137 lines
2.9 KiB
Go
137 lines
2.9 KiB
Go
/*
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Copyright 2018 The KubeSphere 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 cronjobs
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import (
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"encoding/json"
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"time"
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"github.com/golang/glog"
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"kubesphere.io/kubesphere/pkg/client"
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"kubesphere.io/kubesphere/pkg/constants"
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)
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var etcdClient *client.EtcdClient
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var stopChan = make(chan struct{})
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type dataType interface {
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namespace() string
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}
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type Worker interface {
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workOnce()
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chanRes() chan dataType
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chanStop() chan struct{}
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}
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func registerWorker(workers map[string]Worker, name string) {
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glog.Infof("Register cronjob: %s", name)
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k8sClient := client.NewK8sClient()
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switch name {
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case constants.WorkloadStatusKey:
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worker := workloadWorker{k8sClient: k8sClient, stopChan: stopChan, resChan: make(chan dataType, 10)}
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workers[constants.WorkloadStatusKey] = &worker
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case constants.QuotaKey:
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worker := resourceQuotaWorker{k8sClient: k8sClient, stopChan: stopChan, resChan: make(chan dataType, 10)}
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workers[constants.QuotaKey] = &worker
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}
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}
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func run(worker Worker) {
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defer func() {
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if err := recover(); err != nil {
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glog.Error(err)
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close(worker.chanRes())
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}
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}()
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for {
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select {
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case <-worker.chanStop():
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return
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default:
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break
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}
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worker.workOnce()
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time.Sleep(time.Duration(constants.UpdateCircle) * time.Second)
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}
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}
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func startWorks(workers map[string]Worker) {
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for wokername, woker := range workers {
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glog.Infof("cronjob %s start to work", wokername)
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go run(woker)
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}
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}
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func receiveResourceStatus(workers map[string]Worker) {
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defer func() {
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close(stopChan)
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}()
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for {
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for name, worker := range workers {
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select {
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case res, ok := <-worker.chanRes():
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if !ok {
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glog.Errorf("cronjob:%s have stopped", name)
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registerWorker(workers, name)
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run(workers[name])
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} else {
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value, err := json.Marshal(res)
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if err != nil {
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glog.Error(err)
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continue
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}
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key := constants.Root + "/" + name + "/" + res.namespace()
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err = etcdClient.Put(key, string(value))
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if err != nil {
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glog.Error(err)
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}
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}
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default:
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continue
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}
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}
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}
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}
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func Run() {
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glog.Info("Begin to run cronjob")
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var err error
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etcdClient, err = client.NewEtcdClient()
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if err != nil {
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glog.Error(err)
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}
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defer etcdClient.Close()
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workers := make(map[string]Worker)
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workerList := []string{constants.QuotaKey, constants.WorkloadStatusKey}
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for _, name := range workerList {
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registerWorker(workers, name)
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}
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startWorks(workers)
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receiveResourceStatus(workers)
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}
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