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managedseed_controller.go
72 lines (61 loc) · 2.34 KB
/
managedseed_controller.go
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// Copyright (c) 2021 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 managedseed
import (
"k8s.io/client-go/tools/cache"
seedmanagementv1alpha1 "github.com/gardener/gardener/pkg/apis/seedmanagement/v1alpha1"
"github.com/gardener/gardener/pkg/utils"
)
func (c *Controller) managedSeedAdd(obj interface{}) {
managedSeed, ok := obj.(*seedmanagementv1alpha1.ManagedSeed)
if !ok {
return
}
key, err := cache.MetaNamespaceKeyFunc(obj)
if err != nil {
return
}
if managedSeed.Generation != managedSeed.Status.ObservedGeneration || managedSeed.DeletionTimestamp != nil {
c.logger.Debugf("Added ManagedSeed %s without delay to the queue", key)
c.managedSeedQueue.Add(key)
} else {
// Spread reconciliation of managed seeds (including gardenlet updates/rollouts) across the configured sync jitter
// period to avoid overloading the gardener-apiserver if all gardenlets in all managed seeds are (re)starting
// roughly at the same time
duration := utils.RandomDurationWithMetaDuration(c.config.Controllers.ManagedSeed.SyncJitterPeriod)
c.logger.Infof("Added ManagedSeed %s with delay %s to the queue", key, duration)
c.managedSeedQueue.AddAfter(key, duration)
}
}
func (c *Controller) managedSeedUpdate(_, newObj interface{}) {
managedSeed, ok := newObj.(*seedmanagementv1alpha1.ManagedSeed)
if !ok {
return
}
if managedSeed.Generation == managedSeed.Status.ObservedGeneration {
return
}
c.managedSeedAdd(newObj)
}
func (c *Controller) managedSeedDelete(obj interface{}) {
_, ok := obj.(*seedmanagementv1alpha1.ManagedSeed)
if !ok {
return
}
key, err := cache.DeletionHandlingMetaNamespaceKeyFunc(obj)
if err != nil {
return
}
c.managedSeedQueue.Add(key)
}