2019-01-12 04:58:27 +00:00
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/*
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Copyright 2017 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package controllers
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import (
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"fmt"
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2020-08-10 17:43:49 +00:00
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"k8s.io/klog/v2"
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2019-01-12 04:58:27 +00:00
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utilruntime "k8s.io/apimachinery/pkg/util/runtime"
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"k8s.io/client-go/tools/cache"
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)
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// WaitForCacheSync is a wrapper around cache.WaitForCacheSync that generates log messages
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// indicating that the controller identified by controllerName is waiting for syncs, followed by
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// either a successful or failed sync.
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func WaitForCacheSync(controllerName string, stopCh <-chan struct{}, cacheSyncs ...cache.InformerSynced) bool {
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klog.Infof("Waiting for caches to sync for %s controller", controllerName)
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if !cache.WaitForCacheSync(stopCh, cacheSyncs...) {
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utilruntime.HandleError(fmt.Errorf("Unable to sync caches for %s controller", controllerName))
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return false
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}
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klog.Infof("Caches are synced for %s controller", controllerName)
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return true
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}
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