rebase: update kubernetes to v1.20.0

updated kubernetes packages to latest
release.

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>

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

@@ -17,9 +17,7 @@ reviewers:
 - saad-ali
 - janetkuo
 - tallclair
-- eparis
 - dims
 - hongchaodeng
 - krousey
 - cjcullen
-- david-mcmahon

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

@@ -18,6 +18,7 @@ package errors
 
 import (
 	"encoding/json"
+	"errors"
 	"fmt"
 	"net/http"
 	"reflect"
@@ -29,14 +30,6 @@ import (
 	"k8s.io/apimachinery/pkg/util/validation/field"
 )
 
-const (
-	// StatusTooManyRequests means the server experienced too many requests within a
-	// given window and that the client must wait to perform the action again.
-	// DEPRECATED: please use http.StatusTooManyRequests, this will be removed in
-	// the future version.
-	StatusTooManyRequests = http.StatusTooManyRequests
-)
-
 // StatusError is an error intended for consumption by a REST API server; it can also be
 // reconstructed by clients from a REST response. Public to allow easy type switches.
 type StatusError struct {
@@ -483,127 +476,141 @@ func NewGenericServerResponse(code int, verb string, qualifiedResource schema.Gr
 }
 
 // IsNotFound returns true if the specified error was created by NewNotFound.
+// It supports wrapped errors.
 func IsNotFound(err error) bool {
 	return ReasonForError(err) == metav1.StatusReasonNotFound
 }
 
 // IsAlreadyExists determines if the err is an error which indicates that a specified resource already exists.
+// It supports wrapped errors.
 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.
 func IsConflict(err error) bool {
 	return ReasonForError(err) == metav1.StatusReasonConflict
 }
 
 // IsInvalid determines if the err is an error which indicates the provided resource is not valid.
+// It supports wrapped errors.
 func IsInvalid(err error) bool {
 	return ReasonForError(err) == metav1.StatusReasonInvalid
 }
 
 // IsGone is true if the error indicates the requested resource is no longer available.
+// It supports wrapped errors.
 func IsGone(err error) bool {
 	return ReasonForError(err) == metav1.StatusReasonGone
 }
 
 // IsResourceExpired is true if the error indicates the resource has expired and the current action is
 // no longer possible.
+// It supports wrapped errors.
 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.
 func IsNotAcceptable(err error) bool {
 	return ReasonForError(err) == metav1.StatusReasonNotAcceptable
 }
 
 // IsUnsupportedMediaType determines if err is an error which indicates that the request failed due to an invalid Content-Type header
+// It supports wrapped errors.
 func IsUnsupportedMediaType(err error) bool {
 	return ReasonForError(err) == metav1.StatusReasonUnsupportedMediaType
 }
 
 // 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.
 func IsMethodNotSupported(err error) bool {
 	return ReasonForError(err) == metav1.StatusReasonMethodNotAllowed
 }
 
 // IsServiceUnavailable is true if the error indicates the underlying service is no longer available.
+// It supports wrapped errors.
 func IsServiceUnavailable(err error) bool {
 	return ReasonForError(err) == metav1.StatusReasonServiceUnavailable
 }
 
 // IsBadRequest determines if err is an error which indicates that the request is invalid.
+// It supports wrapped errors.
 func IsBadRequest(err error) bool {
 	return ReasonForError(err) == metav1.StatusReasonBadRequest
 }
 
 // IsUnauthorized determines if err is an error which indicates that the request is unauthorized and
 // requires authentication by the user.
+// It supports wrapped errors.
 func IsUnauthorized(err error) bool {
 	return ReasonForError(err) == metav1.StatusReasonUnauthorized
 }
 
 // IsForbidden determines if err is an error which indicates that the request is forbidden and cannot
 // be completed as requested.
+// It supports wrapped errors.
 func IsForbidden(err error) bool {
 	return ReasonForError(err) == metav1.StatusReasonForbidden
 }
 
 // IsTimeout determines if err is an error which indicates that request times out due to long
 // processing.
+// It supports wrapped errors.
 func IsTimeout(err error) bool {
 	return ReasonForError(err) == metav1.StatusReasonTimeout
 }
 
 // IsServerTimeout determines if err is an error which indicates that the request needs to be retried
 // by the client.
+// It supports wrapped errors.
 func IsServerTimeout(err error) bool {
 	return ReasonForError(err) == metav1.StatusReasonServerTimeout
 }
 
 // IsInternalError determines if err is an error which indicates an internal server error.
+// It supports wrapped errors.
 func IsInternalError(err error) bool {
 	return ReasonForError(err) == metav1.StatusReasonInternalError
 }
 
 // IsTooManyRequests determines if err is an error which indicates that there are too many requests
 // that the server cannot handle.
+// It supports wrapped errors.
 func IsTooManyRequests(err error) bool {
 	if ReasonForError(err) == metav1.StatusReasonTooManyRequests {
 		return true
 	}
-	switch t := err.(type) {
-	case APIStatus:
-		return t.Status().Code == http.StatusTooManyRequests
+	if status := APIStatus(nil); errors.As(err, &status) {
+		return status.Status().Code == http.StatusTooManyRequests
 	}
 	return false
 }
 
