diff --git a/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/unstructured/helpers.go b/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/unstructured/helpers.go
new file mode 100644
index 0000000..fc138e7
--- /dev/null
+++ b/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/unstructured/helpers.go
@@ -0,0 +1,451 @@
+/*
+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 unstructured
+
+import (
+	gojson "encoding/json"
+	"fmt"
+	"io"
+	"strings"
+
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/apimachinery/pkg/runtime/schema"
+	"k8s.io/apimachinery/pkg/types"
+	"k8s.io/apimachinery/pkg/util/json"
+)
+
+// NestedFieldCopy returns a deep copy of the value of a nested field.
+// Returns false if the value is missing.
+// No error is returned for a nil field.
+func NestedFieldCopy(obj map[string]interface{}, fields ...string) (interface{}, bool, error) {
+	val, found, err := NestedFieldNoCopy(obj, fields...)
+	if !found || err != nil {
+		return nil, found, err
+	}
+	return runtime.DeepCopyJSONValue(val), true, nil
+}
+
+// NestedFieldNoCopy returns a reference to a nested field.
+// Returns false if value is not found and an error if unable
+// to traverse obj.
+func NestedFieldNoCopy(obj map[string]interface{}, fields ...string) (interface{}, bool, error) {
+	var val interface{} = obj
+
+	for i, field := range fields {
+		if m, ok := val.(map[string]interface{}); ok {
+			val, ok = m[field]
+			if !ok {
+				return nil, false, nil
+			}
+		} else {
+			return nil, false, fmt.Errorf("%v accessor error: %v is of the type %T, expected map[string]interface{}", jsonPath(fields[:i+1]), val, val)
+		}
+	}
+	return val, true, nil
+}
+
+// NestedString returns the string value of a nested field.
+// Returns false if value is not found and an error if not a string.
+func NestedString(obj map[string]interface{}, fields ...string) (string, bool, error) {
+	val, found, err := NestedFieldNoCopy(obj, fields...)
+	if !found || err != nil {
+		return "", found, err
+	}
+	s, ok := val.(string)
+	if !ok {
+		return "", false, fmt.Errorf("%v accessor error: %v is of the type %T, expected string", jsonPath(fields), val, val)
+	}
+	return s, true, nil
+}
+
+// NestedBool returns the bool value of a nested field.
+// Returns false if value is not found and an error if not a bool.
+func NestedBool(obj map[string]interface{}, fields ...string) (bool, bool, error) {
+	val, found, err := NestedFieldNoCopy(obj, fields...)
+	if !found || err != nil {
+		return false, found, err
+	}
+	b, ok := val.(bool)
+	if !ok {
+		return false, false, fmt.Errorf("%v accessor error: %v is of the type %T, expected bool", jsonPath(fields), val, val)
+	}
+	return b, true, nil
+}
+
+// NestedFloat64 returns the float64 value of a nested field.
+// Returns false if value is not found and an error if not a float64.
+func NestedFloat64(obj map[string]interface{}, fields ...string) (float64, bool, error) {
+	val, found, err := NestedFieldNoCopy(obj, fields...)
+	if !found || err != nil {
+		return 0, found, err
+	}
+	f, ok := val.(float64)
+	if !ok {
+		return 0, false, fmt.Errorf("%v accessor error: %v is of the type %T, expected float64", jsonPath(fields), val, val)
+	}
+	return f, true, nil
+}
+
+// NestedInt64 returns the int64 value of a nested field.
+// Returns false if value is not found and an error if not an int64.
+func NestedInt64(obj map[string]interface{}, fields ...string) (int64, bool, error) {
+	val, found, err := NestedFieldNoCopy(obj, fields...)
+	if !found || err != nil {
+		return 0, found, err
+	}
+	i, ok := val.(int64)
+	if !ok {
+		return 0, false, fmt.Errorf("%v accessor error: %v is of the type %T, expected int64", jsonPath(fields), val, val)
+	}
+	return i, true, nil
+}
+
+// NestedStringSlice returns a copy of []string value of a nested field.
+// Returns false if value is not found and an error if not a []interface{} or contains non-string items in the slice.
+func NestedStringSlice(obj map[string]interface{}, fields ...string) ([]string, bool, error) {
+	val, found, err := NestedFieldNoCopy(obj, fields...)
