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register.go
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/
register.go
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// Copyright 2023 SAP SE or an SAP affiliate company
//
// 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 custodian
import (
"context"
druidv1alpha1 "github.com/gardener/etcd-druid/api/v1alpha1"
druidmapper "github.com/gardener/etcd-druid/pkg/mapper"
druidpredicates "github.com/gardener/etcd-druid/pkg/predicate"
"github.com/gardener/gardener/pkg/controllerutils/mapper"
appsv1 "k8s.io/api/apps/v1"
coordinationv1 "k8s.io/api/coordination/v1"
ctrl "sigs.k8s.io/controller-runtime"
ctrlbuilder "sigs.k8s.io/controller-runtime/pkg/builder"
"sigs.k8s.io/controller-runtime/pkg/controller"
"sigs.k8s.io/controller-runtime/pkg/source"
)
const controllerName = "custodian-controller"
// RegisterWithManager registers the Custodian Controller with the given controller manager.
func (r *Reconciler) RegisterWithManager(ctx context.Context, mgr ctrl.Manager, ignoreOperationAnnotation bool) error {
c, err := ctrl.
NewControllerManagedBy(mgr).
Named(controllerName).
WithOptions(controller.Options{
MaxConcurrentReconciles: r.config.Workers,
}).
For(
&druidv1alpha1.Etcd{},
ctrlbuilder.WithPredicates(druidpredicates.EtcdReconciliationFinished(ignoreOperationAnnotation)),
).
Owns(&coordinationv1.Lease{}).
Build(r)
if err != nil {
return err
}
return c.Watch(
&source.Kind{Type: &appsv1.StatefulSet{}},
mapper.EnqueueRequestsFrom(druidmapper.StatefulSetToEtcd(ctx, mgr.GetClient()), mapper.UpdateWithNew, c.GetLogger()),
druidpredicates.StatefulSetStatusChange(),
)
}