 // IsRequestEntityTooLargeError determines if err is an error which indicates
 // the request entity is too large.
+// It supports wrapped errors.
 func IsRequestEntityTooLargeError(err error) bool {
 	if ReasonForError(err) == metav1.StatusReasonRequestEntityTooLarge {
 		return true
 	}
-	switch t := err.(type) {
-	case APIStatus:
-		return t.Status().Code == http.StatusRequestEntityTooLarge
+	if status := APIStatus(nil); errors.As(err, &status) {
+		return status.Status().Code == http.StatusRequestEntityTooLarge
 	}
 	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.
 func IsUnexpectedServerError(err error) bool {
-	switch t := err.(type) {
-	case APIStatus:
-		if d := t.Status().Details; d != nil {
-			for _, cause := range d.Causes {
-				if cause.Type == metav1.CauseTypeUnexpectedServerResponse {
-					return true
-				}
+	if status := APIStatus(nil); errors.As(err, &status) && status.Status().Details != nil {
+		for _, cause := range status.Status().Details.Causes {
+			if cause.Type == metav1.CauseTypeUnexpectedServerResponse {
+				return true
 			}
 		}
 	}
@@ -611,38 +618,37 @@ func IsUnexpectedServerError(err error) bool {
 }
 
 // IsUnexpectedObjectError determines if err is due to an unexpected object from the master.
+// It supports wrapped errors.
 func IsUnexpectedObjectError(err error) bool {
-	_, ok := err.(*UnexpectedObjectError)
-	return err != nil && ok
+	uoe := &UnexpectedObjectError{}
+	return err != nil && errors.As(err, &uoe)
 }
 
 // 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.
 func SuggestsClientDelay(err error) (int, bool) {
-	switch t := err.(type) {
-	case APIStatus:
-		if 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
-			}
+	if t := APIStatus(nil); 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.
 func ReasonForError(err error) metav1.StatusReason {
-	switch t := err.(type) {
-	case APIStatus:
-		return t.Status().Reason
+	if status := APIStatus(nil); errors.As(err, &status) {
+		return status.Status().Reason
 	}
 	return metav1.StatusReasonUnknown
 }

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

@@ -14,10 +14,8 @@ reviewers:
 - gmarek
 - janetkuo
 - ncdc
-- eparis
 - dims
 - krousey
 - resouer
-- david-mcmahon
 - mfojtik
 - jianhuiz

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

@@ -0,0 +1,102 @@
+/*
+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.
+// 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) {
+	if conditions == nil {
+		return
+	}
+	existingCondition := FindStatusCondition(*conditions, newCondition.Type)
+	if existingCondition == nil {
+		if newCondition.LastTransitionTime.IsZero() {
+			newCondition.LastTransitionTime = metav1.NewTime(time.Now())
+		}
+		*conditions = append(*conditions, newCondition)
+		return
+	}
+
+	if existingCondition.Status != newCondition.Status {
+		existingCondition.Status = newCondition.Status
+		if !newCondition.LastTransitionTime.IsZero() {
+			existingCondition.LastTransitionTime = newCondition.LastTransitionTime
+		} else {
+			existingCondition.LastTransitionTime = metav1.NewTime(time.Now())
+		}
+	}
+
+	existingCondition.Reason = newCondition.Reason
+	existingCondition.Message = newCondition.Message
+	existingCondition.ObservedGeneration = newCondition.ObservedGeneration
+}
+
+// RemoveStatusCondition removes the corresponding conditionType from conditions.
+// conditions must be non-nil.
+func RemoveStatusCondition(conditions *[]metav1.Condition, conditionType string) {
+	if conditions == nil {
+		return
+	}
+	newConditions := make([]metav1.Condition, 0, len(*conditions)-1)
+	for _, condition := range *conditions {
+		if condition.Type != conditionType {
+			newConditions = append(newConditions, condition)
+		}
+	}
+
+	*conditions = newConditions
+}
+
+// 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/meta.go

@@ -25,7 +25,7 @@ import (
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apimachinery/pkg/runtime/schema"
 	"k8s.io/apimachinery/pkg/types"
-	"k8s.io/klog"
+	"k8s.io/klog/v2"
 )
 
 // errNotList is returned when an object implements the Object style interfaces but not the List style
@@ -40,8 +40,6 @@ func CommonAccessor(obj interface{}) (metav1.Common, error) {
 	switch t := obj.(type) {
 	case List:
 		return t, nil
-	case metav1.ListInterface:
-		return t, nil
 	case ListMetaAccessor:
 		if m := t.GetListMeta(); m != nil {
 			return m, nil
@@ -72,8 +70,6 @@ func ListAccessor(obj interface{}) (List, error) {
 	switch t := obj.(type) {
 	case List:
 		return t, nil
-	case metav1.ListInterface:
-		return t, nil
 	case ListMetaAccessor:
 		if m := t.GetListMeta(); m != nil {
 			return m, nil

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

@@ -65,6 +65,9 @@ type DefaultRESTMapper struct {
 }
 
 func (m *DefaultRESTMapper) String() string {
+	if m == nil {
+		return "<nil>"
+	}
 	return fmt.Sprintf("DefaultRESTMapper{kindToPluralResource=%v}", m.kindToPluralResource)
 }
 

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

@@ -9,8 +9,5 @@ reviewers:
 - mikedanese
 - saad-ali
 - janetkuo
-- tallclair
-- eparis
 - xiang90
 - mbohlool
-- david-mcmahon

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

@@ -17,7 +17,7 @@ limitations under the License.
 