+	if !found || err != nil {
+		return nil, found, err
+	}
+	m, ok := val.([]interface{})
+	if !ok {
+		return nil, false, fmt.Errorf("%v accessor error: %v is of the type %T, expected []interface{}", jsonPath(fields), val, val)
+	}
+	strSlice := make([]string, 0, len(m))
+	for _, v := range m {
+		if str, ok := v.(string); ok {
+			strSlice = append(strSlice, str)
+		} else {
+			return nil, false, fmt.Errorf("%v accessor error: contains non-string key in the slice: %v is of the type %T, expected string", jsonPath(fields), v, v)
+		}
+	}
+	return strSlice, true, nil
+}
+
+// NestedSlice returns a deep copy of []interface{} value of a nested field.
+// Returns false if value is not found and an error if not a []interface{}.
+func NestedSlice(obj map[string]interface{}, fields ...string) ([]interface{}, bool, error) {
+	val, found, err := NestedFieldNoCopy(obj, fields...)
+	if !found || err != nil {
+		return nil, found, err
+	}
+	_, ok := val.([]interface{})
+	if !ok {
+		return nil, false, fmt.Errorf("%v accessor error: %v is of the type %T, expected []interface{}", jsonPath(fields), val, val)
+	}
+	return runtime.DeepCopyJSONValue(val).([]interface{}), true, nil
+}
+
+// NestedStringMap returns a copy of map[string]string value of a nested field.
+// Returns false if value is not found and an error if not a map[string]interface{} or contains non-string values in the map.
+func NestedStringMap(obj map[string]interface{}, fields ...string) (map[string]string, bool, error) {
+	m, found, err := nestedMapNoCopy(obj, fields...)
+	if !found || err != nil {
+		return nil, found, err
+	}
+	strMap := make(map[string]string, len(m))
+	for k, v := range m {
+		if str, ok := v.(string); ok {
+			strMap[k] = str
+		} else {
+			return nil, false, fmt.Errorf("%v accessor error: contains non-string key in the map: %v is of the type %T, expected string", jsonPath(fields), v, v)
+		}
+	}
+	return strMap, true, nil
+}
+
+// NestedMap returns a deep copy of map[string]interface{} value of a nested field.
+// Returns false if value is not found and an error if not a map[string]interface{}.
+func NestedMap(obj map[string]interface{}, fields ...string) (map[string]interface{}, bool, error) {
+	m, found, err := nestedMapNoCopy(obj, fields...)
+	if !found || err != nil {
+		return nil, found, err
+	}
+	return runtime.DeepCopyJSON(m), true, nil
+}
+
+// nestedMapNoCopy returns a map[string]interface{} value of a nested field.
+// Returns false if value is not found and an error if not a map[string]interface{}.
+func nestedMapNoCopy(obj map[string]interface{}, fields ...string) (map[string]interface{}, bool, error) {
+	val, found, err := NestedFieldNoCopy(obj, fields...)
+	if !found || err != nil {
+		return nil, found, err
+	}
+	m, ok := val.(map[string]interface{})
+	if !ok {
+		return nil, false, fmt.Errorf("%v accessor error: %v is of the type %T, expected map[string]interface{}", jsonPath(fields), val, val)
+	}
+	return m, true, nil
+}
+
+// SetNestedField sets the value of a nested field to a deep copy of the value provided.
+// Returns an error if value cannot be set because one of the nesting levels is not a map[string]interface{}.
+func SetNestedField(obj map[string]interface{}, value interface{}, fields ...string) error {
+	return setNestedFieldNoCopy(obj, runtime.DeepCopyJSONValue(value), fields...)
+}
+
+func setNestedFieldNoCopy(obj map[string]interface{}, value interface{}, fields ...string) error {
+	m := obj
+
+	for i, field := range fields[:len(fields)-1] {
+		if val, ok := m[field]; ok {
+			if valMap, ok := val.(map[string]interface{}); ok {
+				m = valMap
+			} else {
+				return fmt.Errorf("value cannot be set because %v is not a map[string]interface{}", jsonPath(fields[:i+1]))
+			}
+		} else {
+			newVal := make(map[string]interface{})
+			m[field] = newVal
+			m = newVal
+		}
+	}
+	m[fields[len(fields)-1]] = value
+	return nil
+}
+
+// SetNestedStringSlice sets the string slice value of a nested field.
