build source

vendor/k8s.io/apimachinery/pkg/api/equality/semantic.go

@@ -0,0 +1,49 @@
+/*
+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 equality
+
+import (
+	"k8s.io/apimachinery/pkg/api/resource"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/conversion"
+	"k8s.io/apimachinery/pkg/fields"
+	"k8s.io/apimachinery/pkg/labels"
+)
+
+// Semantic can do semantic deep equality checks for api objects.
+// Example: apiequality.Semantic.DeepEqual(aPod, aPodWithNonNilButEmptyMaps) == true
+var Semantic = conversion.EqualitiesOrDie(
+	func(a, b resource.Quantity) bool {
+		// Ignore formatting, only care that numeric value stayed the same.
+		// TODO: if we decide it's important, it should be safe to start comparing the format.
+		//
+		// Uninitialized quantities are equivalent to 0 quantities.
+		return a.Cmp(b) == 0
+	},
+	func(a, b metav1.MicroTime) bool {
+		return a.UTC() == b.UTC()
+	},
+	func(a, b metav1.Time) bool {
+		return a.UTC() == b.UTC()
+	},
+	func(a, b labels.Selector) bool {
+		return a.String() == b.String()
+	},
+	func(a, b fields.Selector) bool {
+		return a.String() == b.String()
+	},
+)

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

@@ -0,0 +1,16 @@
+# See the OWNERS docs at https://go.k8s.io/owners
+
+reviewers:
+  - thockin
+  - smarterclayton
+  - wojtek-t
+  - deads2k
+  - derekwaynecarr
+  - caesarxuchao
+  - mikedanese
+  - liggitt
+  - saad-ali
+  - janetkuo
+  - tallclair
+  - dims
+  - cjcullen

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

@@ -0,0 +1,18 @@
+/*
+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 errors provides detailed error types for api field validation.
+package errors

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

@@ -0,0 +1,865 @@
+/*
+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 errors
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"net/http"
+	"reflect"
+	"strings"
+
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/apimachinery/pkg/runtime/schema"
+	"k8s.io/apimachinery/pkg/util/validation/field"
+)
+
+// StatusError is an error intended for consumption by a REST API server; it can also be
+// reconstructed by clients from a REST response. Public to allow easy type switches.
+type StatusError struct {
+	ErrStatus metav1.Status
+}
+
+// APIStatus is exposed by errors that can be converted to an api.Status object
+// for finer grained details.
+type APIStatus interface {
+	Status() metav1.Status
+}
+
+var _ error = &StatusError{}
+
+var knownReasons = map[metav1.StatusReason]struct{}{
+	// metav1.StatusReasonUnknown : {}
+	metav1.StatusReasonUnauthorized:          {},
+	metav1.StatusReasonForbidden:             {},
+	metav1.StatusReasonNotFound:              {},
+	metav1.StatusReasonAlreadyExists:         {},
+	metav1.StatusReasonConflict:              {},
+	metav1.StatusReasonGone:                  {},
+	metav1.StatusReasonInvalid:               {},
+	metav1.StatusReasonServerTimeout:         {},
+	metav1.StatusReasonStoreReadError:        {},
+	metav1.StatusReasonTimeout:               {},
+	metav1.StatusReasonTooManyRequests:       {},
+	metav1.StatusReasonBadRequest:            {},
+	metav1.StatusReasonMethodNotAllowed:      {},
+	metav1.StatusReasonNotAcceptable:         {},
+	metav1.StatusReasonRequestEntityTooLarge: {},
+	metav1.StatusReasonUnsupportedMediaType:  {},
+	metav1.StatusReasonInternalError:         {},
+	metav1.StatusReasonExpired:               {},
+	metav1.StatusReasonServiceUnavailable:    {},
+}
+
+// Error implements the Error interface.
+func (e *StatusError) Error() string {
+	return e.ErrStatus.Message
+}
+
+// Status allows access to e's status without having to know the detailed workings
+// of StatusError.
+func (e *StatusError) Status() metav1.Status {
+	return e.ErrStatus
+}
+
+// DebugError reports extended info about the error to debug output.
+func (e *StatusError) DebugError() (string, []interface{}) {
+	if out, err := json.MarshalIndent(e.ErrStatus, "", "  "); err == nil {
+		return "server response object: %s", []interface{}{string(out)}
+	}
+	return "server response object: %#v", []interface{}{e.ErrStatus}
+}
+
+// HasStatusCause returns true if the provided error has a details cause
+// with the provided type name.
+// It supports wrapped errors and returns false when the error is nil.
+func HasStatusCause(err error, name metav1.CauseType) bool {
+	_, ok := StatusCause(err, name)
+	return ok
+}
+
+// StatusCause returns the named cause from the provided error if it exists and
+// the error unwraps to the type APIStatus. Otherwise it returns false.
+func StatusCause(err error, name metav1.CauseType) (metav1.StatusCause, bool) {
+	status, ok := err.(APIStatus)
+	if (ok || errors.As(err, &status)) && status.Status().Details != nil {
+		for _, cause := range status.Status().Details.Causes {
+			if cause.Type == name {
+				return cause, true
+			}
+		}
+	}
+	return metav1.StatusCause{}, false
+}
+
+// UnexpectedObjectError can be returned by FromObject if it's passed a non-status object.
+type UnexpectedObjectError struct {
+	Object runtime.Object
+}
+
+// Error returns an error message describing 'u'.
+func (u *UnexpectedObjectError) Error() string {
+	return fmt.Sprintf("unexpected object: %v", u.Object)
+}
+
+// FromObject generates an StatusError from an metav1.Status, if that is the type of obj; otherwise,
+// returns an UnexpecteObjectError.
+func FromObject(obj runtime.Object) error {
+	switch t := obj.(type) {
+	case *metav1.Status:
+		return &StatusError{ErrStatus: *t}
+	case runtime.Unstructured:
+		var status metav1.Status
+		obj := t.UnstructuredContent()
+		if !reflect.DeepEqual(obj["kind"], "Status") {
+			break
+		}
+		if err := runtime.DefaultUnstructuredConverter.FromUnstructured(t.UnstructuredContent(), &status); err != nil {
+			return err
+		}
+		if status.APIVersion != "v1" && status.APIVersion != "meta.k8s.io/v1" {
+			break
+		}
+		return &StatusError{ErrStatus: status}
+	}
+	return &UnexpectedObjectError{obj}
+}
+
+// NewNotFound returns a new error which indicates that the resource of the kind and the name was not found.
+func NewNotFound(qualifiedResource schema.GroupResource, name string) *StatusError {
+	return &StatusError{metav1.Status{
+		Status: metav1.StatusFailure,
+		Code:   http.StatusNotFound,
+		Reason: metav1.StatusReasonNotFound,
+		Details: &metav1.StatusDetails{
+			Group: qualifiedResource.Group,
+			Kind:  qualifiedResource.Resource,
+			Name:  name,
+		},
+		Message: fmt.Sprintf("%s %q not found", qualifiedResource.String(), name),
+	}}
+}
+
+// NewAlreadyExists returns an error indicating the item requested exists by that identifier.
+func NewAlreadyExists(qualifiedResource schema.GroupResource, name string) *StatusError {
+	return &StatusError{metav1.Status{
+		Status: metav1.StatusFailure,
+		Code:   http.StatusConflict,
+		Reason: metav1.StatusReasonAlreadyExists,
+		Details: &metav1.StatusDetails{
+			Group: qualifiedResource.Group,
+			Kind:  qualifiedResource.Resource,
+			Name:  name,
+		},
+		Message: fmt.Sprintf("%s %q already exists", qualifiedResource.String(), name),
+	}}
+}
+
+// NewGenerateNameConflict returns an error indicating the server
+// was not able to generate a valid name for a resource.
+func NewGenerateNameConflict(qualifiedResource schema.GroupResource, name string, retryAfterSeconds int) *StatusError {
+	return &StatusError{metav1.Status{
+		Status: metav1.StatusFailure,
+		Code:   http.StatusConflict,
+		Reason: metav1.StatusReasonAlreadyExists,
+		Details: &metav1.StatusDetails{
+			Group:             qualifiedResource.Group,
+			Kind:              qualifiedResource.Resource,
+			Name:              name,
+			RetryAfterSeconds: int32(retryAfterSeconds),
+		},
+		Message: fmt.Sprintf(
+			"%s %q already exists, the server was not able to generate a unique name for the object",
+			qualifiedResource.String(), name),
+	}}
+}
+
+// NewUnauthorized returns an error indicating the client is not authorized to perform the requested
+// action.
+func NewUnauthorized(reason string) *StatusError {
+	message := reason
+	if len(message) == 0 {
+		message = "not authorized"
+	}
+	return &StatusError{metav1.Status{
+		Status:  metav1.StatusFailure,
+		Code:    http.StatusUnauthorized,
+		Reason:  metav1.StatusReasonUnauthorized,
+		Message: message,
+	}}
+}
+
+// NewForbidden returns an error indicating the requested action was forbidden
+func NewForbidden(qualifiedResource schema.GroupResource, name string, err error) *StatusError {
+	var message string
+	if qualifiedResource.Empty() {
+		message = fmt.Sprintf("forbidden: %v", err)
+	} else if name == "" {
+		message = fmt.Sprintf("%s is forbidden: %v", qualifiedResource.String(), err)
+	} else {
+		message = fmt.Sprintf("%s %q is forbidden: %v", qualifiedResource.String(), name, err)
+	}
+	return &StatusError{metav1.Status{
+		Status: metav1.StatusFailure,
+		Code:   http.StatusForbidden,
+		Reason: metav1.StatusReasonForbidden,
+		Details: &metav1.StatusDetails{
+			Group: qualifiedResource.Group,
+			Kind:  qualifiedResource.Resource,
+			Name:  name,
+		},
+		Message: message,
+	}}
+}
+
+// NewConflict returns an error indicating the item can't be updated as provided.
+func NewConflict(qualifiedResource schema.GroupResource, name string, err error) *StatusError {
+	return &StatusError{metav1.Status{
+		Status: metav1.StatusFailure,
+		Code:   http.StatusConflict,
+		Reason: metav1.StatusReasonConflict,
+		Details: &metav1.StatusDetails{
+			Group: qualifiedResource.Group,
+			Kind:  qualifiedResource.Resource,
+			Name:  name,
+		},
+		Message: fmt.Sprintf("Operation cannot be fulfilled on %s %q: %v", qualifiedResource.String(), name, err),
+	}}
+}
+
+// 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.
+//
+// Deprecated: Please use NewResourceExpired instead.
+func NewGone(message string) *StatusError {
+	return &StatusError{metav1.Status{
+		Status:  metav1.StatusFailure,
+		Code:    http.StatusGone,
+		Reason:  metav1.StatusReasonGone,
+		Message: message,
+	}}
+}
+
+// NewResourceExpired creates an error that indicates that the requested resource content has expired from
+// the server (usually due to a resourceVersion that is too old).
+func NewResourceExpired(message string) *StatusError {
+	return &StatusError{metav1.Status{
+		Status:  metav1.StatusFailure,
+		Code:    http.StatusGone,
+		Reason:  metav1.StatusReasonExpired,
+		Message: message,
+	}}
+}
+
+// NewInvalid returns an error indicating the item is invalid and cannot be processed.
+func NewInvalid(qualifiedKind schema.GroupKind, name string, errs field.ErrorList) *StatusError {
+	causes := make([]metav1.StatusCause, 0, len(errs))
+	for i := range errs {
+		err := errs[i]
+		causes = append(causes, metav1.StatusCause{
+			Type:    metav1.CauseType(err.Type),
+			Message: err.ErrorBody(),
+			Field:   err.Field,
+		})
+	}
+	err := &StatusError{metav1.Status{
+		Status: metav1.StatusFailure,
+		Code:   http.StatusUnprocessableEntity,
+		Reason: metav1.StatusReasonInvalid,
+		Details: &metav1.StatusDetails{
+			Group:  qualifiedKind.Group,
+			Kind:   qualifiedKind.Kind,
+			Name:   name,
+			Causes: causes,
+		},
+	}}
+	aggregatedErrs := errs.ToAggregate()
+	if aggregatedErrs == nil {
+		err.ErrStatus.Message = fmt.Sprintf("%s %q is invalid", qualifiedKind.String(), name)
+	} else {
+		err.ErrStatus.Message = fmt.Sprintf("%s %q is invalid: %v", qualifiedKind.String(), name, aggregatedErrs)
+	}
+	return err
+}
+
+// NewBadRequest creates an error that indicates that the request is invalid and can not be processed.
+func NewBadRequest(reason string) *StatusError {
+	return &StatusError{metav1.Status{
+		Status:  metav1.StatusFailure,
+		Code:    http.StatusBadRequest,
+		Reason:  metav1.StatusReasonBadRequest,
+		Message: reason,
+	}}
+}
+
+// NewTooManyRequests creates an error that indicates that the client must try again later because
+// the specified endpoint is not accepting requests. More specific details should be provided
+// if client should know why the failure was limited.
+func NewTooManyRequests(message string, retryAfterSeconds int) *StatusError {
+	return &StatusError{metav1.Status{
+		Status:  metav1.StatusFailure,
+		Code:    http.StatusTooManyRequests,
+		Reason:  metav1.StatusReasonTooManyRequests,
+		Message: message,
+		Details: &metav1.StatusDetails{
+			RetryAfterSeconds: int32(retryAfterSeconds),
+		},
+	}}
+}
+
+// NewServiceUnavailable creates an error that indicates that the requested service is unavailable.
+func NewServiceUnavailable(reason string) *StatusError {
+	return &StatusError{metav1.Status{
+		Status:  metav1.StatusFailure,
+		Code:    http.StatusServiceUnavailable,
+		Reason:  metav1.StatusReasonServiceUnavailable,
+		Message: reason,
+	}}
+}
+
+// NewMethodNotSupported returns an error indicating the requested action is not supported on this kind.
+func NewMethodNotSupported(qualifiedResource schema.GroupResource, action string) *StatusError {
+	return &StatusError{metav1.Status{
+		Status: metav1.StatusFailure,
+		Code:   http.StatusMethodNotAllowed,
+		Reason: metav1.StatusReasonMethodNotAllowed,
+		Details: &metav1.StatusDetails{
+			Group: qualifiedResource.Group,
+			Kind:  qualifiedResource.Resource,
+		},
+		Message: fmt.Sprintf("%s is not supported on resources of kind %q", action, qualifiedResource.String()),
+	}}
+}
+
+// NewServerTimeout returns an error indicating the requested action could not be completed due to a
+// transient error, and the client should try again.
+func NewServerTimeout(qualifiedResource schema.GroupResource, operation string, retryAfterSeconds int) *StatusError {
+	return &StatusError{metav1.Status{
+		Status: metav1.StatusFailure,
+		Code:   http.StatusInternalServerError,
+		Reason: metav1.StatusReasonServerTimeout,
+		Details: &metav1.StatusDetails{
+			Group:             qualifiedResource.Group,
+			Kind:              qualifiedResource.Resource,
+			Name:              operation,
+			RetryAfterSeconds: int32(retryAfterSeconds),
+		},
+		Message: fmt.Sprintf("The %s operation against %s could not be completed at this time, please try again.", operation, qualifiedResource.String()),
+	}}
+}
+
+// NewServerTimeoutForKind should not exist.  Server timeouts happen when accessing resources, the Kind is just what we
+// happened to be looking at when the request failed.  This delegates to keep code sane, but we should work towards removing this.
+func NewServerTimeoutForKind(qualifiedKind schema.GroupKind, operation string, retryAfterSeconds int) *StatusError {
+	return NewServerTimeout(schema.GroupResource{Group: qualifiedKind.Group, Resource: qualifiedKind.Kind}, operation, retryAfterSeconds)
+}
+
+// NewInternalError returns an error indicating the item is invalid and cannot be processed.
+func NewInternalError(err error) *StatusError {
+	return &StatusError{metav1.Status{
+		Status: metav1.StatusFailure,
+		Code:   http.StatusInternalServerError,
+		Reason: metav1.StatusReasonInternalError,
+		Details: &metav1.StatusDetails{
+			Causes: []metav1.StatusCause{{Message: err.Error()}},
+		},
+		Message: fmt.Sprintf("Internal error occurred: %v", err),
+	}}
+}
+
+// NewTimeoutError returns an error indicating that a timeout occurred before the request
+// could be completed.  Clients may retry, but the operation may still complete.
+func NewTimeoutError(message string, retryAfterSeconds int) *StatusError {
+	return &StatusError{metav1.Status{
+		Status:  metav1.StatusFailure,
+		Code:    http.StatusGatewayTimeout,
+		Reason:  metav1.StatusReasonTimeout,
+		Message: fmt.Sprintf("Timeout: %s", message),
+		Details: &metav1.StatusDetails{
+			RetryAfterSeconds: int32(retryAfterSeconds),
+		},
+	}}
+}
+
+// NewTooManyRequestsError returns an error indicating that the request was rejected because
+// the server has received too many requests. Client should wait and retry. But if the request
+// is perishable, then the client should not retry the request.
+func NewTooManyRequestsError(message string) *StatusError {
+	return &StatusError{metav1.Status{
+		Status:  metav1.StatusFailure,
+		Code:    http.StatusTooManyRequests,
+		Reason:  metav1.StatusReasonTooManyRequests,
+		Message: fmt.Sprintf("Too many requests: %s", message),
+	}}
+}
+
+// NewRequestEntityTooLargeError returns an error indicating that the request
+// entity was too large.
+func NewRequestEntityTooLargeError(message string) *StatusError {
+	return &StatusError{metav1.Status{
+		Status:  metav1.StatusFailure,
+		Code:    http.StatusRequestEntityTooLarge,
+		Reason:  metav1.StatusReasonRequestEntityTooLarge,
+		Message: fmt.Sprintf("Request entity too large: %s", message),
+	}}
+}
+
+// NewGenericServerResponse returns a new error for server responses that are not in a recognizable form.
+func NewGenericServerResponse(code int, verb string, qualifiedResource schema.GroupResource, name, serverMessage string, retryAfterSeconds int, isUnexpectedResponse bool) *StatusError {
+	reason := metav1.StatusReasonUnknown
+	message := fmt.Sprintf("the server responded with the status code %d but did not return more information", code)
+	switch code {
+	case http.StatusConflict:
+		if verb == http.MethodPost {
+			reason = metav1.StatusReasonAlreadyExists
+		} else {
+			reason = metav1.StatusReasonConflict
+		}
+		message = "the server reported a conflict"
+	case http.StatusNotFound:
+		reason = metav1.StatusReasonNotFound
+		message = "the server could not find the requested resource"
+	case http.StatusBadRequest:
+		reason = metav1.StatusReasonBadRequest
+		message = "the server rejected our request for an unknown reason"
+	case http.StatusUnauthorized:
+		reason = metav1.StatusReasonUnauthorized
+		message = "the server has asked for the client to provide credentials"
+	case http.StatusForbidden:
+		reason = metav1.StatusReasonForbidden
+		// the server message has details about who is trying to perform what action.  Keep its message.
+		message = serverMessage
+	case http.StatusNotAcceptable:
+		reason = metav1.StatusReasonNotAcceptable
+		// the server message has details about what types are acceptable
+		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
+		message = serverMessage
+	case http.StatusMethodNotAllowed:
+		reason = metav1.StatusReasonMethodNotAllowed
+		message = "the server does not allow this method on the requested resource"
+	case http.StatusUnprocessableEntity:
+		reason = metav1.StatusReasonInvalid
+		message = "the server rejected our request due to an error in our request"
+	case http.StatusServiceUnavailable:
+		reason = metav1.StatusReasonServiceUnavailable
+		message = "the server is currently unable to handle the request"
+	case http.StatusGatewayTimeout:
+		reason = metav1.StatusReasonTimeout
+		message = "the server was unable to return a response in the time allotted, but may still be processing the request"
+	case http.StatusTooManyRequests:
+		reason = metav1.StatusReasonTooManyRequests
+		message = "the server has received too many requests and has asked us to try again later"
+	default:
+		if code >= 500 {
+			reason = metav1.StatusReasonInternalError
+			message = fmt.Sprintf("an error on the server (%q) has prevented the request from succeeding", serverMessage)
+		}
+	}
+	switch {
+	case !qualifiedResource.Empty() && len(name) > 0:
+		message = fmt.Sprintf("%s (%s %s %s)", message, strings.ToLower(verb), qualifiedResource.String(), name)
+	case !qualifiedResource.Empty():
+		message = fmt.Sprintf("%s (%s %s)", message, strings.ToLower(verb), qualifiedResource.String())
+	}
+	var causes []metav1.StatusCause
+	if isUnexpectedResponse {
+		causes = []metav1.StatusCause{
+			{
+				Type:    metav1.CauseTypeUnexpectedServerResponse,
+				Message: serverMessage,
+			},
+		}
+	} else {
+		causes = nil
+	}
+	return &StatusError{metav1.Status{
+		Status: metav1.StatusFailure,
+		Code:   int32(code),
+		Reason: reason,
+		Details: &metav1.StatusDetails{
+			Group: qualifiedResource.Group,
+			Kind:  qualifiedResource.Resource,
+			Name:  name,
+
+			Causes:            causes,
+			RetryAfterSeconds: int32(retryAfterSeconds),
+		},
+		Message: message,
+	}}
+}
+
+// IsNotFound returns true if the specified error was created by NewNotFound.
+// It supports wrapped errors and returns false when the error is nil.
+func IsNotFound(err error) bool {
+	reason, code := reasonAndCodeForError(err)
+	if reason == metav1.StatusReasonNotFound {
+		return true
+	}
+	if _, ok := knownReasons[reason]; !ok && code == http.StatusNotFound {
+		return true
+	}
+	return false
+}
+
+// IsAlreadyExists determines if the err is an error which indicates that a specified resource already exists.
+// It supports wrapped errors and returns false when the error is nil.
+func IsAlreadyExists(err error) bool {
+	return ReasonForError(err) == metav1.StatusReasonAlreadyExists
+}
+
+// IsConflict determines if the err is an error which indicates the provided update conflicts.
+// It supports wrapped errors and returns false when the error is nil.
+func IsConflict(err error) bool {
+	reason, code := reasonAndCodeForError(err)
+	if reason == metav1.StatusReasonConflict {
+		return true
+	}
+	if _, ok := knownReasons[reason]; !ok && code == http.StatusConflict {
+		return true
+	}
+	return false
+}
+
+// IsInvalid determines if the err is an error which indicates the provided resource is not valid.
+// It supports wrapped errors and returns false when the error is nil.
+func IsInvalid(err error) bool {
+	reason, code := reasonAndCodeForError(err)
+	if reason == metav1.StatusReasonInvalid {
+		return true
+	}
+	if _, ok := knownReasons[reason]; !ok && code == http.StatusUnprocessableEntity {
+		return true
+	}
+	return false
+}
+
+// IsGone is true if the error indicates the requested resource is no longer available.
+// It supports wrapped errors and returns false when the error is nil.
+func IsGone(err error) bool {
+	reason, code := reasonAndCodeForError(err)
+	if reason == metav1.StatusReasonGone {
+		return true
+	}
+	if _, ok := knownReasons[reason]; !ok && code == http.StatusGone {
+		return true
+	}
+	return false
+}
+
+// IsResourceExpired is true if the error indicates the resource has expired and the current action is
+// no longer possible.
+// It supports wrapped errors and returns false when the error is nil.
+func IsResourceExpired(err error) bool {
+	return ReasonForError(err) == metav1.StatusReasonExpired
+}
+
+// IsNotAcceptable determines if err is an error which indicates that the request failed due to an invalid Accept header
+// It supports wrapped errors and returns false when the error is nil.
+func IsNotAcceptable(err error) bool {
+	reason, code := reasonAndCodeForError(err)
+	if reason == metav1.StatusReasonNotAcceptable {
+		return true
+	}
+	if _, ok := knownReasons[reason]; !ok && code == http.StatusNotAcceptable {
+		return true
+	}
+	return false
+}
+
+// IsUnsupportedMediaType determines if err is an error which indicates that the request failed due to an invalid Content-Type header
+// It supports wrapped errors and returns false when the error is nil.
+func IsUnsupportedMediaType(err error) bool {
+	reason, code := reasonAndCodeForError(err)
+	if reason == metav1.StatusReasonUnsupportedMediaType {
+		return true
+	}
+	if _, ok := knownReasons[reason]; !ok && code == http.StatusUnsupportedMediaType {
+		return true
+	}
+	return false
+}
+
+// IsMethodNotSupported determines if the err is an error which indicates the provided action could not
+// be performed because it is not supported by the server.
+// It supports wrapped errors and returns false when the error is nil.
+func IsMethodNotSupported(err error) bool {
+	reason, code := reasonAndCodeForError(err)
+	if reason == metav1.StatusReasonMethodNotAllowed {
+		return true
+	}
+	if _, ok := knownReasons[reason]; !ok && code == http.StatusMethodNotAllowed {
+		return true
+	}
+	return false
+}
+
+// IsServiceUnavailable is true if the error indicates the underlying service is no longer available.
+// It supports wrapped errors and returns false when the error is nil.
+func IsServiceUnavailable(err error) bool {
+	reason, code := reasonAndCodeForError(err)
+	if reason == metav1.StatusReasonServiceUnavailable {
+		return true
+	}
+	if _, ok := knownReasons[reason]; !ok && code == http.StatusServiceUnavailable {
+		return true
+	}
+	return false
+}
+
+// IsBadRequest determines if err is an error which indicates that the request is invalid.
+// It supports wrapped errors and returns false when the error is nil.
+func IsBadRequest(err error) bool {
+	reason, code := reasonAndCodeForError(err)
+	if reason == metav1.StatusReasonBadRequest {
+		return true
+	}
+	if _, ok := knownReasons[reason]; !ok && code == http.StatusBadRequest {
+		return true
+	}
+	return false
+}
+
+// IsUnauthorized determines if err is an error which indicates that the request is unauthorized and
+// requires authentication by the user.
+// It supports wrapped errors and returns false when the error is nil.
+func IsUnauthorized(err error) bool {
+	reason, code := reasonAndCodeForError(err)
+	if reason == metav1.StatusReasonUnauthorized {
+		return true
+	}
+	if _, ok := knownReasons[reason]; !ok && code == http.StatusUnauthorized {
+		return true
+	}
+	return false
+}
+
+// IsForbidden determines if err is an error which indicates that the request is forbidden and cannot
+// be completed as requested.
+// It supports wrapped errors and returns false when the error is nil.
+func IsForbidden(err error) bool {
+	reason, code := reasonAndCodeForError(err)
+	if reason == metav1.StatusReasonForbidden {
+		return true
+	}
+	if _, ok := knownReasons[reason]; !ok && code == http.StatusForbidden {
+		return true
+	}
+	return false
+}
+
+// IsTimeout determines if err is an error which indicates that request times out due to long
+// processing.
+// It supports wrapped errors and returns false when the error is nil.
+func IsTimeout(err error) bool {
+	reason, code := reasonAndCodeForError(err)
+	if reason == metav1.StatusReasonTimeout {
+		return true
+	}
+	if _, ok := knownReasons[reason]; !ok && code == http.StatusGatewayTimeout {
+		return true
+	}
+	return false
+}
+
+// IsServerTimeout determines if err is an error which indicates that the request needs to be retried
+// by the client.
+// It supports wrapped errors and returns false when the error is nil.
+func IsServerTimeout(err error) bool {
+	// do not check the status code, because no https status code exists that can
+	// be scoped to retryable timeouts.
+	return ReasonForError(err) == metav1.StatusReasonServerTimeout
+}
+
+// IsInternalError determines if err is an error which indicates an internal server error.
+// It supports wrapped errors and returns false when the error is nil.
+func IsInternalError(err error) bool {
+	reason, code := reasonAndCodeForError(err)
+	if reason == metav1.StatusReasonInternalError {
+		return true
+	}
+	if _, ok := knownReasons[reason]; !ok && code == http.StatusInternalServerError {
+		return true
+	}
+	return false
+}
+
+// IsTooManyRequests determines if err is an error which indicates that there are too many requests
+// that the server cannot handle.
+// It supports wrapped errors and returns false when the error is nil.
+func IsTooManyRequests(err error) bool {
+	reason, code := reasonAndCodeForError(err)
+	if reason == metav1.StatusReasonTooManyRequests {
+		return true
+	}
+
+	// IsTooManyRequests' checking of code predates the checking of the code in
+	// the other Is* functions. In order to maintain backward compatibility, this
+	// does not check that the reason is unknown.
+	if code == http.StatusTooManyRequests {
+		return true
+	}
+	return false
+}
+
+// IsRequestEntityTooLargeError determines if err is an error which indicates
+// the request entity is too large.
+// It supports wrapped errors and returns false when the error is nil.
+func IsRequestEntityTooLargeError(err error) bool {
+	reason, code := reasonAndCodeForError(err)
+	if reason == metav1.StatusReasonRequestEntityTooLarge {
+		return true
+	}
+
+	// IsRequestEntityTooLargeError's checking of code predates the checking of
+	// the code in the other Is* functions. In order to maintain backward
+	// compatibility, this does not check that the reason is unknown.
+	if code == http.StatusRequestEntityTooLarge {
+		return true
+	}
+	return false
+}
+
+// IsUnexpectedServerError returns true if the server response was not in the expected API format,
+// and may be the result of another HTTP actor.
+// It supports wrapped errors and returns false when the error is nil.
+func IsUnexpectedServerError(err error) bool {
+	status, ok := err.(APIStatus)
+	if (ok || errors.As(err, &status)) && status.Status().Details != nil {
+		for _, cause := range status.Status().Details.Causes {
+			if cause.Type == metav1.CauseTypeUnexpectedServerResponse {
+				return true
+			}
+		}
+	}
+	return false
+}
+
+// IsUnexpectedObjectError determines if err is due to an unexpected object from the master.
+// It supports wrapped errors and returns false when the error is nil.
+func IsUnexpectedObjectError(err error) bool {
+	uoe, ok := err.(*UnexpectedObjectError)
+	return err != nil && (ok || errors.As(err, &uoe))
+}
+
+// IsStoreReadError determines if err is due to either failure to transform the
+// data from the storage, or failure to decode the object appropriately.
+func IsStoreReadError(err error) bool {
+	return ReasonForError(err) == metav1.StatusReasonStoreReadError
+}
+
+// SuggestsClientDelay returns true if this error suggests a client delay as well as the
+// suggested seconds to wait, or false if the error does not imply a wait. It does not
+// address whether the error *should* be retried, since some errors (like a 3xx) may
+// request delay without retry.
+// It supports wrapped errors and returns false when the error is nil.
+func SuggestsClientDelay(err error) (int, bool) {
+	t, ok := err.(APIStatus)
+	if (ok || errors.As(err, &t)) && t.Status().Details != nil {
+		switch t.Status().Reason {
+		// this StatusReason explicitly requests the caller to delay the action
+		case metav1.StatusReasonServerTimeout:
+			return int(t.Status().Details.RetryAfterSeconds), true
+		}
+		// If the client requests that we retry after a certain number of seconds
+		if t.Status().Details.RetryAfterSeconds > 0 {
+			return int(t.Status().Details.RetryAfterSeconds), true
+		}
+	}
+	return 0, false
+}
+
+// ReasonForError returns the HTTP status for a particular error.
+// It supports wrapped errors and returns StatusReasonUnknown when
+// the error is nil or doesn't have a status.
+func ReasonForError(err error) metav1.StatusReason {
+	if status, ok := err.(APIStatus); ok || errors.As(err, &status) {
+		return status.Status().Reason
+	}
+	return metav1.StatusReasonUnknown
+}
+
+func reasonAndCodeForError(err error) (metav1.StatusReason, int32) {
+	if status, ok := err.(APIStatus); ok || errors.As(err, &status) {
+		return status.Status().Reason, status.Status().Code
+	}
+	return metav1.StatusReasonUnknown, 0
+}
+
+// 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

@@ -0,0 +1,15 @@
+# See the OWNERS docs at https://go.k8s.io/owners
+
+reviewers:
+  - thockin
+  - smarterclayton
+  - wojtek-t
+  - deads2k
+  - derekwaynecarr
+  - caesarxuchao
+  - mikedanese
+  - liggitt
+  - janetkuo
+  - dims
+emeritus_reviewers:
+  - ncdc

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

@@ -0,0 +1,119 @@
+/*
+Copyright 2020 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 meta
+
+import (
+	"time"
+
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+)
+
+// SetStatusCondition sets the corresponding condition in conditions to newCondition and returns true
+// if the conditions are changed by this call.
+// conditions must be non-nil.
+//  1. if the condition of the specified type already exists (all fields of the existing condition are updated to
+//     newCondition, LastTransitionTime is set to now if the new status differs from the old status)
+//  2. if a condition of the specified type does not exist (LastTransitionTime is set to now() if unset, and newCondition is appended)
+func SetStatusCondition(conditions *[]metav1.Condition, newCondition metav1.Condition) (changed bool) {
+	if conditions == nil {
+		return false
+	}
+	existingCondition := FindStatusCondition(*conditions, newCondition.Type)
+	if existingCondition == nil {
+		if newCondition.LastTransitionTime.IsZero() {
+			newCondition.LastTransitionTime = metav1.NewTime(time.Now())
+		}
+		*conditions = append(*conditions, newCondition)
+		return true
+	}
+
+	if existingCondition.Status != newCondition.Status {
+		existingCondition.Status = newCondition.Status
+		if !newCondition.LastTransitionTime.IsZero() {
+			existingCondition.LastTransitionTime = newCondition.LastTransitionTime
+		} else {
+			existingCondition.LastTransitionTime = metav1.NewTime(time.Now())
+		}
+		changed = true
+	}
+
+	if existingCondition.Reason != newCondition.Reason {
+		existingCondition.Reason = newCondition.Reason
+		changed = true
+	}
+	if existingCondition.Message != newCondition.Message {
+		existingCondition.Message = newCondition.Message
+		changed = true
+	}
+	if existingCondition.ObservedGeneration != newCondition.ObservedGeneration {
+		existingCondition.ObservedGeneration = newCondition.ObservedGeneration
+		changed = true
+	}
+
+	return changed
+}
+
+// RemoveStatusCondition removes the corresponding conditionType from conditions if present. Returns
+// true if it was present and got removed.
+// conditions must be non-nil.
+func RemoveStatusCondition(conditions *[]metav1.Condition, conditionType string) (removed bool) {
+	if conditions == nil || len(*conditions) == 0 {
+		return false
+	}
+	newConditions := make([]metav1.Condition, 0, len(*conditions)-1)
+	for _, condition := range *conditions {
+		if condition.Type != conditionType {
+			newConditions = append(newConditions, condition)
+		}
+	}
+
+	removed = len(*conditions) != len(newConditions)
+	*conditions = newConditions
+
+	return removed
+}
+
+// FindStatusCondition finds the conditionType in conditions.
+func FindStatusCondition(conditions []metav1.Condition, conditionType string) *metav1.Condition {
+	for i := range conditions {
+		if conditions[i].Type == conditionType {
+			return &conditions[i]
+		}
+	}
+
+	return nil
+}
+
+// IsStatusConditionTrue returns true when the conditionType is present and set to `metav1.ConditionTrue`
+func IsStatusConditionTrue(conditions []metav1.Condition, conditionType string) bool {
+	return IsStatusConditionPresentAndEqual(conditions, conditionType, metav1.ConditionTrue)
+}
+
+// IsStatusConditionFalse returns true when the conditionType is present and set to `metav1.ConditionFalse`
+func IsStatusConditionFalse(conditions []metav1.Condition, conditionType string) bool {
+	return IsStatusConditionPresentAndEqual(conditions, conditionType, metav1.ConditionFalse)
+}
+
+// IsStatusConditionPresentAndEqual returns true when conditionType is present and equal to status.
+func IsStatusConditionPresentAndEqual(conditions []metav1.Condition, conditionType string, status metav1.ConditionStatus) bool {
+	for _, condition := range conditions {
+		if condition.Type == conditionType {
+			return condition.Status == status
+		}
+	}
+	return false
+}

