| /* |
| 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 volumeattachment |
| |
| import ( |
| "context" |
| |
| storageapiv1beta1 "k8s.io/api/storage/v1beta1" |
| "k8s.io/apimachinery/pkg/runtime" |
| "k8s.io/apimachinery/pkg/runtime/schema" |
| "k8s.io/apimachinery/pkg/util/validation/field" |
| genericapirequest "k8s.io/apiserver/pkg/endpoints/request" |
| "k8s.io/apiserver/pkg/storage/names" |
| "k8s.io/kubernetes/pkg/api/legacyscheme" |
| "k8s.io/kubernetes/pkg/apis/storage" |
| "k8s.io/kubernetes/pkg/apis/storage/validation" |
| ) |
| |
| // volumeAttachmentStrategy implements behavior for VolumeAttachment objects |
| type volumeAttachmentStrategy struct { |
| runtime.ObjectTyper |
| names.NameGenerator |
| } |
| |
| // Strategy is the default logic that applies when creating and updating |
| // VolumeAttachment objects via the REST API. |
| var Strategy = volumeAttachmentStrategy{legacyscheme.Scheme, names.SimpleNameGenerator} |
| |
| func (volumeAttachmentStrategy) NamespaceScoped() bool { |
| return false |
| } |
| |
| // ResetBeforeCreate clears the Status field which is not allowed to be set by end users on creation. |
| func (volumeAttachmentStrategy) PrepareForCreate(ctx context.Context, obj runtime.Object) { |
| var groupVersion schema.GroupVersion |
| |
| if requestInfo, found := genericapirequest.RequestInfoFrom(ctx); found { |
| groupVersion = schema.GroupVersion{Group: requestInfo.APIGroup, Version: requestInfo.APIVersion} |
| } |
| |
| switch groupVersion { |
| case storageapiv1beta1.SchemeGroupVersion: |
| // allow modification of status for v1beta1 |
| default: |
| volumeAttachment := obj.(*storage.VolumeAttachment) |
| volumeAttachment.Status = storage.VolumeAttachmentStatus{} |
| } |
| } |
| |
| func (volumeAttachmentStrategy) Validate(ctx context.Context, obj runtime.Object) field.ErrorList { |
| volumeAttachment := obj.(*storage.VolumeAttachment) |
| |
| errs := validation.ValidateVolumeAttachment(volumeAttachment) |
| |
| var groupVersion schema.GroupVersion |
| |
| if requestInfo, found := genericapirequest.RequestInfoFrom(ctx); found { |
| groupVersion = schema.GroupVersion{Group: requestInfo.APIGroup, Version: requestInfo.APIVersion} |
| } |
| |
| switch groupVersion { |
| case storageapiv1beta1.SchemeGroupVersion: |
| // no extra validation |
| default: |
| // tighten up validation of newly created v1 attachments |
| errs = append(errs, validation.ValidateVolumeAttachmentV1(volumeAttachment)...) |
| } |
| return errs |
| } |
| |
| // Canonicalize normalizes the object after validation. |
| func (volumeAttachmentStrategy) Canonicalize(obj runtime.Object) { |
| } |
| |
| func (volumeAttachmentStrategy) AllowCreateOnUpdate() bool { |
| return false |
| } |
| |
| // PrepareForUpdate sets the Status fields which is not allowed to be set by an end user updating a VolumeAttachment |
| func (volumeAttachmentStrategy) PrepareForUpdate(ctx context.Context, obj, old runtime.Object) { |
| var groupVersion schema.GroupVersion |
| |
| if requestInfo, found := genericapirequest.RequestInfoFrom(ctx); found { |
| groupVersion = schema.GroupVersion{Group: requestInfo.APIGroup, Version: requestInfo.APIVersion} |
| } |
| switch groupVersion { |
| case storageapiv1beta1.SchemeGroupVersion: |
| // allow modification of Status via main resource for v1beta1 |
| default: |
| newVolumeAttachment := obj.(*storage.VolumeAttachment) |
| oldVolumeAttachment := old.(*storage.VolumeAttachment) |
| newVolumeAttachment.Status = oldVolumeAttachment.Status |
| // No need to increment Generation because we don't allow updates to spec |
| } |
| } |
| |
| func (volumeAttachmentStrategy) ValidateUpdate(ctx context.Context, obj, old runtime.Object) field.ErrorList { |
| newVolumeAttachmentObj := obj.(*storage.VolumeAttachment) |
| oldVolumeAttachmentObj := old.(*storage.VolumeAttachment) |
| errorList := validation.ValidateVolumeAttachment(newVolumeAttachmentObj) |
| return append(errorList, validation.ValidateVolumeAttachmentUpdate(newVolumeAttachmentObj, oldVolumeAttachmentObj)...) |
| } |
| |
| func (volumeAttachmentStrategy) AllowUnconditionalUpdate() bool { |
| return false |
| } |
| |
| // volumeAttachmentStatusStrategy implements behavior for VolumeAttachmentStatus subresource |
| type volumeAttachmentStatusStrategy struct { |
| volumeAttachmentStrategy |
| } |
| |
| // StatusStrategy is the default logic that applies when creating and updating |
| // VolumeAttachmentStatus subresource via the REST API. |
| var StatusStrategy = volumeAttachmentStatusStrategy{Strategy} |
| |
| // PrepareForUpdate sets the Status fields which is not allowed to be set by an end user updating a VolumeAttachment |
| func (volumeAttachmentStatusStrategy) PrepareForUpdate(ctx context.Context, obj, old runtime.Object) { |
| newVolumeAttachment := obj.(*storage.VolumeAttachment) |
| oldVolumeAttachment := old.(*storage.VolumeAttachment) |
| |
| newVolumeAttachment.Spec = oldVolumeAttachment.Spec |
| |
| oldMeta := oldVolumeAttachment.ObjectMeta |
| newMeta := &newVolumeAttachment.ObjectMeta |
| newMeta.SetDeletionTimestamp(oldMeta.GetDeletionTimestamp()) |
| newMeta.SetGeneration(oldMeta.GetGeneration()) |
| newMeta.SetSelfLink(oldMeta.GetSelfLink()) |
| newMeta.SetLabels(oldMeta.GetLabels()) |
| newMeta.SetAnnotations(oldMeta.GetAnnotations()) |
| newMeta.SetFinalizers(oldMeta.GetFinalizers()) |
| newMeta.SetOwnerReferences(oldMeta.GetOwnerReferences()) |
| } |