+// Returns an error if value cannot be set because one of the nesting levels is not a map[string]interface{}.
+func SetNestedStringSlice(obj map[string]interface{}, value []string, fields ...string) error {
+	m := make([]interface{}, 0, len(value)) // convert []string into []interface{}
+	for _, v := range value {
+		m = append(m, v)
+	}
+	return setNestedFieldNoCopy(obj, m, fields...)
+}
+
+// SetNestedSlice sets the slice value of a nested field.
+// Returns an error if value cannot be set because one of the nesting levels is not a map[string]interface{}.
+func SetNestedSlice(obj map[string]interface{}, value []interface{}, fields ...string) error {
+	return SetNestedField(obj, value, fields...)
+}
+
+// SetNestedStringMap sets the map[string]string value of a nested field.
+// Returns an error if value cannot be set because one of the nesting levels is not a map[string]interface{}.
+func SetNestedStringMap(obj map[string]interface{}, value map[string]string, fields ...string) error {
+	m := make(map[string]interface{}, len(value)) // convert map[string]string into map[string]interface{}
+	for k, v := range value {
+		m[k] = v
+	}
+	return setNestedFieldNoCopy(obj, m, fields...)
+}
+
+// SetNestedMap sets the map[string]interface{} value of a nested field.
+// Returns an error if value cannot be set because one of the nesting levels is not a map[string]interface{}.
+func SetNestedMap(obj map[string]interface{}, value map[string]interface{}, fields ...string) error {
+	return SetNestedField(obj, value, fields...)
+}
+
+// RemoveNestedField removes the nested field from the obj.
+func RemoveNestedField(obj map[string]interface{}, fields ...string) {
+	m := obj
+	for _, field := range fields[:len(fields)-1] {
+		if x, ok := m[field].(map[string]interface{}); ok {
+			m = x
+		} else {
+			return
+		}
+	}
+	delete(m, fields[len(fields)-1])
+}
+
+func getNestedString(obj map[string]interface{}, fields ...string) string {
+	val, found, err := NestedString(obj, fields...)
+	if !found || err != nil {
+		return ""
+	}
+	return val
+}
+
+func jsonPath(fields []string) string {
+	return "." + strings.Join(fields, ".")
+}
+
+func extractOwnerReference(v map[string]interface{}) metav1.OwnerReference {
+	// though this field is a *bool, but when decoded from JSON, it's
+	// unmarshalled as bool.
+	var controllerPtr *bool
+	if controller, found, err := NestedBool(v, "controller"); err == nil && found {
+		controllerPtr = &controller
+	}
+	var blockOwnerDeletionPtr *bool
+	if blockOwnerDeletion, found, err := NestedBool(v, "blockOwnerDeletion"); err == nil && found {
+		blockOwnerDeletionPtr = &blockOwnerDeletion
+	}
+	return metav1.OwnerReference{
+		Kind:               getNestedString(v, "kind"),
+		Name:               getNestedString(v, "name"),
+		APIVersion:         getNestedString(v, "apiVersion"),
+		UID:                types.UID(getNestedString(v, "uid")),
+		Controller:         controllerPtr,
+		BlockOwnerDeletion: blockOwnerDeletionPtr,
+	}
+}
+
+// UnstructuredJSONScheme is capable of converting JSON data into the Unstructured
+// type, which can be used for generic access to objects without a predefined scheme.
+// TODO: move into serializer/json.