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

@@ -0,0 +1,19 @@
+/*
+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 meta provides functions for retrieving API metadata from objects
+// belonging to the Kubernetes API
+package meta

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

@@ -0,0 +1,132 @@
+/*
+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 meta
+
+import (
+	"errors"
+	"fmt"
+
+	"k8s.io/apimachinery/pkg/runtime/schema"
+	"k8s.io/apimachinery/pkg/util/sets"
+)
+
+// AmbiguousResourceError is returned if the RESTMapper finds multiple matches for a resource
+type AmbiguousResourceError struct {
+	PartialResource schema.GroupVersionResource
+
+	MatchingResources []schema.GroupVersionResource
+	MatchingKinds     []schema.GroupVersionKind
+}
+
+func (e *AmbiguousResourceError) Error() string {
+	switch {
+	case len(e.MatchingKinds) > 0 && len(e.MatchingResources) > 0:
+		return fmt.Sprintf("%v matches multiple resources %v and kinds %v", e.PartialResource, e.MatchingResources, e.MatchingKinds)
+	case len(e.MatchingKinds) > 0:
+		return fmt.Sprintf("%v matches multiple kinds %v", e.PartialResource, e.MatchingKinds)
+	case len(e.MatchingResources) > 0:
+		return fmt.Sprintf("%v matches multiple resources %v", e.PartialResource, e.MatchingResources)
+	}
+	return fmt.Sprintf("%v matches multiple resources or kinds", e.PartialResource)
+}
+
+func (*AmbiguousResourceError) Is(target error) bool {
+	_, ok := target.(*AmbiguousResourceError)
+	return ok
+}
+
+// AmbiguousKindError is returned if the RESTMapper finds multiple matches for a kind
+type AmbiguousKindError struct {
+	PartialKind schema.GroupVersionKind
+
+	MatchingResources []schema.GroupVersionResource
+	MatchingKinds     []schema.GroupVersionKind
+}
+
+func (e *AmbiguousKindError) Error() string {
+	switch {
+	case len(e.MatchingKinds) > 0 && len(e.MatchingResources) > 0:
+		return fmt.Sprintf("%v matches multiple resources %v and kinds %v", e.PartialKind, e.MatchingResources, e.MatchingKinds)
+	case len(e.MatchingKinds) > 0:
+		return fmt.Sprintf("%v matches multiple kinds %v", e.PartialKind, e.MatchingKinds)
+	case len(e.MatchingResources) > 0:
+		return fmt.Sprintf("%v matches multiple resources %v", e.PartialKind, e.MatchingResources)
+	}
+	return fmt.Sprintf("%v matches multiple resources or kinds", e.PartialKind)
+}
+
+func (*AmbiguousKindError) Is(target error) bool {
+	_, ok := target.(*AmbiguousKindError)
+	return ok
+}
+
+func IsAmbiguousError(err error) bool {
+	if err == nil {
+		return false
+	}
+	return errors.Is(err, &AmbiguousResourceError{}) || errors.Is(err, &AmbiguousKindError{})
+}
+
+// NoResourceMatchError is returned if the RESTMapper can't find any match for a resource
+type NoResourceMatchError struct {
+	PartialResource schema.GroupVersionResource
+}
+
+func (e *NoResourceMatchError) Error() string {
+	return fmt.Sprintf("no matches for %v", e.PartialResource)
+}
+
+func (*NoResourceMatchError) Is(target error) bool {
+	_, ok := target.(*NoResourceMatchError)
+	return ok
+}
+
+// NoKindMatchError is returned if the RESTMapper can't find any match for a kind
+type NoKindMatchError struct {
+	// GroupKind is the API group and kind that was searched
+	GroupKind schema.GroupKind
+	// SearchedVersions is the optional list of versions the search was restricted to
+	SearchedVersions []string
+}
+
+func (e *NoKindMatchError) Error() string {
+	searchedVersions := sets.NewString()
+	for _, v := range e.SearchedVersions {
+		searchedVersions.Insert(schema.GroupVersion{Group: e.GroupKind.Group, Version: v}.String())
+	}
+
+	switch len(searchedVersions) {
+	case 0:
+		return fmt.Sprintf("no matches for kind %q in group %q", e.GroupKind.Kind, e.GroupKind.Group)
+	case 1:
+		return fmt.Sprintf("no matches for kind %q in version %q", e.GroupKind.Kind, searchedVersions.List()[0])
+	default:
+		return fmt.Sprintf("no matches for kind %q in versions %q", e.GroupKind.Kind, searchedVersions.List())
+	}
+}
+
+func (*NoKindMatchError) Is(target error) bool {
+	_, ok := target.(*NoKindMatchError)
+	return ok
+}
+
+func IsNoMatchError(err error) bool {
+	if err == nil {
+		return false
+	}
+	return errors.Is(err, &NoResourceMatchError{}) || errors.Is(err, &NoKindMatchError{})
+}

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

@@ -0,0 +1,105 @@
+/*
+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 meta
+
+import (
+	"fmt"
+
+	"k8s.io/apimachinery/pkg/runtime/schema"
+	utilerrors "k8s.io/apimachinery/pkg/util/errors"
+)
+
+var (
+	_ ResettableRESTMapper = &FirstHitRESTMapper{}
+)
+
+// FirstHitRESTMapper is a wrapper for multiple RESTMappers which returns the
+// first successful result for the singular requests
+type FirstHitRESTMapper struct {
+	MultiRESTMapper
+}
+
+func (m FirstHitRESTMapper) String() string {
+	return fmt.Sprintf("FirstHitRESTMapper{\n\t%v\n}", m.MultiRESTMapper)
+}
+
+func (m FirstHitRESTMapper) ResourceFor(resource schema.GroupVersionResource) (schema.GroupVersionResource, error) {
+	errors := []error{}
+	for _, t := range m.MultiRESTMapper {
+		ret, err := t.ResourceFor(resource)
+		if err == nil {
+			return ret, nil
+		}
+		errors = append(errors, err)
+	}
+
+	return schema.GroupVersionResource{}, collapseAggregateErrors(errors)
+}
+
+func (m FirstHitRESTMapper) KindFor(resource schema.GroupVersionResource) (schema.GroupVersionKind, error) {
+	errors := []error{}
+	for _, t := range m.MultiRESTMapper {
+		ret, err := t.KindFor(resource)
+		if err == nil {
+			return ret, nil
+		}
+		errors = append(errors, err)
+	}
+
+	return schema.GroupVersionKind{}, collapseAggregateErrors(errors)
+}
+
+// RESTMapping provides the REST mapping for the resource based on the
+// kind and version. This implementation supports multiple REST schemas and
+// return the first match.
+func (m FirstHitRESTMapper) RESTMapping(gk schema.GroupKind, versions ...string) (*RESTMapping, error) {
+	errors := []error{}
+	for _, t := range m.MultiRESTMapper {
+		ret, err := t.RESTMapping(gk, versions...)
+		if err == nil {
+			return ret, nil
+		}
+		errors = append(errors, err)
+	}
+
+	return nil, collapseAggregateErrors(errors)
+}
+
+func (m FirstHitRESTMapper) Reset() {
+	m.MultiRESTMapper.Reset()
+}
+
+// collapseAggregateErrors returns the minimal errors.  it handles empty as nil, handles one item in a list
+// by returning the item, and collapses all NoMatchErrors to a single one (since they should all be the same)
+func collapseAggregateErrors(errors []error) error {
+	if len(errors) == 0 {
+		return nil
+	}
+	if len(errors) == 1 {
+		return errors[0]
+	}
+
+	allNoMatchErrors := true
+	for _, err := range errors {
+		allNoMatchErrors = allNoMatchErrors && IsNoMatchError(err)
+	}
+	if allNoMatchErrors {
+		return errors[0]
+	}
+
+	return utilerrors.NewAggregate(errors)
+}

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

@@ -0,0 +1,334 @@
+/*
+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 meta
+
+import (
+	"errors"
+	"fmt"
+	"reflect"
+	"sync"
+
+	"k8s.io/apimachinery/pkg/conversion"
+	"k8s.io/apimachinery/pkg/runtime"
+)
+
+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 {
+	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()
+	}
+
+	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
+	}
+
+	items := v.FieldByName("Items")
+	if !items.IsValid() {
+		return nil, errExpectFieldItems
+	}
+	switch items.Kind() {
+	case reflect.Interface, reflect.Pointer:
+		target := reflect.TypeOf(items.Interface()).Elem()
+		if target.Kind() != reflect.Slice {
+			return nil, errExpectSliceItems
+		}
+		return items.Interface(), nil
+	case reflect.Slice:
+		return items.Addr().Interface(), nil
+	default:
+		return nil, errExpectSliceItems
+	}
+}
+
+// EachListItem invokes fn on each runtime.Object in the list. Any error immediately terminates
+// the loop.
+//
+// If items passed to fn are retained for different durations, and you want to avoid
+// retaining all items in obj as long as any item is referenced, use EachListItemWithAlloc instead.
+func EachListItem(obj runtime.Object, fn func(runtime.Object) error) error {
+	return eachListItem(obj, fn, false)
+}
+
+// EachListItemWithAlloc works like EachListItem, but avoids retaining references to the items slice in obj.
+// It does this by making a shallow copy of non-pointer items in obj.
+//
+// If the items passed to fn are not retained, or are retained for the same duration, use EachListItem instead for memory efficiency.
+func EachListItemWithAlloc(obj runtime.Object, fn func(runtime.Object) error) error {
+	return eachListItem(obj, fn, true)
+}
+
+// allocNew: Whether shallow copy is required when the elements in Object.Items are struct
+func eachListItem(obj runtime.Object, fn func(runtime.Object) error, allocNew bool) error {
+	if unstructured, ok := obj.(runtime.Unstructured); ok {
+		if allocNew {
+			return unstructured.EachListItemWithAlloc(fn)
+		}
+		return unstructured.EachListItem(fn)
+	}
+	// TODO: Change to an interface call?
+	itemsPtr, err := GetItemsPtr(obj)
+	if err != nil {
+		return err
+	}
+	items, err := conversion.EnforcePtr(itemsPtr)
+	if err != nil {
+		return err
+	}
+	len := items.Len()
+	if len == 0 {
+		return nil
+	}
+	takeAddr := false
+	if elemType := items.Type().Elem(); elemType.Kind() != reflect.Pointer && elemType.Kind() != reflect.Interface {
+		if !items.Index(0).CanAddr() {
+			return fmt.Errorf("unable to take address of items in %T for EachListItem", obj)
+		}
+		takeAddr = true
+	}
+
+	for i := 0; i < len; i++ {
+		raw := items.Index(i)
+		if takeAddr {
+			if allocNew {
+				// shallow copy to avoid retaining a reference to the original list item
+				itemCopy := reflect.New(raw.Type())
+				// assign to itemCopy and type-assert
+				itemCopy.Elem().Set(raw)
+				// reflect.New will guarantee that itemCopy must be a pointer.
+				raw = itemCopy
+			} else {
+				raw = raw.Addr()
+			}
+		}
+		// raw must be a pointer or an interface
+		// allocate a pointer is cheap
+		switch item := raw.Interface().(type) {
+		case *runtime.RawExtension:
+			if err := fn(item.Object); err != nil {
+				return err
+			}
+		case runtime.Object:
+			if err := fn(item); err != nil {
+				return err
+			}
+		default:
+			obj, ok := item.(runtime.Object)
+			if !ok {
+				return fmt.Errorf("%v: item[%v]: Expected object, got %#v(%s)", obj, i, raw.Interface(), raw.Kind())
+			}
+			if err := fn(obj); err != nil {
+				return err
+			}
+		}
+	}
+	return nil
+}
+
+// ExtractList returns obj's Items element as an array of runtime.Objects.
+// Returns an error if obj is not a List type (does not have an Items member).
+//
+// If items in the returned list are retained for different durations, and you want to avoid
+// retaining all items in obj as long as any item is referenced, use ExtractListWithAlloc instead.
+func ExtractList(obj runtime.Object) ([]runtime.Object, error) {
+	return extractList(obj, false)
+}
+
+// ExtractListWithAlloc works like ExtractList, but avoids retaining references to the items slice in obj.
+// It does this by making a shallow copy of non-pointer items in obj.
+//
+// If the items in the returned list are not retained, or are retained for the same duration, use ExtractList instead for memory efficiency.
+func ExtractListWithAlloc(obj runtime.Object) ([]runtime.Object, error) {
+	return extractList(obj, true)
+}
+
+// allocNew: Whether shallow copy is required when the elements in Object.Items are struct
+func extractList(obj runtime.Object, allocNew bool) ([]runtime.Object, error) {
+	itemsPtr, err := GetItemsPtr(obj)
+	if err != nil {
+		return nil, err
+	}
+	items, err := conversion.EnforcePtr(itemsPtr)
+	if err != nil {
+		return nil, err
+	}
+	if items.IsNil() {
+		return nil, nil
+	}
+	list := make([]runtime.Object, items.Len())
+	if len(list) == 0 {
+		return list, nil
+	}
+	elemType := items.Type().Elem()
+	isRawExtension := elemType == rawExtensionObjectType
+	implementsObject := elemType.Implements(objectType)
+	for i := range list {
+		raw := items.Index(i)
+		switch {
+		case isRawExtension:
+			item := raw.Interface().(runtime.RawExtension)
+			switch {
+			case item.Object != nil:
+				list[i] = item.Object
+			case item.Raw != nil:
+				// TODO: Set ContentEncoding and ContentType correctly.
+				list[i] = &runtime.Unknown{Raw: item.Raw}
+			default:
+				list[i] = nil
+			}
+		case implementsObject:
+			list[i] = raw.Interface().(runtime.Object)
+		case allocNew:
+			// shallow copy to avoid retaining a reference to the original list item
+			itemCopy := reflect.New(raw.Type())
+			// assign to itemCopy and type-assert
+			itemCopy.Elem().Set(raw)
+			var ok bool
+			// reflect.New will guarantee that itemCopy must be a pointer.
+			if list[i], ok = itemCopy.Interface().(runtime.Object); !ok {
+				return nil, fmt.Errorf("%v: item[%v]: Expected object, got %#v(%s)", obj, i, raw.Interface(), raw.Kind())
+			}
+		default:
+			var found bool
+			if list[i], found = raw.Addr().Interface().(runtime.Object); !found {
+				return nil, fmt.Errorf("%v: item[%v]: Expected object, got %#v(%s)", obj, i, raw.Interface(), raw.Kind())
+			}
+		}
+	}
+	return list, nil
+}
+
+var (
+	// objectSliceType is the type of a slice of Objects
+	objectSliceType        = reflect.TypeOf([]runtime.Object{})
+	objectType             = reflect.TypeOf((*runtime.Object)(nil)).Elem()
+	rawExtensionObjectType = reflect.TypeOf(runtime.RawExtension{})
+)
+
+// 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),
+// or if any of the objects are not of the right type.
+func SetList(list runtime.Object, objects []runtime.Object) error {
+	itemsPtr, err := GetItemsPtr(list)
+	if err != nil {
+		return err
+	}
+	items, err := conversion.EnforcePtr(itemsPtr)
+	if err != nil {
+		return err
+	}
+	if items.Type() == objectSliceType {
+		items.Set(reflect.ValueOf(objects))
+		return nil
+	}
+	slice := reflect.MakeSlice(items.Type(), len(objects), len(objects))
+	for i := range objects {
+		dest := slice.Index(i)
+		if dest.Type() == rawExtensionObjectType {
+			dest = dest.FieldByName("Object")
+		}
+
+		// check to see if you're directly assignable
+		if reflect.TypeOf(objects[i]).AssignableTo(dest.Type()) {
+			dest.Set(reflect.ValueOf(objects[i]))
+			continue
+		}
+
+		src, err := conversion.EnforcePtr(objects[i])
+		if err != nil {
+			return err
+		}
+		if src.Type().AssignableTo(dest.Type()) {
+			dest.Set(src)
+		} else if src.Type().ConvertibleTo(dest.Type()) {
+			dest.Set(src.Convert(dest.Type()))
+		} else {
+			return fmt.Errorf("item[%d]: can't assign or convert %v into %v", i, src.Type(), dest.Type())
+		}
+	}
+	items.Set(slice)
+	return nil
+}

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

@@ -0,0 +1,143 @@
+/*
+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 meta
+
+import (
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/apimachinery/pkg/runtime/schema"
+	"k8s.io/apimachinery/pkg/types"
+)
+
+type ListMetaAccessor interface {
+	GetListMeta() List
+}
+
+// List lets you work with list metadata from any of the versioned or
+// internal API objects. Attempting to set or retrieve a field on an object that does
+// not support that field will be a no-op and return a default value.
+type List metav1.ListInterface
+
+// Type exposes the type and APIVersion of versioned or internal API objects.
+type Type metav1.Type
+
+// MetadataAccessor lets you work with object and list metadata from any of the versioned or
+// internal API objects. Attempting to set or retrieve a field on an object that does
+// not support that field (Name, UID, Namespace on lists) will be a no-op and return
+// a default value.
+//
+// MetadataAccessor exposes Interface in a way that can be used with multiple objects.
+type MetadataAccessor interface {
+	APIVersion(obj runtime.Object) (string, error)
+	SetAPIVersion(obj runtime.Object, version string) error
+
+	Kind(obj runtime.Object) (string, error)
+	SetKind(obj runtime.Object, kind string) error
+
+	Namespace(obj runtime.Object) (string, error)
+	SetNamespace(obj runtime.Object, namespace string) error
+
+	Name(obj runtime.Object) (string, error)
+	SetName(obj runtime.Object, name string) error
+
+	GenerateName(obj runtime.Object) (string, error)
+	SetGenerateName(obj runtime.Object, name string) error
+
+	UID(obj runtime.Object) (types.UID, error)
+	SetUID(obj runtime.Object, uid types.UID) error
+
+	SelfLink(obj runtime.Object) (string, error)
+	SetSelfLink(obj runtime.Object, selfLink string) error
+
+	Labels(obj runtime.Object) (map[string]string, error)
+	SetLabels(obj runtime.Object, labels map[string]string) error
+
+	Annotations(obj runtime.Object) (map[string]string, error)
+	SetAnnotations(obj runtime.Object, annotations map[string]string) error
+
+	Continue(obj runtime.Object) (string, error)
+	SetContinue(obj runtime.Object, c string) error
+
+	runtime.ResourceVersioner
+}
+
+type RESTScopeName string
+
+const (
+	RESTScopeNameNamespace RESTScopeName = "namespace"
+	RESTScopeNameRoot      RESTScopeName = "root"
+)
+
+// RESTScope contains the information needed to deal with REST resources that are in a resource hierarchy
+type RESTScope interface {
+	// Name of the scope
+	Name() RESTScopeName
+}
+
+// RESTMapping contains the information needed to deal with objects of a specific
+// resource and kind in a RESTful manner.
+type RESTMapping struct {
+	// Resource is the GroupVersionResource (location) for this endpoint
+	Resource schema.GroupVersionResource
+
+	// GroupVersionKind is the GroupVersionKind (data format) to submit to this endpoint
+	GroupVersionKind schema.GroupVersionKind
+
+	// Scope contains the information needed to deal with REST Resources that are in a resource hierarchy
+	Scope RESTScope
+}
+
+// RESTMapper allows clients to map resources to kind, and map kind and version
+// to interfaces for manipulating those objects. It is primarily intended for
+// consumers of Kubernetes compatible REST APIs as defined in docs/devel/api-conventions.md.
+//
+// The Kubernetes API provides versioned resources and object kinds which are scoped
+// to API groups. In other words, kinds and resources should not be assumed to be
+// unique across groups.
+//
+// TODO: split into sub-interfaces
+type RESTMapper interface {
+	// KindFor takes a partial resource and returns the single match.  Returns an error if there are multiple matches
+	KindFor(resource schema.GroupVersionResource) (schema.GroupVersionKind, error)
+
+	// KindsFor takes a partial resource and returns the list of potential kinds in priority order
+	KindsFor(resource schema.GroupVersionResource) ([]schema.GroupVersionKind, error)
+
+	// ResourceFor takes a partial resource and returns the single match.  Returns an error if there are multiple matches
+	ResourceFor(input schema.GroupVersionResource) (schema.GroupVersionResource, error)
+
+	// ResourcesFor takes a partial resource and returns the list of potential resource in priority order
+	ResourcesFor(input schema.GroupVersionResource) ([]schema.GroupVersionResource, error)
+
+	// RESTMapping identifies a preferred resource mapping for the provided group kind.
+	RESTMapping(gk schema.GroupKind, versions ...string) (*RESTMapping, error)
+	// RESTMappings returns all resource mappings for the provided group kind if no
+	// version search is provided. Otherwise identifies a preferred resource mapping for
+	// the provided version(s).
+	RESTMappings(gk schema.GroupKind, versions ...string) ([]*RESTMapping, error)
+
+	ResourceSingularizer(resource string) (singular string, err error)
+}
+
+// ResettableRESTMapper is a RESTMapper which is capable of resetting itself
+// from discovery.
+// All rest mappers that delegate to other rest mappers must implement this interface and dynamically
+// check if the delegate mapper supports the Reset() operation.
+type ResettableRESTMapper interface {
+	RESTMapper
+	Reset()
+}

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

@@ -0,0 +1,112 @@
+/*
+Copyright 2017 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 meta
+
+import (
+	"sync"
+
+	"k8s.io/apimachinery/pkg/runtime/schema"
+)
+
+// lazyObject defers loading the mapper and typer until necessary.
+type lazyObject struct {
+	loader func() (RESTMapper, error)
+
+	lock   sync.Mutex
+	loaded bool
+	err    error
+	mapper RESTMapper
+}
+
+// NewLazyRESTMapperLoader handles unrecoverable errors when creating a RESTMapper / ObjectTyper by
+// returning those initialization errors when the interface methods are invoked. This defers the
+// initialization and any server calls until a client actually needs to perform the action.
+func NewLazyRESTMapperLoader(fn func() (RESTMapper, error)) RESTMapper {
+	obj := &lazyObject{loader: fn}
+	return obj
+}
+
+// init lazily loads the mapper and typer, returning an error if initialization has failed.
+func (o *lazyObject) init() error {
+	o.lock.Lock()
+	defer o.lock.Unlock()
+	if o.loaded {
+		return o.err
+	}
+	o.mapper, o.err = o.loader()
+	o.loaded = true
+	return o.err
+}
+
+var _ ResettableRESTMapper = &lazyObject{}
+
+func (o *lazyObject) KindFor(resource schema.GroupVersionResource) (schema.GroupVersionKind, error) {
+	if err := o.init(); err != nil {
+		return schema.GroupVersionKind{}, err
+	}
+	return o.mapper.KindFor(resource)
+}
+
+func (o *lazyObject) KindsFor(resource schema.GroupVersionResource) ([]schema.GroupVersionKind, error) {
+	if err := o.init(); err != nil {
+		return []schema.GroupVersionKind{}, err
+	}
+	return o.mapper.KindsFor(resource)
+}
+
+func (o *lazyObject) ResourceFor(input schema.GroupVersionResource) (schema.GroupVersionResource, error) {
+	if err := o.init(); err != nil {
+		return schema.GroupVersionResource{}, err
+	}
+	return o.mapper.ResourceFor(input)
+}
+
+func (o *lazyObject) ResourcesFor(input schema.GroupVersionResource) ([]schema.GroupVersionResource, error) {
+	if err := o.init(); err != nil {
+		return []schema.GroupVersionResource{}, err
+	}
+	return o.mapper.ResourcesFor(input)
+}
+
+func (o *lazyObject) RESTMapping(gk schema.GroupKind, versions ...string) (*RESTMapping, error) {
+	if err := o.init(); err != nil {
+		return nil, err
+	}
+	return o.mapper.RESTMapping(gk, versions...)
+}
+
+func (o *lazyObject) RESTMappings(gk schema.GroupKind, versions ...string) ([]*RESTMapping, error) {
+	if err := o.init(); err != nil {
+		return nil, err
+	}
+	return o.mapper.RESTMappings(gk, versions...)
+}
+
+func (o *lazyObject) ResourceSingularizer(resource string) (singular string, err error) {
+	if err := o.init(); err != nil {
+		return "", err
+	}
+	return o.mapper.ResourceSingularizer(resource)
+}
+
+func (o *lazyObject) Reset() {
+	o.lock.Lock()
+	defer o.lock.Unlock()
+	if o.loaded && o.err == nil {
+		MaybeResetRESTMapper(o.mapper)
+	}
+}

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

@@ -0,0 +1,643 @@
+/*
+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 meta
+
+import (
+	"fmt"
+	"reflect"
+
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/conversion"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/apimachinery/pkg/runtime/schema"
+	"k8s.io/apimachinery/pkg/types"
+	"k8s.io/klog/v2"
+)
+
+// errNotList is returned when an object implements the Object style interfaces but not the List style
+// interfaces.
+var errNotList = fmt.Errorf("object does not implement the List interfaces")
+
+var errNotCommon = fmt.Errorf("object does not implement the common interface for accessing the SelfLink")
+
+// CommonAccessor returns a Common interface for the provided object or an error if the object does
+// not provide List.
+func CommonAccessor(obj interface{}) (metav1.Common, error) {
+	switch t := obj.(type) {
+	case List:
+		return t, nil
+	case ListMetaAccessor:
+		if m := t.GetListMeta(); m != nil {
+			return m, nil
+		}
+		return nil, errNotCommon
+	case metav1.ListMetaAccessor:
+		if m := t.GetListMeta(); m != nil {
+			return m, nil
+		}
+		return nil, errNotCommon
+	case metav1.Object:
+		return t, nil
+	case metav1.ObjectMetaAccessor:
+		if m := t.GetObjectMeta(); m != nil {
+			return m, nil
+		}
+		return nil, errNotCommon
+	default:
+		return nil, errNotCommon
+	}
+}
+
+// ListAccessor returns a List interface for the provided object or an error if the object does
+// not provide List.
+// IMPORTANT: Objects are NOT a superset of lists. Do not use this check to determine whether an
+// object *is* a List.
+func ListAccessor(obj interface{}) (List, error) {
+	switch t := obj.(type) {
+	case List:
+		return t, nil
+	case ListMetaAccessor:
+		if m := t.GetListMeta(); m != nil {
+			return m, nil
+		}
+		return nil, errNotList
+	case metav1.ListMetaAccessor:
+		if m := t.GetListMeta(); m != nil {
+			return m, nil
+		}
+		return nil, errNotList
+	default:
+		return nil, errNotList
+	}
+}
+
+// errNotObject is returned when an object implements the List style interfaces but not the Object style
+// interfaces.
+var errNotObject = fmt.Errorf("object does not implement the Object interfaces")
+
+// Accessor takes an arbitrary object pointer and returns meta.Interface.
+// obj must be a pointer to an API type. An error is returned if the minimum
+// required fields are missing. Fields that are not required return the default
+// value and are a no-op if set.
+func Accessor(obj interface{}) (metav1.Object, error) {
+	switch t := obj.(type) {
+	case metav1.Object:
+		return t, nil
+	case metav1.ObjectMetaAccessor:
+		if m := t.GetObjectMeta(); m != nil {
+			return m, nil
+		}
+		return nil, errNotObject
+	default:
+		return nil, errNotObject
+	}
+}
+
+// AsPartialObjectMetadata takes the metav1 interface and returns a partial object.
+// TODO: consider making this solely a conversion action.
+func AsPartialObjectMetadata(m metav1.Object) *metav1.PartialObjectMetadata {
+	switch t := m.(type) {
+	case *metav1.ObjectMeta:
+		return &metav1.PartialObjectMetadata{ObjectMeta: *t}
+	default:
+		return &metav1.PartialObjectMetadata{
+			ObjectMeta: metav1.ObjectMeta{
+				Name:                       m.GetName(),
+				GenerateName:               m.GetGenerateName(),
+				Namespace:                  m.GetNamespace(),
+				SelfLink:                   m.GetSelfLink(),
+				UID:                        m.GetUID(),
+				ResourceVersion:            m.GetResourceVersion(),
+				Generation:                 m.GetGeneration(),
+				CreationTimestamp:          m.GetCreationTimestamp(),
+				DeletionTimestamp:          m.GetDeletionTimestamp(),
+				DeletionGracePeriodSeconds: m.GetDeletionGracePeriodSeconds(),
+				Labels:                     m.GetLabels(),
+				Annotations:                m.GetAnnotations(),
+				OwnerReferences:            m.GetOwnerReferences(),
+				Finalizers:                 m.GetFinalizers(),
+				ManagedFields:              m.GetManagedFields(),
+			},
+		}
+	}
+}
+
+// TypeAccessor returns an interface that allows retrieving and modifying the APIVersion
+// and Kind of an in-memory internal object.
+// TODO: this interface is used to test code that does not have ObjectMeta or ListMeta
+// in round tripping (objects which can use apiVersion/kind, but do not fit the Kube
+// api conventions).
+func TypeAccessor(obj interface{}) (Type, error) {
+	if typed, ok := obj.(runtime.Object); ok {
+		return objectAccessor{typed}, nil
+	}
+	v, err := conversion.EnforcePtr(obj)
+	if err != nil {
+		return nil, err
+	}
+	t := v.Type()
+	if v.Kind() != reflect.Struct {
+		return nil, fmt.Errorf("expected struct, but got %v: %v (%#v)", v.Kind(), t, v.Interface())
+	}
+
+	typeMeta := v.FieldByName("TypeMeta")
+	if !typeMeta.IsValid() {
+		return nil, fmt.Errorf("struct %v lacks embedded TypeMeta type", t)
+	}
+	a := &genericAccessor{}
+	if err := extractFromTypeMeta(typeMeta, a); err != nil {
+		return nil, fmt.Errorf("unable to find type fields on %#v: %v", typeMeta, err)
+	}
+	return a, nil
+}
+
+type objectAccessor struct {
+	runtime.Object
+}
+
+func (obj objectAccessor) GetKind() string {
+	return obj.GetObjectKind().GroupVersionKind().Kind
+}
+
+func (obj objectAccessor) SetKind(kind string) {
+	gvk := obj.GetObjectKind().GroupVersionKind()
+	gvk.Kind = kind
+	obj.GetObjectKind().SetGroupVersionKind(gvk)
+}
+
+func (obj objectAccessor) GetAPIVersion() string {
+	return obj.GetObjectKind().GroupVersionKind().GroupVersion().String()
+}
+
+func (obj objectAccessor) SetAPIVersion(version string) {
+	gvk := obj.GetObjectKind().GroupVersionKind()
+	gv, err := schema.ParseGroupVersion(version)
+	if err != nil {
+		gv = schema.GroupVersion{Version: version}
+	}
+	gvk.Group, gvk.Version = gv.Group, gv.Version
+	obj.GetObjectKind().SetGroupVersionKind(gvk)
+}
+
+// NewAccessor returns a MetadataAccessor that can retrieve
+// or manipulate resource version on objects derived from core API
+// metadata concepts.
+func NewAccessor() MetadataAccessor {
+	return resourceAccessor{}
+}
+
+// resourceAccessor implements ResourceVersioner and SelfLinker.
+type resourceAccessor struct{}
+
+func (resourceAccessor) Kind(obj runtime.Object) (string, error) {
+	return objectAccessor{obj}.GetKind(), nil
+}
+
+func (resourceAccessor) SetKind(obj runtime.Object, kind string) error {
+	objectAccessor{obj}.SetKind(kind)
+	return nil
+}
+
+func (resourceAccessor) APIVersion(obj runtime.Object) (string, error) {
+	return objectAccessor{obj}.GetAPIVersion(), nil
+}
+
+func (resourceAccessor) SetAPIVersion(obj runtime.Object, version string) error {
+	objectAccessor{obj}.SetAPIVersion(version)
+	return nil
+}
+
+func (resourceAccessor) Namespace(obj runtime.Object) (string, error) {
+	accessor, err := Accessor(obj)
+	if err != nil {
+		return "", err
+	}
+	return accessor.GetNamespace(), nil
+}
+
+func (resourceAccessor) SetNamespace(obj runtime.Object, namespace string) error {
+	accessor, err := Accessor(obj)
+	if err != nil {
+		return err
+	}
+	accessor.SetNamespace(namespace)
+	return nil
+}
+
+func (resourceAccessor) Name(obj runtime.Object) (string, error) {
+	accessor, err := Accessor(obj)
+	if err != nil {
+		return "", err
+	}
+	return accessor.GetName(), nil
+}
+
+func (resourceAccessor) SetName(obj runtime.Object, name string) error {
+	accessor, err := Accessor(obj)
+	if err != nil {
+		return err
+	}
+	accessor.SetName(name)
+	return nil
+}
+
+func (resourceAccessor) GenerateName(obj runtime.Object) (string, error) {
+	accessor, err := Accessor(obj)
+	if err != nil {
+		return "", err
+	}
+	return accessor.GetGenerateName(), nil
+}
+
+func (resourceAccessor) SetGenerateName(obj runtime.Object, name string) error {
+	accessor, err := Accessor(obj)
+	if err != nil {
+		return err
+	}
+	accessor.SetGenerateName(name)
+	return nil
+}
+
+func (resourceAccessor) UID(obj runtime.Object) (types.UID, error) {
+	accessor, err := Accessor(obj)
+	if err != nil {
+		return "", err
+	}
+	return accessor.GetUID(), nil
+}
+
+func (resourceAccessor) SetUID(obj runtime.Object, uid types.UID) error {
+	accessor, err := Accessor(obj)
+	if err != nil {
+		return err
+	}
+	accessor.SetUID(uid)
+	return nil
+}
+
+func (resourceAccessor) SelfLink(obj runtime.Object) (string, error) {
+	accessor, err := CommonAccessor(obj)
+	if err != nil {
+		return "", err
+	}
+	return accessor.GetSelfLink(), nil
+}
+
+func (resourceAccessor) SetSelfLink(obj runtime.Object, selfLink string) error {
+	accessor, err := CommonAccessor(obj)
+	if err != nil {
+		return err
+	}
+	accessor.SetSelfLink(selfLink)
+	return nil
+}
+
+func (resourceAccessor) Labels(obj runtime.Object) (map[string]string, error) {
+	accessor, err := Accessor(obj)
+	if err != nil {
+		return nil, err
+	}
+	return accessor.GetLabels(), nil
+}
+
+func (resourceAccessor) SetLabels(obj runtime.Object, labels map[string]string) error {
+	accessor, err := Accessor(obj)
+	if err != nil {
+		return err
+	}
+	accessor.SetLabels(labels)
+	return nil
+}
+
+func (resourceAccessor) Annotations(obj runtime.Object) (map[string]string, error) {
+	accessor, err := Accessor(obj)
+	if err != nil {
+		return nil, err
+	}
+	return accessor.GetAnnotations(), nil
+}
+
+func (resourceAccessor) SetAnnotations(obj runtime.Object, annotations map[string]string) error {
+	accessor, err := Accessor(obj)
+	if err != nil {
+		return err
+	}
+	accessor.SetAnnotations(annotations)
+	return nil
+}
+
+func (resourceAccessor) ResourceVersion(obj runtime.Object) (string, error) {
+	accessor, err := CommonAccessor(obj)
+	if err != nil {
+		return "", err
+	}
+	return accessor.GetResourceVersion(), nil
+}
+
+func (resourceAccessor) SetResourceVersion(obj runtime.Object, version string) error {
+	accessor, err := CommonAccessor(obj)
+	if err != nil {
+		return err
+	}
+	accessor.SetResourceVersion(version)
+	return nil
+}
+
+func (resourceAccessor) Continue(obj runtime.Object) (string, error) {
+	accessor, err := ListAccessor(obj)
+	if err != nil {
+		return "", err
+	}
+	return accessor.GetContinue(), nil
+}
+
+func (resourceAccessor) SetContinue(obj runtime.Object, version string) error {
+	accessor, err := ListAccessor(obj)
+	if err != nil {
+		return err
+	}
+	accessor.SetContinue(version)
+	return nil
+}
+
+// extractFromOwnerReference extracts v to o. v is the OwnerReferences field of an object.
+func extractFromOwnerReference(v reflect.Value, o *metav1.OwnerReference) error {
+	if err := runtime.Field(v, "APIVersion", &o.APIVersion); err != nil {
+		return err
+	}
+	if err := runtime.Field(v, "Kind", &o.Kind); err != nil {
+		return err
+	}
+	if err := runtime.Field(v, "Name", &o.Name); err != nil {
+		return err
+	}
+	if err := runtime.Field(v, "UID", &o.UID); err != nil {
+		return err
+	}
+	var controllerPtr *bool
+	if err := runtime.Field(v, "Controller", &controllerPtr); err != nil {
+		return err
+	}
+	if controllerPtr != nil {
+		controller := *controllerPtr
+		o.Controller = &controller
+	}
+	var blockOwnerDeletionPtr *bool
+	if err := runtime.Field(v, "BlockOwnerDeletion", &blockOwnerDeletionPtr); err != nil {
+		return err
+	}
+	if blockOwnerDeletionPtr != nil {
+		block := *blockOwnerDeletionPtr
+		o.BlockOwnerDeletion = &block
+	}
+	return nil
+}
+
+// setOwnerReference sets v to o. v is the OwnerReferences field of an object.
+func setOwnerReference(v reflect.Value, o *metav1.OwnerReference) error {
+	if err := runtime.SetField(o.APIVersion, v, "APIVersion"); err != nil {
+		return err
+	}
+	if err := runtime.SetField(o.Kind, v, "Kind"); err != nil {
+		return err
+	}
+	if err := runtime.SetField(o.Name, v, "Name"); err != nil {
+		return err
+	}
+	if err := runtime.SetField(o.UID, v, "UID"); err != nil {
+		return err
+	}
+	if o.Controller != nil {
+		controller := *(o.Controller)
+		if err := runtime.SetField(&controller, v, "Controller"); err != nil {
+			return err
+		}
+	}
+	if o.BlockOwnerDeletion != nil {
+		block := *(o.BlockOwnerDeletion)
+		if err := runtime.SetField(&block, v, "BlockOwnerDeletion"); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// genericAccessor contains pointers to strings that can modify an arbitrary
+// struct and implements the Accessor interface.
+type genericAccessor struct {
+	namespace         *string
+	name              *string
+	generateName      *string
+	uid               *types.UID
+	apiVersion        *string
+	kind              *string
+	resourceVersion   *string
+	selfLink          *string
+	creationTimestamp *metav1.Time
+	deletionTimestamp **metav1.Time
+	labels            *map[string]string
+	annotations       *map[string]string
+	ownerReferences   reflect.Value
+	finalizers        *[]string
+}
+
+func (a genericAccessor) GetNamespace() string {
+	if a.namespace == nil {
+		return ""
+	}
+	return *a.namespace
+}
+
+func (a genericAccessor) SetNamespace(namespace string) {
+	if a.namespace == nil {
+		return
+	}
+	*a.namespace = namespace
+}
+
+func (a genericAccessor) GetName() string {
+	if a.name == nil {
+		return ""
+	}
+	return *a.name
+}
+
+func (a genericAccessor) SetName(name string) {
+	if a.name == nil {
+		return
+	}
+	*a.name = name
+}
+
+func (a genericAccessor) GetGenerateName() string {
+	if a.generateName == nil {
+		return ""
+	}
+	return *a.generateName
+}
+
+func (a genericAccessor) SetGenerateName(generateName string) {
+	if a.generateName == nil {
+		return
+	}
+	*a.generateName = generateName
+}
+
+func (a genericAccessor) GetUID() types.UID {
+	if a.uid == nil {
+		return ""
+	}
+	return *a.uid
+}
+
+func (a genericAccessor) SetUID(uid types.UID) {
+	if a.uid == nil {
+		return
+	}
+	*a.uid = uid
+}
+
+func (a genericAccessor) GetAPIVersion() string {
+	return *a.apiVersion
+}
+
+func (a genericAccessor) SetAPIVersion(version string) {
+	*a.apiVersion = version
+}
+
+func (a genericAccessor) GetKind() string {
+	return *a.kind
+}
+
+func (a genericAccessor) SetKind(kind string) {
+	*a.kind = kind
+}
+
+func (a genericAccessor) GetResourceVersion() string {
+	return *a.resourceVersion
+}
+
+func (a genericAccessor) SetResourceVersion(version string) {
+	*a.resourceVersion = version
+}
+
+func (a genericAccessor) GetSelfLink() string {
+	return *a.selfLink
+}
+
+func (a genericAccessor) SetSelfLink(selfLink string) {
+	*a.selfLink = selfLink
+}
+
+func (a genericAccessor) GetCreationTimestamp() metav1.Time {
+	return *a.creationTimestamp
+}
+
+func (a genericAccessor) SetCreationTimestamp(timestamp metav1.Time) {
+	*a.creationTimestamp = timestamp
+}
+
+func (a genericAccessor) GetDeletionTimestamp() *metav1.Time {
+	return *a.deletionTimestamp
+}
+
+func (a genericAccessor) SetDeletionTimestamp(timestamp *metav1.Time) {
+	*a.deletionTimestamp = timestamp
+}
+
+func (a genericAccessor) GetLabels() map[string]string {
+	if a.labels == nil {
+		return nil
+	}
+	return *a.labels
+}
+
+func (a genericAccessor) SetLabels(labels map[string]string) {
+	*a.labels = labels
+}
+
+func (a genericAccessor) GetAnnotations() map[string]string {
+	if a.annotations == nil {
+		return nil
+	}
+	return *a.annotations
+}
+
+func (a genericAccessor) SetAnnotations(annotations map[string]string) {
+	if a.annotations == nil {
+		emptyAnnotations := make(map[string]string)
+		a.annotations = &emptyAnnotations
+	}
+	*a.annotations = annotations
+}
+
+func (a genericAccessor) GetFinalizers() []string {
+	if a.finalizers == nil {
+		return nil
+	}
+	return *a.finalizers
+}
+
+func (a genericAccessor) SetFinalizers(finalizers []string) {
+	*a.finalizers = finalizers
+}
+
+func (a genericAccessor) GetOwnerReferences() []metav1.OwnerReference {
+	var ret []metav1.OwnerReference
+	s := a.ownerReferences
+	if s.Kind() != reflect.Pointer || s.Elem().Kind() != reflect.Slice {
+		klog.Errorf("expect %v to be a pointer to slice", s)
+		return ret
+	}
+	s = s.Elem()
+	// Set the capacity to one element greater to avoid copy if the caller later append an element.
+	ret = make([]metav1.OwnerReference, s.Len(), s.Len()+1)
+	for i := 0; i < s.Len(); i++ {
+		if err := extractFromOwnerReference(s.Index(i), &ret[i]); err != nil {
+			klog.Errorf("extractFromOwnerReference failed: %v", err)
+			return ret
+		}
+	}
+	return ret
+}
+
+func (a genericAccessor) SetOwnerReferences(references []metav1.OwnerReference) {
+	s := a.ownerReferences
+	if s.Kind() != reflect.Pointer || s.Elem().Kind() != reflect.Slice {
+		klog.Errorf("expect %v to be a pointer to slice", s)
+	}
+	s = s.Elem()
+	newReferences := reflect.MakeSlice(s.Type(), len(references), len(references))
+	for i := 0; i < len(references); i++ {
+		if err := setOwnerReference(newReferences.Index(i), &references[i]); err != nil {
+			klog.Errorf("setOwnerReference failed: %v", err)
+			return
+		}
+	}
+	s.Set(newReferences)
+}
+
+// extractFromTypeMeta extracts pointers to version and kind fields from an object
+func extractFromTypeMeta(v reflect.Value, a *genericAccessor) error {
+	if err := runtime.FieldPtr(v, "APIVersion", &a.apiVersion); err != nil {
+		return err
+	}
+	if err := runtime.FieldPtr(v, "Kind", &a.kind); err != nil {
+		return err
+	}
+	return nil
+}

