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fix OOM issue on real clusters #144

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merged 2 commits into from
Mar 7, 2023
Merged

fix OOM issue on real clusters #144

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751a343
fix OOM issue on real clusters
denis-tingaikin Mar 6, 2023
7c07297
Update main.go
wazsone Mar 7, 2023
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29 changes: 20 additions & 9 deletions main.go
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Original file line number Diff line number Diff line change
Expand Up @@ -160,13 +160,15 @@ func Start(ctx context.Context, conf *Config, c kubernetes.Interface) <-chan str

var eventsCh = make(chan mapipwriter.Event, 64)

cm, err := c.CoreV1().ConfigMaps(conf.Namespace).Get(ctx, conf.FromConfigMap, v1.GetOptions{})
if err == nil {
for _, event := range translateFromConfigmap(watch.Event{
Type: watch.Added,
Object: cm,
}) {
eventsCh <- event
if conf.FromConfigMap != "" {
cm, err := c.CoreV1().ConfigMaps(conf.Namespace).Get(ctx, conf.FromConfigMap, v1.GetOptions{})
if err == nil {
for _, event := range translateFromConfigmap(watch.Event{
Type: watch.Added,
Object: cm,
}) {
eventsCh <- event
}
}
}

Expand Down Expand Up @@ -205,17 +207,26 @@ func Start(ctx context.Context, conf *Config, c kubernetes.Interface) <-chan str
}

func monitorEvents(ctx context.Context, out chan<- mapipwriter.Event, getWatchFn func() watch.Interface, translateFn func(watch.Event) []mapipwriter.Event) {
for ctx.Err() == nil {
w := getWatchFn()
w := getWatchFn()
defer func() {
if w != nil {
w.Stop()
}
}()

for ctx.Err() == nil {
if w == nil {
log.FromContext(ctx).Errorf("cant supply watcher")
time.Sleep(time.Second / 2)
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w = getWatchFn()
continue
}

select {
case e, ok := <-w.ResultChan():
if !ok {
w.Stop()
w = getWatchFn()
continue
}
events := translateFn(e)
Expand Down