+var UnstructuredJSONScheme runtime.Codec = unstructuredJSONScheme{}
+
+type unstructuredJSONScheme struct{}
+
+func (s unstructuredJSONScheme) Decode(data []byte, _ *schema.GroupVersionKind, obj runtime.Object) (runtime.Object, *schema.GroupVersionKind, error) {
+	var err error
+	if obj != nil {
+		err = s.decodeInto(data, obj)
+	} else {
+		obj, err = s.decode(data)
+	}
+
+	if err != nil {
+		return nil, nil, err
+	}
+
+	gvk := obj.GetObjectKind().GroupVersionKind()
+	if len(gvk.Kind) == 0 {
+		return nil, &gvk, runtime.NewMissingKindErr(string(data))
+	}
+
+	return obj, &gvk, nil
+}
+
+func (unstructuredJSONScheme) Encode(obj runtime.Object, w io.Writer) error {
+	switch t := obj.(type) {
+	case *Unstructured:
+		return json.NewEncoder(w).Encode(t.Object)
+	case *UnstructuredList:
+		items := make([]interface{}, 0, len(t.Items))
+		for _, i := range t.Items {
+			items = append(items, i.Object)
+		}
+		listObj := make(map[string]interface{}, len(t.Object)+1)
+		for k, v := range t.Object { // Make a shallow copy
+			listObj[k] = v
+		}
+		listObj["items"] = items
+		return json.NewEncoder(w).Encode(listObj)
+	case *runtime.Unknown:
+		// TODO: Unstructured needs to deal with ContentType.
+		_, err := w.Write(t.Raw)
+		return err
+	default:
+		return json.NewEncoder(w).Encode(t)
+	}
+}
+
+func (s unstructuredJSONScheme) decode(data []byte) (runtime.Object, error) {
+	type detector struct {
+		Items gojson.RawMessage
+	}
+	var det detector
+	if err := json.Unmarshal(data, &det); err != nil {
+		return nil, err
+	}
+
+	if det.Items != nil {
+		list := &UnstructuredList{}
+		err := s.decodeToList(data, list)
+		return list, err
+	}
+
+	// No Items field, so it wasn't a list.
+	unstruct := &Unstructured{}
+	err := s.decodeToUnstructured(data, unstruct)
+	return unstruct, err
+}
+
+func (s unstructuredJSONScheme) decodeInto(data []byte, obj runtime.Object) error {
+	switch x := obj.(type) {
+	case *Unstructured:
+		return s.decodeToUnstructured(data, x)
+	case *UnstructuredList:
+		return s.decodeToList(data, x)
+	case *runtime.VersionedObjects:
+		o, err := s.decode(data)
+		if err == nil {
+			x.Objects = []runtime.Object{o}
+		}
+		return err
+	default:
+		return json.Unmarshal(data, x)
+	}
+}
+
+func (unstructuredJSONScheme) decodeToUnstructured(data []byte, unstruct *Unstructured) error {
+	m := make(map[string]interface{})
+	if err := json.Unmarshal(data, &m); err != nil {
+		return err
+	}
+
+	unstruct.Object = m
+
+	return nil
+}
+
+func (s unstructuredJSONScheme) decodeToList(data []byte, list *UnstructuredList) error {
+	type decodeList struct {
+		Items []gojson.RawMessage
+	}
+
+	var dList decodeList
+	if err := json.Unmarshal(data, &dList); err != nil {
+		return err
+	}
+
+	if err := json.Unmarshal(data, &list.Object); err != nil {
+		return err
+	}
+
+	// For typed lists, e.g., a PodList, API server doesn't set each item's
+	// APIVersion and Kind. We need to set it.
+	listAPIVersion := list.GetAPIVersion()
+	listKind := list.GetKind()
+	itemKind := strings.TrimSuffix(listKind, "List")
+
+	delete(list.Object, "items")
+	list.Items = make([]Unstructured, 0, len(dList.Items))
+	for _, i := range dList.Items {
+		unstruct := &Unstructured{}
+		if err := s.decodeToUnstructured([]byte(i), unstruct); err != nil {
+			return err
+		}
+		// This is hacky. Set the item's Kind and APIVersion to those inferred
+		// from the List.
+		if len(unstruct.GetKind()) == 0 && len(unstruct.GetAPIVersion()) == 0 {
+			unstruct.SetKind(itemKind)
+			unstruct.SetAPIVersion(listAPIVersion)
+		}
+		list.Items = append(list.Items, *unstruct)
+	}
+	return nil
+}
+
+type JSONFallbackEncoder struct {
+	runtime.Encoder
+}
+
+func (c JSONFallbackEncoder) Encode(obj runtime.Object, w io.Writer) error {
+	err := c.Encoder.Encode(obj, w)
+	if runtime.IsNotRegisteredError(err) {
+		switch obj.(type) {
+		case *Unstructured, *UnstructuredList:
+			return UnstructuredJSONScheme.Encode(obj, w)
+		}
+	}
+	return err
+}