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124 lines
3.7 KiB
Go
124 lines
3.7 KiB
Go
/*
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Copyright 2024 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 deviceclass
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import (
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"context"
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apiequality "k8s.io/apimachinery/pkg/api/equality"
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"k8s.io/apimachinery/pkg/api/operation"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/util/validation/field"
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"k8s.io/apiserver/pkg/registry/rest"
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"k8s.io/apiserver/pkg/storage/names"
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utilfeature "k8s.io/apiserver/pkg/util/feature"
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"k8s.io/kubernetes/pkg/api/legacyscheme"
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"k8s.io/kubernetes/pkg/apis/resource"
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"k8s.io/kubernetes/pkg/apis/resource/validation"
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"k8s.io/kubernetes/pkg/features"
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)
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// deviceClassStrategy implements behavior for DeviceClass objects
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type deviceClassStrategy struct {
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runtime.ObjectTyper
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names.NameGenerator
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}
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var Strategy = deviceClassStrategy{legacyscheme.Scheme, names.SimpleNameGenerator}
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func (deviceClassStrategy) NamespaceScoped() bool {
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return false
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}
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func (deviceClassStrategy) PrepareForCreate(ctx context.Context, obj runtime.Object) {
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class := obj.(*resource.DeviceClass)
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class.Generation = 1
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dropDisabledFields(class, nil)
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}
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func (deviceClassStrategy) Validate(ctx context.Context, obj runtime.Object) field.ErrorList {
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deviceClass := obj.(*resource.DeviceClass)
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errorList := validation.ValidateDeviceClass(deviceClass)
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return rest.ValidateDeclarativelyWithMigrationChecks(ctx, legacyscheme.Scheme, deviceClass, nil, errorList, operation.Create)
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}
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func (deviceClassStrategy) WarningsOnCreate(ctx context.Context, obj runtime.Object) []string {
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return nil
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}
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func (deviceClassStrategy) Canonicalize(obj runtime.Object) {
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}
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func (deviceClassStrategy) AllowCreateOnUpdate() bool {
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return false
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}
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func (deviceClassStrategy) PrepareForUpdate(ctx context.Context, obj, old runtime.Object) {
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class := obj.(*resource.DeviceClass)
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oldClass := old.(*resource.DeviceClass)
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dropDisabledFields(class, oldClass)
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// Any changes to the spec increment the generation number.
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if !apiequality.Semantic.DeepEqual(oldClass.Spec, class.Spec) {
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class.Generation = oldClass.Generation + 1
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}
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}
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func (deviceClassStrategy) ValidateUpdate(ctx context.Context, obj, old runtime.Object) field.ErrorList {
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newClass := obj.(*resource.DeviceClass)
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oldClass := old.(*resource.DeviceClass)
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errorList := validation.ValidateDeviceClassUpdate(newClass, oldClass)
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return rest.ValidateDeclarativelyWithMigrationChecks(ctx, legacyscheme.Scheme, newClass, oldClass, errorList, operation.Update)
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}
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func (deviceClassStrategy) WarningsOnUpdate(ctx context.Context, obj, old runtime.Object) []string {
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return nil
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}
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func (deviceClassStrategy) AllowUnconditionalUpdate() bool {
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return true
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}
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// dropDisabledFields removes fields which are covered by a feature gate.
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func dropDisabledFields(newClass, oldClass *resource.DeviceClass) {
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dropDisabledDRAExtendedResourceFields(newClass, oldClass)
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}
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func dropDisabledDRAExtendedResourceFields(newClass, oldClass *resource.DeviceClass) {
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if utilfeature.DefaultFeatureGate.Enabled(features.DRAExtendedResource) {
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return
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}
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if draExtendedResourceFeatureInUse(oldClass) {
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return
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}
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newClass.Spec.ExtendedResourceName = nil
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}
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func draExtendedResourceFeatureInUse(class *resource.DeviceClass) bool {
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if class == nil {
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return false
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}
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if class.Spec.ExtendedResourceName != nil {
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return true
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}
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return false
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}
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