| /* |
| 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 persistentvolume |
| |
| import ( |
| "context" |
| "fmt" |
| |
| "k8s.io/apimachinery/pkg/fields" |
| "k8s.io/apimachinery/pkg/labels" |
| "k8s.io/apimachinery/pkg/runtime" |
| "k8s.io/apimachinery/pkg/util/validation/field" |
| "k8s.io/apiserver/pkg/registry/generic" |
| "k8s.io/apiserver/pkg/storage" |
| "k8s.io/apiserver/pkg/storage/names" |
| "k8s.io/kubernetes/pkg/api/legacyscheme" |
| pvutil "k8s.io/kubernetes/pkg/api/persistentvolume" |
| api "k8s.io/kubernetes/pkg/apis/core" |
| "k8s.io/kubernetes/pkg/apis/core/validation" |
| volumevalidation "k8s.io/kubernetes/pkg/volume/validation" |
| ) |
| |
| // persistentvolumeStrategy implements behavior for PersistentVolume objects |
| type persistentvolumeStrategy struct { |
| runtime.ObjectTyper |
| names.NameGenerator |
| } |
| |
| // Strategy is the default logic that applies when creating and updating PersistentVolume |
| // objects via the REST API. |
| var Strategy = persistentvolumeStrategy{legacyscheme.Scheme, names.SimpleNameGenerator} |
| |
| func (persistentvolumeStrategy) NamespaceScoped() bool { |
| return false |
| } |
| |
| // ResetBeforeCreate clears the Status field which is not allowed to be set by end users on creation. |
| func (persistentvolumeStrategy) PrepareForCreate(ctx context.Context, obj runtime.Object) { |
| pv := obj.(*api.PersistentVolume) |
| pv.Status = api.PersistentVolumeStatus{} |
| |
| pvutil.DropDisabledFields(&pv.Spec, nil) |
| } |
| |
| func (persistentvolumeStrategy) Validate(ctx context.Context, obj runtime.Object) field.ErrorList { |
| persistentvolume := obj.(*api.PersistentVolume) |
| errorList := validation.ValidatePersistentVolume(persistentvolume) |
| return append(errorList, volumevalidation.ValidatePersistentVolume(persistentvolume)...) |
| } |
| |
| // Canonicalize normalizes the object after validation. |
| func (persistentvolumeStrategy) Canonicalize(obj runtime.Object) { |
| } |
| |
| func (persistentvolumeStrategy) AllowCreateOnUpdate() bool { |
| return false |
| } |
| |
| // PrepareForUpdate sets the Status fields which is not allowed to be set by an end user updating a PV |
| func (persistentvolumeStrategy) PrepareForUpdate(ctx context.Context, obj, old runtime.Object) { |
| newPv := obj.(*api.PersistentVolume) |
| oldPv := old.(*api.PersistentVolume) |
| newPv.Status = oldPv.Status |
| |
| pvutil.DropDisabledFields(&newPv.Spec, &oldPv.Spec) |
| } |
| |
| func (persistentvolumeStrategy) ValidateUpdate(ctx context.Context, obj, old runtime.Object) field.ErrorList { |
| newPv := obj.(*api.PersistentVolume) |
| errorList := validation.ValidatePersistentVolume(newPv) |
| errorList = append(errorList, volumevalidation.ValidatePersistentVolume(newPv)...) |
| return append(errorList, validation.ValidatePersistentVolumeUpdate(newPv, old.(*api.PersistentVolume))...) |
| } |
| |
| func (persistentvolumeStrategy) AllowUnconditionalUpdate() bool { |
| return true |
| } |
| |
| type persistentvolumeStatusStrategy struct { |
| persistentvolumeStrategy |
| } |
| |
| var StatusStrategy = persistentvolumeStatusStrategy{Strategy} |
| |
| // PrepareForUpdate sets the Spec field which is not allowed to be changed when updating a PV's Status |
| func (persistentvolumeStatusStrategy) PrepareForUpdate(ctx context.Context, obj, old runtime.Object) { |
| newPv := obj.(*api.PersistentVolume) |
| oldPv := old.(*api.PersistentVolume) |
| newPv.Spec = oldPv.Spec |
| } |
| |
| func (persistentvolumeStatusStrategy) ValidateUpdate(ctx context.Context, obj, old runtime.Object) field.ErrorList { |
| return validation.ValidatePersistentVolumeStatusUpdate(obj.(*api.PersistentVolume), old.(*api.PersistentVolume)) |
| } |
| |
| // GetAttrs returns labels and fields of a given object for filtering purposes. |
| func GetAttrs(obj runtime.Object) (labels.Set, fields.Set, bool, error) { |
| persistentvolumeObj, ok := obj.(*api.PersistentVolume) |
| if !ok { |
| return nil, nil, false, fmt.Errorf("not a persistentvolume") |
| } |
| return labels.Set(persistentvolumeObj.Labels), PersistentVolumeToSelectableFields(persistentvolumeObj), persistentvolumeObj.Initializers != nil, nil |
| } |
| |
| // MatchPersistentVolume returns a generic matcher for a given label and field selector. |
| func MatchPersistentVolumes(label labels.Selector, field fields.Selector) storage.SelectionPredicate { |
| return storage.SelectionPredicate{ |
| Label: label, |
| Field: field, |
| GetAttrs: GetAttrs, |
| } |
| } |
| |
| // PersistentVolumeToSelectableFields returns a field set that represents the object |
| func PersistentVolumeToSelectableFields(persistentvolume *api.PersistentVolume) fields.Set { |
| objectMetaFieldsSet := generic.ObjectMetaFieldsSet(&persistentvolume.ObjectMeta, false) |
| specificFieldsSet := fields.Set{ |
| // This is a bug, but we need to support it for backward compatibility. |
| "name": persistentvolume.Name, |
| } |
| return generic.MergeFieldsSets(objectMetaFieldsSet, specificFieldsSet) |
| } |