInit != nil:
-		// Initializers may not be set on new objects
-		allErrs = append(allErrs, field.Invalid(fldPath, nil, "field is immutable once initialization has completed"))
-	case oldInit != nil && newInit == nil:
-		// this is a valid transition and means initialization was successful
-	case oldInit != nil && newInit != nil:
-		// validate changes to initializers
-		switch {
-		case oldInit.Result == nil && newInit.Result != nil:
-			// setting a result is allowed
-			allErrs = append(allErrs, validateInitializersResult(newInit.Result, fldPath.Child("result"))...)
-		case oldInit.Result != nil:
-			// setting Result implies permanent failure, and all future updates will be prevented
-			allErrs = append(allErrs, ValidateImmutableField(newInit.Result, oldInit.Result, fldPath.Child("result"))...)
-		default:
-			// leaving the result nil is allowed
-		}
-	}
-	return allErrs
-}