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

@@ -0,0 +1,220 @@
+/*
+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 meta
+
+import (
+	"fmt"
+	"strings"
+
+	"k8s.io/apimachinery/pkg/runtime/schema"
+	utilerrors "k8s.io/apimachinery/pkg/util/errors"
+)
+
+var (
+	_ ResettableRESTMapper = MultiRESTMapper{}
+)
+
+// MultiRESTMapper is a wrapper for multiple RESTMappers.
+type MultiRESTMapper []RESTMapper
+
+func (m MultiRESTMapper) String() string {
+	nested := make([]string, 0, len(m))
+	for _, t := range m {
+		currString := fmt.Sprintf("%v", t)
+		splitStrings := strings.Split(currString, "\n")
+		nested = append(nested, strings.Join(splitStrings, "\n\t"))
+	}
+
+	return fmt.Sprintf("MultiRESTMapper{\n\t%s\n}", strings.Join(nested, "\n\t"))
+}
+
+// ResourceSingularizer converts a REST resource name from plural to singular (e.g., from pods to pod)
+// This implementation supports multiple REST schemas and return the first match.
+func (m MultiRESTMapper) ResourceSingularizer(resource string) (singular string, err error) {
+	for _, t := range m {
+		singular, err = t.ResourceSingularizer(resource)
+		if err == nil {
+			return
+		}
+	}
+	return
+}
+
+func (m MultiRESTMapper) ResourcesFor(resource schema.GroupVersionResource) ([]schema.GroupVersionResource, error) {
+	allGVRs := []schema.GroupVersionResource{}
+	for _, t := range m {
+		gvrs, err := t.ResourcesFor(resource)
+		// ignore "no match" errors, but any other error percolates back up
+		if IsNoMatchError(err) {
+			continue
+		}
+		if err != nil {
+			return nil, err
+		}
+
+		// walk the existing values to de-dup
+		for _, curr := range gvrs {
+			found := false
+			for _, existing := range allGVRs {
+				if curr == existing {
+					found = true
+					break
+				}
+			}
+
+			if !found {
+				allGVRs = append(allGVRs, curr)
+			}
+		}
+	}
+
+	if len(allGVRs) == 0 {
+		return nil, &NoResourceMatchError{PartialResource: resource}
+	}
+
+	return allGVRs, nil
+}
+
+func (m MultiRESTMapper) KindsFor(resource schema.GroupVersionResource) (gvk []schema.GroupVersionKind, err error) {
+	allGVKs := []schema.GroupVersionKind{}
+	for _, t := range m {
+		gvks, err := t.KindsFor(resource)
+		// ignore "no match" errors, but any other error percolates back up
+		if IsNoMatchError(err) {
+			continue
+		}
+		if err != nil {
+			return nil, err
+		}
+
+		// walk the existing values to de-dup
+		for _, curr := range gvks {
+			found := false
+			for _, existing := range allGVKs {
+				if curr == existing {
+					found = true
+					break
+				}
+			}
+
+			if !found {
+				allGVKs = append(allGVKs, curr)
+			}
+		}
+	}
+
+	if len(allGVKs) == 0 {
+		return nil, &NoResourceMatchError{PartialResource: resource}
+	}
+
+	return allGVKs, nil
+}
+
+func (m MultiRESTMapper) ResourceFor(resource schema.GroupVersionResource) (schema.GroupVersionResource, error) {
+	resources, err := m.ResourcesFor(resource)
+	if err != nil {
+		return schema.GroupVersionResource{}, err
+	}
+	if len(resources) == 1 {
+		return resources[0], nil
+	}
+
+	return schema.GroupVersionResource{}, &AmbiguousResourceError{PartialResource: resource, MatchingResources: resources}
+}
+
+func (m MultiRESTMapper) KindFor(resource schema.GroupVersionResource) (schema.GroupVersionKind, error) {
+	kinds, err := m.KindsFor(resource)
+	if err != nil {
+		return schema.GroupVersionKind{}, err
+	}
+	if len(kinds) == 1 {
+		return kinds[0], nil
+	}
+
+	return schema.GroupVersionKind{}, &AmbiguousResourceError{PartialResource: resource, MatchingKinds: kinds}
+}
+
+// RESTMapping provides the REST mapping for the resource based on the
+// kind and version. This implementation supports multiple REST schemas and
+// return the first match.
+func (m MultiRESTMapper) RESTMapping(gk schema.GroupKind, versions ...string) (*RESTMapping, error) {
+	allMappings := []*RESTMapping{}
+	errors := []error{}
+
+	for _, t := range m {
+		currMapping, err := t.RESTMapping(gk, versions...)
+		// ignore "no match" errors, but any other error percolates back up
+		if IsNoMatchError(err) {
+			continue
+		}
+		if err != nil {
+			errors = append(errors, err)
+			continue
+		}
+
+		allMappings = append(allMappings, currMapping)
+	}
+
+	// if we got exactly one mapping, then use it even if other requested failed
+	if len(allMappings) == 1 {
+		return allMappings[0], nil
+	}
+	if len(allMappings) > 1 {
+		var kinds []schema.GroupVersionKind
+		for _, m := range allMappings {
+			kinds = append(kinds, m.GroupVersionKind)
+		}
+		return nil, &AmbiguousKindError{PartialKind: gk.WithVersion(""), MatchingKinds: kinds}
+	}
+	if len(errors) > 0 {
+		return nil, utilerrors.NewAggregate(errors)
+	}
+	return nil, &NoKindMatchError{GroupKind: gk, SearchedVersions: versions}
+}
+
+// RESTMappings returns all possible RESTMappings for the provided group kind, or an error
+// if the type is not recognized.
+func (m MultiRESTMapper) RESTMappings(gk schema.GroupKind, versions ...string) ([]*RESTMapping, error) {
+	var allMappings []*RESTMapping
+	var errors []error
+
+	for _, t := range m {
+		currMappings, err := t.RESTMappings(gk, versions...)
+		// ignore "no match" errors, but any other error percolates back up
+		if IsNoMatchError(err) {
+			continue
+		}
+		if err != nil {
+			errors = append(errors, err)
+			continue
+		}
+		allMappings = append(allMappings, currMappings...)
+	}
+	if len(errors) > 0 {
+		return nil, utilerrors.NewAggregate(errors)
+	}
+	if len(allMappings) == 0 {
+		return nil, &NoKindMatchError{GroupKind: gk, SearchedVersions: versions}
+	}
+	return allMappings, nil
+}
+
+func (m MultiRESTMapper) Reset() {
+	for _, t := range m {
+		MaybeResetRESTMapper(t)
+	}
+}

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

@@ -0,0 +1,230 @@
+/*
+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 meta
+
+import (
+	"fmt"
+
+	"k8s.io/apimachinery/pkg/runtime/schema"
+)
+
+const (
+	AnyGroup    = "*"
+	AnyVersion  = "*"
+	AnyResource = "*"
+	AnyKind     = "*"
+)
+
+var (
+	_ ResettableRESTMapper = PriorityRESTMapper{}
+)
+
+// PriorityRESTMapper is a wrapper for automatically choosing a particular Resource or Kind
+// when multiple matches are possible
+type PriorityRESTMapper struct {
+	// Delegate is the RESTMapper to use to locate all the Kind and Resource matches
+	Delegate RESTMapper
+
+	// ResourcePriority is a list of priority patterns to apply to matching resources.
+	// The list of all matching resources is narrowed based on the patterns until only one remains.
+	// A pattern with no matches is skipped.  A pattern with more than one match uses its
+	// matches as the list to continue matching against.
+	ResourcePriority []schema.GroupVersionResource
+
+	// KindPriority is a list of priority patterns to apply to matching kinds.
+	// The list of all matching kinds is narrowed based on the patterns until only one remains.
+	// A pattern with no matches is skipped.  A pattern with more than one match uses its
+	// matches as the list to continue matching against.
+	KindPriority []schema.GroupVersionKind
+}
+
+func (m PriorityRESTMapper) String() string {
+	return fmt.Sprintf("PriorityRESTMapper{\n\t%v\n\t%v\n\t%v\n}", m.ResourcePriority, m.KindPriority, m.Delegate)
+}
+
+// ResourceFor finds all resources, then passes them through the ResourcePriority patterns to find a single matching hit.
+func (m PriorityRESTMapper) ResourceFor(partiallySpecifiedResource schema.GroupVersionResource) (schema.GroupVersionResource, error) {
+	originalGVRs, originalErr := m.Delegate.ResourcesFor(partiallySpecifiedResource)
+	if originalErr != nil && len(originalGVRs) == 0 {
+		return schema.GroupVersionResource{}, originalErr
+	}
+	if len(originalGVRs) == 1 {
+		return originalGVRs[0], originalErr
+	}
+
+	remainingGVRs := append([]schema.GroupVersionResource{}, originalGVRs...)
+	for _, pattern := range m.ResourcePriority {
+		matchedGVRs := []schema.GroupVersionResource{}
+		for _, gvr := range remainingGVRs {
+			if resourceMatches(pattern, gvr) {
+				matchedGVRs = append(matchedGVRs, gvr)
+			}
+		}
+
+		switch len(matchedGVRs) {
+		case 0:
+			// if you have no matches, then nothing matched this pattern just move to the next
+			continue
+		case 1:
+			// one match, return
+			return matchedGVRs[0], originalErr
+		default:
+			// more than one match, use the matched hits as the list moving to the next pattern.
+			// this way you can have a series of selection criteria
+			remainingGVRs = matchedGVRs
+		}
+	}
+
+	return schema.GroupVersionResource{}, &AmbiguousResourceError{PartialResource: partiallySpecifiedResource, MatchingResources: originalGVRs}
+}
+
+// KindFor finds all kinds, then passes them through the KindPriority patterns to find a single matching hit.
+func (m PriorityRESTMapper) KindFor(partiallySpecifiedResource schema.GroupVersionResource) (schema.GroupVersionKind, error) {
+	originalGVKs, originalErr := m.Delegate.KindsFor(partiallySpecifiedResource)
+	if originalErr != nil && len(originalGVKs) == 0 {
+		return schema.GroupVersionKind{}, originalErr
+	}
+	if len(originalGVKs) == 1 {
+		return originalGVKs[0], originalErr
+	}
+
+	remainingGVKs := append([]schema.GroupVersionKind{}, originalGVKs...)
+	for _, pattern := range m.KindPriority {
+		matchedGVKs := []schema.GroupVersionKind{}
+		for _, gvr := range remainingGVKs {
+			if kindMatches(pattern, gvr) {
+				matchedGVKs = append(matchedGVKs, gvr)
+			}
+		}
+
+		switch len(matchedGVKs) {
+		case 0:
+			// if you have no matches, then nothing matched this pattern just move to the next
+			continue
+		case 1:
+			// one match, return
+			return matchedGVKs[0], originalErr
+		default:
+			// more than one match, use the matched hits as the list moving to the next pattern.
+			// this way you can have a series of selection criteria
+			remainingGVKs = matchedGVKs
+		}
+	}
+
+	return schema.GroupVersionKind{}, &AmbiguousResourceError{PartialResource: partiallySpecifiedResource, MatchingKinds: originalGVKs}
+}
+
+func resourceMatches(pattern schema.GroupVersionResource, resource schema.GroupVersionResource) bool {
+	if pattern.Group != AnyGroup && pattern.Group != resource.Group {
+		return false
+	}
+	if pattern.Version != AnyVersion && pattern.Version != resource.Version {
+		return false
+	}
+	if pattern.Resource != AnyResource && pattern.Resource != resource.Resource {
+		return false
+	}
+
+	return true
+}
+
+func kindMatches(pattern schema.GroupVersionKind, kind schema.GroupVersionKind) bool {
+	if pattern.Group != AnyGroup && pattern.Group != kind.Group {
+		return false
+	}
+	if pattern.Version != AnyVersion && pattern.Version != kind.Version {
+		return false
+	}
+	if pattern.Kind != AnyKind && pattern.Kind != kind.Kind {
+		return false
+	}
+
+	return true
+}
+
+func (m PriorityRESTMapper) RESTMapping(gk schema.GroupKind, versions ...string) (mapping *RESTMapping, err error) {
+	mappings, originalErr := m.Delegate.RESTMappings(gk, versions...)
+	if originalErr != nil && len(mappings) == 0 {
+		return nil, originalErr
+	}
+
+	// any versions the user provides take priority
+	priorities := m.KindPriority
+	if len(versions) > 0 {
+		priorities = make([]schema.GroupVersionKind, 0, len(m.KindPriority)+len(versions))
+		for _, version := range versions {
+			gv := schema.GroupVersion{
+				Version: version,
+				Group:   gk.Group,
+			}
+			priorities = append(priorities, gv.WithKind(AnyKind))
+		}
+		priorities = append(priorities, m.KindPriority...)
+	}
+
+	remaining := append([]*RESTMapping{}, mappings...)
+	for _, pattern := range priorities {
+		var matching []*RESTMapping
+		for _, m := range remaining {
+			if kindMatches(pattern, m.GroupVersionKind) {
+				matching = append(matching, m)
+			}
+		}
+
+		switch len(matching) {
+		case 0:
+			// if you have no matches, then nothing matched this pattern just move to the next
+			continue
+		case 1:
+			// one match, return
+			return matching[0], originalErr
+		default:
+			// more than one match, use the matched hits as the list moving to the next pattern.
+			// this way you can have a series of selection criteria
+			remaining = matching
+		}
+	}
+	if len(remaining) == 1 {
+		return remaining[0], originalErr
+	}
+
+	var kinds []schema.GroupVersionKind
+	for _, m := range mappings {
+		kinds = append(kinds, m.GroupVersionKind)
+	}
+	return nil, &AmbiguousKindError{PartialKind: gk.WithVersion(""), MatchingKinds: kinds}
+}
+
+func (m PriorityRESTMapper) RESTMappings(gk schema.GroupKind, versions ...string) ([]*RESTMapping, error) {
+	return m.Delegate.RESTMappings(gk, versions...)
+}
+
+func (m PriorityRESTMapper) ResourceSingularizer(resource string) (singular string, err error) {
+	return m.Delegate.ResourceSingularizer(resource)
+}
+
+func (m PriorityRESTMapper) ResourcesFor(partiallySpecifiedResource schema.GroupVersionResource) ([]schema.GroupVersionResource, error) {
+	return m.Delegate.ResourcesFor(partiallySpecifiedResource)
+}
+
+func (m PriorityRESTMapper) KindsFor(partiallySpecifiedResource schema.GroupVersionResource) (gvk []schema.GroupVersionKind, err error) {
+	return m.Delegate.KindsFor(partiallySpecifiedResource)
+}
+
+func (m PriorityRESTMapper) Reset() {
+	MaybeResetRESTMapper(m.Delegate)
+}

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

@@ -0,0 +1,529 @@
+/*
+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.
+*/
+
+// TODO: move everything in this file to pkg/api/rest
+package meta
+
+import (
+	"fmt"
+	"sort"
+	"strings"
+
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/apimachinery/pkg/runtime/schema"
+)
+
+// Implements RESTScope interface
+type restScope struct {
+	name RESTScopeName
+}
+
+func (r *restScope) Name() RESTScopeName {
+	return r.name
+}
+
+var RESTScopeNamespace = &restScope{
+	name: RESTScopeNameNamespace,
+}
+
+var RESTScopeRoot = &restScope{
+	name: RESTScopeNameRoot,
+}
+
+// DefaultRESTMapper exposes mappings between the types defined in a
+// runtime.Scheme. It assumes that all types defined the provided scheme
+// can be mapped with the provided MetadataAccessor and Codec interfaces.
+//
+// The resource name of a Kind is defined as the lowercase,
+// English-plural version of the Kind string.
+// When converting from resource to Kind, the singular version of the
+// resource name is also accepted for convenience.
+//
+// TODO: Only accept plural for some operations for increased control?
+// (`get pod bar` vs `get pods bar`)
+type DefaultRESTMapper struct {
+	defaultGroupVersions []schema.GroupVersion
+
+	resourceToKind       map[schema.GroupVersionResource]schema.GroupVersionKind
+	kindToPluralResource map[schema.GroupVersionKind]schema.GroupVersionResource
+	kindToScope          map[schema.GroupVersionKind]RESTScope
+	singularToPlural     map[schema.GroupVersionResource]schema.GroupVersionResource
+	pluralToSingular     map[schema.GroupVersionResource]schema.GroupVersionResource
+}
+
+func (m *DefaultRESTMapper) String() string {
+	if m == nil {
+		return "<nil>"
+	}
+	return fmt.Sprintf("DefaultRESTMapper{kindToPluralResource=%v}", m.kindToPluralResource)
+}
+
+var _ RESTMapper = &DefaultRESTMapper{}
+
+// NewDefaultRESTMapper initializes a mapping between Kind and APIVersion
+// to a resource name and back based on the objects in a runtime.Scheme
+// and the Kubernetes API conventions. Takes a group name, a priority list of the versions
+// to search when an object has no default version (set empty to return an error),
+// and a function that retrieves the correct metadata for a given version.
+func NewDefaultRESTMapper(defaultGroupVersions []schema.GroupVersion) *DefaultRESTMapper {
+	resourceToKind := make(map[schema.GroupVersionResource]schema.GroupVersionKind)
+	kindToPluralResource := make(map[schema.GroupVersionKind]schema.GroupVersionResource)
+	kindToScope := make(map[schema.GroupVersionKind]RESTScope)
+	singularToPlural := make(map[schema.GroupVersionResource]schema.GroupVersionResource)
+	pluralToSingular := make(map[schema.GroupVersionResource]schema.GroupVersionResource)
+	// TODO: verify name mappings work correctly when versions differ
+
+	return &DefaultRESTMapper{
+		resourceToKind:       resourceToKind,
+		kindToPluralResource: kindToPluralResource,
+		kindToScope:          kindToScope,
+		defaultGroupVersions: defaultGroupVersions,
+		singularToPlural:     singularToPlural,
+		pluralToSingular:     pluralToSingular,
+	}
+}
+
+func (m *DefaultRESTMapper) Add(kind schema.GroupVersionKind, scope RESTScope) {
+	plural, singular := UnsafeGuessKindToResource(kind)
+	m.AddSpecific(kind, plural, singular, scope)
+}
+
+func (m *DefaultRESTMapper) AddSpecific(kind schema.GroupVersionKind, plural, singular schema.GroupVersionResource, scope RESTScope) {
+	m.singularToPlural[singular] = plural
+	m.pluralToSingular[plural] = singular
+
+	m.resourceToKind[singular] = kind
+	m.resourceToKind[plural] = kind
+
+	m.kindToPluralResource[kind] = plural
+	m.kindToScope[kind] = scope
+}
+
+// unpluralizedSuffixes is a list of resource suffixes that are the same plural and singular
+// This is only is only necessary because some bits of code are lazy and don't actually use the RESTMapper like they should.
+// TODO eliminate this so that different callers can correctly map to resources.  This probably means updating all
+// callers to use the RESTMapper they mean.
+var unpluralizedSuffixes = []string{
+	"endpoints",
+}
+
+// UnsafeGuessKindToResource converts Kind to a resource name.
+// Broken. This method only "sort of" works when used outside of this package.  It assumes that Kinds and Resources match
+// and they aren't guaranteed to do so.
+func UnsafeGuessKindToResource(kind schema.GroupVersionKind) ( /*plural*/ schema.GroupVersionResource /*singular*/, schema.GroupVersionResource) {
+	kindName := kind.Kind
+	if len(kindName) == 0 {
+		return schema.GroupVersionResource{}, schema.GroupVersionResource{}
+	}
+	singularName := strings.ToLower(kindName)
+	singular := kind.GroupVersion().WithResource(singularName)
+
+	for _, skip := range unpluralizedSuffixes {
+		if strings.HasSuffix(singularName, skip) {
+			return singular, singular
+		}
+	}
+
+	switch string(singularName[len(singularName)-1]) {
+	case "s":
+		return kind.GroupVersion().WithResource(singularName + "es"), singular
+	case "y":
+		return kind.GroupVersion().WithResource(strings.TrimSuffix(singularName, "y") + "ies"), singular
+	}
+
+	return kind.GroupVersion().WithResource(singularName + "s"), singular
+}
+
+// ResourceSingularizer implements RESTMapper
+// It converts a resource name from plural to singular (e.g., from pods to pod)
+func (m *DefaultRESTMapper) ResourceSingularizer(resourceType string) (string, error) {
+	partialResource := schema.GroupVersionResource{Resource: resourceType}
+	resources, err := m.ResourcesFor(partialResource)
+	if err != nil {
+		return resourceType, err
+	}
+
+	singular := schema.GroupVersionResource{}
+	for _, curr := range resources {
+		currSingular, ok := m.pluralToSingular[curr]
+		if !ok {
+			continue
+		}
+		if singular.Empty() {
+			singular = currSingular
+			continue
+		}
+
+		if currSingular.Resource != singular.Resource {
+			return resourceType, fmt.Errorf("multiple possible singular resources (%v) found for %v", resources, resourceType)
+		}
+	}
+
+	if singular.Empty() {
+		return resourceType, fmt.Errorf("no singular of resource %v has been defined", resourceType)
+	}
+
+	return singular.Resource, nil
+}
+
+// coerceResourceForMatching makes the resource lower case and converts internal versions to unspecified (legacy behavior)
+func coerceResourceForMatching(resource schema.GroupVersionResource) schema.GroupVersionResource {
+	resource.Resource = strings.ToLower(resource.Resource)
+	if resource.Version == runtime.APIVersionInternal {
+		resource.Version = ""
+	}
+
+	return resource
+}
+
+func (m *DefaultRESTMapper) ResourcesFor(input schema.GroupVersionResource) ([]schema.GroupVersionResource, error) {
+	resource := coerceResourceForMatching(input)
+
+	hasResource := len(resource.Resource) > 0
+	hasGroup := len(resource.Group) > 0
+	hasVersion := len(resource.Version) > 0
+
+	if !hasResource {
+		return nil, fmt.Errorf("a resource must be present, got: %v", resource)
+	}
+
+	ret := []schema.GroupVersionResource{}
+	switch {
+	case hasGroup && hasVersion:
+		// fully qualified.  Find the exact match
+		for plural, singular := range m.pluralToSingular {
+			if singular == resource {
+				ret = append(ret, plural)
+				break
+			}
+			if plural == resource {
+				ret = append(ret, plural)
+				break
+			}
+		}
+
+	case hasGroup:
+		// given a group, prefer an exact match.  If you don't find one, resort to a prefix match on group
+		foundExactMatch := false
+		requestedGroupResource := resource.GroupResource()
+		for plural, singular := range m.pluralToSingular {
+			if singular.GroupResource() == requestedGroupResource {
+				foundExactMatch = true
+				ret = append(ret, plural)
+			}
+			if plural.GroupResource() == requestedGroupResource {
+				foundExactMatch = true
+				ret = append(ret, plural)
+			}
+		}
+
+		// if you didn't find an exact match, match on group prefixing. This allows storageclass.storage to match
+		// storageclass.storage.k8s.io
+		if !foundExactMatch {
+			for plural, singular := range m.pluralToSingular {
+				if !strings.HasPrefix(plural.Group, requestedGroupResource.Group) {
+					continue
+				}
+				if singular.Resource == requestedGroupResource.Resource {
+					ret = append(ret, plural)
+				}
+				if plural.Resource == requestedGroupResource.Resource {
+					ret = append(ret, plural)
+				}
+			}
+
+		}
+
+	case hasVersion:
+		for plural, singular := range m.pluralToSingular {
+			if singular.Version == resource.Version && singular.Resource == resource.Resource {
+				ret = append(ret, plural)
+			}
+			if plural.Version == resource.Version && plural.Resource == resource.Resource {
+				ret = append(ret, plural)
+			}
+		}
+
+	default:
+		for plural, singular := range m.pluralToSingular {
+			if singular.Resource == resource.Resource {
+				ret = append(ret, plural)
+			}
+			if plural.Resource == resource.Resource {
+				ret = append(ret, plural)
+			}
+		}
+	}
+
+	if len(ret) == 0 {
+		return nil, &NoResourceMatchError{PartialResource: resource}
+	}
+
+	sort.Sort(resourceByPreferredGroupVersion{ret, m.defaultGroupVersions})
+	return ret, nil
+}
+
+func (m *DefaultRESTMapper) ResourceFor(resource schema.GroupVersionResource) (schema.GroupVersionResource, error) {
+	resources, err := m.ResourcesFor(resource)
+	if err != nil {
+		return schema.GroupVersionResource{}, err
+	}
+	if len(resources) == 1 {
+		return resources[0], nil
+	}
+
+	return schema.GroupVersionResource{}, &AmbiguousResourceError{PartialResource: resource, MatchingResources: resources}
+}
+
+func (m *DefaultRESTMapper) KindsFor(input schema.GroupVersionResource) ([]schema.GroupVersionKind, error) {
+	resource := coerceResourceForMatching(input)
+
+	hasResource := len(resource.Resource) > 0
+	hasGroup := len(resource.Group) > 0
+	hasVersion := len(resource.Version) > 0
+
+	if !hasResource {
+		return nil, fmt.Errorf("a resource must be present, got: %v", resource)
+	}
+
+	ret := []schema.GroupVersionKind{}
+	switch {
+	// fully qualified.  Find the exact match
+	case hasGroup && hasVersion:
+		kind, exists := m.resourceToKind[resource]
+		if exists {
+			ret = append(ret, kind)
+		}
+
+	case hasGroup:
+		foundExactMatch := false
+		requestedGroupResource := resource.GroupResource()
+		for currResource, currKind := range m.resourceToKind {
+			if currResource.GroupResource() == requestedGroupResource {
+				foundExactMatch = true
+				ret = append(ret, currKind)
+			}
+		}
+
+		// if you didn't find an exact match, match on group prefixing. This allows storageclass.storage to match
+		// storageclass.storage.k8s.io
+		if !foundExactMatch {
+			for currResource, currKind := range m.resourceToKind {
+				if !strings.HasPrefix(currResource.Group, requestedGroupResource.Group) {
+					continue
+				}
+				if currResource.Resource == requestedGroupResource.Resource {
+					ret = append(ret, currKind)
+				}
+			}
+
+		}
+
+	case hasVersion:
+		for currResource, currKind := range m.resourceToKind {
+			if currResource.Version == resource.Version && currResource.Resource == resource.Resource {
+				ret = append(ret, currKind)
+			}
+		}
+
+	default:
+		for currResource, currKind := range m.resourceToKind {
+			if currResource.Resource == resource.Resource {
+				ret = append(ret, currKind)
+			}
+		}
+	}
+
+	if len(ret) == 0 {
+		return nil, &NoResourceMatchError{PartialResource: input}
+	}
+
+	sort.Sort(kindByPreferredGroupVersion{ret, m.defaultGroupVersions})
+	return ret, nil
+}
+
+func (m *DefaultRESTMapper) KindFor(resource schema.GroupVersionResource) (schema.GroupVersionKind, error) {
+	kinds, err := m.KindsFor(resource)
+	if err != nil {
+		return schema.GroupVersionKind{}, err
+	}
+	if len(kinds) == 1 {
+		return kinds[0], nil
+	}
+
+	return schema.GroupVersionKind{}, &AmbiguousResourceError{PartialResource: resource, MatchingKinds: kinds}
+}
+
+type kindByPreferredGroupVersion struct {
+	list      []schema.GroupVersionKind
+	sortOrder []schema.GroupVersion
+}
+
+func (o kindByPreferredGroupVersion) Len() int      { return len(o.list) }
+func (o kindByPreferredGroupVersion) Swap(i, j int) { o.list[i], o.list[j] = o.list[j], o.list[i] }
+func (o kindByPreferredGroupVersion) Less(i, j int) bool {
+	lhs := o.list[i]
+	rhs := o.list[j]
+	if lhs == rhs {
+		return false
+	}
+
+	if lhs.GroupVersion() == rhs.GroupVersion() {
+		return lhs.Kind < rhs.Kind
+	}
+
+	// otherwise, the difference is in the GroupVersion, so we need to sort with respect to the preferred order
+	lhsIndex := -1
+	rhsIndex := -1
+
+	for i := range o.sortOrder {
+		if o.sortOrder[i] == lhs.GroupVersion() {
+			lhsIndex = i
+		}
+		if o.sortOrder[i] == rhs.GroupVersion() {
+			rhsIndex = i
+		}
+	}
+
+	if rhsIndex == -1 {
+		return true
+	}
+
+	return lhsIndex < rhsIndex
+}
+
+type resourceByPreferredGroupVersion struct {
+	list      []schema.GroupVersionResource
+	sortOrder []schema.GroupVersion
+}
+
+func (o resourceByPreferredGroupVersion) Len() int      { return len(o.list) }
+func (o resourceByPreferredGroupVersion) Swap(i, j int) { o.list[i], o.list[j] = o.list[j], o.list[i] }
+func (o resourceByPreferredGroupVersion) Less(i, j int) bool {
+	lhs := o.list[i]
+	rhs := o.list[j]
+	if lhs == rhs {
+		return false
+	}
+
+	if lhs.GroupVersion() == rhs.GroupVersion() {
+		return lhs.Resource < rhs.Resource
+	}
+
+	// otherwise, the difference is in the GroupVersion, so we need to sort with respect to the preferred order
+	lhsIndex := -1
+	rhsIndex := -1
+
+	for i := range o.sortOrder {
+		if o.sortOrder[i] == lhs.GroupVersion() {
+			lhsIndex = i
+		}
+		if o.sortOrder[i] == rhs.GroupVersion() {
+			rhsIndex = i
+		}
+	}
+
+	if rhsIndex == -1 {
+		return true
+	}
+
+	return lhsIndex < rhsIndex
+}
+
+// RESTMapping returns a struct representing the resource path and conversion interfaces a
+// RESTClient should use to operate on the provided group/kind in order of versions. If a version search
+// order is not provided, the search order provided to DefaultRESTMapper will be used to resolve which
+// version should be used to access the named group/kind.
+func (m *DefaultRESTMapper) RESTMapping(gk schema.GroupKind, versions ...string) (*RESTMapping, error) {
+	mappings, err := m.RESTMappings(gk, versions...)
+	if err != nil {
+		return nil, err
+	}
+	if len(mappings) == 0 {
+		return nil, &NoKindMatchError{GroupKind: gk, SearchedVersions: versions}
+	}
+	// since we rely on RESTMappings method
+	// take the first match and return to the caller
+	// as this was the existing behavior.
+	return mappings[0], nil
+}
+
+// RESTMappings returns the RESTMappings for the provided group kind. If a version search order
+// is not provided, the search order provided to DefaultRESTMapper will be used.
+func (m *DefaultRESTMapper) RESTMappings(gk schema.GroupKind, versions ...string) ([]*RESTMapping, error) {
+	mappings := make([]*RESTMapping, 0)
+	potentialGVK := make([]schema.GroupVersionKind, 0)
+	hadVersion := false
+
+	// Pick an appropriate version
+	for _, version := range versions {
+		if len(version) == 0 || version == runtime.APIVersionInternal {
+			continue
+		}
+		currGVK := gk.WithVersion(version)
+		hadVersion = true
+		if _, ok := m.kindToPluralResource[currGVK]; ok {
+			potentialGVK = append(potentialGVK, currGVK)
+			break
+		}
+	}
+	// Use the default preferred versions
+	if !hadVersion && len(potentialGVK) == 0 {
+		for _, gv := range m.defaultGroupVersions {
+			if gv.Group != gk.Group {
+				continue
+			}
+			potentialGVK = append(potentialGVK, gk.WithVersion(gv.Version))
+		}
+	}
+
+	if len(potentialGVK) == 0 {
+		return nil, &NoKindMatchError{GroupKind: gk, SearchedVersions: versions}
+	}
+
+	for _, gvk := range potentialGVK {
+		//Ensure we have a REST mapping
+		res, ok := m.kindToPluralResource[gvk]
+		if !ok {
+			continue
+		}
+
+		// Ensure we have a REST scope
+		scope, ok := m.kindToScope[gvk]
+		if !ok {
+			return nil, fmt.Errorf("the provided version %q and kind %q cannot be mapped to a supported scope", gvk.GroupVersion(), gvk.Kind)
+		}
+
+		mappings = append(mappings, &RESTMapping{
+			Resource:         res,
+			GroupVersionKind: gvk,
+			Scope:            scope,
+		})
+	}
+
+	if len(mappings) == 0 {
+		return nil, &NoResourceMatchError{PartialResource: schema.GroupVersionResource{Group: gk.Group, Resource: gk.Kind}}
+	}
+	return mappings, nil
+}
+
+// MaybeResetRESTMapper calls Reset() on the mapper if it is a ResettableRESTMapper.
+func MaybeResetRESTMapper(mapper RESTMapper) {
+	m, ok := mapper.(ResettableRESTMapper)
+	if ok {
+		m.Reset()
+	}
+}

