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5b4ab70a3f
Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>. Introduce new `VolumeAttachment` API Object **What this PR does / why we need it**: Introduce a new `VolumeAttachment` API Object. This object will be used by the CSI volume plugin to enable external attachers (see design [here](https://github.com/kubernetes/community/pull/1258). In the future, existing volume plugins can be refactored to use this object as well. **Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: Part of issue https://github.com/kubernetes/features/issues/178 **Special notes for your reviewer**: None **Release note**: ```release-note NONE ``` Kubernetes-commit: ebe8ea73fd1a961779242dfbb629befa153e96fc
114 lines
2.8 KiB
Go
114 lines
2.8 KiB
Go
/*
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Copyright 2014 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package runtime
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import (
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"fmt"
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"reflect"
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"k8s.io/apimachinery/pkg/runtime/schema"
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)
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type notRegisteredErr struct {
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gvk schema.GroupVersionKind
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target GroupVersioner
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t reflect.Type
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}
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func NewNotRegisteredErrForKind(gvk schema.GroupVersionKind) error {
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return ¬RegisteredErr{gvk: gvk}
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}
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func NewNotRegisteredErrForType(t reflect.Type) error {
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return ¬RegisteredErr{t: t}
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}
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func NewNotRegisteredErrForTarget(t reflect.Type, target GroupVersioner) error {
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return ¬RegisteredErr{t: t, target: target}
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}
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func (k *notRegisteredErr) Error() string {
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if k.t != nil && k.target != nil {
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return fmt.Sprintf("%v is not suitable for converting to %q", k.t, k.target)
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}
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if k.t != nil {
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return fmt.Sprintf("no kind is registered for the type %v", k.t)
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}
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if len(k.gvk.Kind) == 0 {
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return fmt.Sprintf("no version %q has been registered", k.gvk.GroupVersion())
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}
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if k.gvk.Version == APIVersionInternal {
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return fmt.Sprintf("no kind %q is registered for the internal version of group %q", k.gvk.Kind, k.gvk.Group)
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}
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return fmt.Sprintf("no kind %q is registered for version %q", k.gvk.Kind, k.gvk.GroupVersion())
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}
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// IsNotRegisteredError returns true if the error indicates the provided
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// object or input data is not registered.
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func IsNotRegisteredError(err error) bool {
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if err == nil {
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return false
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}
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_, ok := err.(*notRegisteredErr)
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return ok
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}
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type missingKindErr struct {
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data string
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}
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func NewMissingKindErr(data string) error {
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return &missingKindErr{data}
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}
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func (k *missingKindErr) Error() string {
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return fmt.Sprintf("Object 'Kind' is missing in '%s'", k.data)
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}
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// IsMissingKind returns true if the error indicates that the provided object
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// is missing a 'Kind' field.
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func IsMissingKind(err error) bool {
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if err == nil {
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return false
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}
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_, ok := err.(*missingKindErr)
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return ok
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}
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type missingVersionErr struct {
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data string
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}
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func NewMissingVersionErr(data string) error {
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return &missingVersionErr{data}
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}
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func (k *missingVersionErr) Error() string {
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return fmt.Sprintf("Object 'apiVersion' is missing in '%s'", k.data)
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}
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// IsMissingVersion returns true if the error indicates that the provided object
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// is missing a 'Version' field.
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func IsMissingVersion(err error) bool {
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if err == nil {
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return false
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}
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_, ok := err.(*missingVersionErr)
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return ok
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}
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