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reconciler.go
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reconciler.go
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// SPDX-FileCopyrightText: 2024 SAP SE or an SAP affiliate company and Gardener contributors
//
// SPDX-License-Identifier: Apache-2.0
package event
import (
"context"
"fmt"
corev1 "k8s.io/api/core/v1"
apierrors "k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/utils/clock"
"sigs.k8s.io/controller-runtime/pkg/client"
logf "sigs.k8s.io/controller-runtime/pkg/log"
"sigs.k8s.io/controller-runtime/pkg/reconcile"
gardencorev1beta1 "github.com/gardener/gardener/pkg/apis/core/v1beta1"
"github.com/gardener/gardener/pkg/controllermanager/apis/config"
"github.com/gardener/gardener/pkg/controllerutils"
)
// Reconciler reconciles Event.
type Reconciler struct {
Client client.Client
Config config.EventControllerConfiguration
Clock clock.Clock
}
// Reconcile performs the main reconciliation logic.
func (r *Reconciler) Reconcile(ctx context.Context, req reconcile.Request) (reconcile.Result, error) {
log := logf.FromContext(ctx)
ctx, cancel := controllerutils.GetMainReconciliationContext(ctx, controllerutils.DefaultReconciliationTimeout)
defer cancel()
event := &corev1.Event{}
if err := r.Client.Get(ctx, req.NamespacedName, event); err != nil {
if apierrors.IsNotFound(err) {
log.V(1).Info("Object is gone, stop reconciling")
return reconcile.Result{}, nil
}
return reconcile.Result{}, fmt.Errorf("error retrieving object from store: %w", err)
}
if isShootEvent(event) {
return reconcile.Result{}, nil
}
deleteAt := event.LastTimestamp.Add(r.Config.TTLNonShootEvents.Duration)
timeUntilDeletion := deleteAt.Sub(r.Clock.Now())
if timeUntilDeletion > 0 {
return reconcile.Result{RequeueAfter: timeUntilDeletion}, nil
}
return reconcile.Result{}, r.Client.Delete(ctx, event)
}
func isShootEvent(event *corev1.Event) bool {
if gv, err := schema.ParseGroupVersion(event.InvolvedObject.APIVersion); err != nil || gv.Group != gardencorev1beta1.GroupName {
return false
}
if event.InvolvedObject.Kind == "Shoot" {
return true
}
return false
}