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

@@ -0,0 +1,165 @@
+/*
+Copyright 2018 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 testrestmapper
+
+import (
+	"k8s.io/apimachinery/pkg/api/meta"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/apimachinery/pkg/runtime/schema"
+	"k8s.io/apimachinery/pkg/util/sets"
+)
+
+// TestOnlyStaticRESTMapper returns a union RESTMapper of all known types with priorities chosen in the following order:
+//  1. legacy kube group preferred version, extensions preferred version, metrics preferred version, legacy
+//     kube any version, extensions any version, metrics any version, all other groups alphabetical preferred version,
+//     all other groups alphabetical.
+//
+// TODO callers of this method should be updated to build their own specific restmapper based on their scheme for their tests
+// TODO the things being tested are related to whether various cases are handled, not tied to the particular types being checked.
+func TestOnlyStaticRESTMapper(scheme *runtime.Scheme, versionPatterns ...schema.GroupVersion) meta.RESTMapper {
+	unionMapper := meta.MultiRESTMapper{}
+	unionedGroups := sets.NewString()
+	for _, enabledVersion := range scheme.PrioritizedVersionsAllGroups() {
+		if !unionedGroups.Has(enabledVersion.Group) {
+			unionedGroups.Insert(enabledVersion.Group)
+			unionMapper = append(unionMapper, newRESTMapper(enabledVersion.Group, scheme))
+		}
+	}
+
+	if len(versionPatterns) != 0 {
+		resourcePriority := []schema.GroupVersionResource{}
+		kindPriority := []schema.GroupVersionKind{}
+		for _, versionPriority := range versionPatterns {
+			resourcePriority = append(resourcePriority, versionPriority.WithResource(meta.AnyResource))
+			kindPriority = append(kindPriority, versionPriority.WithKind(meta.AnyKind))
+		}
+
+		return meta.PriorityRESTMapper{Delegate: unionMapper, ResourcePriority: resourcePriority, KindPriority: kindPriority}
+	}
+
+	prioritizedGroups := []string{"", "extensions", "metrics"}
+	resourcePriority, kindPriority := prioritiesForGroups(scheme, prioritizedGroups...)
+
+	prioritizedGroupsSet := sets.NewString(prioritizedGroups...)
+	remainingGroups := sets.String{}
+	for _, enabledVersion := range scheme.PrioritizedVersionsAllGroups() {
+		if !prioritizedGroupsSet.Has(enabledVersion.Group) {
+			remainingGroups.Insert(enabledVersion.Group)
+		}
+	}
+
+	remainingResourcePriority, remainingKindPriority := prioritiesForGroups(scheme, remainingGroups.List()...)
+	resourcePriority = append(resourcePriority, remainingResourcePriority...)
+	kindPriority = append(kindPriority, remainingKindPriority...)
+
+	return meta.PriorityRESTMapper{Delegate: unionMapper, ResourcePriority: resourcePriority, KindPriority: kindPriority}
+}
+
+// prioritiesForGroups returns the resource and kind priorities for a PriorityRESTMapper, preferring the preferred version of each group first,
+// then any non-preferred version of the group second.
+func prioritiesForGroups(scheme *runtime.Scheme, groups ...string) ([]schema.GroupVersionResource, []schema.GroupVersionKind) {
+	resourcePriority := []schema.GroupVersionResource{}
+	kindPriority := []schema.GroupVersionKind{}
+
+	for _, group := range groups {
+		availableVersions := scheme.PrioritizedVersionsForGroup(group)
+		if len(availableVersions) > 0 {
+			resourcePriority = append(resourcePriority, availableVersions[0].WithResource(meta.AnyResource))
+			kindPriority = append(kindPriority, availableVersions[0].WithKind(meta.AnyKind))
+		}
+	}
+	for _, group := range groups {
+		resourcePriority = append(resourcePriority, schema.GroupVersionResource{Group: group, Version: meta.AnyVersion, Resource: meta.AnyResource})
+		kindPriority = append(kindPriority, schema.GroupVersionKind{Group: group, Version: meta.AnyVersion, Kind: meta.AnyKind})
+	}
+
+	return resourcePriority, kindPriority
+}
+
+func newRESTMapper(group string, scheme *runtime.Scheme) meta.RESTMapper {
+	mapper := meta.NewDefaultRESTMapper(scheme.PrioritizedVersionsForGroup(group))
+	for _, gv := range scheme.PrioritizedVersionsForGroup(group) {
+		for kind := range scheme.KnownTypes(gv) {
+			if ignoredKinds.Has(kind) {
+				continue
+			}
+			scope := meta.RESTScopeNamespace
+			if rootScopedKinds[gv.WithKind(kind).GroupKind()] {
+				scope = meta.RESTScopeRoot
+			}
+			mapper.Add(gv.WithKind(kind), scope)
+		}
+	}
+
+	return mapper
+}
+
+// hardcoded is good enough for the test we're running
+var rootScopedKinds = map[schema.GroupKind]bool{
+	{Group: "admission.k8s.io", Kind: "AdmissionReview"}: true,
+
+	{Group: "admissionregistration.k8s.io", Kind: "ValidatingWebhookConfiguration"}: true,
+	{Group: "admissionregistration.k8s.io", Kind: "MutatingWebhookConfiguration"}:   true,
+
+	{Group: "authentication.k8s.io", Kind: "TokenReview"}: true,
+
+	{Group: "authorization.k8s.io", Kind: "SubjectAccessReview"}:     true,
+	{Group: "authorization.k8s.io", Kind: "SelfSubjectAccessReview"}: true,
+	{Group: "authorization.k8s.io", Kind: "SelfSubjectRulesReview"}:  true,
+
+	{Group: "certificates.k8s.io", Kind: "CertificateSigningRequest"}: true,
+
+	{Group: "", Kind: "Node"}:             true,
+	{Group: "", Kind: "Namespace"}:        true,
+	{Group: "", Kind: "PersistentVolume"}: true,
+	{Group: "", Kind: "ComponentStatus"}:  true,
+
+	{Group: "rbac.authorization.k8s.io", Kind: "ClusterRole"}:        true,
+	{Group: "rbac.authorization.k8s.io", Kind: "ClusterRoleBinding"}: true,
+
+	{Group: "scheduling.k8s.io", Kind: "PriorityClass"}: true,
+
+	{Group: "storage.k8s.io", Kind: "StorageClass"}:     true,
+	{Group: "storage.k8s.io", Kind: "VolumeAttachment"}: true,
+
+	{Group: "apiextensions.k8s.io", Kind: "CustomResourceDefinition"}: true,
+
+	{Group: "apiserver.k8s.io", Kind: "AdmissionConfiguration"}: true,
+
+	{Group: "audit.k8s.io", Kind: "Event"}:  true,
+	{Group: "audit.k8s.io", Kind: "Policy"}: true,
+
+	{Group: "apiregistration.k8s.io", Kind: "APIService"}: true,
+
+	{Group: "metrics.k8s.io", Kind: "NodeMetrics"}: true,
+
+	{Group: "wardle.example.com", Kind: "Fischer"}: true,
+}
+
+// hardcoded is good enough for the test we're running
+var ignoredKinds = sets.NewString(
+	"ListOptions",
+	"DeleteOptions",
+	"Status",
+	"PodLogOptions",
+	"PodExecOptions",
+	"PodAttachOptions",
+	"PodPortForwardOptions",
+	"PodProxyOptions",
+	"NodeProxyOptions",
+	"ServiceProxyOptions",
+)

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

@@ -0,0 +1,102 @@
+/*
+Copyright 2024 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 operation
+
+import (
+	"slices"
+	"strings"
+)
+
+// Operation provides contextual information about a validation request and the API
+// operation being validated.
+// This type is intended for use with generate validation code and may be enhanced
+// in the future to include other information needed to validate requests.
+type Operation struct {
+	// Type is the category of operation being validated.  This does not
+	// differentiate between HTTP verbs like PUT and PATCH, but rather merges
+	// those into a single "Update" category.
+	Type Type
+
+	// Options declare the options enabled for validation.
+	//
+	// Options should be set according to a resource validation strategy before validation
+	// is performed, and must be treated as read-only during validation.
+	//
+	// Options are identified by string names. Option string names may match the name of a feature
+	// gate, in which case the presence of the name in the set indicates that the feature is
+	// considered enabled for the resource being validated.  Note that a resource may have a
+	// feature enabled even when the feature gate is disabled. This can happen when feature is
+	// already in-use by a resource, often because the feature gate was enabled when the
+	// resource first began using the feature.
+	//
+	// Unset options are disabled/false.
+	Options []string
+
+	// Request provides information about the request being validated.
+	Request Request
+}
+
+// HasOption returns true if the given string is in the Options slice.
+func (o Operation) HasOption(option string) bool {
+	return slices.Contains(o.Options, option)
+}
+
+// Request provides information about the request being validated.
+type Request struct {
+	// Subresources identifies the subresource path components of the request. For
+	// example, Subresources for a request to `/api/v1/pods/my-pod/status` would be
+	// `["status"]`. For `/api/v1/widget/my-widget/x/y/z`, it would be `["x", "y",
+	// "z"]`. For a root resource (`/api/v1/pods/my-pod`), Subresources will be an
+	// empty slice.
+	//
+	// Validation logic should only consult this field if the validation rules for a
+	// particular field differ depending on whether the main resource or a specific
+	// subresource is being accessed. For example:
+	//
+	// Updates to a Pod resource (`/`) normally cannot change container resource
+	// requests/limits after the Pod is created (they are immutable). However, when
+	// accessing the Pod's "resize" subresource (`/resize`), these specific fields
+	// are allowed to be modified. In this scenario, the validation logic for
+	// `spec.container[*].resources` must check `Subresources` to permit changes only
+	// when the request targets the "resize" subresource.
+	//
+	// Note: This field should not be used to control which fields a subresource
+	// operation is allowed to write. This is the responsibility of "field wiping".
+	// Field wiping logic is expected to be handled in resource strategies by
+	// modifying the incoming object before it is validated.
+	Subresources []string
+}
+
+// SubresourcePath returns the path is a slash-separated list of subresource
+// names. For example, `/status`, `/resize`, or `/x/y/z`.
+func (r Request) SubresourcePath() string {
+	if len(r.Subresources) == 0 {
+		return "/"
+	}
+	return "/" + strings.Join(r.Subresources, "/")
+}
+
+// Code is the request operation to be validated.
+type Type uint32
+
+const (
+	// Create indicates the request being validated is for a resource create operation.
+	Create Type = iota
+
+	// Update indicates the request being validated is for a resource update operation.
+	Update
+)

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

@@ -0,0 +1,10 @@
+# See the OWNERS docs at https://go.k8s.io/owners
+
+reviewers:
+  - thockin
+  - smarterclayton
+  - wojtek-t
+  - derekwaynecarr
+  - mikedanese
+  - saad-ali
+  - janetkuo

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

@@ -0,0 +1,337 @@
+/*
+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 resource
+
+import (
+	"math/big"
+	"strconv"
+
+	inf "gopkg.in/inf.v0"
+)
+
+// Scale is used for getting and setting the base-10 scaled value.
+// Base-2 scales are omitted for mathematical simplicity.
+// See Quantity.ScaledValue for more details.
+type Scale int32
+
+// infScale adapts a Scale value to an inf.Scale value.
+func (s Scale) infScale() inf.Scale {
+	return inf.Scale(-s) // inf.Scale is upside-down
+}
+
+const (
+	Nano  Scale = -9
+	Micro Scale = -6
+	Milli Scale = -3
+	Kilo  Scale = 3
+	Mega  Scale = 6
+	Giga  Scale = 9
+	Tera  Scale = 12
+	Peta  Scale = 15
+	Exa   Scale = 18
+)
+
+var (
+	Zero = int64Amount{}
+
+	// Used by quantity strings - treat as read only
+	zeroBytes = []byte("0")
+)
+
+// int64Amount represents a fixed precision numerator and arbitrary scale exponent. It is faster
+// than operations on inf.Dec for values that can be represented as int64.
+// +k8s:openapi-gen=true
+type int64Amount struct {
+	value int64
+	scale Scale
+}
+
+// Sign returns 0 if the value is zero, -1 if it is less than 0, or 1 if it is greater than 0.
+func (a int64Amount) Sign() int {
+	switch {
+	case a.value == 0:
+		return 0
+	case a.value > 0:
+		return 1
+	default:
+		return -1
+	}
+}
+
+// AsInt64 returns the current amount as an int64 at scale 0, or false if the value cannot be
+// represented in an int64 OR would result in a loss of precision. This method is intended as
+// an optimization to avoid calling AsDec.
+func (a int64Amount) AsInt64() (int64, bool) {
+	if a.scale == 0 {
+		return a.value, true
+	}
+	if a.scale < 0 {
+		// TODO: attempt to reduce factors, although it is assumed that factors are reduced prior
+		// to the int64Amount being created.
+		return 0, false
+	}
+	return positiveScaleInt64(a.value, a.scale)
+}
+
+// AsScaledInt64 returns an int64 representing the value of this amount at the specified scale,
+// rounding up, or false if that would result in overflow. (1e20).AsScaledInt64(1) would result
+// in overflow because 1e19 is not representable as an int64. Note that setting a scale larger
+// than the current value may result in loss of precision - i.e. (1e-6).AsScaledInt64(0) would
+// return 1, because 0.000001 is rounded up to 1.
+func (a int64Amount) AsScaledInt64(scale Scale) (result int64, ok bool) {
+	if a.scale < scale {
+		result, _ = negativeScaleInt64(a.value, scale-a.scale)
+		return result, true
+	}
+	return positiveScaleInt64(a.value, a.scale-scale)
+}
+
+// AsDec returns an inf.Dec representation of this value.
+func (a int64Amount) AsDec() *inf.Dec {
+	var base inf.Dec
+	base.SetUnscaled(a.value)
+	base.SetScale(inf.Scale(-a.scale))
+	return &base
+}
+
+// Cmp returns 0 if a and b are equal, 1 if a is greater than b, or -1 if a is less than b.
+func (a int64Amount) Cmp(b int64Amount) int {
+	switch {
+	case a.scale == b.scale:
+		// compare only the unscaled portion
+	case a.scale > b.scale:
+		result, remainder, exact := divideByScaleInt64(b.value, a.scale-b.scale)
+		if !exact {
+			return a.AsDec().Cmp(b.AsDec())
+		}
+		if result == a.value {
+			switch {
+			case remainder == 0:
+				return 0
+			case remainder > 0:
+				return -1
+			default:
+				return 1
+			}
+		}
+		b.value = result
+	default:
+		result, remainder, exact := divideByScaleInt64(a.value, b.scale-a.scale)
+		if !exact {
+			return a.AsDec().Cmp(b.AsDec())
+		}
+		if result == b.value {
+			switch {
+			case remainder == 0:
+				return 0
+			case remainder > 0:
+				return 1
+			default:
+				return -1
+			}
+		}
+		a.value = result
+	}
+
+	switch {
+	case a.value == b.value:
+		return 0
+	case a.value < b.value:
+		return -1
+	default:
+		return 1
+	}
+}
+
+// Add adds two int64Amounts together, matching scales. It will return false and not mutate
+// a if overflow or underflow would result.
+func (a *int64Amount) Add(b int64Amount) bool {
+	switch {
+	case b.value == 0:
+		return true
+	case a.value == 0:
+		a.value = b.value
+		a.scale = b.scale
+		return true
+	case a.scale == b.scale:
+		c, ok := int64Add(a.value, b.value)
+		if !ok {
+			return false
+		}
+		a.value = c
+	case a.scale > b.scale:
+		c, ok := positiveScaleInt64(a.value, a.scale-b.scale)
+		if !ok {
+			return false
+		}
+		c, ok = int64Add(c, b.value)
+		if !ok {
+			return false
+		}
+		a.scale = b.scale
+		a.value = c
+	default:
+		c, ok := positiveScaleInt64(b.value, b.scale-a.scale)
+		if !ok {
+			return false
+		}
+		c, ok = int64Add(a.value, c)
+		if !ok {
+			return false
+		}
+		a.value = c
+	}
+	return true
+}
+
+// Sub removes the value of b from the current amount, or returns false if underflow would result.
+func (a *int64Amount) Sub(b int64Amount) bool {
+	return a.Add(int64Amount{value: -b.value, scale: b.scale})
+}
+
+// Mul multiplies the provided b to the current amount, or
+// returns false if overflow or underflow would result.
+func (a *int64Amount) Mul(b int64) bool {
+	switch {
+	case a.value == 0:
+		return true
+	case b == 0:
+		a.value = 0
+		a.scale = 0
+		return true
+	case a.scale == 0:
+		c, ok := int64Multiply(a.value, b)
+		if !ok {
+			return false
+		}
+		a.value = c
+	case a.scale > 0:
+		c, ok := int64Multiply(a.value, b)
+		if !ok {
+			return false
+		}
+		if _, ok = positiveScaleInt64(c, a.scale); !ok {
+			return false
+		}
+		a.value = c
+	default:
+		c, ok := int64Multiply(a.value, b)
+		if !ok {
+			return false
+		}
+		if _, ok = negativeScaleInt64(c, -a.scale); !ok {
+			return false
+		}
+		a.value = c
+	}
+	return true
+}
+
+// AsScale adjusts this amount to set a minimum scale, rounding up, and returns true iff no precision
+// was lost. (1.1e5).AsScale(5) would return 1.1e5, but (1.1e5).AsScale(6) would return 1e6.
+func (a int64Amount) AsScale(scale Scale) (int64Amount, bool) {
+	if a.scale >= scale {
+		return a, true
+	}
+	result, exact := negativeScaleInt64(a.value, scale-a.scale)
+	return int64Amount{value: result, scale: scale}, exact
+}
+
+// AsCanonicalBytes accepts a buffer to write the base-10 string value of this field to, and returns
+// either that buffer or a larger buffer and the current exponent of the value. The value is adjusted
+// until the exponent is a multiple of 3 - i.e. 1.1e5 would return "110", 3.
+func (a int64Amount) AsCanonicalBytes(out []byte) (result []byte, exponent int32) {
+	mantissa := a.value
+	exponent = int32(a.scale)
+
+	amount, times := removeInt64Factors(mantissa, 10)
+	exponent += int32(times)
+
+	// make sure exponent is a multiple of 3
+	var ok bool
+	switch exponent % 3 {
+	case 1, -2:
+		amount, ok = int64MultiplyScale10(amount)
+		if !ok {
+			return infDecAmount{a.AsDec()}.AsCanonicalBytes(out)
+		}
+		exponent = exponent - 1
+	case 2, -1:
+		amount, ok = int64MultiplyScale100(amount)
+		if !ok {
+			return infDecAmount{a.AsDec()}.AsCanonicalBytes(out)
+		}
+		exponent = exponent - 2
+	}
+	return strconv.AppendInt(out, amount, 10), exponent
+}
+
+// AsCanonicalBase1024Bytes accepts a buffer to write the base-1024 string value of this field to, and returns
+// either that buffer or a larger buffer and the current exponent of the value. 2048 is 2 * 1024 ^ 1 and would
+// return []byte("2048"), 1.
+func (a int64Amount) AsCanonicalBase1024Bytes(out []byte) (result []byte, exponent int32) {
+	value, ok := a.AsScaledInt64(0)
+	if !ok {
+		return infDecAmount{a.AsDec()}.AsCanonicalBase1024Bytes(out)
+	}
+	amount, exponent := removeInt64Factors(value, 1024)
+	return strconv.AppendInt(out, amount, 10), exponent
+}
+
+// infDecAmount implements common operations over an inf.Dec that are specific to the quantity
+// representation.
+type infDecAmount struct {
+	*inf.Dec
+}
+
+// AsScale adjusts this amount to set a minimum scale, rounding up, and returns true iff no precision
+// was lost. (1.1e5).AsScale(5) would return 1.1e5, but (1.1e5).AsScale(6) would return 1e6.
+func (a infDecAmount) AsScale(scale Scale) (infDecAmount, bool) {
+	tmp := &inf.Dec{}
+	tmp.Round(a.Dec, scale.infScale(), inf.RoundUp)
+	return infDecAmount{tmp}, tmp.Cmp(a.Dec) == 0
+}
+
+// AsCanonicalBytes accepts a buffer to write the base-10 string value of this field to, and returns
+// either that buffer or a larger buffer and the current exponent of the value. The value is adjusted
+// until the exponent is a multiple of 3 - i.e. 1.1e5 would return "110", 3.
+func (a infDecAmount) AsCanonicalBytes(out []byte) (result []byte, exponent int32) {
+	mantissa := a.Dec.UnscaledBig()
+	exponent = int32(-a.Dec.Scale())
+	amount := big.NewInt(0).Set(mantissa)
+	// move all factors of 10 into the exponent for easy reasoning
+	amount, times := removeBigIntFactors(amount, bigTen)
+	exponent += times
+
+	// make sure exponent is a multiple of 3
+	for exponent%3 != 0 {
+		amount.Mul(amount, bigTen)
+		exponent--
+	}
+
+	return append(out, amount.String()...), exponent
+}
+
+// AsCanonicalBase1024Bytes accepts a buffer to write the base-1024 string value of this field to, and returns
+// either that buffer or a larger buffer and the current exponent of the value. 2048 is 2 * 1024 ^ 1 and would
+// return []byte("2048"), 1.
+func (a infDecAmount) AsCanonicalBase1024Bytes(out []byte) (result []byte, exponent int32) {
+	tmp := &inf.Dec{}
+	tmp.Round(a.Dec, 0, inf.RoundUp)
+	amount, exponent := removeBigIntFactors(tmp.UnscaledBig(), big1024)
+	return append(out, amount.String()...), exponent
+}

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

@@ -0,0 +1,24 @@
+/*
+Copyright 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.
+*/
+
+// Code generated by protoc-gen-gogo. DO NOT EDIT.
+// source: k8s.io/apimachinery/pkg/api/resource/generated.proto
+
+package resource
+
+func (m *Quantity) Reset() { *m = Quantity{} }
+
+func (m *QuantityValue) Reset() { *m = QuantityValue{} }

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

@@ -0,0 +1,113 @@
+/*
+Copyright 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.
+*/
+
+
+// This file was autogenerated by go-to-protobuf. Do not edit it manually!
+
+syntax = "proto2";
+
+package k8s.io.apimachinery.pkg.api.resource;
+
+// Package-wide variables from generator "generated".
+option go_package = "k8s.io/apimachinery/pkg/api/resource";
+
+// Quantity is a fixed-point representation of a number.
+// It provides convenient marshaling/unmarshaling in JSON and YAML,
+// in addition to String() and AsInt64() accessors.
+//
+// The serialization format is:
+//
+// ```
+// <quantity>        ::= <signedNumber><suffix>
+//
+// 	(Note that <suffix> may be empty, from the "" case in <decimalSI>.)
+//
+// <digit>           ::= 0 | 1 | ... | 9
+// <digits>          ::= <digit> | <digit><digits>
+// <number>          ::= <digits> | <digits>.<digits> | <digits>. | .<digits>
+// <sign>            ::= "+" | "-"
+// <signedNumber>    ::= <number> | <sign><number>
+// <suffix>          ::= <binarySI> | <decimalExponent> | <decimalSI>
+// <binarySI>        ::= Ki | Mi | Gi | Ti | Pi | Ei
+//
+// 	(International System of units; See: http://physics.nist.gov/cuu/Units/binary.html)
+//
+// <decimalSI>       ::= m | "" | k | M | G | T | P | E
+//
+// 	(Note that 1024 = 1Ki but 1000 = 1k; I didn't choose the capitalization.)
+//
+// <decimalExponent> ::= "e" <signedNumber> | "E" <signedNumber>
+// ```
+//
+// No matter which of the three exponent forms is used, no quantity may represent
+// a number greater than 2^63-1 in magnitude, nor may it have more than 3 decimal
+// places. Numbers larger or more precise will be capped or rounded up.
+// (E.g.: 0.1m will rounded up to 1m.)
+// This may be extended in the future if we require larger or smaller quantities.
+//
+// When a Quantity is parsed from a string, it will remember the type of suffix
+// it had, and will use the same type again when it is serialized.
+//
+// Before serializing, Quantity will be put in "canonical form".
+// This means that Exponent/suffix will be adjusted up or down (with a
+// corresponding increase or decrease in Mantissa) such that:
+//
+// - No precision is lost
+// - No fractional digits will be emitted
+// - The exponent (or suffix) is as large as possible.
+//
+// The sign will be omitted unless the number is negative.
+//
+// Examples:
+//
+// - 1.5 will be serialized as "1500m"
+// - 1.5Gi will be serialized as "1536Mi"
+//
+// Note that the quantity will NEVER be internally represented by a
+// floating point number. That is the whole point of this exercise.
+//
+// Non-canonical values will still parse as long as they are well formed,
+// but will be re-emitted in their canonical form. (So always use canonical
+// form, or don't diff.)
+//
+// This format is intended to make it difficult to use these numbers without
+// writing some sort of special handling code in the hopes that that will
+// cause implementors to also use a fixed point implementation.
+//
+// +protobuf=true
+// +protobuf.embed=string
+// +protobuf.options.marshal=false
+// +protobuf.options.(gogoproto.goproto_stringer)=false
+// +k8s:deepcopy-gen=true
+// +k8s:openapi-gen=true
+// +k8s:openapi-model-package=io.k8s.apimachinery.pkg.api.resource
+message Quantity {
+  optional string string = 1;
+}
+
+// QuantityValue makes it possible to use a Quantity as value for a command
+// line parameter.
+//
+// +protobuf=true
+// +protobuf.embed=string
+// +protobuf.options.marshal=false
+// +protobuf.options.(gogoproto.goproto_stringer)=false
+// +k8s:deepcopy-gen=true
+// +k8s:openapi-model-package=io.k8s.apimachinery.pkg.api.resource
+message QuantityValue {
+  optional string string = 1;
+}
+

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

@@ -0,0 +1,26 @@
+//go:build kubernetes_protomessage_one_more_release
+// +build kubernetes_protomessage_one_more_release
+
+/*
+Copyright 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.
+*/
+
+// Code generated by go-to-protobuf. DO NOT EDIT.
+
+package resource
+
+func (*Quantity) ProtoMessage() {}
+
+func (*QuantityValue) ProtoMessage() {}

