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add.go
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add.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 retry
import (
"k8s.io/utils/ptr"
"sigs.k8s.io/controller-runtime/pkg/builder"
"sigs.k8s.io/controller-runtime/pkg/controller"
"sigs.k8s.io/controller-runtime/pkg/event"
"sigs.k8s.io/controller-runtime/pkg/manager"
"sigs.k8s.io/controller-runtime/pkg/predicate"
gardencorev1beta1 "github.com/gardener/gardener/pkg/apis/core/v1beta1"
v1beta1helper "github.com/gardener/gardener/pkg/apis/core/v1beta1/helper"
)
// ControllerName is the name of this controller.
const ControllerName = "shoot-retry"
// AddToManager adds Reconciler to the given manager.
func (r *Reconciler) AddToManager(mgr manager.Manager) error {
if r.Client == nil {
r.Client = mgr.GetClient()
}
return builder.
ControllerManagedBy(mgr).
Named(ControllerName).
For(&gardencorev1beta1.Shoot{}, builder.WithPredicates(r.ShootPredicate())).
WithOptions(controller.Options{
MaxConcurrentReconciles: ptr.Deref(r.Config.ConcurrentSyncs, 0),
}).
Complete(r)
}
// ShootPredicate reacts only on 'CREATE' and 'UPDATE' Shoot events.
func (r *Reconciler) ShootPredicate() predicate.Predicate {
return predicate.Funcs{
CreateFunc: func(_ event.CreateEvent) bool {
return true
},
UpdateFunc: func(e event.UpdateEvent) bool {
shoot, ok := e.ObjectNew.(*gardencorev1beta1.Shoot)
if !ok {
return false
}
oldShoot, ok := e.ObjectOld.(*gardencorev1beta1.Shoot)
if !ok {
return false
}
return shootFailedDueToRateLimits(shoot) && !isShootFailed(oldShoot)
},
DeleteFunc: func(_ event.DeleteEvent) bool { return false },
GenericFunc: func(_ event.GenericEvent) bool { return false },
}
}
func isShootFailed(shoot *gardencorev1beta1.Shoot) bool {
lastOperation := shoot.Status.LastOperation
return lastOperation != nil &&
lastOperation.State == gardencorev1beta1.LastOperationStateFailed &&
shoot.Generation == shoot.Status.ObservedGeneration
}
func shootFailedDueToRateLimits(shoot *gardencorev1beta1.Shoot) bool {
return isShootFailed(shoot) && v1beta1helper.HasErrorCode(shoot.Status.LastErrors, gardencorev1beta1.ErrorInfraRateLimitsExceeded)
}