forked from gardener/gardener
/
strategy.go
117 lines (93 loc) · 4.49 KB
/
strategy.go
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// Copyright (c) 2018 SAP SE or an SAP affiliate company. All rights reserved. This file is licensed under the Apache Software License, v. 2 except as noted otherwise in the LICENSE file
//
// 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 backupinfrastructure
import (
"context"
apiequality "k8s.io/apimachinery/pkg/api/equality"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/util/sets"
"k8s.io/apimachinery/pkg/util/validation/field"
"k8s.io/apiserver/pkg/storage/names"
"github.com/gardener/gardener/pkg/api"
"github.com/gardener/gardener/pkg/apis/garden"
gardenv1beta1 "github.com/gardener/gardener/pkg/apis/garden/v1beta1"
"github.com/gardener/gardener/pkg/apis/garden/validation"
)
type backupInfrastructureStrategy struct {
runtime.ObjectTyper
names.NameGenerator
}
// Strategy defines the storage strategy for BackupInfrastructures.
var Strategy = backupInfrastructureStrategy{api.Scheme, names.SimpleNameGenerator}
func (backupInfrastructureStrategy) NamespaceScoped() bool {
return true
}
func (backupInfrastructureStrategy) PrepareForCreate(ctx context.Context, obj runtime.Object) {
backupInfrastructure := obj.(*garden.BackupInfrastructure)
backupInfrastructure.Generation = 1
backupInfrastructure.Status = garden.BackupInfrastructureStatus{}
finalizers := sets.NewString(backupInfrastructure.Finalizers...)
if !finalizers.Has(gardenv1beta1.GardenerName) {
finalizers.Insert(gardenv1beta1.GardenerName)
}
backupInfrastructure.Finalizers = finalizers.UnsortedList()
}
func (backupInfrastructureStrategy) PrepareForUpdate(ctx context.Context, obj, old runtime.Object) {
newBackupInfrastructure := obj.(*garden.BackupInfrastructure)
oldBackupInfrastructure := old.(*garden.BackupInfrastructure)
newBackupInfrastructure.Status = oldBackupInfrastructure.Status
if mustIncreaseGeneration(oldBackupInfrastructure, newBackupInfrastructure) {
newBackupInfrastructure.Generation = oldBackupInfrastructure.Generation + 1
}
}
func mustIncreaseGeneration(oldBackupInfrastructure, newBackupInfrastructure *garden.BackupInfrastructure) bool {
// The BackupInfrastructure specification changes.
if !apiequality.Semantic.DeepEqual(oldBackupInfrastructure.Spec, newBackupInfrastructure.Spec) {
return true
}
// The deletion timestamp was set.
if oldBackupInfrastructure.DeletionTimestamp == nil && newBackupInfrastructure.DeletionTimestamp != nil {
return true
}
return false
}
func (backupInfrastructureStrategy) Validate(ctx context.Context, obj runtime.Object) field.ErrorList {
backupInfrastructure := obj.(*garden.BackupInfrastructure)
return validation.ValidateBackupInfrastructure(backupInfrastructure)
}
func (backupInfrastructureStrategy) Canonicalize(obj runtime.Object) {
}
func (backupInfrastructureStrategy) AllowCreateOnUpdate() bool {
return false
}
func (backupInfrastructureStrategy) ValidateUpdate(ctx context.Context, newObj, oldObj runtime.Object) field.ErrorList {
oldBackupInfrastructure, newBackupInfrastructure := oldObj.(*garden.BackupInfrastructure), newObj.(*garden.BackupInfrastructure)
return validation.ValidateBackupInfrastructureUpdate(newBackupInfrastructure, oldBackupInfrastructure)
}
func (backupInfrastructureStrategy) AllowUnconditionalUpdate() bool {
return false
}
type backupInfrastructureStatusStrategy struct {
backupInfrastructureStrategy
}
// StatusStrategy defines the storage strategy for the status subresource of BackupInfrastructures.
var StatusStrategy = backupInfrastructureStatusStrategy{Strategy}
func (backupInfrastructureStatusStrategy) PrepareForUpdate(ctx context.Context, obj, old runtime.Object) {
newBackupInfrastructure := obj.(*garden.BackupInfrastructure)
oldBackupInfrastructure := old.(*garden.BackupInfrastructure)
newBackupInfrastructure.Spec = oldBackupInfrastructure.Spec
}
func (backupInfrastructureStatusStrategy) ValidateUpdate(ctx context.Context, obj, old runtime.Object) field.ErrorList {
return validation.ValidateBackupInfrastructureStatusUpdate(obj.(*garden.BackupInfrastructure), old.(*garden.BackupInfrastructure))
}