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

@@ -0,0 +1,310 @@
+/*
+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 resource
+
+import (
+	"math/big"
+
+	inf "gopkg.in/inf.v0"
+)
+
+const (
+	// maxInt64Factors is the highest value that will be checked when removing factors of 10 from an int64.
+	// It is also the maximum decimal digits that can be represented with an int64.
+	maxInt64Factors = 18
+)
+
+var (
+	// Commonly needed big.Int values-- treat as read only!
+	bigTen      = big.NewInt(10)
+	bigZero     = big.NewInt(0)
+	bigOne      = big.NewInt(1)
+	bigThousand = big.NewInt(1000)
+	big1024     = big.NewInt(1024)
+
+	// Commonly needed inf.Dec values-- treat as read only!
+	decZero = inf.NewDec(0, 0)
+	decOne  = inf.NewDec(1, 0)
+
+	// Largest (in magnitude) number allowed.
+	maxAllowed = infDecAmount{inf.NewDec((1<<63)-1, 0)} // == max int64
+
+	// The maximum value we can represent milli-units for.
+	// Compare with the return value of Quantity.Value() to
+	// see if it's safe to use Quantity.MilliValue().
+	MaxMilliValue = int64(((1 << 63) - 1) / 1000)
+)
+
+const mostNegative = -(mostPositive + 1)
+const mostPositive = 1<<63 - 1
+
+// int64Add returns a+b, or false if that would overflow int64.
+func int64Add(a, b int64) (int64, bool) {
+	c := a + b
+	switch {
+	case a > 0 && b > 0:
+		if c < 0 {
+			return 0, false
+		}
+	case a < 0 && b < 0:
+		if c > 0 {
+			return 0, false
+		}
+		if a == mostNegative && b == mostNegative {
+			return 0, false
+		}
+	}
+	return c, true
+}
+
+// int64Multiply returns a*b, or false if that would overflow or underflow int64.
+func int64Multiply(a, b int64) (int64, bool) {
+	if a == 0 || b == 0 || a == 1 || b == 1 {
+		return a * b, true
+	}
+	if a == mostNegative || b == mostNegative {
+		return 0, false
+	}
+	c := a * b
+	return c, c/b == a
+}
+
+// int64MultiplyScale returns a*b, assuming b is greater than one, or false if that would overflow or underflow int64.
+// Use when b is known to be greater than one.
+func int64MultiplyScale(a int64, b int64) (int64, bool) {
+	if a == 0 || a == 1 {
+		return a * b, true
+	}
+	if a == mostNegative && b != 1 {
+		return 0, false
+	}
+	c := a * b
+	return c, c/b == a
+}
+
+// int64MultiplyScale10 multiplies a by 10, or returns false if that would overflow. This method is faster than
+// int64Multiply(a, 10) because the compiler can optimize constant factor multiplication.
+func int64MultiplyScale10(a int64) (int64, bool) {
+	if a == 0 || a == 1 {
+		return a * 10, true
+	}
+	if a == mostNegative {
+		return 0, false
+	}
+	c := a * 10
+	return c, c/10 == a
+}
+
+// int64MultiplyScale100 multiplies a by 100, or returns false if that would overflow. This method is faster than
+// int64Multiply(a, 100) because the compiler can optimize constant factor multiplication.
+func int64MultiplyScale100(a int64) (int64, bool) {
+	if a == 0 || a == 1 {
+		return a * 100, true
+	}
+	if a == mostNegative {
+		return 0, false
+	}
+	c := a * 100
+	return c, c/100 == a
+}
+
+// int64MultiplyScale1000 multiplies a by 1000, or returns false if that would overflow. This method is faster than
+// int64Multiply(a, 1000) because the compiler can optimize constant factor multiplication.
+func int64MultiplyScale1000(a int64) (int64, bool) {
+	if a == 0 || a == 1 {
+		return a * 1000, true
+	}
+	if a == mostNegative {
+		return 0, false
+	}
+	c := a * 1000
+	return c, c/1000 == a
+}
+
+// positiveScaleInt64 multiplies base by 10^scale, returning false if the
+// value overflows. Passing a negative scale is undefined.
+func positiveScaleInt64(base int64, scale Scale) (int64, bool) {
+	switch scale {
+	case 0:
+		return base, true
+	case 1:
+		return int64MultiplyScale10(base)
+	case 2:
+		return int64MultiplyScale100(base)
+	case 3:
+		return int64MultiplyScale1000(base)
+	case 6:
+		return int64MultiplyScale(base, 1000000)
+	case 9:
+		return int64MultiplyScale(base, 1000000000)
+	default:
+		value := base
+		var ok bool
+		for i := Scale(0); i < scale; i++ {
+			if value, ok = int64MultiplyScale(value, 10); !ok {
+				return 0, false
+			}
+		}
+		return value, true
+	}
+}
+
+// negativeScaleInt64 reduces base by the provided scale, rounding up, until the
+// value is zero or the scale is reached. Passing a negative scale is undefined.
+// The value returned, if not exact, is rounded away from zero.
+func negativeScaleInt64(base int64, scale Scale) (result int64, exact bool) {
+	if scale == 0 {
+		return base, true
+	}
+
+	value := base
+	var fraction bool
+	for i := Scale(0); i < scale; i++ {
+		if !fraction && value%10 != 0 {
+			fraction = true
+		}
+		value = value / 10
+		if value == 0 {
+			if fraction {
+				if base > 0 {
+					return 1, false
+				}
+				return -1, false
+			}
+			return 0, true
+		}
+	}
+	if fraction {
+		if base > 0 {
+			value++
+		} else {
+			value--
+		}
+	}
+	return value, !fraction
+}
+
+func pow10Int64(b int64) int64 {
+	switch b {
+	case 0:
+		return 1
+	case 1:
+		return 10
+	case 2:
+		return 100
+	case 3:
+		return 1000
+	case 4:
+		return 10000
+	case 5:
+		return 100000
+	case 6:
+		return 1000000
+	case 7:
+		return 10000000
+	case 8:
+		return 100000000
+	case 9:
+		return 1000000000
+	case 10:
+		return 10000000000
+	case 11:
+		return 100000000000
+	case 12:
+		return 1000000000000
+	case 13:
+		return 10000000000000
+	case 14:
+		return 100000000000000
+	case 15:
+		return 1000000000000000
+	case 16:
+		return 10000000000000000
+	case 17:
+		return 100000000000000000
+	case 18:
+		return 1000000000000000000
+	default:
+		return 0
+	}
+}
+
+// negativeScaleInt64 returns the result of dividing base by scale * 10 and the remainder, or
+// false if no such division is possible. Dividing by negative scales is undefined.
+func divideByScaleInt64(base int64, scale Scale) (result, remainder int64, exact bool) {
+	if scale == 0 {
+		return base, 0, true
+	}
+	// the max scale representable in base 10 in an int64 is 18 decimal places
+	if scale >= 18 {
+		return 0, base, false
+	}
+	divisor := pow10Int64(int64(scale))
+	return base / divisor, base % divisor, true
+}
+
+// removeInt64Factors divides in a loop; the return values have the property that
+// value == result * base ^ scale
+func removeInt64Factors(value int64, base int64) (result int64, times int32) {
+	times = 0
+	result = value
+	negative := result < 0
+	if negative {
+		result = -result
+	}
+	switch base {
+	// allow the compiler to optimize the common cases
+	case 10:
+		for result >= 10 && result%10 == 0 {
+			times++
+			result = result / 10
+		}
+	// allow the compiler to optimize the common cases
+	case 1024:
+		for result >= 1024 && result%1024 == 0 {
+			times++
+			result = result / 1024
+		}
+	default:
+		for result >= base && result%base == 0 {
+			times++
+			result = result / base
+		}
+	}
+	if negative {
+		result = -result
+	}
+	return result, times
+}
+
+// removeBigIntFactors divides in a loop; the return values have the property that
+// d == result * factor ^ times
+// d may be modified in place.
+// If d == 0, then the return values will be (0, 0)
+func removeBigIntFactors(d, factor *big.Int) (result *big.Int, times int32) {
+	q := big.NewInt(0)
+	m := big.NewInt(0)
+	for d.Cmp(bigZero) != 0 {
+		q.DivMod(d, factor, m)
+		if m.Cmp(bigZero) != 0 {
+			break
+		}
+		times++
+		d, q = q, d
+	}
+	return d, times
+}

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

@@ -0,0 +1,880 @@
+/*
+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 resource
+
+import (
+	"bytes"
+	"errors"
+	"fmt"
+	math "math"
+	"math/big"
+	"strconv"
+	"strings"
+
+	cbor "k8s.io/apimachinery/pkg/runtime/serializer/cbor/direct"
+
+	inf "gopkg.in/inf.v0"
+)
+
+// Quantity is a fixed-point representation of a number.
+// It provides convenient marshaling/unmarshaling in JSON and YAML,
+// in addition to String() and AsInt64() accessors.
+//
+// The serialization format is:
+//
+// ```
+// <quantity>        ::= <signedNumber><suffix>
+//
+//	(Note that <suffix> may be empty, from the "" case in <decimalSI>.)
+//
+// <digit>           ::= 0 | 1 | ... | 9
+// <digits>          ::= <digit> | <digit><digits>
+// <number>          ::= <digits> | <digits>.<digits> | <digits>. | .<digits>
+// <sign>            ::= "+" | "-"
+// <signedNumber>    ::= <number> | <sign><number>
+// <suffix>          ::= <binarySI> | <decimalExponent> | <decimalSI>
+// <binarySI>        ::= Ki | Mi | Gi | Ti | Pi | Ei
+//
+//	(International System of units; See: http://physics.nist.gov/cuu/Units/binary.html)
+//
+// <decimalSI>       ::= m | "" | k | M | G | T | P | E
+//
+//	(Note that 1024 = 1Ki but 1000 = 1k; I didn't choose the capitalization.)
+//
+// <decimalExponent> ::= "e" <signedNumber> | "E" <signedNumber>
+// ```
+//
+// No matter which of the three exponent forms is used, no quantity may represent
+// a number greater than 2^63-1 in magnitude, nor may it have more than 3 decimal
+// places. Numbers larger or more precise will be capped or rounded up.
+// (E.g.: 0.1m will rounded up to 1m.)
+// This may be extended in the future if we require larger or smaller quantities.
+//
+// When a Quantity is parsed from a string, it will remember the type of suffix
+// it had, and will use the same type again when it is serialized.
+//
+// Before serializing, Quantity will be put in "canonical form".
+// This means that Exponent/suffix will be adjusted up or down (with a
+// corresponding increase or decrease in Mantissa) such that:
+//
+// - No precision is lost
+// - No fractional digits will be emitted
+// - The exponent (or suffix) is as large as possible.
+//
+// The sign will be omitted unless the number is negative.
+//
+// Examples:
+//
+// - 1.5 will be serialized as "1500m"
+// - 1.5Gi will be serialized as "1536Mi"
+//
+// Note that the quantity will NEVER be internally represented by a
+// floating point number. That is the whole point of this exercise.
+//
+// Non-canonical values will still parse as long as they are well formed,
+// but will be re-emitted in their canonical form. (So always use canonical
+// form, or don't diff.)
+//
+// This format is intended to make it difficult to use these numbers without
+// writing some sort of special handling code in the hopes that that will
+// cause implementors to also use a fixed point implementation.
+//
+// +protobuf=true
+// +protobuf.embed=string
+// +protobuf.options.marshal=false
+// +protobuf.options.(gogoproto.goproto_stringer)=false
+// +k8s:deepcopy-gen=true
+// +k8s:openapi-gen=true
+// +k8s:openapi-model-package=io.k8s.apimachinery.pkg.api.resource
+type Quantity struct {
+	// i is the quantity in int64 scaled form, if d.Dec == nil
+	i int64Amount
+	// d is the quantity in inf.Dec form if d.Dec != nil
+	d infDecAmount
+	// s is the generated value of this quantity to avoid recalculation
+	s string
+
+	// Change Format at will. See the comment for Canonicalize for
+	// more details.
+	Format
+}
+
+// CanonicalValue allows a quantity amount to be converted to a string.
+type CanonicalValue interface {
+	// AsCanonicalBytes returns a byte array representing the string representation
+	// of the value mantissa and an int32 representing its exponent in base-10. Callers may
+	// pass a byte slice to the method to avoid allocations.
+	AsCanonicalBytes(out []byte) ([]byte, int32)
+	// AsCanonicalBase1024Bytes returns a byte array representing the string representation
+	// of the value mantissa and an int32 representing its exponent in base-1024. Callers
+	// may pass a byte slice to the method to avoid allocations.
+	AsCanonicalBase1024Bytes(out []byte) ([]byte, int32)
+}
+
+// Format lists the three possible formattings of a quantity.
+type Format string
+
+const (
+	DecimalExponent = Format("DecimalExponent") // e.g., 12e6
+	BinarySI        = Format("BinarySI")        // e.g., 12Mi (12 * 2^20)
+	DecimalSI       = Format("DecimalSI")       // e.g., 12M  (12 * 10^6)
+)
+
+// MustParse turns the given string into a quantity or panics; for tests
+// or other cases where you know the string is valid.
+func MustParse(str string) Quantity {
+	q, err := ParseQuantity(str)
+	if err != nil {
+		panic(fmt.Errorf("cannot parse '%v': %v", str, err))
+	}
+	return q
+}
+
+const (
+	// splitREString is used to separate a number from its suffix; as such,
+	// this is overly permissive, but that's OK-- it will be checked later.
+	splitREString = "^([+-]?[0-9.]+)([eEinumkKMGTP]*[-+]?[0-9]*)$"
+)
+
+var (
+	// Errors that could happen while parsing a string.
+	ErrFormatWrong = errors.New("quantities must match the regular expression '" + splitREString + "'")
+	ErrNumeric     = errors.New("unable to parse numeric part of quantity")
+	ErrSuffix      = errors.New("unable to parse quantity's suffix")
+)
+
+// parseQuantityString is a fast scanner for quantity values.
+func parseQuantityString(str string) (positive bool, value, num, denom, suffix string, err error) {
+	positive = true
+	pos := 0
+	end := len(str)
+
+	// handle leading sign
+	if pos < end {
+		switch str[0] {
+		case '-':
+			positive = false
+			pos++
+		case '+':
+			pos++
+		}
+	}
+
+	// strip leading zeros
+Zeroes:
+	for i := pos; ; i++ {
+		if i >= end {
+			num = "0"
+			value = num
+			return
+		}
+		switch str[i] {
+		case '0':
+			pos++
+		default:
+			break Zeroes
+		}
+	}
+
+	// extract the numerator
+Num:
+	for i := pos; ; i++ {
+		if i >= end {
+			num = str[pos:end]
+			value = str[0:end]
+			return
+		}
+		switch str[i] {
+		case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
+		default:
+			num = str[pos:i]
+			pos = i
+			break Num
+		}
+	}
+
+	// if we stripped all numerator positions, always return 0
+	if len(num) == 0 {
+		num = "0"
+	}
+
+	// handle a denominator
+	if pos < end && str[pos] == '.' {
+		pos++
+	Denom:
+		for i := pos; ; i++ {
+			if i >= end {
+				denom = str[pos:end]
+				value = str[0:end]
+				return
+			}
+			switch str[i] {
+			case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
+			default:
+				denom = str[pos:i]
+				pos = i
+				break Denom
+			}
+		}
+		// TODO: we currently allow 1.G, but we may not want to in the future.
+		// if len(denom) == 0 {
+		// 	err = ErrFormatWrong
+		// 	return
+		// }
+	}
+	value = str[0:pos]
+
+	// grab the elements of the suffix
+	suffixStart := pos
+	for i := pos; ; i++ {
+		if i >= end {
+			suffix = str[suffixStart:end]
+			return
+		}
+		if !strings.ContainsAny(str[i:i+1], "eEinumkKMGTP") {
+			pos = i
+			break
+		}
+	}
+	if pos < end {
+		switch str[pos] {
+		case '-', '+':
+			pos++
+		}
+	}
+Suffix:
+	for i := pos; ; i++ {
+		if i >= end {
+			suffix = str[suffixStart:end]
+			return
+		}
+		switch str[i] {
+		case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
+		default:
+			break Suffix
+		}
+	}
+	// we encountered a non decimal in the Suffix loop, but the last character
+	// was not a valid exponent
+	err = ErrFormatWrong
+	return
+}
+
+// ParseQuantity turns str into a Quantity, or returns an error.
+func ParseQuantity(str string) (Quantity, error) {
+	if len(str) == 0 {
+		return Quantity{}, ErrFormatWrong
+	}
+	if str == "0" {
+		return Quantity{Format: DecimalSI, s: str}, nil
+	}
+
+	positive, value, num, denom, suf, err := parseQuantityString(str)
+	if err != nil {
+		return Quantity{}, err
+	}
+
+	base, exponent, format, ok := quantitySuffixer.interpret(suffix(suf))
+	if !ok {
+		return Quantity{}, ErrSuffix
+	}
+
+	precision := int32(0)
+	scale := int32(0)
+	mantissa := int64(1)
+	switch format {
+	case DecimalExponent, DecimalSI:
+		scale = exponent
+		precision = maxInt64Factors - int32(len(num)+len(denom))
+	case BinarySI:
+		scale = 0
+		switch {
+		case exponent >= 0 && len(denom) == 0:
+			// only handle positive binary numbers with the fast path
+			mantissa = int64(int64(mantissa) << uint64(exponent))
+			// 1Mi (2^20) has ~6 digits of decimal precision, so exponent*3/10 -1 is roughly the precision
+			precision = 15 - int32(len(num)) - int32(float32(exponent)*3/10) - 1
+		default:
+			precision = -1
+		}
+	}
+
+	if precision >= 0 {
+		// if we have a denominator, shift the entire value to the left by the number of places in the
+		// denominator
+		scale -= int32(len(denom))
+		if scale >= int32(Nano) {
+			shifted := num + denom
+
+			var value int64
+			value, err := strconv.ParseInt(shifted, 10, 64)
+			if err != nil {
+				return Quantity{}, ErrNumeric
+			}
+			if result, ok := int64Multiply(value, int64(mantissa)); ok {
+				if !positive {
+					result = -result
+				}
+				// if the number is in canonical form, reuse the string
+				switch format {
+				case BinarySI:
+					if exponent%10 == 0 && (value&0x07 != 0) {
+						return Quantity{i: int64Amount{value: result, scale: Scale(scale)}, Format: format, s: str}, nil
+					}
+				default:
+					if scale%3 == 0 && !strings.HasSuffix(shifted, "000") && shifted[0] != '0' {
+						return Quantity{i: int64Amount{value: result, scale: Scale(scale)}, Format: format, s: str}, nil
+					}
+				}
+				return Quantity{i: int64Amount{value: result, scale: Scale(scale)}, Format: format}, nil
+			}
+		}
+	}
+
+	amount := new(inf.Dec)
+	if _, ok := amount.SetString(value); !ok {
+		return Quantity{}, ErrNumeric
+	}
+
+	// So that no one but us has to think about suffixes, remove it.
+	if base == 10 {
+		amount.SetScale(amount.Scale() + Scale(exponent).infScale())
+	} else if base == 2 {
+		// numericSuffix = 2 ** exponent
+		numericSuffix := big.NewInt(1).Lsh(bigOne, uint(exponent))
+		ub := amount.UnscaledBig()
+		amount.SetUnscaledBig(ub.Mul(ub, numericSuffix))
+	}
+
+	// Cap at min/max bounds.
+	sign := amount.Sign()
+	if sign == -1 {
+		amount.Neg(amount)
+	}
+
+	// This rounds non-zero values up to the minimum representable value, under the theory that
+	// if you want some resources, you should get some resources, even if you asked for way too small
+	// of an amount.  Arguably, this should be inf.RoundHalfUp (normal rounding), but that would have
+	// the side effect of rounding values < .5n to zero.
+	if v, ok := amount.Unscaled(); v != int64(0) || !ok {
+		amount.Round(amount, Nano.infScale(), inf.RoundUp)
+	}
+
+	// The max is just a simple cap.
+	// TODO: this prevents accumulating quantities greater than int64, for instance quota across a cluster
+	if format == BinarySI && amount.Cmp(maxAllowed.Dec) > 0 {
+		amount.Set(maxAllowed.Dec)
+	}
+
+	if format == BinarySI && amount.Cmp(decOne) < 0 && amount.Cmp(decZero) > 0 {
+		// This avoids rounding and hopefully confusion, too.
+		format = DecimalSI
+	}
+	if sign == -1 {
+		amount.Neg(amount)
+	}
+
+	return Quantity{d: infDecAmount{amount}, Format: format}, nil
+}
+
+// DeepCopy returns a deep-copy of the Quantity value.  Note that the method
+// receiver is a value, so we can mutate it in-place and return it.
+func (q Quantity) DeepCopy() Quantity {
+	if q.d.Dec != nil {
+		tmp := &inf.Dec{}
+		q.d.Dec = tmp.Set(q.d.Dec)
+	}
+	return q
+}
+
+// OpenAPISchemaType is used by the kube-openapi generator when constructing
+// the OpenAPI spec of this type.
+//
+// See: https://github.com/kubernetes/kube-openapi/tree/master/pkg/generators
+func (_ Quantity) OpenAPISchemaType() []string { return []string{"string"} }
+
+// OpenAPISchemaFormat is used by the kube-openapi generator when constructing
+// the OpenAPI spec of this type.
+func (_ Quantity) OpenAPISchemaFormat() string { return "" }
+
+// OpenAPIV3OneOfTypes is used by the kube-openapi generator when constructing
+// the OpenAPI v3 spec of this type.
+func (Quantity) OpenAPIV3OneOfTypes() []string { return []string{"string", "number"} }
+
+// CanonicalizeBytes returns the canonical form of q and its suffix (see comment on Quantity).
+//
+// Note about BinarySI:
+//   - If q.Format is set to BinarySI and q.Amount represents a non-zero value between
+//     -1 and +1, it will be emitted as if q.Format were DecimalSI.
+//   - Otherwise, if q.Format is set to BinarySI, fractional parts of q.Amount will be
+//     rounded up. (1.1i becomes 2i.)
+func (q *Quantity) CanonicalizeBytes(out []byte) (result, suffix []byte) {
+	if q.IsZero() {
+		return zeroBytes, nil
+	}
+
+	var rounded CanonicalValue
+	format := q.Format
+	switch format {
+	case DecimalExponent, DecimalSI:
+	case BinarySI:
+		if q.CmpInt64(-1024) > 0 && q.CmpInt64(1024) < 0 {
+			// This avoids rounding and hopefully confusion, too.
+			format = DecimalSI
+		} else {
+			var exact bool
+			if rounded, exact = q.AsScale(0); !exact {
+				// Don't lose precision-- show as DecimalSI
+				format = DecimalSI
+			}
+		}
+	default:
+		format = DecimalExponent
+	}
+
+	// TODO: If BinarySI formatting is requested but would cause rounding, upgrade to
+	// one of the other formats.
+	switch format {
+	case DecimalExponent, DecimalSI:
+		number, exponent := q.AsCanonicalBytes(out)
+		suffix, _ := quantitySuffixer.constructBytes(10, exponent, format)
+		return number, suffix
+	default:
+		// format must be BinarySI
+		number, exponent := rounded.AsCanonicalBase1024Bytes(out)
+		suffix, _ := quantitySuffixer.constructBytes(2, exponent*10, format)
+		return number, suffix
+	}
+}
+
+// AsApproximateFloat64 returns a float64 representation of the quantity which
+// may lose precision. If precision matter more than performance, see
+// AsFloat64Slow. If the value of the quantity is outside the range of a
+// float64 +Inf/-Inf will be returned.
+func (q *Quantity) AsApproximateFloat64() float64 {
+	var base float64
+	var exponent int
+	if q.d.Dec != nil {
+		base, _ = big.NewFloat(0).SetInt(q.d.Dec.UnscaledBig()).Float64()
+		exponent = int(-q.d.Dec.Scale())
+	} else {
+		base = float64(q.i.value)
+		exponent = int(q.i.scale)
+	}
+	if exponent == 0 {
+		return base
+	}
+
+	return base * math.Pow10(exponent)
+}
+
+// AsFloat64Slow returns a float64 representation of the quantity.  This is
+// more precise than AsApproximateFloat64 but significantly slower.  If the
+// value of the quantity is outside the range of a float64 +Inf/-Inf will be
+// returned.
+func (q *Quantity) AsFloat64Slow() float64 {
+	infDec := q.AsDec()
+
+	var absScale int64
+	if infDec.Scale() < 0 {
+		absScale = int64(-infDec.Scale())
+	} else {
+		absScale = int64(infDec.Scale())
+	}
+	pow10AbsScale := big.NewInt(10)
+	pow10AbsScale = pow10AbsScale.Exp(pow10AbsScale, big.NewInt(absScale), nil)
+
+	var resultBigFloat *big.Float
+	if infDec.Scale() < 0 {
+		resultBigInt := new(big.Int).Mul(infDec.UnscaledBig(), pow10AbsScale)
+		resultBigFloat = new(big.Float).SetInt(resultBigInt)
+	} else {
+		pow10AbsScaleFloat := new(big.Float).SetInt(pow10AbsScale)
+		resultBigFloat = new(big.Float).SetInt(infDec.UnscaledBig())
+		resultBigFloat = resultBigFloat.Quo(resultBigFloat, pow10AbsScaleFloat)
+	}
+
+	result, _ := resultBigFloat.Float64()
+	return result
+}
+
+// AsInt64 returns a representation of the current value as an int64 if a fast conversion
+// is possible. If false is returned, callers must use the inf.Dec form of this quantity.
+func (q *Quantity) AsInt64() (int64, bool) {
+	if q.d.Dec != nil {
+		return 0, false
+	}
+	return q.i.AsInt64()
+}
+
+// ToDec promotes the quantity in place to use an inf.Dec representation and returns itself.
+func (q *Quantity) ToDec() *Quantity {
+	if q.d.Dec == nil {
+		q.d.Dec = q.i.AsDec()
+		q.i = int64Amount{}
+	}
+	return q
+}
+
+// AsDec returns the quantity as represented by a scaled inf.Dec.
+func (q *Quantity) AsDec() *inf.Dec {
+	if q.d.Dec != nil {
+		return q.d.Dec
+	}
+	q.d.Dec = q.i.AsDec()
+	q.i = int64Amount{}
+	return q.d.Dec
+}
+
+// AsCanonicalBytes returns the canonical byte representation of this quantity as a mantissa
+// and base 10 exponent. The out byte slice may be passed to the method to avoid an extra
+// allocation.
+func (q *Quantity) AsCanonicalBytes(out []byte) (result []byte, exponent int32) {
+	if q.d.Dec != nil {
+		return q.d.AsCanonicalBytes(out)
+	}
+	return q.i.AsCanonicalBytes(out)
+}
+
+// IsZero returns true if the quantity is equal to zero.
+func (q *Quantity) IsZero() bool {
+	if q.d.Dec != nil {
+		return q.d.Dec.Sign() == 0
+	}
+	return q.i.value == 0
+}
+
+// Sign returns 0 if the quantity is zero, -1 if the quantity is less than zero, or 1 if the
+// quantity is greater than zero.
+func (q *Quantity) Sign() int {
+	if q.d.Dec != nil {
+		return q.d.Dec.Sign()
+	}
+	return q.i.Sign()
+}
+
+// AsScale returns the current value, rounded up to the provided scale, and returns
+// false if the scale resulted in a loss of precision.
+func (q *Quantity) AsScale(scale Scale) (CanonicalValue, bool) {
+	if q.d.Dec != nil {
+		return q.d.AsScale(scale)
+	}
+	return q.i.AsScale(scale)
+}
+
+// RoundUp updates the quantity to the provided scale, ensuring that the value is at
+// least 1. False is returned if the rounding operation resulted in a loss of precision.
+// Negative numbers are rounded away from zero (-9 scale 1 rounds to -10).
+func (q *Quantity) RoundUp(scale Scale) bool {
+	if q.d.Dec != nil {
+		q.s = ""
+		d, exact := q.d.AsScale(scale)
+		q.d = d
+		return exact
+	}
+	// avoid clearing the string value if we have already calculated it
+	if q.i.scale >= scale {
+		return true
+	}
+	q.s = ""
+	i, exact := q.i.AsScale(scale)
+	q.i = i
+	return exact
+}
+
+// Add adds the provide y quantity to the current value. If the current value is zero,
+// the format of the quantity will be updated to the format of y.
+func (q *Quantity) Add(y Quantity) {
+	q.s = ""
+	if q.d.Dec == nil && y.d.Dec == nil {
+		if q.i.value == 0 {
+			q.Format = y.Format
+		}
+		if q.i.Add(y.i) {
+			return
+		}
+	} else if q.IsZero() {
+		q.Format = y.Format
+	}
+	q.ToDec().d.Dec.Add(q.d.Dec, y.AsDec())
+}
+
+// Sub subtracts the provided quantity from the current value in place. If the current
+// value is zero, the format of the quantity will be updated to the format of y.
+func (q *Quantity) Sub(y Quantity) {
+	q.s = ""
+	if q.IsZero() {
+		q.Format = y.Format
+	}
+	if q.d.Dec == nil && y.d.Dec == nil && q.i.Sub(y.i) {
+		return
+	}
+	q.ToDec().d.Dec.Sub(q.d.Dec, y.AsDec())
+}
+
+// Mul multiplies the provided y to the current value.
+// It will return false if the result is inexact. Otherwise, it will return true.
+func (q *Quantity) Mul(y int64) bool {
+	q.s = ""
+	if q.d.Dec == nil && q.i.Mul(y) {
+		return true
+	}
+	return q.ToDec().d.Dec.Mul(q.d.Dec, inf.NewDec(y, inf.Scale(0))).UnscaledBig().IsInt64()
+}
+
+// Cmp returns 0 if the quantity is equal to y, -1 if the quantity is less than y, or 1 if the
+// quantity is greater than y.
+func (q *Quantity) Cmp(y Quantity) int {
+	if q.d.Dec == nil && y.d.Dec == nil {
+		return q.i.Cmp(y.i)
+	}
+	return q.AsDec().Cmp(y.AsDec())
+}
+
+// CmpInt64 returns 0 if the quantity is equal to y, -1 if the quantity is less than y, or 1 if the
+// quantity is greater than y.
+func (q *Quantity) CmpInt64(y int64) int {
+	if q.d.Dec != nil {
+		return q.d.Dec.Cmp(inf.NewDec(y, inf.Scale(0)))
+	}
+	return q.i.Cmp(int64Amount{value: y})
+}
+
+// Neg sets quantity to be the negative value of itself.
+func (q *Quantity) Neg() {
+	q.s = ""
+	if q.d.Dec == nil {
+		q.i.value = -q.i.value
+		return
+	}
+	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
+
+// String formats the Quantity as a string, caching the result if not calculated.
+// String is an expensive operation and caching this result significantly reduces the cost of
+// normal parse / marshal operations on Quantity.
+func (q *Quantity) String() string {
+	if q == nil {
+		return "<nil>"
+	}
+	if len(q.s) == 0 {
+		result := make([]byte, 0, int64QuantityExpectedBytes)
+		number, suffix := q.CanonicalizeBytes(result)
+		number = append(number, suffix...)
+		q.s = string(number)
+	}
+	return q.s
+}
+
+// MarshalJSON implements the json.Marshaller interface.
+func (q Quantity) MarshalJSON() ([]byte, error) {
+	if len(q.s) > 0 {
+		out := make([]byte, len(q.s)+2)
+		out[0], out[len(out)-1] = '"', '"'
+		copy(out[1:], q.s)
+		return out, nil
+	}
+	result := make([]byte, int64QuantityExpectedBytes)
+	result[0] = '"'
+	number, suffix := q.CanonicalizeBytes(result[1:1])
+	// if the same slice was returned to us that we passed in, avoid another allocation by copying number into
+	// the source slice and returning that
+	if len(number) > 0 && &number[0] == &result[1] && (len(number)+len(suffix)+2) <= int64QuantityExpectedBytes {
+		number = append(number, suffix...)
+		number = append(number, '"')
+		return result[:1+len(number)], nil
+	}
+	// if CanonicalizeBytes needed more space than our slice provided, we may need to allocate again so use
+	// append
+	result = result[:1]
+	result = append(result, number...)
+	result = append(result, suffix...)
+	result = append(result, '"')
+	return result, nil
+}
+
+func (q Quantity) MarshalCBOR() ([]byte, error) {
+	// The call to String() should never return the string "<nil>" because the receiver's
+	// address will never be nil.
+	return cbor.Marshal(q.String())
+}
+
+// ToUnstructured implements the value.UnstructuredConverter interface.
+func (q Quantity) ToUnstructured() interface{} {
+	return q.String()
+}
+
+// UnmarshalJSON implements the json.Unmarshaller interface.
+// TODO: Remove support for leading/trailing whitespace
+func (q *Quantity) UnmarshalJSON(value []byte) error {
+	l := len(value)
+	if l == 4 && bytes.Equal(value, []byte("null")) {
+		q.d.Dec = nil
+		q.i = int64Amount{}
+		return nil
+	}
+	if l >= 2 && value[0] == '"' && value[l-1] == '"' {
+		value = value[1 : l-1]
+	}
+
+	parsed, err := ParseQuantity(strings.TrimSpace(string(value)))
+	if err != nil {
+		return err
+	}
+
+	// This copy is safe because parsed will not be referred to again.
+	*q = parsed
+	return nil
+}
+
+func (q *Quantity) UnmarshalCBOR(value []byte) error {
+	var s *string
+	if err := cbor.Unmarshal(value, &s); err != nil {
+		return err
+	}
+
+	if s == nil {
+		q.d.Dec = nil
+		q.i = int64Amount{}
+		return nil
+	}
+
+	parsed, err := ParseQuantity(strings.TrimSpace(*s))
+	if err != nil {
+		return err
+	}
+
+	*q = parsed
+	return nil
+}
+
+// NewDecimalQuantity returns a new Quantity representing the given
+// value in the given format.
+func NewDecimalQuantity(b inf.Dec, format Format) *Quantity {
+	return &Quantity{
+		d:      infDecAmount{&b},
+		Format: format,
+	}
+}
+
+// NewQuantity returns a new Quantity representing the given
+// value in the given format.
+func NewQuantity(value int64, format Format) *Quantity {
+	return &Quantity{
+		i:      int64Amount{value: value},
+		Format: format,
+	}
+}
+
+// NewMilliQuantity returns a new Quantity representing the given
+// value * 1/1000 in the given format. Note that BinarySI formatting
+// will round fractional values, and will be changed to DecimalSI for
+// values x where (-1 < x < 1) && (x != 0).
+func NewMilliQuantity(value int64, format Format) *Quantity {
+	return &Quantity{
+		i:      int64Amount{value: value, scale: -3},
+		Format: format,
+	}
+}
+
+// NewScaledQuantity returns a new Quantity representing the given
+// value * 10^scale in DecimalSI format.
+func NewScaledQuantity(value int64, scale Scale) *Quantity {
+	return &Quantity{
+		i:      int64Amount{value: value, scale: scale},
+		Format: DecimalSI,
+	}
+}
+
+// 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)
+}
+
+// MilliValue returns the value of ceil(q * 1000); this could overflow an int64;
+// if that's a concern, call Value() first to verify the number is small enough.
+func (q *Quantity) MilliValue() int64 {
+	return q.ScaledValue(Milli)
+}
+
+// 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 {
+		i, _ := q.i.AsScaledInt64(scale)
+		return i
+	}
+	dec := q.d.Dec
+	return scaledValue(dec.UnscaledBig(), int(dec.Scale()), int(scale.infScale()))
+}
+
+// Set sets q's value to be value.
+func (q *Quantity) Set(value int64) {
+	q.SetScaled(value, 0)
+}
+
+// SetMilli sets q's value to be value * 1/1000.
+func (q *Quantity) SetMilli(value int64) {
+	q.SetScaled(value, Milli)
+}
+
+// SetScaled sets q's value to be value * 10^scale
+func (q *Quantity) SetScaled(value int64, scale Scale) {
+	q.s = ""
+	q.d.Dec = nil
+	q.i = int64Amount{value: value, scale: scale}
+}
+
+// QuantityValue makes it possible to use a Quantity as value for a command
+// line parameter.
+//
+// +protobuf=true
+// +protobuf.embed=string
+// +protobuf.options.marshal=false
+// +protobuf.options.(gogoproto.goproto_stringer)=false
+// +k8s:deepcopy-gen=true
+// +k8s:openapi-model-package=io.k8s.apimachinery.pkg.api.resource
+type QuantityValue struct {
+	Quantity
+}
+
+// Set implements pflag.Value.Set and Go flag.Value.Set.
+func (q *QuantityValue) Set(s string) error {
+	quantity, err := ParseQuantity(s)
+	if err != nil {
+		return err
+	}
+	q.Quantity = quantity
+	return nil
+}
+
+// Type implements pflag.Value.Type.
+func (q QuantityValue) Type() string {
+	return "quantity"
+}

