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Fix k8s memory leak

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Signed-off-by: Emile Vauge <emile@vauge.com>
This commit is contained in:
Emile Vauge 2016-05-19 20:09:01 +02:00
parent 2af1e4b192
commit 0f23581f64
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GPG key ID: D808B4C167352E59
4 changed files with 52 additions and 46 deletions
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28
provider/kubernetes.go
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@ -62,19 +62,20 @@ func (provider *Kubernetes) Provide(configurationChan chan<- types.ConfigMessage
backOff := backoff.NewExponentialBackOff()
pool.Go(func(stop chan bool) {
stopWatch := make(chan bool)
defer close(stopWatch)
operation := func() error {
select {
case <-stop:
return nil
default:
}
for {
stopWatch := make(chan bool, 5)
defer close(stopWatch)
eventsChan, errEventsChan, err := k8sClient.WatchAll(stopWatch)
if err != nil {
log.Errorf("Error watching kubernetes events: %v", err)
return err
timer := time.NewTimer(1 * time.Second)
select {
case <-timer.C:
return err
case <-stop:
return nil
}
}
Watch:
for {
@ -82,14 +83,15 @@ func (provider *Kubernetes) Provide(configurationChan chan<- types.ConfigMessage
case <-stop:
stopWatch <- true
return nil
case err := <-errEventsChan:
if strings.Contains(err.Error(), io.EOF.Error()) {
case err, ok := <-errEventsChan:
stopWatch <- true
if ok && strings.Contains(err.Error(), io.EOF.Error()) {
// edge case, kubernetes long-polling disconnection
break Watch
}
return err
case event := <-eventsChan:
log.Debugf("Received event from kubenetes %+v", event)
log.Debugf("Received event from kubernetes %+v", event)
templateObjects, err := provider.loadIngresses(k8sClient)
if err != nil {
return err
@ -190,13 +192,13 @@ func (provider *Kubernetes) loadIngresses(k8sClient k8s.Client) (*types.Configur
return service.ObjectMeta.Namespace == i.ObjectMeta.Namespace && service.Name == pa.Backend.ServiceName
})
if err != nil {
log.Errorf("Error retrieving services: %v", err)
log.Warnf("Error retrieving services: %v", err)
continue
}
if len(services) == 0 {
// no backends found, delete frontend...
delete(templateObjects.Frontends, r.Host+pa.Path)
log.Errorf("Error retrieving services %s", pa.Backend.ServiceName)
log.Warnf("Error retrieving services %s", pa.Backend.ServiceName)
}
for _, service := range services {
protocol := "http"