 // This file was autogenerated by go-to-protobuf. Do not edit it manually!
 
-syntax = 'proto2';
+syntax = "proto2";
 
 package k8s.io.apimachinery.pkg.api.resource;
 

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

@@ -20,6 +20,7 @@ import (
 	"bytes"
 	"errors"
 	"fmt"
+	"math"
 	"math/big"
 	"strconv"
 	"strings"
@@ -120,7 +121,7 @@ const (
 )
 
 // MustParse turns the given string into a quantity or panics; for tests
-// or others cases where you know the string is valid.
+// or other cases where you know the string is valid.
 func MustParse(str string) Quantity {
 	q, err := ParseQuantity(str)
 	if err != nil {
@@ -442,6 +443,36 @@ func (q *Quantity) CanonicalizeBytes(out []byte) (result, suffix []byte) {
 	}
 }
 
+// AsApproximateFloat64 returns a float64 representation of the quantity which may
+// lose precision. 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
+	}
+
+	// multiply by the appropriate exponential scale
+	switch q.Format {
+	case DecimalExponent, DecimalSI:
+		return base * math.Pow10(exponent)
+	default:
+		// fast path for exponents that can fit in 64 bits
+		if exponent > 0 && exponent < 7 {
+			return base * float64(int64(1)<<(exponent*10))
+		}
+		return base * math.Pow(2, float64(exponent*10))
+	}
+}
+
 // 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) {
@@ -598,6 +629,9 @@ const int64QuantityExpectedBytes = 18
 // 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)

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

@@ -23,6 +23,7 @@ import (
 	"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.
@@ -75,7 +76,7 @@ func maskTrailingDash(name string) string {
 	return name
 }
 
-// Validates that given value is not negative.
+// ValidateNonnegativeField validates that given value is not negative.
 func ValidateNonnegativeField(value int64, fldPath *field.Path) field.ErrorList {
 	allErrs := field.ErrorList{}
 	if value < 0 {

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

@@ -30,6 +30,7 @@ import (
 	"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
@@ -80,6 +81,7 @@ func validateOwnerReference(ownerReference metav1.OwnerReference, fldPath *field
 	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{}
 	controllerName := ""
@@ -97,7 +99,7 @@ func ValidateOwnerReferences(ownerReferences []metav1.OwnerReference, fldPath *f
 	return allErrs
 }
 
-// Validate finalizer names
+// ValidateFinalizerName validates finalizer names.
 func ValidateFinalizerName(stringValue string, fldPath *field.Path) field.ErrorList {
 	allErrs := field.ErrorList{}
 	for _, msg := range validation.IsQualifiedName(stringValue) {
@@ -107,6 +109,7 @@ func ValidateFinalizerName(stringValue string, fldPath *field.Path) field.ErrorL
 	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...))
@@ -116,6 +119,7 @@ func ValidateNoNewFinalizers(newFinalizers []string, oldFinalizers []string, fld
 	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) {
@@ -137,7 +141,7 @@ func ValidateObjectMeta(objMeta *metav1.ObjectMeta, requiresNamespace bool, name
 	return ValidateObjectMetaAccessor(metadata, requiresNamespace, nameFn, fldPath)
 }
 
-// ValidateObjectMeta validates an object's metadata on creation. It expects that name generation has already
+// ValidateObjectMetaAccessor validates an object's metadata on creation. It expects that name generation has already
 // been performed.
 // It doesn't return an error for rootscoped resources with namespace, because namespace should already be cleared before.
 func ValidateObjectMetaAccessor(meta metav1.Object, requiresNamespace bool, nameFn ValidateNameFunc, fldPath *field.Path) field.ErrorList {
@@ -208,7 +212,7 @@ func ValidateFinalizers(finalizers []string, fldPath *field.Path) field.ErrorLis
 	return allErrs
 }
 
-// ValidateObjectMetaUpdate validates an object's metadata when updated
+// 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 {
@@ -225,6 +229,7 @@ func ValidateObjectMetaUpdate(newMeta, oldMeta *metav1.ObjectMeta, fldPath *fiel
 	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
 

vendor/k8s.io/apimachinery/pkg/api/validation/path/name.go

@@ -62,7 +62,7 @@ func IsValidPathSegmentPrefix(name string) []string {
 func ValidatePathSegmentName(name string, prefix bool) []string {
 	if prefix {
 		return IsValidPathSegmentPrefix(name)
-	} else {
-		return IsValidPathSegmentName(name)
 	}
+
+	return IsValidPathSegmentName(name)
 }