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

@@ -0,0 +1,284 @@
+/*
+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 resource
+
+import (
+	"fmt"
+	"io"
+	"math/bits"
+)
+
+func (m *Quantity) Marshal() (data []byte, err error) {
+	size := m.Size()
+	data = make([]byte, size)
+	n, err := m.MarshalToSizedBuffer(data[:size])
+	if err != nil {
+		return nil, err
+	}
+	return data[:n], nil
+}
+
+// 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) {
+	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
+
+	// BEGIN CUSTOM MARSHAL
+	out := m.String()
+	i -= len(out)
+	copy(data[i:], out)
+	i = encodeVarintGenerated(data, i, uint64(len(out)))
+	// END CUSTOM MARSHAL
+	i--
+	data[i] = 0xa
+
+	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 base
+}
+
+func (m *Quantity) Size() (n int) {
+	var l int
+	_ = l
+
+	// BEGIN CUSTOM SIZE
+	l = len(m.String())
+	// END CUSTOM SIZE
+
+	n += 1 + l + sovGenerated(uint64(l))
+	return n
+}
+
+func sovGenerated(x uint64) (n int) {
+	return (bits.Len64(x|1) + 6) / 7
+}
+
+// Unmarshal is a customized version of the generated Protobuf unmarshaler for a struct
+// with a single string field.
+func (m *Quantity) Unmarshal(data []byte) error {
+	l := len(data)
+	iNdEx := 0
+	for iNdEx < l {
+		preIndex := iNdEx
+		var wire uint64
+		for shift := uint(0); ; shift += 7 {
+			if shift >= 64 {
+				return ErrIntOverflowGenerated
+			}
+			if iNdEx >= l {
+				return io.ErrUnexpectedEOF
+			}
+			b := data[iNdEx]
+			iNdEx++
+			wire |= (uint64(b) & 0x7F) << shift
+			if b < 0x80 {
+				break
+			}
+		}
+		fieldNum := int32(wire >> 3)
+		wireType := int(wire & 0x7)
+		if wireType == 4 {
+			return fmt.Errorf("proto: Quantity: wiretype end group for non-group")
+		}
+		if fieldNum <= 0 {
+			return fmt.Errorf("proto: Quantity: illegal tag %d (wire type %d)", fieldNum, wire)
+		}
+		switch fieldNum {
+		case 1:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field String_", wireType)
+			}
+			var stringLen uint64
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowGenerated
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := data[iNdEx]
+				iNdEx++
+				stringLen |= (uint64(b) & 0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			intStringLen := int(stringLen)
+			if intStringLen < 0 {
+				return ErrInvalidLengthGenerated
+			}
+			postIndex := iNdEx + intStringLen
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			s := string(data[iNdEx:postIndex])
+
+			// BEGIN CUSTOM DECODE
+			p, err := ParseQuantity(s)
+			if err != nil {
+				return err
+			}
+			*m = p
+			// END CUSTOM DECODE
+
+			iNdEx = postIndex
+		default:
+			iNdEx = preIndex
+			skippy, err := skipGenerated(data[iNdEx:])
+			if err != nil {
+				return err
+			}
+			if (skippy < 0) || (iNdEx+skippy) < 0 {
+				return ErrInvalidLengthGenerated
+			}
+			if (iNdEx + skippy) > l {
+				return io.ErrUnexpectedEOF
+			}
+			iNdEx += skippy
+		}
+	}
+
+	if iNdEx > l {
+		return io.ErrUnexpectedEOF
+	}
+	return nil
+}
+
+func skipGenerated(data []byte) (n int, err error) {
+	l := len(data)
+	iNdEx := 0
+	for iNdEx < l {
+		var wire uint64
+		for shift := uint(0); ; shift += 7 {
+			if shift >= 64 {
+				return 0, ErrIntOverflowGenerated
+			}
+			if iNdEx >= l {
+				return 0, io.ErrUnexpectedEOF
+			}
+			b := data[iNdEx]
+			iNdEx++
+			wire |= (uint64(b) & 0x7F) << shift
+			if b < 0x80 {
+				break
+			}
+		}
+		wireType := int(wire & 0x7)
+		switch wireType {
+		case 0:
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return 0, ErrIntOverflowGenerated
+				}
+				if iNdEx >= l {
+					return 0, io.ErrUnexpectedEOF
+				}
+				iNdEx++
+				if data[iNdEx-1] < 0x80 {
+					break
+				}
+			}
+			return iNdEx, nil
+		case 1:
+			iNdEx += 8
+			return iNdEx, nil
+		case 2:
+			var length int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return 0, ErrIntOverflowGenerated
+				}
+				if iNdEx >= l {
+					return 0, io.ErrUnexpectedEOF
+				}
+				b := data[iNdEx]
+				iNdEx++
+				length |= (int(b) & 0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			iNdEx += length
+			if length < 0 {
+				return 0, ErrInvalidLengthGenerated
+			}
+			return iNdEx, nil
+		case 3:
+			for {
+				var innerWire uint64
+				var start int = iNdEx
+				for shift := uint(0); ; shift += 7 {
+					if shift >= 64 {
+						return 0, ErrIntOverflowGenerated
+					}
+					if iNdEx >= l {
+						return 0, io.ErrUnexpectedEOF
+					}
+					b := data[iNdEx]
+					iNdEx++
+					innerWire |= (uint64(b) & 0x7F) << shift
+					if b < 0x80 {
+						break
+					}
+				}
+				innerWireType := int(innerWire & 0x7)
+				if innerWireType == 4 {
+					break
+				}
+				next, err := skipGenerated(data[start:])
+				if err != nil {
+					return 0, err
+				}
+				iNdEx = start + next
+			}
+			return iNdEx, nil
+		case 4:
+			return iNdEx, nil
+		case 5:
+			iNdEx += 4
+			return iNdEx, nil
+		default:
+			return 0, fmt.Errorf("proto: illegal wireType %d", wireType)
+		}
+	}
+	panic("unreachable")
+}
+
+var (
+	ErrInvalidLengthGenerated = fmt.Errorf("proto: negative length found during unmarshaling")
+	ErrIntOverflowGenerated   = fmt.Errorf("proto: integer overflow")
+)

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

@@ -0,0 +1,95 @@
+/*
+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 resource
+
+import (
+	"math"
+	"math/big"
+	"sync"
+)
+
+var (
+	// A sync pool to reduce allocation.
+	intPool  sync.Pool
+	maxInt64 = big.NewInt(math.MaxInt64)
+)
+
+func init() {
+	intPool.New = func() interface{} {
+		return &big.Int{}
+	}
+}
+
+// scaledValue scales given unscaled value from scale to new Scale and returns
+// an int64. It ALWAYS rounds up the result when scale down. The final result might
+// overflow.
+//
+// scale, newScale represents the scale of the unscaled decimal.
+// The mathematical value of the decimal is unscaled * 10**(-scale).
+func scaledValue(unscaled *big.Int, scale, newScale int) int64 {
+	dif := scale - newScale
+	if dif == 0 {
+		return unscaled.Int64()
+	}
+
+	// Handle scale up
+	// This is an easy case, we do not need to care about rounding and overflow.
+	// If any intermediate operation causes overflow, the result will overflow.
+	if dif < 0 {
+		return unscaled.Int64() * int64(math.Pow10(-dif))
+	}
+
+	// Handle scale down
+	// We have to be careful about the intermediate operations.
+
+	// fast path when unscaled < max.Int64 and exp(10,dif) < max.Int64
+	const log10MaxInt64 = 19
+	if unscaled.Cmp(maxInt64) < 0 && dif < log10MaxInt64 {
+		divide := int64(math.Pow10(dif))
+		result := unscaled.Int64() / divide
+		mod := unscaled.Int64() % divide
+		if mod != 0 {
+			return result + 1
+		}
+		return result
+	}
+
+	// We should only convert back to int64 when getting the result.
+	divisor := intPool.Get().(*big.Int)
+	exp := intPool.Get().(*big.Int)
+	result := intPool.Get().(*big.Int)
+	defer func() {
+		intPool.Put(divisor)
+		intPool.Put(exp)
+		intPool.Put(result)
+	}()
+
+	// divisor = 10^(dif)
+	// TODO: create loop up table if exp costs too much.
+	divisor.Exp(bigTen, exp.SetInt64(int64(dif)), nil)
+	// reuse exp
+	remainder := exp
+
+	// result = unscaled / divisor
+	// remainder = unscaled % divisor
+	result.DivMod(unscaled, divisor, remainder)
+	if remainder.Sign() != 0 {
+		return result.Int64() + 1
+	}
+
+	return result.Int64()
+}

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

@@ -0,0 +1,198 @@
+/*
+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 resource
+
+import (
+	"strconv"
+)
+
+type suffix string
+
+// suffixer can interpret and construct suffixes.
+type suffixer interface {
+	interpret(suffix) (base, exponent int32, fmt Format, ok bool)
+	construct(base, exponent int32, fmt Format) (s suffix, ok bool)
+	constructBytes(base, exponent int32, fmt Format) (s []byte, ok bool)
+}
+
+// quantitySuffixer handles suffixes for all three formats that quantity
+// can handle.
+var quantitySuffixer = newSuffixer()
+
+type bePair struct {
+	base, exponent int32
+}
+
+type listSuffixer struct {
+	suffixToBE      map[suffix]bePair
+	beToSuffix      map[bePair]suffix
+	beToSuffixBytes map[bePair][]byte
+}
+
+func (ls *listSuffixer) addSuffix(s suffix, pair bePair) {
+	if ls.suffixToBE == nil {
+		ls.suffixToBE = map[suffix]bePair{}
+	}
+	if ls.beToSuffix == nil {
+		ls.beToSuffix = map[bePair]suffix{}
+	}
+	if ls.beToSuffixBytes == nil {
+		ls.beToSuffixBytes = map[bePair][]byte{}
+	}
+	ls.suffixToBE[s] = pair
+	ls.beToSuffix[pair] = s
+	ls.beToSuffixBytes[pair] = []byte(s)
+}
+
+func (ls *listSuffixer) lookup(s suffix) (base, exponent int32, ok bool) {
+	pair, ok := ls.suffixToBE[s]
+	if !ok {
+		return 0, 0, false
+	}
+	return pair.base, pair.exponent, true
+}
+
+func (ls *listSuffixer) construct(base, exponent int32) (s suffix, ok bool) {
+	s, ok = ls.beToSuffix[bePair{base, exponent}]
+	return
+}
+
+func (ls *listSuffixer) constructBytes(base, exponent int32) (s []byte, ok bool) {
+	s, ok = ls.beToSuffixBytes[bePair{base, exponent}]
+	return
+}
+
+type suffixHandler struct {
+	decSuffixes listSuffixer
+	binSuffixes listSuffixer
+}
+
+type fastLookup struct {
+	*suffixHandler
+}
+
+func (l fastLookup) interpret(s suffix) (base, exponent int32, format Format, ok bool) {
+	switch s {
+	case "":
+		return 10, 0, DecimalSI, true
+	case "n":
+		return 10, -9, DecimalSI, true
+	case "u":
+		return 10, -6, DecimalSI, true
+	case "m":
+		return 10, -3, DecimalSI, true
+	case "k":
+		return 10, 3, DecimalSI, true
+	case "M":
+		return 10, 6, DecimalSI, true
+	case "G":
+		return 10, 9, DecimalSI, true
+	}
+	return l.suffixHandler.interpret(s)
+}
+
+func newSuffixer() suffixer {
+	sh := &suffixHandler{}
+
+	// IMPORTANT: if you change this section you must change fastLookup
+
+	sh.binSuffixes.addSuffix("Ki", bePair{2, 10})
+	sh.binSuffixes.addSuffix("Mi", bePair{2, 20})
+	sh.binSuffixes.addSuffix("Gi", bePair{2, 30})
+	sh.binSuffixes.addSuffix("Ti", bePair{2, 40})
+	sh.binSuffixes.addSuffix("Pi", bePair{2, 50})
+	sh.binSuffixes.addSuffix("Ei", bePair{2, 60})
+	// Don't emit an error when trying to produce
+	// a suffix for 2^0.
+	sh.decSuffixes.addSuffix("", bePair{2, 0})
+
+	sh.decSuffixes.addSuffix("n", bePair{10, -9})
+	sh.decSuffixes.addSuffix("u", bePair{10, -6})
+	sh.decSuffixes.addSuffix("m", bePair{10, -3})
+	sh.decSuffixes.addSuffix("", bePair{10, 0})
+	sh.decSuffixes.addSuffix("k", bePair{10, 3})
+	sh.decSuffixes.addSuffix("M", bePair{10, 6})
+	sh.decSuffixes.addSuffix("G", bePair{10, 9})
+	sh.decSuffixes.addSuffix("T", bePair{10, 12})
+	sh.decSuffixes.addSuffix("P", bePair{10, 15})
+	sh.decSuffixes.addSuffix("E", bePair{10, 18})
+
+	return fastLookup{sh}
+}
+
+func (sh *suffixHandler) construct(base, exponent int32, fmt Format) (s suffix, ok bool) {
+	switch fmt {
+	case DecimalSI:
+		return sh.decSuffixes.construct(base, exponent)
+	case BinarySI:
+		return sh.binSuffixes.construct(base, exponent)
+	case DecimalExponent:
+		if base != 10 {
+			return "", false
+		}
+		if exponent == 0 {
+			return "", true
+		}
+		return suffix("e" + strconv.FormatInt(int64(exponent), 10)), true
+	}
+	return "", false
+}
+
+func (sh *suffixHandler) constructBytes(base, exponent int32, format Format) (s []byte, ok bool) {
+	switch format {
+	case DecimalSI:
+		return sh.decSuffixes.constructBytes(base, exponent)
+	case BinarySI:
+		return sh.binSuffixes.constructBytes(base, exponent)
+	case DecimalExponent:
+		if base != 10 {
+			return nil, false
+		}
+		if exponent == 0 {
+			return nil, true
+		}
+		result := make([]byte, 8)
+		result[0] = 'e'
+		number := strconv.AppendInt(result[1:1], int64(exponent), 10)
+		if &result[1] == &number[0] {
+			return result[:1+len(number)], true
+		}
+		result = append(result[:1], number...)
+		return result, true
+	}
+	return nil, false
+}
+
+func (sh *suffixHandler) interpret(suffix suffix) (base, exponent int32, fmt Format, ok bool) {
+	// Try lookup tables first
+	if b, e, ok := sh.decSuffixes.lookup(suffix); ok {
+		return b, e, DecimalSI, true
+	}
+	if b, e, ok := sh.binSuffixes.lookup(suffix); ok {
+		return b, e, BinarySI, true
+	}
+
+	if len(suffix) > 1 && (suffix[0] == 'E' || suffix[0] == 'e') {
+		parsed, err := strconv.ParseInt(string(suffix[1:]), 10, 64)
+		if err != nil {
+			return 0, 0, DecimalExponent, false
+		}
+		return 10, int32(parsed), DecimalExponent, true
+	}
+
+	return 0, 0, DecimalExponent, false
+}

vendor/k8s.io/apimachinery/pkg/api/resource/zz_generated.deepcopy.go

@@ -0,0 +1,45 @@
+//go:build !ignore_autogenerated
+// +build !ignore_autogenerated
+
+/*
+Copyright 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.
+*/
+
+// Code generated by deepcopy-gen. DO NOT EDIT.
+
+package resource
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *Quantity) DeepCopyInto(out *Quantity) {
+	*out = in.DeepCopy()
+	return
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *QuantityValue) DeepCopyInto(out *QuantityValue) {
+	*out = *in
+	out.Quantity = in.Quantity.DeepCopy()
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new QuantityValue.
+func (in *QuantityValue) DeepCopy() *QuantityValue {
+	if in == nil {
+		return nil
+	}
+	out := new(QuantityValue)
+	in.DeepCopyInto(out)
+	return out
+}

vendor/k8s.io/apimachinery/pkg/api/resource/zz_generated.model_name.go

@@ -0,0 +1,32 @@
+//go:build !ignore_autogenerated
+// +build !ignore_autogenerated
+
+/*
+Copyright 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.
+*/
+
+// Code generated by openapi-gen. DO NOT EDIT.
+
+package resource
+
+// OpenAPIModelName returns the OpenAPI model name for this type.
+func (in Quantity) OpenAPIModelName() string {
+	return "io.k8s.apimachinery.pkg.api.resource.Quantity"
+}
+
+// OpenAPIModelName returns the OpenAPI model name for this type.
+func (in QuantityValue) OpenAPIModelName() string {
+	return "io.k8s.apimachinery.pkg.api.resource.QuantityValue"
+}

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

@@ -0,0 +1,59 @@
+/*
+Copyright 2024 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 safe
+
+// Field takes a pointer to any value (which may or may not be nil) and a
+// function that traverses to a target type R (a typical use case is to
+// dereference a field), and returns the result of the traversal, or the zero
+// value of the target type.
+//
+// This is roughly equivalent to:
+//
+//	value != nil ? fn(value) : zero-value
+//
+// ...in languages that support the ternary operator.
+func Field[V any, R any](value *V, fn func(*V) R) R {
+	if value == nil {
+		var zero R
+		return zero
+	}
+	o := fn(value)
+	return o
+}
+
+// Cast takes any value, attempts to cast it to T, and returns the T value if
+// the cast is successful, or else the zero value of T.
+func Cast[T any](value any) T {
+	result, _ := value.(T)
+	return result
+}
+
+// Value takes a pointer to any value (which may or may not be nil) and a
+// function that returns a pointer to the same type.  If the value is not nil,
+// it is returned, otherwise the result of the function is returned.
+//
+// This is roughly equivalent to:
+//
+//	value != nil ? value : fn()
+//
+// ...in languages that support the ternary operator.
+func Value[T any](value *T, fn func() *T) *T {
+	if value != nil {
+		return value
+	}
+	return fn()
+}

vendor/k8s.io/apimachinery/pkg/api/validate/README.md

@@ -0,0 +1,64 @@
+# API validation
+
+This package holds functions which validate fields and types in the Kubernetes
+API. It may be useful beyond API validation, but this is the primary goal.
+
+Most of the public functions here have signatures which adhere to the following
+pattern, which is assumed by automation and code-generation:
+
+```
+import (
+        "context"
+        "k8s.io/apimachinery/pkg/api/operation"
+        "k8s.io/apimachinery/pkg/util/validation/field"
+)
+
+func <Name>(ctx context.Context, op operation.Operation, fldPath *field.Path, value, oldValue <ValueType>, <OtherArgs...>) field.ErrorList
+```
+
+The name of validator functions should consider that callers will generally be
+spelling out the package name and the function name, and so should aim for
+legibility.  E.g. `validate.Concept()`.
+
+The `ctx` argument is Go's usual Context.
+
+The `opCtx` argument provides information about the API operation in question.
+
+The `fldPath` argument indicates the path to the field in question, to be used
+in errors.
+
+The `value` and `oldValue` arguments are the thing(s) being validated.  For
+CREATE operations (`opCtx.Operation == operation.Create`), the `oldValue`
+argument will be nil.  Many validators functions only look at the current value
+(`value`) and disregard `oldValue`.
+
+The `value` and `oldValue` arguments are always nilable - pointers to primitive
+types, slices of any type, or maps of any type.  Validator functions should
+avoid dereferencing nil. Callers are expected to not pass a nil `value` unless the
+API field itself was nilable. `oldValue` is always nil for CREATE operations and 
+is also nil for UPDATE operations if the `value` is not correlated with an `oldValue`.
+
+Simple content-validators may have no `<OtherArgs>`, but validator functions
+may take additional arguments.  Some validator functions will be built as
+generics, e.g. to allow any integer type or to handle arbitrary slices.
+
+Examples:
+
+```
+// NonEmpty validates that a string is not empty.
+func NonEmpty(ctx context.Context, op operation.Operation, fldPath *field.Path, value, _ *string) field.ErrorList
+
+// Even validates that a slice has an even number of items.
+func Even[T any](ctx context.Context, op operation.Operation, fldPath *field.Path, value, _ []T) field.ErrorList
+
+// KeysMaxLen validates that all of the string keys in a map are under the
+// specified length.
+func KeysMaxLen[T any](ctx context.Context, op operation.Operation, fldPath *field.Path, value, _ map[string]T, maxLen int) field.ErrorList
+```
+
+Validator functions always return an `ErrorList` where each item is a distinct
+validation failure and a zero-length return value (not just nil) indicates
+success.
+
+Good validation failure messages follow the Kubernetes API conventions, for
+example using "must" instead of "should".

vendor/k8s.io/apimachinery/pkg/api/validate/common.go

@@ -0,0 +1,28 @@
+/*
+Copyright 2024 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 validate
+
+import (
+	"context"
+
+	"k8s.io/apimachinery/pkg/api/operation"
+	"k8s.io/apimachinery/pkg/util/validation/field"
+)
+
+// ValidateFunc is a function that validates a value, possibly considering the
+// old value (if any).
+type ValidateFunc[T any] func(ctx context.Context, op operation.Operation, fldPath *field.Path, newValue, oldValue T) field.ErrorList

vendor/k8s.io/apimachinery/pkg/api/validate/constraints/constraints.go

@@ -0,0 +1,32 @@
+/*
+Copyright 2025 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 constraints
+
+// Signed is a constraint that permits any signed integer type.
+type Signed interface {
+	~int | ~int8 | ~int16 | ~int32 | ~int64
+}
+
+// Unsigned is a constraint that permits any unsigned integer type.
+type Unsigned interface {
+	~uint | ~uint8 | ~uint16 | ~uint32 | ~uint64 | ~uintptr
+}
+
+// Integer is a constraint that permits any integer type.
+type Integer interface {
+	Signed | Unsigned
+}

vendor/k8s.io/apimachinery/pkg/api/validate/content/decimal_int.go

@@ -0,0 +1,62 @@
+/*
+Copyright 2025 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 content
+
+const decimalIntegerErrMsg string = "must be a valid decimal integer in canonical form"
+
+// IsDecimalInteger validates that a string represents a decimal integer in strict canonical form.
+// This means the string must be formatted exactly as a human would naturally write an integer,
+// without any programming language conventions like leading zeros, plus signs, or alternate bases.
+//
+// valid values:"0" or Non-zero integers (i.e., "123", "-456") where the first digit is 1-9,
+// followed by any digits 0-9.
+//
+// This validator is stricter than strconv.ParseInt, which accepts leading zeros values (i.e, "0700")
+// and interprets them as decimal 700, potentially causing confusion with octal notation.
+func IsDecimalInteger(value string) []string {
+	n := len(value)
+	if n == 0 {
+		return []string{EmptyError()}
+	}
+
+	i := 0
+	if value[0] == '-' {
+		if n == 1 {
+			return []string{decimalIntegerErrMsg}
+		}
+		i = 1
+	}
+
+	if value[i] == '0' {
+		if n == 1 && i == 0 {
+			return nil
+		}
+		return []string{decimalIntegerErrMsg}
+	}
+
+	if value[i] < '1' || value[i] > '9' {
+		return []string{decimalIntegerErrMsg}
+	}
+
+	for i++; i < n; i++ {
+		if value[i] < '0' || value[i] > '9' {
+			return []string{decimalIntegerErrMsg}
+		}
+	}
+
+	return nil
+}

vendor/k8s.io/apimachinery/pkg/api/validate/content/dns.go

@@ -0,0 +1,101 @@
+/*
+Copyright 2025 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 content
+
+import (
+	"regexp"
+)
+
+const dns1123LabelFmt string = "[a-z0-9]([-a-z0-9]*[a-z0-9])?"
+
+const dns1123LabelErrMsg string = "a lowercase RFC 1123 label must consist of lower case alphanumeric characters or '-', and must start and end with an alphanumeric character"
+
+// DNS1123LabelMaxLength is a label's max length in DNS (RFC 1123)
+const DNS1123LabelMaxLength int = 63
+
+var dns1123LabelRegexp = regexp.MustCompile("^" + dns1123LabelFmt + "$")
+
+// IsDNS1123Label tests for a string that conforms to the definition of a label in
+// DNS (RFC 1123).
+func IsDNS1123Label(value string) []string {
+	var errs []string
+	if len(value) > DNS1123LabelMaxLength {
+		errs = append(errs, MaxLenError(DNS1123LabelMaxLength))
+	}
+	if !dns1123LabelRegexp.MatchString(value) {
+		if dns1123SubdomainRegexp.MatchString(value) {
+			// It was a valid subdomain and not a valid label.  Since we
+			// already checked length, it must be dots.
+			errs = append(errs, "must not contain dots")
+		} else {
+			errs = append(errs, RegexError(dns1123LabelErrMsg, dns1123LabelFmt, "my-name", "123-abc"))
+		}
+	}
+	return errs
+}
+
+const dns1123SubdomainFmt string = dns1123LabelFmt + "(\\." + dns1123LabelFmt + ")*"
+const dns1123SubdomainFmtCaseless string = "(?i)" + dns1123SubdomainFmt
+const dns1123SubdomainErrorMsg string = "a lowercase RFC 1123 subdomain must consist of lower case alphanumeric characters, '-' or '.', and must start and end with an alphanumeric character"
+const dns1123SubdomainCaselessErrorMsg string = "an RFC 1123 subdomain must consist of alphanumeric characters, '-' or '.', and must start and end with an alphanumeric character"
+
+// DNS1123SubdomainMaxLength is a subdomain's max length in DNS (RFC 1123)
+const DNS1123SubdomainMaxLength int = 253
+
+var dns1123SubdomainRegexp = regexp.MustCompile("^" + dns1123SubdomainFmt + "$")
+var dns1123SubdomainCaselessRegexp = regexp.MustCompile("^" + dns1123SubdomainFmtCaseless + "$")
+
+// IsDNS1123Subdomain tests for a string that conforms to the definition of a
+// subdomain in DNS (RFC 1123) lowercase.
+func IsDNS1123Subdomain(value string) []string {
+	return isDNS1123Subdomain(value, false)
+}
+
+// IsDNS1123SubdomainCaseless tests for a string that conforms to the definition of a
+// subdomain in DNS (RFC 1123).
+//
+// Deprecated: API validation should never be caseless. Caseless validation is a vector
+// for bugs and failed uniqueness assumptions. For example, names like "foo.com" and
+// "FOO.COM" are both accepted as valid, but they are typically not treated as equal by
+// consumers (e.g. CSI and DRA driver names). This fails the "least surprise" principle and
+// can cause inconsistent behaviors.
+//
+// Note: This allows uppercase names but is not caseless — uppercase and lowercase are
+// treated as different values. Use IsDNS1123Subdomain for strict, lowercase validation
+// instead.
+func IsDNS1123SubdomainCaseless(value string) []string {
+	return isDNS1123Subdomain(value, true)
+}
+
+func isDNS1123Subdomain(value string, caseless bool) []string {
+	var errs []string
+	if len(value) > DNS1123SubdomainMaxLength {
+		errs = append(errs, MaxLenError(DNS1123SubdomainMaxLength))
+	}
+	errorMsg := dns1123SubdomainErrorMsg
+	example := "example.com"
+	regexp := dns1123SubdomainRegexp
+	if caseless {
+		errorMsg = dns1123SubdomainCaselessErrorMsg
+		example = "Example.com"
+		regexp = dns1123SubdomainCaselessRegexp
+	}
+	if !regexp.MatchString(value) {
+		errs = append(errs, RegexError(errorMsg, dns1123SubdomainFmt, example))
+	}
+	return errs
+}

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

@@ -0,0 +1,66 @@
+/*
+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 content
+
+import (
+	"fmt"
+	"reflect"
+
+	"k8s.io/apimachinery/pkg/api/validate/constraints"
+)
+
+// MinError returns a string explanation of a "must be greater than or equal"
+// validation failure.
+func MinError[T constraints.Integer](min T) string {
+	return fmt.Sprintf("must be greater than or equal to %d", min)
+}
+
+// MaxLenError returns a string explanation of a "string too long" validation
+// failure.
+func MaxLenError(length int) string {
+	return fmt.Sprintf("must be no more than %d bytes", length)
+}
+
+// EmptyError returns a string explanation of an "empty string" validation.
+func EmptyError() string {
+	return "must be non-empty"
+}
+
+// RegexError returns a string explanation of a regex validation failure.
+func RegexError(msg string, re string, examples ...string) string {
+	if len(examples) == 0 {
+		return msg + " (regex used for validation is '" + re + "')"
+	}
+	msg += " (e.g. "
+	for i := range examples {
+		if i > 0 {
+			msg += " or "
+		}
+		msg += "'" + examples[i] + "', "
+	}
+	msg += "regex used for validation is '" + re + "')"
+	return msg
+}
+
+// NEQError returns a string explanation of a "must not be equal to" validation failure.
+func NEQError[T any](disallowed T) string {
+	format := "%v"
+	if reflect.ValueOf(disallowed).Kind() == reflect.String {
+		format = "%q"
+	}
+	return fmt.Sprintf("must not be equal to "+format, disallowed)
+}

vendor/k8s.io/apimachinery/pkg/api/validate/content/identifier.go

@@ -0,0 +1,35 @@
+/*
+Copyright 2025 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 content
+
+import (
+	"regexp"
+)
+
+const cIdentifierFmt string = "[A-Za-z_][A-Za-z0-9_]*"
+const identifierErrMsg string = "a valid C identifier must start with alphabetic character or '_', followed by a string of alphanumeric characters or '_'"
+
+var cIdentifierRegexp = regexp.MustCompile("^" + cIdentifierFmt + "$")
+
+// IsCIdentifier tests for a string that conforms the definition of an identifier
+// in C. This checks the format, but not the length.
+func IsCIdentifier(value string) []string {
+	if !cIdentifierRegexp.MatchString(value) {
+		return []string{RegexError(identifierErrMsg, cIdentifierFmt, "my_name", "MY_NAME", "MyName")}
+	}
+	return nil
+}

vendor/k8s.io/apimachinery/pkg/api/validate/content/kube.go

@@ -0,0 +1,101 @@
+/*
+Copyright 2025 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 content
+
+import (
+	"regexp"
+	"strings"
+)
+
+const labelKeyCharFmt string = "[A-Za-z0-9]"
+const labelKeyExtCharFmt string = "[-A-Za-z0-9_.]"
+const labelKeyFmt string = "(" + labelKeyCharFmt + labelKeyExtCharFmt + "*)?" + labelKeyCharFmt
+const labelKeyErrMsg string = "must consist of alphanumeric characters, '-', '_' or '.', and must start and end with an alphanumeric character"
+const labelKeyMaxLength int = 63
+
+var labelKeyRegexp = regexp.MustCompile("^" + labelKeyFmt + "$")
+
+// IsQualifiedName tests whether the value passed is what Kubernetes calls a
+// "qualified name", which is the same as a label key.
+//
+// Deprecated: use IsLabelKey instead.
+var IsQualifiedName = IsLabelKey
+
+// IsLabelKey tests whether the value passed is a valid label key. This format
+// is used to validate many fields in the Kubernetes API.
+// Label keys consist of an optional prefix and a name, separated by a '/'.
+// If the value is not valid, a list of error strings is returned. Otherwise, an
+// empty list (or nil) is returned.
+func IsLabelKey(value string) []string {
+	var errs []string
+	parts := strings.Split(value, "/")
+	var name string
+	switch len(parts) {
+	case 1:
+		name = parts[0]
+	case 2:
+		var prefix string
+		prefix, name = parts[0], parts[1]
+		if len(prefix) == 0 {
+			errs = append(errs, "prefix part "+EmptyError())
+		} else if msgs := IsDNS1123Subdomain(prefix); len(msgs) != 0 {
+			errs = append(errs, prefixEach(msgs, "prefix part ")...)
+		}
+	default:
+		return append(errs, "a valid label key "+RegexError(labelKeyErrMsg, labelKeyFmt, "MyName", "my.name", "123-abc")+
+			" with an optional DNS subdomain prefix and '/' (e.g. 'example.com/MyName')")
+	}
+
+	if len(name) == 0 {
+		errs = append(errs, "name part "+EmptyError())
+	} else if len(name) > labelKeyMaxLength {
+		errs = append(errs, "name part "+MaxLenError(labelKeyMaxLength))
+	}
+	if !labelKeyRegexp.MatchString(name) {
+		errs = append(errs, "name part "+RegexError(labelKeyErrMsg, labelKeyFmt, "MyName", "my.name", "123-abc"))
+	}
+	return errs
+}
+
+const labelValueFmt string = "(" + labelKeyFmt + ")?"
+const labelValueErrMsg string = "a valid label must be an empty string or consist of alphanumeric characters, '-', '_' or '.', and must start and end with an alphanumeric character"
+
+// LabelValueMaxLength is a label's max length
+const LabelValueMaxLength int = 63
+
+var labelValueRegexp = regexp.MustCompile("^" + labelValueFmt + "$")
+
+// IsLabelValue tests whether the value passed is a valid label value.  If
+// the value is not valid, a list of error strings is returned.  Otherwise an
+// empty list (or nil) is returned.
+func IsLabelValue(value string) []string {
+	var errs []string
+	if len(value) > LabelValueMaxLength {
+		errs = append(errs, MaxLenError(LabelValueMaxLength))
+	}
+	if !labelValueRegexp.MatchString(value) {
+		errs = append(errs, RegexError(labelValueErrMsg, labelValueFmt, "MyValue", "my_value", "12345"))
+	}
+	return errs
+}
+
+func prefixEach(msgs []string, prefix string) []string {
+	for i := range msgs {
+		msgs[i] = prefix + msgs[i]
+	}
+	return msgs
+}

vendor/k8s.io/apimachinery/pkg/api/validate/doc.go

@@ -0,0 +1,50 @@
+/*
+Copyright 2024 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 validate holds API validation functions which are designed for use
+// with the k8s.io/code-generator/cmd/validation-gen tool.  Each validation
+// function has a similar fingerprint:
+//
+//	func <Name>(ctx context.Context,
+//	            op operation.Operation,
+//	            fldPath *field.Path,
+//	            value, oldValue <nilable type>,
+//	            <other args...>) field.ErrorList
+//
+// The value and oldValue arguments will always be a nilable type.  If the
+// original value was a string, these will be a *string.  If the original value
+// was a slice or map, these will be the same slice or map type.
+//
+// For a CREATE operation, the oldValue will always be nil.  For an UPDATE
+// operation, either value or oldValue may be nil, e.g. when adding or removing
+// a value in a list-map.  Validators which care about UPDATE operations should
+// look at the opCtx argument to know which operation is being executed.
+//
+// Tightened validation (also known as ratcheting validation) is supported by
+// defining a new validation function. For example:
+//
+//	func TightenedMaxLength(ctx context.Context, op operation.Operation, fldPath *field.Path, value, oldValue *string) field.ErrorList {
+//	  if oldValue != nil && len(MaxLength(ctx, op, fldPath, oldValue, nil)) > 0 {
+//	    // old value is not valid, so this value skips the tightened validation
+//	    return nil
+//	  }
+//	  return MaxLength(ctx, op, fldPath, value, nil)
+//	}
+//
+// In general, we cannot distinguish a non-specified slice or map from one that
+// is specified but empty.  Validators should not rely on nil values, but use
+// len() instead.
+package validate

