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add.go
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add.go
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// Copyright (c) 2022 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 backupbucket
import (
"context"
"github.com/go-logr/logr"
"k8s.io/apimachinery/pkg/types"
"k8s.io/utils/clock"
"k8s.io/utils/pointer"
"sigs.k8s.io/controller-runtime/pkg/builder"
"sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/cluster"
"sigs.k8s.io/controller-runtime/pkg/controller"
"sigs.k8s.io/controller-runtime/pkg/manager"
"sigs.k8s.io/controller-runtime/pkg/predicate"
"sigs.k8s.io/controller-runtime/pkg/reconcile"
"sigs.k8s.io/controller-runtime/pkg/source"
gardencorev1beta1 "github.com/gardener/gardener/pkg/apis/core/v1beta1"
v1beta1constants "github.com/gardener/gardener/pkg/apis/core/v1beta1/constants"
extensionsv1alpha1 "github.com/gardener/gardener/pkg/apis/extensions/v1alpha1"
"github.com/gardener/gardener/pkg/controllerutils"
"github.com/gardener/gardener/pkg/controllerutils/mapper"
predicateutils "github.com/gardener/gardener/pkg/controllerutils/predicate"
)
// ControllerName is the name of this controller.
const ControllerName = "backupbucket"
// AddToManager adds Reconciler to the given manager.
func (r *Reconciler) AddToManager(mgr manager.Manager, gardenCluster cluster.Cluster, seedCluster cluster.Cluster) error {
if r.GardenClient == nil {
r.GardenClient = gardenCluster.GetClient()
}
if r.SeedClient == nil {
r.SeedClient = seedCluster.GetClient()
}
if r.Clock == nil {
r.Clock = clock.RealClock{}
}
if r.Recorder == nil {
r.Recorder = gardenCluster.GetEventRecorderFor(ControllerName + "-controller")
}
if r.GardenNamespace == "" {
r.GardenNamespace = v1beta1constants.GardenNamespace
}
c, err := builder.
ControllerManagedBy(mgr).
Named(ControllerName).
WithOptions(controller.Options{
MaxConcurrentReconciles: pointer.IntDeref(r.Config.ConcurrentSyncs, 0),
RateLimiter: r.RateLimiter,
}).
Build(r)
if err != nil {
return err
}
if err := c.Watch(
source.NewKindWithCache(&gardencorev1beta1.BackupBucket{}, gardenCluster.GetCache()),
controllerutils.EnqueueCreateEventsOncePer24hDuration(r.Clock),
&predicate.GenerationChangedPredicate{},
r.SeedNamePredicate(),
); err != nil {
return err
}
return c.Watch(
source.NewKindWithCache(&extensionsv1alpha1.BackupBucket{}, seedCluster.GetCache()),
mapper.EnqueueRequestsFrom(mapper.MapFunc(r.MapExtensionBackupBucketToCoreBackupBucket), mapper.UpdateWithNew, c.GetLogger()),
predicateutils.ExtensionStatusChanged(),
)
}
// SeedNamePredicate returns a predicate which returns true when the object belongs to this seed.
func (r *Reconciler) SeedNamePredicate() predicate.Predicate {
return predicate.NewPredicateFuncs(func(obj client.Object) bool {
backupBucket, ok := obj.(*gardencorev1beta1.BackupBucket)
if !ok {
return false
}
return pointer.StringDeref(backupBucket.Spec.SeedName, "") == r.SeedName
})
}
// MapExtensionBackupBucketToCoreBackupBucket is a mapper.MapFunc for mapping a extensions.gardener.cloud/v1alpha1.BackupBucket to the owning
// core.gardener.cloud/v1beta1.BackupBucket.
func (r *Reconciler) MapExtensionBackupBucketToCoreBackupBucket(_ context.Context, _ logr.Logger, _ client.Reader, obj client.Object) []reconcile.Request {
return []reconcile.Request{{NamespacedName: types.NamespacedName{Name: obj.GetName()}}}
}