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backupentry.go
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backupentry.go
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// Copyright (c) 2020 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 botanist
import (
"context"
"fmt"
"github.com/gardener/gardener/extensions/pkg/controller/backupentry"
gardencorev1beta1 "github.com/gardener/gardener/pkg/apis/core/v1beta1"
"github.com/gardener/gardener/pkg/features"
gardenletfeatures "github.com/gardener/gardener/pkg/gardenlet/features"
corebackupentry "github.com/gardener/gardener/pkg/operation/botanist/component/backupentry"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/utils/pointer"
"sigs.k8s.io/controller-runtime/pkg/client"
)
// DefaultCoreBackupEntry creates the default deployer for the core.gardener.cloud/v1beta1.BackupEntry resource.
func (b *Botanist) DefaultCoreBackupEntry() corebackupentry.Interface {
ownerRef := metav1.NewControllerRef(b.Shoot.GetInfo(), gardencorev1beta1.SchemeGroupVersion.WithKind("Shoot"))
ownerRef.BlockOwnerDeletion = pointer.Bool(false)
return corebackupentry.New(
b.Logger,
b.K8sGardenClient.Client(),
&corebackupentry.Values{
Namespace: b.Shoot.GetInfo().Namespace,
Name: b.Shoot.BackupEntryName,
ShootPurpose: b.Shoot.GetInfo().Spec.Purpose,
OwnerReference: ownerRef,
SeedName: b.Shoot.GetInfo().Spec.SeedName,
BucketName: string(b.Seed.GetInfo().UID),
},
corebackupentry.DefaultInterval,
corebackupentry.DefaultTimeout,
)
}
// DeployBackupEntry deploys the BackupEntry resource in the Garden cluster and triggers the restore operation in case
// the Shoot is in the restore phase of the control plane migration.
func (b *Botanist) DeployBackupEntry(ctx context.Context) error {
if b.isRestorePhase() {
return b.Shoot.Components.BackupEntry.Restore(ctx, b.GetShootState())
}
return b.Shoot.Components.BackupEntry.Deploy(ctx)
}
// SourceBackupEntry creates a deployer for a core.gardener.cloud/v1beta1.BackupEntry resource which will be used
// as source when copying etcd backups.
func (b *Botanist) SourceBackupEntry() corebackupentry.Interface {
ownerRef := metav1.NewControllerRef(b.Shoot.GetInfo(), gardencorev1beta1.SchemeGroupVersion.WithKind("Shoot"))
ownerRef.BlockOwnerDeletion = pointer.Bool(false)
return corebackupentry.New(
b.Logger,
b.K8sGardenClient.Client(),
&corebackupentry.Values{
Namespace: b.Shoot.GetInfo().Namespace,
Name: fmt.Sprintf("%s-%s", backupentry.SourcePrefix, b.Shoot.BackupEntryName),
ShootPurpose: b.Shoot.GetInfo().Spec.Purpose,
OwnerReference: ownerRef,
SeedName: b.Shoot.GetInfo().Spec.SeedName,
},
corebackupentry.DefaultInterval,
corebackupentry.DefaultTimeout,
)
}
// DeploySourceBackupEntry deploys the source BackupEntry and sets its bucketName to be equal to the bucketName of the shoot's original
// BackupEntry if the source BackupEntry doesn't already exist.
func (b *Botanist) DeploySourceBackupEntry(ctx context.Context) error {
bucketName := b.Shoot.Components.BackupEntry.GetActualBucketName()
if _, err := b.Shoot.Components.SourceBackupEntry.Get(ctx); err == nil {
bucketName = b.Shoot.Components.SourceBackupEntry.GetActualBucketName()
} else if client.IgnoreNotFound(err) != nil {
return err
}
b.Shoot.Components.SourceBackupEntry.SetBucketName(bucketName)
return b.Shoot.Components.SourceBackupEntry.Deploy(ctx)
}
// DestroySourceBackupEntry destroys the source BackupEntry. It returns nil if the CopyEtcdBackupsDuringControlPlaneMigration feature gate
// is disabled or the Seed backup is not enabled or the Shoot is in restore phase.
func (b *Botanist) DestroySourceBackupEntry(ctx context.Context) error {
if !gardenletfeatures.FeatureGate.Enabled(features.CopyEtcdBackupsDuringControlPlaneMigration) ||
b.Seed.GetInfo().Spec.Backup == nil || !b.isRestorePhase() {
return nil
}
return b.Shoot.Components.SourceBackupEntry.Destroy(ctx)
}