vendor/k8s.io/apimachinery/pkg/api/validate/each.go

@@ -0,0 +1,186 @@
+/*
+Copyright 2024 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 validate
+
+import (
+	"context"
+	"sort"
+
+	"k8s.io/apimachinery/pkg/api/equality"
+	"k8s.io/apimachinery/pkg/api/operation"
+	"k8s.io/apimachinery/pkg/util/validation/field"
+)
+
+// MatchFunc is a function that compares two values of the same type,
+// according to some criteria, and returns true if they match.
+type MatchFunc[T any] func(T, T) bool
+
+// EachSliceVal performs validation on each element of newSlice using the provided validation function.
+//
+// For update operations, the match function finds corresponding values in oldSlice for each
+// value in newSlice. This comparison can be either full or partial (e.g., matching only
+// specific struct fields that serve as a unique identifier). If match is nil, validation
+// proceeds without considering old values, and the equiv function is not used.
+//
+// For update operations, the equiv function checks if a new value is equivalent to its
+// corresponding old value, enabling validation ratcheting. If equiv is nil but match is
+// provided, the match function is assumed to perform full value comparison.
+//
+// Note: The slice element type must be non-nilable.
+func EachSliceVal[T any](ctx context.Context, op operation.Operation, fldPath *field.Path, newSlice, oldSlice []T,
+	match, equiv MatchFunc[T], validator ValidateFunc[*T]) field.ErrorList {
+	var errs field.ErrorList
+	for i, val := range newSlice {
+		var old *T
+		if match != nil && len(oldSlice) > 0 {
+			old = lookup(oldSlice, val, match)
+		}
+		// If the operation is an update, for validation ratcheting, skip re-validating if the old
+		// value exists and either:
+		// 1. The match function provides full comparison (equiv is nil)
+		// 2. The equiv function confirms the values are equivalent (either directly or semantically)
+		//
+		// The equiv function provides equality comparison when match uses partial comparison.
+		if op.Type == operation.Update && old != nil && (equiv == nil || equiv(val, *old)) {
+			continue
+		}
+		errs = append(errs, validator(ctx, op, fldPath.Index(i), &val, old)...)
+	}
+	return errs
+}
+
+// lookup returns a pointer to the first element in the list that matches the
+// target, according to the provided comparison function, or else nil.
+func lookup[T any](list []T, target T, match MatchFunc[T]) *T {
+	for i := range list {
+		if match(list[i], target) {
+			return &list[i]
+		}
+	}
+	return nil
+}
+
+// EachMapVal validates each value in newMap using the specified validation
+// function, passing the corresponding old value from oldMap if the key exists in oldMap.
+// For update operations, it implements validation ratcheting by skipping validation
+// when the old value exists and the equiv function confirms the values are equivalent.
+// The value-type of the map is assumed to not be nilable.
+// If equiv is nil, value-based ratcheting is disabled and all values will be validated.
+func EachMapVal[K ~string, V any](ctx context.Context, op operation.Operation, fldPath *field.Path, newMap, oldMap map[K]V,
+	equiv MatchFunc[V], validator ValidateFunc[*V]) field.ErrorList {
+	var errs field.ErrorList
+	for key, val := range newMap {
+		var old *V
+		if o, found := oldMap[key]; found {
+			old = &o
+		}
+		// If the operation is an update, for validation ratcheting, skip re-validating if the old
+		// value is found and the equiv function confirms the values are equivalent.
+		if op.Type == operation.Update && old != nil && equiv != nil && equiv(val, *old) {
+			continue
+		}
+		errs = append(errs, validator(ctx, op, fldPath.Key(string(key)), &val, old)...)
+	}
+	return errs
+}
+
+// EachMapKey validates each element of newMap with the specified
+// validation function.
+func EachMapKey[K ~string, T any](ctx context.Context, op operation.Operation, fldPath *field.Path, newMap, oldMap map[K]T,
+	validator ValidateFunc[*K]) field.ErrorList {
+	var errs field.ErrorList
+	for key := range newMap {
+		var old *K
+		if _, found := oldMap[key]; found {
+			old = &key
+		}
+		// If the operation is an update, for validation ratcheting, skip re-validating if
+		// the key is found in oldMap.
+		if op.Type == operation.Update && old != nil {
+			continue
+		}
+		// Note: the field path is the field, not the key.
+		errs = append(errs, validator(ctx, op, fldPath, &key, nil)...)
+	}
+	return errs
+}
+
+// Unique verifies that each element of newSlice is unique, according to the
+// match function. It compares every element of the slice with every other
+// element and returns errors for non-unique items.
+func Unique[T any](_ context.Context, _ operation.Operation, fldPath *field.Path, newSlice, _ []T, match MatchFunc[T]) field.ErrorList {
+	var dups []int
+	for i, val := range newSlice {
+		for j := i + 1; j < len(newSlice); j++ {
+			other := newSlice[j]
+			if match(val, other) {
+				if dups == nil {
+					dups = make([]int, 0, len(newSlice))
+				}
+				if lookup(dups, j, func(a, b int) bool { return a == b }) == nil {
+					dups = append(dups, j)
+				}
+			}
+		}
+	}
+
+	var errs field.ErrorList
+	sort.Ints(dups)
+	for _, i := range dups {
+		var val any = newSlice[i]
+		// TODO: we don't want the whole item to be logged in the error, just
+		// the key(s). Unfortunately, the way errors are rendered, it comes out
+		// as something like "map[string]any{...}" which is not very nice. Once
+		// that is fixed, we can consider adding a way for this function to
+		// specify that just the keys should be rendered in the error.
+		errs = append(errs, field.Duplicate(fldPath.Index(i), val))
+	}
+	return errs
+}
+
+// SemanticDeepEqual is a MatchFunc that uses equality.Semantic.DeepEqual to
+// compare two values.
+// This wrapper is needed because MatchFunc requires a function that takes two
+// arguments of specific type T, while equality.Semantic.DeepEqual takes
+// arguments of type interface{}/any. The wrapper satisfies the type
+// constraints of MatchFunc while leveraging the underlying semantic equality
+// logic. It can be used by any other function that needs to call DeepEqual.
+func SemanticDeepEqual[T any](a, b T) bool {
+	return equality.Semantic.DeepEqual(a, b)
+}
+
+// DirectEqual is a MatchFunc that uses the == operator to compare two values.
+// It can be used by any other function that needs to compare two values
+// directly.
+func DirectEqual[T comparable](a, b T) bool {
+	return a == b
+}
+
+// DirectEqualPtr is a MatchFunc that dereferences two pointers and uses the ==
+// operator to compare the values. If both pointers are nil, it returns true.
+// If one pointer is nil and the other is not, it returns false.
+// It can be used by any other function that needs to compare two pointees
+// directly.
+func DirectEqualPtr[T comparable](a, b *T) bool {
+	if a == b {
+		return true
+	}
+	if a == nil || b == nil {
+		return false
+	}
+	return *a == *b
+}

vendor/k8s.io/apimachinery/pkg/api/validate/enum.go

@@ -0,0 +1,74 @@
+/*
+Copyright 2024 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 validate
+
+import (
+	"context"
+	"slices"
+
+	"k8s.io/apimachinery/pkg/api/operation"
+	"k8s.io/apimachinery/pkg/util/sets"
+	"k8s.io/apimachinery/pkg/util/validation/field"
+)
+
+// Enum verifies that a given value is a member of a set of enum values.
+// Exclude Rules that apply when options are enabled or disabled are also considered.
+// If ANY exclude rule matches for a value, that value is excluded from the enum when validating.
+func Enum[T ~string](_ context.Context, op operation.Operation, fldPath *field.Path, value, _ *T, validValues sets.Set[T], exclusions []EnumExclusion[T]) field.ErrorList {
+	if value == nil {
+		return nil
+	}
+	if !validValues.Has(*value) || isExcluded(op, exclusions, *value) {
+		return field.ErrorList{field.NotSupported[T](fldPath, *value, supportedValues(op, validValues, exclusions))}
+	}
+	return nil
+}
+
+// supportedValues returns a sorted list of supported values.
+// Excluded enum values are not included in the list.
+func supportedValues[T ~string](op operation.Operation, values sets.Set[T], exclusions []EnumExclusion[T]) []T {
+	res := make([]T, 0, len(values))
+	for key := range values {
+		if isExcluded(op, exclusions, key) {
+			continue
+		}
+		res = append(res, key)
+	}
+	slices.Sort(res)
+	return res
+}
+
+// EnumExclusion represents a single enum exclusion rule.
+type EnumExclusion[T ~string] struct {
+	// Value specifies the enum value to be conditionally excluded.
+	Value T
+	// ExcludeWhen determines the condition for exclusion.
+	// If true, the value is excluded if the option is present.
+	// If false, the value is excluded if the option is NOT present.
+	ExcludeWhen bool
+	// Option is the name of the feature option that controls the exclusion.
+	Option string
+}
+
+func isExcluded[T ~string](op operation.Operation, exclusions []EnumExclusion[T], value T) bool {
+	for _, rule := range exclusions {
+		if rule.Value == value && rule.ExcludeWhen == op.HasOption(rule.Option) {
+			return true
+		}
+	}
+	return false
+}

vendor/k8s.io/apimachinery/pkg/api/validate/equality.go

@@ -0,0 +1,38 @@
+/*
+Copyright 2025 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 validate
+
+import (
+	"context"
+
+	"k8s.io/apimachinery/pkg/api/operation"
+	"k8s.io/apimachinery/pkg/api/validate/content"
+	"k8s.io/apimachinery/pkg/util/validation/field"
+)
+
+// NEQ validates that the specified comparable value is not equal to the disallowed value.
+func NEQ[T comparable](_ context.Context, _ operation.Operation, fldPath *field.Path, value, _ *T, disallowed T) field.ErrorList {
+	if value == nil {
+		return nil
+	}
+	if *value == disallowed {
+		return field.ErrorList{
+			field.Invalid(fldPath, *value, content.NEQError(disallowed)).WithOrigin("neq"),
+		}
+	}
+	return nil
+}

vendor/k8s.io/apimachinery/pkg/api/validate/immutable.go

@@ -0,0 +1,40 @@
+/*
+Copyright 2025 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 validate
+
+import (
+	"context"
+
+	"k8s.io/apimachinery/pkg/api/operation"
+	"k8s.io/apimachinery/pkg/util/validation/field"
+)
+
+// Immutable verifies that the specified value has not changed in the course of
+// an update operation. It does nothing if the old value is not provided.
+//
+// This function unconditionally returns a validation error as it
+// relies on the default ratcheting mechanism to only be called when a
+// change to the field has already been detected.  This avoids a redundant
+// equivalence check across ratcheting and this function.
+func Immutable[T any](_ context.Context, op operation.Operation, fldPath *field.Path, _, _ T) field.ErrorList {
+	if op.Type != operation.Update {
+		return nil
+	}
+	return field.ErrorList{
+		field.Invalid(fldPath, nil, "field is immutable").WithOrigin("immutable"),
+	}
+}

vendor/k8s.io/apimachinery/pkg/api/validate/item.go

@@ -0,0 +1,77 @@
+/*
+Copyright 2024 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 validate
+
+import (
+	"context"
+
+	"k8s.io/apimachinery/pkg/api/operation"
+	"k8s.io/apimachinery/pkg/util/validation/field"
+)
+
+// MatchItemFn takes a pointer to an item and returns true if it matches the criteria.
+type MatchItemFn[T any] func(*T) bool
+
+// SliceItem finds the first item in newList that satisfies the match function,
+// and if found, also looks for a matching item in oldList. If the value of the
+// item is the same as the previous value, as per the equiv function, then no
+// validation is performed. Otherwise, it invokes 'itemValidator' on these items.
+//
+// This function processes only the *first* matching item found in newList. It
+// assumes that the match functions targets a unique identifier (primary key)
+// and will match at most one element per list. If this assumption is violated,
+// changes in list order can lead this function to have inconsistent behavior.
+//
+// The fldPath passed to itemValidator is indexed to the matched item's
+// position in newList.
+//
+// This function does not validate items that were removed (present in oldList
+// but not in newList).
+func SliceItem[TList ~[]TItem, TItem any](
+	ctx context.Context, op operation.Operation, fldPath *field.Path,
+	newList, oldList TList,
+	matches MatchItemFn[TItem],
+	equiv MatchFunc[TItem],
+	itemValidator func(ctx context.Context, op operation.Operation, fldPath *field.Path, newObj, oldObj *TItem) field.ErrorList,
+) field.ErrorList {
+	var matchedNew, matchedOld *TItem
+	var newIndex int
+
+	for i := range newList {
+		if matches(&newList[i]) {
+			matchedNew = &newList[i]
+			newIndex = i
+			break
+		}
+	}
+	if matchedNew == nil {
+		return nil
+	}
+
+	for i := range oldList {
+		if matches(&oldList[i]) {
+			matchedOld = &oldList[i]
+			break
+		}
+	}
+
+	if op.Type == operation.Update && matchedOld != nil && equiv(*matchedNew, *matchedOld) {
+		return nil
+	}
+
+	return itemValidator(ctx, op, fldPath.Index(newIndex), matchedNew, matchedOld)
+}

vendor/k8s.io/apimachinery/pkg/api/validate/limits.go

@@ -0,0 +1,57 @@
+/*
+Copyright 2024 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 validate
+
+import (
+	"context"
+
+	"k8s.io/apimachinery/pkg/api/operation"
+	"k8s.io/apimachinery/pkg/api/validate/constraints"
+	"k8s.io/apimachinery/pkg/api/validate/content"
+	"k8s.io/apimachinery/pkg/util/validation/field"
+)
+
+// MaxLength verifies that the specified value is not longer than max
+// characters.
+func MaxLength[T ~string](_ context.Context, _ operation.Operation, fldPath *field.Path, value, _ *T, max int) field.ErrorList {
+	if value == nil {
+		return nil
+	}
+	if len(*value) > max {
+		return field.ErrorList{field.TooLong(fldPath, *value, max).WithOrigin("maxLength")}
+	}
+	return nil
+}
+
+// MaxItems verifies that the specified slice is not longer than max items.
+func MaxItems[T any](_ context.Context, _ operation.Operation, fldPath *field.Path, value, _ []T, max int) field.ErrorList {
+	if len(value) > max {
+		return field.ErrorList{field.TooMany(fldPath, len(value), max).WithOrigin("maxItems")}
+	}
+	return nil
+}
+
+// Minimum verifies that the specified value is greater than or equal to min.
+func Minimum[T constraints.Integer](_ context.Context, _ operation.Operation, fldPath *field.Path, value, _ *T, min T) field.ErrorList {
+	if value == nil {
+		return nil
+	}
+	if *value < min {
+		return field.ErrorList{field.Invalid(fldPath, *value, content.MinError(min)).WithOrigin("minimum")}
+	}
+	return nil
+}

vendor/k8s.io/apimachinery/pkg/api/validate/options.go

@@ -0,0 +1,35 @@
+/*
+Copyright 2025 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 validate
+
+import (
+	"context"
+
+	"k8s.io/apimachinery/pkg/api/operation"
+	"k8s.io/apimachinery/pkg/util/validation/field"
+)
+
+// IfOption conditionally evaluates a validation function. If the option and enabled are both true the validator
+// is called. If the option and enabled are both false the validator is called. Otherwise, the validator is not called.
+func IfOption[T any](ctx context.Context, op operation.Operation, fldPath *field.Path, value, oldValue *T,
+	optionName string, enabled bool, validator func(context.Context, operation.Operation, *field.Path, *T, *T) field.ErrorList,
+) field.ErrorList {
+	if op.HasOption(optionName) == enabled {
+		return validator(ctx, op, fldPath, value, oldValue)
+	}
+	return nil
+}

vendor/k8s.io/apimachinery/pkg/api/validate/required.go

@@ -0,0 +1,133 @@
+/*
+Copyright 2024 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 validate
+
+import (
+	"context"
+
+	"k8s.io/apimachinery/pkg/api/operation"
+	"k8s.io/apimachinery/pkg/util/validation/field"
+)
+
+// RequiredValue verifies that the specified value is not the zero-value for
+// its type.
+func RequiredValue[T comparable](_ context.Context, _ operation.Operation, fldPath *field.Path, value, _ *T) field.ErrorList {
+	var zero T
+	if *value != zero {
+		return nil
+	}
+	return field.ErrorList{field.Required(fldPath, "")}
+}
+
+// RequiredPointer verifies that the specified pointer is not nil.
+func RequiredPointer[T any](_ context.Context, _ operation.Operation, fldPath *field.Path, value, _ *T) field.ErrorList {
+	if value != nil {
+		return nil
+	}
+	return field.ErrorList{field.Required(fldPath, "")}
+}
+
+// RequiredSlice verifies that the specified slice is not empty.
+func RequiredSlice[T any](_ context.Context, _ operation.Operation, fldPath *field.Path, value, _ []T) field.ErrorList {
+	if len(value) > 0 {
+		return nil
+	}
+	return field.ErrorList{field.Required(fldPath, "")}
+}
+
+// RequiredMap verifies that the specified map is not empty.
+func RequiredMap[K comparable, T any](_ context.Context, _ operation.Operation, fldPath *field.Path, value, _ map[K]T) field.ErrorList {
+	if len(value) > 0 {
+		return nil
+	}
+	return field.ErrorList{field.Required(fldPath, "")}
+}
+
+// ForbiddenValue verifies that the specified value is the zero-value for its
+// type.
+func ForbiddenValue[T comparable](_ context.Context, _ operation.Operation, fldPath *field.Path, value, _ *T) field.ErrorList {
+	var zero T
+	if *value == zero {
+		return nil
+	}
+	return field.ErrorList{field.Forbidden(fldPath, "")}
+}
+
+// ForbiddenPointer verifies that the specified pointer is nil.
+func ForbiddenPointer[T any](_ context.Context, _ operation.Operation, fldPath *field.Path, value, _ *T) field.ErrorList {
+	if value == nil {
+		return nil
+	}
+	return field.ErrorList{field.Forbidden(fldPath, "")}
+}
+
+// ForbiddenSlice verifies that the specified slice is empty.
+func ForbiddenSlice[T any](_ context.Context, _ operation.Operation, fldPath *field.Path, value, _ []T) field.ErrorList {
+	if len(value) == 0 {
+		return nil
+	}
+	return field.ErrorList{field.Forbidden(fldPath, "")}
+}
+
+// ForbiddenMap verifies that the specified map is empty.
+func ForbiddenMap[K comparable, T any](_ context.Context, _ operation.Operation, fldPath *field.Path, value, _ map[K]T) field.ErrorList {
+	if len(value) == 0 {
+		return nil
+	}
+	return field.ErrorList{field.Forbidden(fldPath, "")}
+}
+
+// OptionalValue verifies that the specified value is not the zero-value for
+// its type. This is identical to RequiredValue, but the caller should treat an
+// error here as an indication that the optional value was not specified.
+func OptionalValue[T comparable](_ context.Context, _ operation.Operation, fldPath *field.Path, value, _ *T) field.ErrorList {
+	var zero T
+	if *value != zero {
+		return nil
+	}
+	return field.ErrorList{field.Required(fldPath, "optional value was not specified")}
+}
+
+// OptionalPointer verifies that the specified pointer is not nil. This is
+// identical to RequiredPointer, but the caller should treat an error here as an
+// indication that the optional value was not specified.
+func OptionalPointer[T any](_ context.Context, _ operation.Operation, fldPath *field.Path, value, _ *T) field.ErrorList {
+	if value != nil {
+		return nil
+	}
+	return field.ErrorList{field.Required(fldPath, "optional value was not specified")}
+}
+
+// OptionalSlice verifies that the specified slice is not empty. This is
+// identical to RequiredSlice, but the caller should treat an error here as an
+// indication that the optional value was not specified.
+func OptionalSlice[T any](_ context.Context, _ operation.Operation, fldPath *field.Path, value, _ []T) field.ErrorList {
+	if len(value) > 0 {
+		return nil
+	}
+	return field.ErrorList{field.Required(fldPath, "optional value was not specified")}
+}
+
+// OptionalMap verifies that the specified map is not empty. This is identical
+// to RequiredMap, but the caller should treat an error here as an indication that
+// the optional value was not specified.
+func OptionalMap[K comparable, T any](_ context.Context, _ operation.Operation, fldPath *field.Path, value, _ map[K]T) field.ErrorList {
+	if len(value) > 0 {
+		return nil
+	}
+	return field.ErrorList{field.Required(fldPath, "optional value was not specified")}
+}

vendor/k8s.io/apimachinery/pkg/api/validate/strfmt.go

@@ -0,0 +1,290 @@
+/*
+Copyright 2025 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 validate
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"k8s.io/apimachinery/pkg/api/operation"
+	"k8s.io/apimachinery/pkg/api/validate/content"
+	"k8s.io/apimachinery/pkg/util/validation/field"
+)
+
+const (
+	uuidErrorMessage              = "must be a lowercase UUID in 8-4-4-4-12 format"
+	defaultResourceRequestsPrefix = "requests."
+	// Default namespace prefix.
+	resourceDefaultNamespacePrefix = "kubernetes.io/"
+	resourceDeviceMaxLength        = 32
+)
+
+// ShortName verifies that the specified value is a valid "short name"
+// (sometimes known as a "DNS label").
+//   - must not be empty
+//   - must be less than 64 characters long
+//   - must start and end with lower-case alphanumeric characters
+//   - must contain only lower-case alphanumeric characters or dashes
+//
+// All errors returned by this function will be "invalid" type errors. If the
+// caller wants better errors, it must take responsibility for checking things
+// like required/optional and max-length.
+func ShortName[T ~string](_ context.Context, op operation.Operation, fldPath *field.Path, value, _ *T) field.ErrorList {
+	if value == nil {
+		return nil
+	}
+	var allErrs field.ErrorList
+	for _, msg := range content.IsDNS1123Label((string)(*value)) {
+		allErrs = append(allErrs, field.Invalid(fldPath, *value, msg).WithOrigin("format=k8s-short-name"))
+	}
+	return allErrs
+}
+
+// LongName verifies that the specified value is a valid "long name"
+// (sometimes known as a "DNS subdomain").
+//   - must not be empty
+//   - must be less than 254 characters long
+//   - each element must start and end with lower-case alphanumeric characters
+//   - each element must contain only lower-case alphanumeric characters or dashes
+//
+// All errors returned by this function will be "invalid" type errors. If the
+// caller wants better errors, it must take responsibility for checking things
+// like required/optional and max-length.
+func LongName[T ~string](_ context.Context, op operation.Operation, fldPath *field.Path, value, _ *T) field.ErrorList {
+	if value == nil {
+		return nil
+	}
+	var allErrs field.ErrorList
+	for _, msg := range content.IsDNS1123Subdomain((string)(*value)) {
+		allErrs = append(allErrs, field.Invalid(fldPath, *value, msg).WithOrigin("format=k8s-long-name"))
+	}
+	return allErrs
+}
+
+// LabelKey verifies that the specified value is a valid label key.
+// A label key is composed of an optional prefix and a name, separated by a '/'.
+// The name part is required and must:
+//   - be 63 characters or less
+//   - begin and end with an alphanumeric character ([a-z0-9A-Z])
+//   - contain only alphanumeric characters, dashes (-), underscores (_), or dots (.)
+//
+// The prefix is optional and must:
+//   - be a DNS subdomain
+//   - be no more than 253 characters
+func LabelKey[T ~string](_ context.Context, op operation.Operation, fldPath *field.Path, value, _ *T) field.ErrorList {
+	if value == nil {
+		return nil
+	}
+	var allErrs field.ErrorList
+	for _, msg := range content.IsLabelKey((string)(*value)) {
+		allErrs = append(allErrs, field.Invalid(fldPath, *value, msg).WithOrigin("format=k8s-label-key"))
+	}
+	return allErrs
+}
+
+// LongNameCaseless verifies that the specified value is a valid "long name"
+// (sometimes known as a "DNS subdomain"), but is case-insensitive.
+//   - must not be empty
+//   - must be less than 254 characters long
+//   - each element must start and end with alphanumeric characters
+//   - each element must contain only alphanumeric characters or dashes
+//
+// Deprecated: Case-insensitive names are not recommended as they can lead to ambiguity
+// (e.g., 'Foo', 'FOO', and 'foo' would be allowed names for foo). Use LongName for strict, lowercase validation.
+func LongNameCaseless[T ~string](_ context.Context, op operation.Operation, fldPath *field.Path, value, _ *T) field.ErrorList {
+	if value == nil {
+		return nil
+	}
+	var allErrs field.ErrorList
+	for _, msg := range content.IsDNS1123SubdomainCaseless((string)(*value)) {
+		allErrs = append(allErrs, field.Invalid(fldPath, *value, msg).WithOrigin("format=k8s-long-name-caseless"))
+	}
+	return allErrs
+}
+
+// LabelValue verifies that the specified value is a valid label value.
+//   - can be empty
+//   - must be no more than 63 characters
+//   - must start and end with alphanumeric characters
+//   - must contain only alphanumeric characters, dashes, underscores, or dots
+func LabelValue[T ~string](_ context.Context, op operation.Operation, fldPath *field.Path, value, _ *T) field.ErrorList {
+	if value == nil {
+		return nil
+	}
+	var allErrs field.ErrorList
+	for _, msg := range content.IsLabelValue((string)(*value)) {
+		allErrs = append(allErrs, field.Invalid(fldPath, *value, msg).WithOrigin("format=k8s-label-value"))
+	}
+	return allErrs
+}
+
+// UUID verifies that the specified value is a valid UUID (RFC 4122).
+//   - must be 36 characters long
+//   - must be in the normalized form `xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx`
+//   - must use only lowercase hexadecimal characters
+func UUID[T ~string](_ context.Context, op operation.Operation, fldPath *field.Path, value, _ *T) field.ErrorList {
+	if value == nil {
+		return nil
+	}
+	val := (string)(*value)
+	if len(val) != 36 {
+		return field.ErrorList{field.Invalid(fldPath, val, uuidErrorMessage).WithOrigin("format=k8s-uuid")}
+	}
+	for idx := 0; idx < len(val); idx++ {
+		character := val[idx]
+		switch idx {
+		case 8, 13, 18, 23:
+			if character != '-' {
+				return field.ErrorList{field.Invalid(fldPath, val, uuidErrorMessage).WithOrigin("format=k8s-uuid")}
+			}
+		default:
+			// should be lower case hexadecimal.
+			if (character < '0' || character > '9') && (character < 'a' || character > 'f') {
+				return field.ErrorList{field.Invalid(fldPath, val, uuidErrorMessage).WithOrigin("format=k8s-uuid")}
+			}
+		}
+	}
+	return nil
+}
+
+// ResourcePoolName verifies that the specified value is one or more valid "long name"
+// parts separated by a '/' and no longer than 253 characters.
+func ResourcePoolName[T ~string](ctx context.Context, op operation.Operation, fldPath *field.Path, value, _ *T) field.ErrorList {
+	if value == nil {
+		return nil
+	}
+	val := (string)(*value)
+	var allErrs field.ErrorList
+	if len(val) > 253 {
+		allErrs = append(allErrs, field.TooLong(fldPath, val, 253))
+	}
+	parts := strings.Split(val, "/")
+	for i, part := range parts {
+		if len(part) == 0 {
+			allErrs = append(allErrs, field.Invalid(fldPath, val, fmt.Sprintf("segment %d: must not be empty", i)))
+			continue
+		}
+		// Note that we are overwriting the origin from the underlying LongName validation.
+		allErrs = append(allErrs, LongName(ctx, op, fldPath, &part, nil).PrefixDetail(fmt.Sprintf("segment %d: ", i))...)
+	}
+	return allErrs.WithOrigin("format=k8s-resource-pool-name")
+}
+
+// ExtendedResourceName verifies that the specified value is a valid extended resource name.
+// An extended resource name is a domain-prefixed name that does not use the "kubernetes.io"
+// or "requests." prefixes. Must be a valid label key when appended to "requests.", as in quota.
+//
+//   - must have slash domain and name.
+//   - must not have the "kubernetes.io" domain
+//   - must not have the "requests." prefix
+//   - name must be 63 characters or less
+//   - must be a valid label key when appended to "requests.", as in quota
+//     -- must contain only alphanumeric characters, dashes, underscores, or dots
+//     -- must end with an alphanumeric character
+func ExtendedResourceName[T ~string](_ context.Context, op operation.Operation, fldPath *field.Path, value, _ *T) field.ErrorList {
+	if value == nil {
+		return nil
+	}
+	val := string(*value)
+	allErrs := field.ErrorList{}
+	if !strings.Contains(val, "/") {
+		allErrs = append(allErrs, field.Invalid(fldPath, val, "a name must be a domain-prefixed path, such as 'example.com/my-prop'"))
+	} else if strings.Contains(val, resourceDefaultNamespacePrefix) {
+		allErrs = append(allErrs, field.Invalid(fldPath, val, fmt.Sprintf("must not have %q domain", resourceDefaultNamespacePrefix)))
+	}
+	// Ensure extended resource is not type of quota.
+	if strings.HasPrefix(val, defaultResourceRequestsPrefix) {
+		allErrs = append(allErrs, field.Invalid(fldPath, val, fmt.Sprintf("must not have %q prefix", defaultResourceRequestsPrefix)))
+	}
+
+	// Ensure it satisfies the rules in IsLabelKey() after converted into quota resource name
+	nameForQuota := fmt.Sprintf("%s%s", defaultResourceRequestsPrefix, val)
+	for _, msg := range content.IsLabelKey(nameForQuota) {
+		allErrs = append(allErrs, field.Invalid(fldPath, val, msg))
+	}
+	return allErrs.WithOrigin("format=k8s-extended-resource-name")
+}
+
+// resourcesQualifiedName verifies that the specified value is a valid Kubernetes resources
+// qualified name.
+//   - must not be empty
+//   - must be composed of an optional prefix and a name, separated by a slash (e.g., "prefix/name")
+//   - the prefix, if specified, must be a DNS subdomain
+//   - the name part must be a C identifier
+//   - the name part must be no more than 32 characters
+func resourcesQualifiedName[T ~string](ctx context.Context, op operation.Operation, fldPath *field.Path, value, _ *T) field.ErrorList {
+	if value == nil {
+		return nil
+	}
+	var allErrs field.ErrorList
+	s := string(*value)
+	parts := strings.Split(s, "/")
+	// TODO: This validation and the corresponding handwritten validation validateQualifiedName in
+	// pkg/apis/resource/validation/validation.go are not validating whether there are more than 1
+	// slash. This should be fixed in both places.
+	switch len(parts) {
+	case 1:
+		allErrs = append(allErrs, validateCIdentifier(parts[0], resourceDeviceMaxLength, fldPath)...)
+	case 2:
+		if len(parts[0]) == 0 {
+			allErrs = append(allErrs, field.Invalid(fldPath, "", "prefix must not be empty"))
+		} else {
+			if len(parts[0]) > 63 {
+				allErrs = append(allErrs, field.TooLong(fldPath, parts[0], 63))
+			}
+			allErrs = append(allErrs, LongName(ctx, op, fldPath, &parts[0], nil).PrefixDetail("prefix: ")...)
+		}
+		if len(parts[1]) == 0 {
+			allErrs = append(allErrs, field.Invalid(fldPath, "", "name must not be empty"))
+		} else {
+			allErrs = append(allErrs, validateCIdentifier(parts[1], resourceDeviceMaxLength, fldPath)...)
+		}
+	}
+	return allErrs
+}
+
+// ResourceFullyQualifiedName verifies that the specified value is a valid Kubernetes
+// fully qualified name.
+//   - must not be empty
+//   - must be composed of a prefix and a name, separated by a slash (e.g., "prefix/name")
+//   - the prefix must be a DNS subdomain
+//   - the name part must be a C identifier
+//   - the name part must be no more than 32 characters
+func ResourceFullyQualifiedName[T ~string](ctx context.Context, op operation.Operation, fldPath *field.Path, value, _ *T) field.ErrorList {
+	if value == nil {
+		return nil
+	}
+	var allErrs field.ErrorList
+	s := string(*value)
+	allErrs = append(allErrs, resourcesQualifiedName(ctx, op, fldPath, &s, nil)...)
+	if !strings.Contains(s, "/") {
+		allErrs = append(allErrs, field.Invalid(fldPath, s, "a fully qualified name must be a domain and a name separated by a slash"))
+	}
+	return allErrs.WithOrigin("format=k8s-resource-fully-qualified-name")
+}
+
+func validateCIdentifier(id string, length int, fldPath *field.Path) field.ErrorList {
+	var allErrs field.ErrorList
+	if len(id) > length {
+		allErrs = append(allErrs, field.TooLong(fldPath, id, length))
+	}
+	for _, msg := range content.IsCIdentifier(id) {
+		allErrs = append(allErrs, field.Invalid(fldPath, id, msg))
+	}
+	return allErrs
+}

vendor/k8s.io/apimachinery/pkg/api/validate/subfield.go

@@ -0,0 +1,53 @@
+/*
+Copyright 2025 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 validate
+
+import (
+	"context"
+
+	"k8s.io/apimachinery/pkg/api/operation"
+	"k8s.io/apimachinery/pkg/util/validation/field"
+)
+
+// GetFieldFunc is a function that extracts a field from a type and returns a
+// nilable value.
+type GetFieldFunc[Tstruct any, Tfield any] func(*Tstruct) Tfield
+
+// Subfield validates a subfield of a struct against a validator function. If
+// the value of the subfield is the same as the previous value, as per the
+// equiv function, then no validation is performed.
+//
+// The fldPath passed to the validator includes the subfield name.
+func Subfield[Tstruct any, Tfield any](
+	ctx context.Context, op operation.Operation, fldPath *field.Path,
+	newStruct, oldStruct *Tstruct,
+	fldName string, getField GetFieldFunc[Tstruct, Tfield],
+	equiv MatchFunc[Tfield],
+	validator ValidateFunc[Tfield],
+) field.ErrorList {
+	var errs field.ErrorList
+	newVal := getField(newStruct)
+	var oldVal Tfield
+	if oldStruct != nil {
+		oldVal = getField(oldStruct)
+	}
+	if op.Type == operation.Update && oldStruct != nil && equiv(newVal, oldVal) {
+		return nil
+	}
+	errs = append(errs, validator(ctx, op, fldPath.Child(fldName), newVal, oldVal)...)
+	return errs
+}

vendor/k8s.io/apimachinery/pkg/api/validate/testing.go

@@ -0,0 +1,35 @@
+/*
+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 validate
+
+import (
+	"context"
+
+	"k8s.io/apimachinery/pkg/api/operation"
+	"k8s.io/apimachinery/pkg/util/validation/field"
+)
+
+// FixedResult asserts a fixed boolean result.  This is mostly useful for
+// testing.
+func FixedResult[T any](_ context.Context, op operation.Operation, fldPath *field.Path, value, _ T, result bool, arg string) field.ErrorList {
+	if result {
+		return nil
+	}
+	return field.ErrorList{
+		field.Invalid(fldPath, value, "forced failure: "+arg).WithOrigin("validateFalse"),
+	}
+}

vendor/k8s.io/apimachinery/pkg/api/validate/union.go

@@ -0,0 +1,227 @@
+/*
+Copyright 2024 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 validate
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"k8s.io/apimachinery/pkg/api/operation"
+	"k8s.io/apimachinery/pkg/util/validation/field"
+)
+
+// ExtractorFn extracts a value from a parent object. Depending on the context,
+// that could be the value of a field or just whether that field was set or
+// not.
+// Note: obj is not guaranteed to be non-nil, need to handle nil obj in the
+// extractor.
+type ExtractorFn[T, V any] func(obj T) V
+
+// UnionValidationOptions configures how union validation behaves
+type UnionValidationOptions struct {
+	// ErrorForEmpty returns error when no fields are set (nil means no error)
+	ErrorForEmpty func(fldPath *field.Path, allFields []string) *field.Error
+
+	// ErrorForMultiple returns error when multiple fields are set (nil means no error)
+	ErrorForMultiple func(fldPath *field.Path, specifiedFields []string, allFields []string) *field.Error
+}
+
+// Union verifies that exactly one member of a union is specified.
+//
+// UnionMembership must define all the members of the union.
+//
+// For example:
+//
+//	var UnionMembershipForABC := validate.NewUnionMembership(
+//	 	validate.NewUnionMember("a"),
+//	 	validate.NewUnionMember("b"),
+//	 	validate.NewUnionMember("c"),
+//	 )
+//	func ValidateABC(ctx context.Context, op operation.Operation, fldPath *field.Path, in *ABC) (errs field.ErrorList) {
+//		errs = append(errs, Union(ctx, op, fldPath, in, oldIn, UnionMembershipForABC,
+//			func(in *ABC) bool { return in.A != nil },
+//			func(in *ABC) bool { return in.B != "" },
+//			func(in *ABC) bool { return in.C != 0 },
+//		)...)
+//		return errs
+//	}
+func Union[T any](_ context.Context, op operation.Operation, fldPath *field.Path, obj, oldObj T, union *UnionMembership, isSetFns ...ExtractorFn[T, bool]) field.ErrorList {
+	options := UnionValidationOptions{
+		ErrorForEmpty: func(fldPath *field.Path, allFields []string) *field.Error {
+			return field.Invalid(fldPath, "",
+				fmt.Sprintf("must specify one of: %s", strings.Join(allFields, ", ")))
+		},
+		ErrorForMultiple: func(fldPath *field.Path, specifiedFields []string, allFields []string) *field.Error {
+			return field.Invalid(fldPath, fmt.Sprintf("{%s}", strings.Join(specifiedFields, ", ")),
+				fmt.Sprintf("must specify exactly one of: %s", strings.Join(allFields, ", ")))
+		},
+	}
+
+	return unionValidate(op, fldPath, obj, oldObj, union, options, isSetFns...)
+}
+
+// DiscriminatedUnion verifies specified union member matches the discriminator.
+//
+// UnionMembership must define all the members of the union and the discriminator.
+//
+// For example:
+//
+//	var UnionMembershipForABC = validate.NewDiscriminatedUnionMembership("type",
+//	 	validate.NewDiscriminatedUnionMember("a", "A"),
+//	 	validate.NewDiscriminatedUnionMember("b", "B"),
+//	 	validate.NewDiscriminatedUnionMember("c", "C"),
+//	)
+//	func ValidateABC(ctx context.Context, op operation.Operation, fldPath *field.Path, in *ABC) (errs field.ErrorList) {
+//		errs = append(errs, DiscriminatedUnion(ctx, op, fldPath, in, oldIn, UnionMembershipForABC,
+//			func(in *ABC) string { return string(in.Type) },
+//			func(in *ABC) bool { return in.A != nil },
+//			func(in *ABC) bool { return in.B != "" },
+//			func(in *ABC) bool { return in.C != 0 },
+//		)...)
+//		return errs
+//	}
+//
+// It is not an error for the discriminatorValue to be unknown.  That must be
+// validated on its own.
+func DiscriminatedUnion[T any, D ~string](_ context.Context, op operation.Operation, fldPath *field.Path, obj, oldObj T, union *UnionMembership, discriminatorExtractor ExtractorFn[T, D], isSetFns ...ExtractorFn[T, bool]) (errs field.ErrorList) {
+	if len(union.members) != len(isSetFns) {
+		return field.ErrorList{
+			field.InternalError(fldPath,
+				fmt.Errorf("number of extractors (%d) does not match number of union members (%d)",
+					len(isSetFns), len(union.members))),
+		}
+	}
+	var changed bool
+	discriminatorValue := discriminatorExtractor(obj)
+	if op.Type == operation.Update {
+		oldDiscriminatorValue := discriminatorExtractor(oldObj)
+		changed = discriminatorValue != oldDiscriminatorValue
+	}
+
+	for i, fieldIsSet := range isSetFns {
+		member := union.members[i]
+		isDiscriminatedMember := string(discriminatorValue) == member.discriminatorValue
+		newIsSet := fieldIsSet(obj)
+		if op.Type == operation.Update && !changed {
+			oldIsSet := fieldIsSet(oldObj)
+			changed = changed || newIsSet != oldIsSet
+		}
+		if newIsSet && !isDiscriminatedMember {
+			errs = append(errs, field.Invalid(fldPath.Child(member.fieldName), "",
+				fmt.Sprintf("may only be specified when `%s` is %q", union.discriminatorName, member.discriminatorValue)))
+		} else if !newIsSet && isDiscriminatedMember {
+			errs = append(errs, field.Invalid(fldPath.Child(member.fieldName), "",
+				fmt.Sprintf("must be specified when `%s` is %q", union.discriminatorName, discriminatorValue)))
+		}
+	}
+	// If the union discriminator and membership is unchanged, we don't need to
+	// re-validate.
+	if op.Type == operation.Update && !changed {
+		return nil
+	}
+	return errs
+}
+
+// UnionMember represents a member of a union.
+type UnionMember struct {
+	fieldName          string
+	discriminatorValue string
+}
+
+// NewUnionMember returns a new UnionMember for the given field name.
+func NewUnionMember(fieldName string) UnionMember {
+	return UnionMember{fieldName: fieldName}
+}
+
+// NewDiscriminatedUnionMember returns a new UnionMember for the given field
+// name and discriminator value.
+func NewDiscriminatedUnionMember(fieldName, discriminatorValue string) UnionMember {
+	return UnionMember{fieldName: fieldName, discriminatorValue: discriminatorValue}
+}
+
+// UnionMembership represents an ordered list of field union memberships.
+type UnionMembership struct {
+	discriminatorName string
+	members           []UnionMember
+}
+
+// NewUnionMembership returns a new UnionMembership for the given list of members.
+// Member names must be unique.
+func NewUnionMembership(member ...UnionMember) *UnionMembership {
+	return NewDiscriminatedUnionMembership("", member...)
+}
+
+// NewDiscriminatedUnionMembership returns a new UnionMembership for the given discriminator field and list of members.
+// members are provided in the same way as for NewUnionMembership.
+func NewDiscriminatedUnionMembership(discriminatorFieldName string, members ...UnionMember) *UnionMembership {
+	return &UnionMembership{
+		discriminatorName: discriminatorFieldName,
+		members:           members,
+	}
+}
+
+// allFields returns a string listing all the field names of the member of a union for use in error reporting.
+func (u UnionMembership) allFields() []string {
+	memberNames := make([]string, 0, len(u.members))
+	for _, f := range u.members {
+		memberNames = append(memberNames, fmt.Sprintf("`%s`", f.fieldName))
+	}
+	return memberNames
+}
+
+func unionValidate[T any](op operation.Operation, fldPath *field.Path,
+	obj, oldObj T, union *UnionMembership, options UnionValidationOptions, isSetFns ...ExtractorFn[T, bool],
+) field.ErrorList {
+	if len(union.members) != len(isSetFns) {
+		return field.ErrorList{
+			field.InternalError(fldPath,
+				fmt.Errorf("number of extractors (%d) does not match number of union members (%d)",
+					len(isSetFns), len(union.members))),
+		}
+	}
+
+	var specifiedFields []string
+	var changed bool
+	for i, fieldIsSet := range isSetFns {
+		newIsSet := fieldIsSet(obj)
+		if op.Type == operation.Update && !changed {
+			oldIsSet := fieldIsSet(oldObj)
+			changed = changed || newIsSet != oldIsSet
+		}
+		if newIsSet {
+			specifiedFields = append(specifiedFields, union.members[i].fieldName)
+		}
+	}
+
+	// If the union membership is unchanged, we don't need to re-validate.
+	if op.Type == operation.Update && !changed {
+		return nil
+	}
+
+	var errs field.ErrorList
+
+	if len(specifiedFields) > 1 && options.ErrorForMultiple != nil {
+		errs = append(errs, options.ErrorForMultiple(fldPath, specifiedFields, union.allFields()))
+	}
+
+	if len(specifiedFields) == 0 && options.ErrorForEmpty != nil {
+		errs = append(errs, options.ErrorForEmpty(fldPath, union.allFields()))
+	}
+
+	return errs
+}

vendor/k8s.io/apimachinery/pkg/api/validate/update.go

@@ -0,0 +1,160 @@
+/*
+Copyright 2025 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 validate
+
+import (
+	"context"
+
+	"k8s.io/apimachinery/pkg/api/equality"
+	"k8s.io/apimachinery/pkg/api/operation"
+	"k8s.io/apimachinery/pkg/util/validation/field"
+)
+
+// UpdateConstraint represents a constraint on update operations
+type UpdateConstraint int
+
+const (
+	// NoSet prevents unset->set transitions
+	NoSet UpdateConstraint = iota
+	// NoUnset prevents set->unset transitions
+	NoUnset
+	// NoModify prevents value changes but allows set/unset transitions
+	NoModify
+)
+
+// UpdateValueByCompare verifies update constraints for comparable value types.
+func UpdateValueByCompare[T comparable](_ context.Context, op operation.Operation, fldPath *field.Path, value, oldValue *T, constraints ...UpdateConstraint) field.ErrorList {
+	if op.Type != operation.Update {
+		return nil
+	}
+
+	var errs field.ErrorList
+	var zero T
+
+	for _, constraint := range constraints {
+		switch constraint {
+		case NoSet:
+			if *oldValue == zero && *value != zero {
+				errs = append(errs, field.Invalid(fldPath, nil, "field cannot be set once created").WithOrigin("update"))
+			}
+		case NoUnset:
+			if *oldValue != zero && *value == zero {
+				errs = append(errs, field.Invalid(fldPath, nil, "field cannot be cleared once set").WithOrigin("update"))
+			}
+		case NoModify:
+			// Rely on validation ratcheting to detect that the value has changed.
+			// This check only verifies that the field was set in both the old and
+			// new objects, confirming it was a modification, not a set/unset.
+			if *oldValue != zero && *value != zero {
+				errs = append(errs, field.Invalid(fldPath, nil, "field cannot be modified once set").WithOrigin("update"))
+			}
+		}
+	}
+
+	return errs
+}
+
+// UpdatePointer verifies update constraints for pointer types.
+func UpdatePointer[T any](_ context.Context, op operation.Operation, fldPath *field.Path, value, oldValue *T, constraints ...UpdateConstraint) field.ErrorList {
+	if op.Type != operation.Update {
+		return nil
+	}
+
+	var errs field.ErrorList
+
+	for _, constraint := range constraints {
+		switch constraint {
+		case NoSet:
+			if oldValue == nil && value != nil {
+				errs = append(errs, field.Invalid(fldPath, nil, "field cannot be set once created").WithOrigin("update"))
+			}
+		case NoUnset:
+			if oldValue != nil && value == nil {
+				errs = append(errs, field.Invalid(fldPath, nil, "field cannot be cleared once set").WithOrigin("update"))
+			}
+		case NoModify:
+			// Rely on validation ratcheting to detect that the value has changed.
+			// This check only verifies that the field was non-nil in both the old
+			// and new objects, confirming it was a modification, not a set/unset.
+			if oldValue != nil && value != nil {
+				errs = append(errs, field.Invalid(fldPath, nil, "field cannot be modified once set").WithOrigin("update"))
+			}
+		}
+	}
+
+	return errs
+}
+
+// UpdateValueByReflect verifies update constraints for non-comparable value types using reflection.
+func UpdateValueByReflect[T any](_ context.Context, op operation.Operation, fldPath *field.Path, value, oldValue *T, constraints ...UpdateConstraint) field.ErrorList {
+	if op.Type != operation.Update {
+		return nil
+	}
+
+	var errs field.ErrorList
+	var zero T
+	valueIsZero := equality.Semantic.DeepEqual(*value, zero)
+	oldValueIsZero := equality.Semantic.DeepEqual(*oldValue, zero)
+
+	for _, constraint := range constraints {
+		switch constraint {
+		case NoSet:
+			if oldValueIsZero && !valueIsZero {
+				errs = append(errs, field.Invalid(fldPath, nil, "field cannot be set once created").WithOrigin("update"))
+			}
+		case NoUnset:
+			if !oldValueIsZero && valueIsZero {
+				errs = append(errs, field.Invalid(fldPath, nil, "field cannot be cleared once set").WithOrigin("update"))
+			}
+		case NoModify:
+			// Rely on validation ratcheting to detect that the value has changed.
+			// This check only verifies that the field was set in both the old and
+			// new objects, confirming it was a modification, not a set/unset.
+			if !oldValueIsZero && !valueIsZero {
+				errs = append(errs, field.Invalid(fldPath, nil, "field cannot be modified once set").WithOrigin("update"))
+			}
+		}
+	}
+
+	return errs
+}
+
+// UpdateStruct verifies update constraints for non-pointer struct types.
+// Non-pointer structs are always considered "set" and never "unset".
+func UpdateStruct[T any](_ context.Context, op operation.Operation, fldPath *field.Path, value, oldValue *T, constraints ...UpdateConstraint) field.ErrorList {
+	if op.Type != operation.Update {
+		return nil
+	}
+
+	var errs field.ErrorList
+
+	for _, constraint := range constraints {
+		switch constraint {
+		case NoSet, NoUnset:
+			// These constraints don't apply to non-pointer structs
+			// as they can't be unset. This should be caught at generation time.
+			continue
+		case NoModify:
+			// Non-pointer structs are always considered "set". Therefore, any
+			// change detected by validation ratcheting is a modification.
+			// The deep equality check is redundant and has been removed.
+			errs = append(errs, field.Invalid(fldPath, nil, "field cannot be modified once set").WithOrigin("update"))
+		}
+	}
+
+	return errs
+}

vendor/k8s.io/apimachinery/pkg/api/validate/zeroorone.go

@@ -0,0 +1,59 @@
+/*
+Copyright 2024 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 validate
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"k8s.io/apimachinery/pkg/api/operation"
+	"k8s.io/apimachinery/pkg/util/validation/field"
+)
+
+// ZeroOrOneOfUnion verifies that at most one member of a union is specified.
+//
+// ZeroOrOneOfMembership must define all the members of the union.
+//
+// For example:
+//
+//	var ZeroOrOneOfMembershipForABC = validate.NewUnionMembership(
+//		validate.NewUnionMember("a"),
+//		validate.NewUnionMember("b"),
+//		validate.NewUnionMember("c"),
+//	)
+//	func ValidateABC(ctx context.Context, op operation.Operation, fldPath *field.Path, in *ABC) (errs field.ErrorList) {
+//		errs = append(errs, validate.ZeroOrOneOfUnion(ctx, op, fldPath, in, oldIn,
+//			ZeroOrOneOfMembershipForABC,
+//			func(in *ABC) bool { return in.A != nil },
+//			func(in *ABC) bool { return in.B != ""},
+//			func(in *ABC) bool { return in.C != 0 },
+//		)...)
+//		return errs
+//	}
+func ZeroOrOneOfUnion[T any](_ context.Context, op operation.Operation, fldPath *field.Path, obj, oldObj T, union *UnionMembership, isSetFns ...ExtractorFn[T, bool]) field.ErrorList {
+	options := UnionValidationOptions{
+		ErrorForEmpty: nil,
+		ErrorForMultiple: func(fldPath *field.Path, specifiedFields []string, allFields []string) *field.Error {
+			return field.Invalid(fldPath, fmt.Sprintf("{%s}", strings.Join(specifiedFields, ", ")),
+				fmt.Sprintf("must specify at most one of: %s", strings.Join(allFields, ", "))).WithOrigin("zeroOrOneOf")
+		},
+	}
+
+	errs := unionValidate(op, fldPath, obj, oldObj, union, options, isSetFns...)
+	return errs
+}

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

@@ -0,0 +1,11 @@
+# See the OWNERS docs at https://go.k8s.io/owners
+
+# Disable inheritance as this is an api owners file
+options:
+  no_parent_owners: true
+approvers:
+  - api-approvers
+reviewers:
+  - api-reviewers
+labels:
+  - kind/api-change

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

@@ -0,0 +1,18 @@
+/*
+Copyright 2017 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 validation contains generic api type validation functions.
+package validation

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

@@ -0,0 +1,94 @@
+/*
+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 validation
+
+import (
+	"strings"
+
+	"k8s.io/apimachinery/pkg/util/validation"
+	"k8s.io/apimachinery/pkg/util/validation/field"
+)
+
+// IsNegativeErrorMsg is a error message for value must be greater than or equal to 0.
+const IsNegativeErrorMsg string = `must be greater than or equal to 0`
+
+// ValidateNameFunc validates that the provided name is valid for a given resource type.
+// Not all resources have the same validation rules for names. Prefix is true
+// if the name will have a value appended to it.  If the name is not valid,
+// this returns a list of descriptions of individual characteristics of the
+// value that were not valid.  Otherwise this returns an empty list or nil.
+type ValidateNameFunc func(name string, prefix bool) []string
+
+// ValidateNameFuncWithErrors validates that the provided name is valid for a
+// given resource type.
+//
+// This is similar to ValidateNameFunc, except that it produces an ErrorList.
+type ValidateNameFuncWithErrors func(fldPath *field.Path, name string) field.ErrorList
+
+// NameIsDNSSubdomain is a ValidateNameFunc for names that must be a DNS subdomain.
+func NameIsDNSSubdomain(name string, prefix bool) []string {
+	if prefix {
+		name = maskTrailingDash(name)
+	}
+	return validation.IsDNS1123Subdomain(name)
+}
+
+// NameIsDNSLabel is a ValidateNameFunc for names that must be a DNS 1123 label.
+func NameIsDNSLabel(name string, prefix bool) []string {
+	if prefix {
+		name = maskTrailingDash(name)
+	}
+	return validation.IsDNS1123Label(name)
+}
+
+// NameIsDNS1035Label is a ValidateNameFunc for names that must be a DNS 952 label.
+func NameIsDNS1035Label(name string, prefix bool) []string {
+	if prefix {
+		name = maskTrailingDash(name)
+	}
+	return validation.IsDNS1035Label(name)
+}
+
+// ValidateNamespaceName can be used to check whether the given namespace name is valid.
+// Prefix indicates this name will be used as part of generation, in which case
+// trailing dashes are allowed.
+var ValidateNamespaceName = NameIsDNSLabel
+
+// ValidateServiceAccountName can be used to check whether the given service account name is valid.
+// Prefix indicates this name will be used as part of generation, in which case
+// trailing dashes are allowed.
+var ValidateServiceAccountName = NameIsDNSSubdomain
+
+// maskTrailingDash replaces the final character of a string with a subdomain safe
+// value if it is a dash and if the length of this string is greater than 1. Note that
+// this is used when a value could be appended to the string, see ValidateNameFunc
+// for more info.
+func maskTrailingDash(name string) string {
+	if len(name) > 1 && strings.HasSuffix(name, "-") {
+		return name[:len(name)-2] + "a"
+	}
+	return name
+}
+
+// ValidateNonnegativeField validates that given value is not negative.
+func ValidateNonnegativeField(value int64, fldPath *field.Path) field.ErrorList {
+	allErrs := field.ErrorList{}
+	if value < 0 {
+		allErrs = append(allErrs, field.Invalid(fldPath, value, IsNegativeErrorMsg).WithOrigin("minimum"))
+	}
+	return allErrs
+}

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

@@ -0,0 +1,343 @@
+/*
+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 validation
+
+import (
+	"fmt"
+	"strings"
+
+	apiequality "k8s.io/apimachinery/pkg/api/equality"
+	"k8s.io/apimachinery/pkg/api/meta"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	v1validation "k8s.io/apimachinery/pkg/apis/meta/v1/validation"
+	"k8s.io/apimachinery/pkg/runtime/schema"
+	"k8s.io/apimachinery/pkg/util/sets"
+	"k8s.io/apimachinery/pkg/util/validation"
+	"k8s.io/apimachinery/pkg/util/validation/field"
+)
+
+// FieldImmutableErrorMsg is a error message for field is immutable.
+const FieldImmutableErrorMsg string = `field is immutable`
+
+const TotalAnnotationSizeLimitB int = 256 * (1 << 10) // 256 kB
+
+// BannedOwners is a black list of object that are not allowed to be owners.
+var BannedOwners = map[schema.GroupVersionKind]struct{}{
+	{Group: "", Version: "v1", Kind: "Event"}: {},
+}
+
+// ValidateAnnotations validates that a set of annotations are correctly defined.
+func ValidateAnnotations(annotations map[string]string, fldPath *field.Path) field.ErrorList {
+	allErrs := field.ErrorList{}
+	for k := range annotations {
+		// The rule is QualifiedName except that case doesn't matter, so convert to lowercase before checking.
+		for _, msg := range validation.IsQualifiedName(strings.ToLower(k)) {
+			allErrs = append(allErrs, field.Invalid(fldPath, k, msg)).WithOrigin("format=k8s-label-key")
+		}
+	}
+	if err := ValidateAnnotationsSize(annotations); err != nil {
+		allErrs = append(allErrs, field.TooLong(fldPath, "" /*unused*/, TotalAnnotationSizeLimitB))
+	}
+	return allErrs
+}
+
+func ValidateAnnotationsSize(annotations map[string]string) error {
+	var totalSize int64
+	for k, v := range annotations {
+		totalSize += (int64)(len(k)) + (int64)(len(v))
+	}
+	if totalSize > (int64)(TotalAnnotationSizeLimitB) {
+		return fmt.Errorf("annotations size %d is larger than limit %d", totalSize, TotalAnnotationSizeLimitB)
+	}
+	return nil
+}
+
+func validateOwnerReference(ownerReference metav1.OwnerReference, fldPath *field.Path) field.ErrorList {
+	allErrs := field.ErrorList{}
+	gvk := schema.FromAPIVersionAndKind(ownerReference.APIVersion, ownerReference.Kind)
+	// gvk.Group is empty for the legacy group.
+	if len(gvk.Version) == 0 {
+		allErrs = append(allErrs, field.Invalid(fldPath.Child("apiVersion"), ownerReference.APIVersion, "version must not be empty"))
+	}
+	if len(gvk.Kind) == 0 {
+		allErrs = append(allErrs, field.Invalid(fldPath.Child("kind"), ownerReference.Kind, "must not be empty"))
+	}
+	if len(ownerReference.Name) == 0 {
+		allErrs = append(allErrs, field.Invalid(fldPath.Child("name"), ownerReference.Name, "must not be empty"))
+	}
+	if len(ownerReference.UID) == 0 {
+		allErrs = append(allErrs, field.Invalid(fldPath.Child("uid"), ownerReference.UID, "must not be empty"))
+	}
+	if _, ok := BannedOwners[gvk]; ok {
+		allErrs = append(allErrs, field.Invalid(fldPath, ownerReference, fmt.Sprintf("%s is disallowed from being an owner", gvk)))
+	}
+	return allErrs
+}
+
+// ValidateOwnerReferences validates that a set of owner references are correctly defined.
+func ValidateOwnerReferences(ownerReferences []metav1.OwnerReference, fldPath *field.Path) field.ErrorList {
+	allErrs := field.ErrorList{}
+	firstControllerName := ""
+	for _, ref := range ownerReferences {
+		allErrs = append(allErrs, validateOwnerReference(ref, fldPath)...)
+		if ref.Controller != nil && *ref.Controller {
+			curControllerName := ref.Kind + "/" + ref.Name
+			if firstControllerName != "" {
+				allErrs = append(allErrs, field.Invalid(fldPath, ownerReferences,
+					fmt.Sprintf("Only one reference can have Controller set to true. Found \"true\" in references for %v and %v", firstControllerName, curControllerName)))
+			} else {
+				firstControllerName = curControllerName
+			}
+		}
+	}
+	return allErrs
+}
+
+// ValidateFinalizerName validates finalizer names.
+func ValidateFinalizerName(stringValue string, fldPath *field.Path) field.ErrorList {
+	allErrs := field.ErrorList{}
+	for _, msg := range validation.IsQualifiedName(stringValue) {
+		allErrs = append(allErrs, field.Invalid(fldPath, stringValue, msg))
+	}
+
+	return allErrs
+}
+
+// ValidateNoNewFinalizers validates the new finalizers has no new finalizers compare to old finalizers.
+func ValidateNoNewFinalizers(newFinalizers []string, oldFinalizers []string, fldPath *field.Path) field.ErrorList {
+	allErrs := field.ErrorList{}
+	extra := sets.NewString(newFinalizers...).Difference(sets.NewString(oldFinalizers...))
+	if len(extra) != 0 {
+		allErrs = append(allErrs, field.Forbidden(fldPath, fmt.Sprintf("no new finalizers can be added if the object is being deleted, found new finalizers %#v", extra.List())))
+	}
+	return allErrs
+}
+
+// ValidateImmutableField validates the new value and the old value are deeply equal.
+func ValidateImmutableField(newVal, oldVal interface{}, fldPath *field.Path) field.ErrorList {
+	allErrs := field.ErrorList{}
+	if !apiequality.Semantic.DeepEqual(oldVal, newVal) {
+		allErrs = append(allErrs, field.Invalid(fldPath, newVal, FieldImmutableErrorMsg))
+	}
+	return allErrs
+}
+
+// ValidateObjectMeta validates an object's metadata on creation. It expects that name generation has already
+// been performed.
+func ValidateObjectMeta(objMeta *metav1.ObjectMeta, requiresNamespace bool, nameFn ValidateNameFunc, fldPath *field.Path) field.ErrorList {
+	metadata, err := meta.Accessor(objMeta)
+	if err != nil {
+		var allErrs field.ErrorList
+		allErrs = append(allErrs, field.Invalid(fldPath, objMeta, err.Error()))
+		return allErrs
+	}
+	return ValidateObjectMetaAccessor(metadata, requiresNamespace, nameFn, fldPath)
+}
+
+// objectMetaValidationOptions defines behavioral modifications for validating
+// an ObjectMeta.
+type objectMetaValidationOptions struct {
+	/* nothing here yet */
+}
+
+// ObjectMetaValidationOption specifies a behavioral modifier for
+// ValidateObjectMetaWithOpts and ValidateObjectMetaAccessorWithOpts.
+type ObjectMetaValidationOption func(opts *objectMetaValidationOptions)
+
+// ValidateObjectMetaWithOpts validates an object's metadata on creation. It
+// expects that name generation has already been performed, so name validation
+// is always executed.
+//
+// This is similar to ValidateObjectMeta, but uses options to buy future-safety
+// and uses different signature for the name validation function.  It also does
+// not directly validate the generateName field, because name generation
+// should have already been performed and it is the result of that generastion
+// that must conform to the nameFn.
+func ValidateObjectMetaWithOpts(objMeta *metav1.ObjectMeta, isNamespaced bool, nameFn ValidateNameFuncWithErrors, fldPath *field.Path, options ...ObjectMetaValidationOption) field.ErrorList {
+	metadata, err := meta.Accessor(objMeta)
+	if err != nil {
+		var allErrs field.ErrorList
+		allErrs = append(allErrs, field.InternalError(fldPath, err))
+		return allErrs
+	}
+	return ValidateObjectMetaAccessorWithOpts(metadata, isNamespaced, nameFn, fldPath, options...)
+}
+
+// ValidateObjectMetaAccessor validates an object's metadata on creation. It expects that name generation has already
+// been performed.
+func ValidateObjectMetaAccessor(meta metav1.Object, requiresNamespace bool, nameFn ValidateNameFunc, fldPath *field.Path) field.ErrorList {
+	var allErrs field.ErrorList
+
+	if len(meta.GetGenerateName()) != 0 {
+		for _, msg := range nameFn(meta.GetGenerateName(), true) {
+			allErrs = append(allErrs, field.Invalid(fldPath.Child("generateName"), meta.GetGenerateName(), msg))
+		}
+	}
+	// If the generated name validates, but the calculated value does not, it's a problem with generation, and we
+	// report it here. This may confuse users, but indicates a programming bug and still must be validated.
+	// If there are multiple fields out of which one is required then add an or as a separator
+	if len(meta.GetName()) == 0 {
+		allErrs = append(allErrs, field.Required(fldPath.Child("name"), "name or generateName is required"))
+	} else {
+		for _, msg := range nameFn(meta.GetName(), false) {
+			allErrs = append(allErrs, field.Invalid(fldPath.Child("name"), meta.GetName(), msg))
+		}
+	}
+
+	return append(allErrs, validateObjectMetaAccessorWithOptsCommon(meta, requiresNamespace, fldPath, nil)...)
+}
+
+// ValidateObjectMetaAccessorWithOpts validates an object's metadata on
+// creation. It expects that name generation has already been performed, so
+// name validation is always executed.
+//
+// This is similar to ValidateObjectMetaAccessor, but uses options to buy
+// future-safety and uses different signature for the name validation function.
+// It also does not directly validate the generateName field, because name
+// generation should have already been performed and it is the result of that
+// generastion that must conform to the nameFn.
+func ValidateObjectMetaAccessorWithOpts(meta metav1.Object, isNamespaced bool, nameFn ValidateNameFuncWithErrors, fldPath *field.Path, options ...ObjectMetaValidationOption) field.ErrorList {
+	opts := objectMetaValidationOptions{}
+	for _, opt := range options {
+		opt(&opts)
+	}
+
+	var allErrs field.ErrorList
+
+	// generateName is not directly validated here. Types can have
+	// different rules for name generation, and the nameFn is for validating
+	// the post-generation data, not the input. In the past we assumed that
+	// name generation was always "append 5 random characters", but that's not
+	// NECESSARILY true. Also, the nameFn should always be considering the max
+	// length of the name, and it doesn't know enough about the name generation
+	// to do that. Also, given a bad generateName, the user will get errors
+	// for both the generateName and name fields. We will focus validation on
+	// the name field, which should give a better UX overall.
+	// TODO(thockin): should we do a max-length check here? e.g. 1K or 4K?
+
+	if len(meta.GetGenerateName()) != 0 && len(meta.GetName()) == 0 {
+		allErrs = append(allErrs,
+			field.InternalError(fldPath.Child("name"), fmt.Errorf("generateName was specified (%q), but no name was generated", meta.GetGenerateName())))
+	}
+	if len(meta.GetName()) == 0 {
+		allErrs = append(allErrs, field.Required(fldPath.Child("name"), "name or generateName is required"))
+	} else {
+		allErrs = append(allErrs, nameFn(fldPath.Child("name"), meta.GetName())...)
+	}
+
+	return append(allErrs, validateObjectMetaAccessorWithOptsCommon(meta, isNamespaced, fldPath, &opts)...)
+}
+
+// validateObjectMetaAccessorWithOptsCommon is a shared function for validating
+// the parts of an ObjectMeta with are handled the same in both paths..
+func validateObjectMetaAccessorWithOptsCommon(meta metav1.Object, isNamespaced bool, fldPath *field.Path, _ *objectMetaValidationOptions) field.ErrorList {
+	var allErrs field.ErrorList
+
+	if isNamespaced {
+		if len(meta.GetNamespace()) == 0 {
+			allErrs = append(allErrs, field.Required(fldPath.Child("namespace"), ""))
+		} else {
+			for _, msg := range ValidateNamespaceName(meta.GetNamespace(), false) {
+				allErrs = append(allErrs, field.Invalid(fldPath.Child("namespace"), meta.GetNamespace(), msg))
+			}
+		}
+	} else {
+		if len(meta.GetNamespace()) != 0 {
+			// TODO(thockin): change to "may not be specified on this type" or something
+			allErrs = append(allErrs, field.Forbidden(fldPath.Child("namespace"), "not allowed on this type"))
+		}
+	}
+
+	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, ValidateFinalizers(meta.GetFinalizers(), fldPath.Child("finalizers"))...)
+	allErrs = append(allErrs, v1validation.ValidateManagedFields(meta.GetManagedFields(), fldPath.Child("managedFields"))...)
+	return allErrs
+}
+
+// ValidateFinalizers tests if the finalizers name are valid, and if there are conflicting finalizers.
+func ValidateFinalizers(finalizers []string, fldPath *field.Path) field.ErrorList {
+	allErrs := field.ErrorList{}
+	hasFinalizerOrphanDependents := false
+	hasFinalizerDeleteDependents := false
+	for _, finalizer := range finalizers {
+		allErrs = append(allErrs, ValidateFinalizerName(finalizer, fldPath)...)
+		if finalizer == metav1.FinalizerOrphanDependents {
+			hasFinalizerOrphanDependents = true
+		}
+		if finalizer == metav1.FinalizerDeleteDependents {
+			hasFinalizerDeleteDependents = true
+		}
+	}
+	if hasFinalizerDeleteDependents && hasFinalizerOrphanDependents {
+		allErrs = append(allErrs, field.Invalid(fldPath, finalizers, fmt.Sprintf("finalizer %s and %s cannot be both set", metav1.FinalizerOrphanDependents, metav1.FinalizerDeleteDependents)))
+	}
+	return allErrs
+}
+
+// ValidateObjectMetaUpdate validates an object's metadata when updated.
+func ValidateObjectMetaUpdate(newMeta, oldMeta *metav1.ObjectMeta, fldPath *field.Path) field.ErrorList {
+	newMetadata, err := meta.Accessor(newMeta)
+	if err != nil {
+		allErrs := field.ErrorList{}
+		allErrs = append(allErrs, field.Invalid(fldPath, newMeta, err.Error()))
+		return allErrs
+	}
+	oldMetadata, err := meta.Accessor(oldMeta)
+	if err != nil {
+		allErrs := field.ErrorList{}
+		allErrs = append(allErrs, field.Invalid(fldPath, oldMeta, err.Error()))
+		return allErrs
+	}
+	return ValidateObjectMetaAccessorUpdate(newMetadata, oldMetadata, fldPath)
+}
+
+// ValidateObjectMetaAccessorUpdate validates an object's metadata when updated.
+func ValidateObjectMetaAccessorUpdate(newMeta, oldMeta metav1.Object, fldPath *field.Path) field.ErrorList {
+	var allErrs field.ErrorList
+
+	// Finalizers cannot be added if the object is already being deleted.
+	if oldMeta.GetDeletionTimestamp() != nil {
+		allErrs = append(allErrs, ValidateNoNewFinalizers(newMeta.GetFinalizers(), oldMeta.GetFinalizers(), fldPath.Child("finalizers"))...)
+	}
+
+	// Reject updates that don't specify a resource version
+	if len(newMeta.GetResourceVersion()) == 0 {
+		allErrs = append(allErrs, field.Invalid(fldPath.Child("resourceVersion"), newMeta.GetResourceVersion(), "must be specified for an update"))
+	}
+
+	// Generation shouldn't be decremented
+	if newMeta.GetGeneration() < oldMeta.GetGeneration() {
+		allErrs = append(allErrs, field.Invalid(fldPath.Child("generation"), newMeta.GetGeneration(), "must not be decremented"))
+	}
+
+	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"))...)
+	allErrs = append(allErrs, ValidateImmutableField(newMeta.GetCreationTimestamp(), oldMeta.GetCreationTimestamp(), fldPath.Child("creationTimestamp"))...)
+	allErrs = append(allErrs, ValidateImmutableField(newMeta.GetDeletionTimestamp(), oldMeta.GetDeletionTimestamp(), fldPath.Child("deletionTimestamp"))...)
+	allErrs = append(allErrs, ValidateImmutableField(newMeta.GetDeletionGracePeriodSeconds(), oldMeta.GetDeletionGracePeriodSeconds(), fldPath.Child("deletionGracePeriodSeconds"))...)
+
+	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
+}