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Warn pods not starting (#493)

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Print warning event related to mizu k8s resources.
In non-daemon print to CLI. In Daemon print to API-Server logs.
This commit is contained in:
Nimrod Gilboa Markevich
2021-11-22 15:30:10 +02:00
committed by GitHub
parent ed7b754eca
commit b1ad2efb96
14 changed files with 285 additions and 17 deletions
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88
cli/cmd/tapRunner.go
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@@ -42,6 +42,8 @@ var state tapState
var apiProvider *apiserver.Provider
func RunMizuTap() {
startTime := time.Now()
mizuApiFilteringOptions, err := getMizuApiFilteringOptions()
apiProvider = apiserver.NewProvider(GetApiServerUrl(), apiserver.DefaultRetries, apiserver.DefaultTimeout)
if err != nil {
@@ -150,6 +152,7 @@ func RunMizuTap() {
go goUtils.HandleExcWrapper(watchApiServerPod, ctx, kubernetesProvider, cancel)
go goUtils.HandleExcWrapper(watchTapperPod, ctx, kubernetesProvider, cancel)
go goUtils.HandleExcWrapper(watchMizuEvents, ctx, kubernetesProvider, cancel, startTime)
// block until exit signal or error
waitForFinish(ctx, cancel)
@@ -727,7 +730,7 @@ func watchTapperPod(ctx context.Context, kubernetesProvider *kubernetes.Provider
continue
}
logger.Log.Errorf("[Error] Error in mizu tapper watch, err: %v", err)
logger.Log.Errorf("[Error] Error in mizu tapper pod watch, err: %v", err)
cancel()
case <-ctx.Done():
@@ -737,6 +740,89 @@ func watchTapperPod(ctx context.Context, kubernetesProvider *kubernetes.Provider
}
}
func watchMizuEvents(ctx context.Context, kubernetesProvider *kubernetes.Provider, cancel context.CancelFunc, startTime time.Time) {
// Round down because k8s CreationTimestamp is given in 1 sec resolution.
startTime = startTime.Truncate(time.Second)
mizuResourceRegex := regexp.MustCompile(fmt.Sprintf("^%s.*", kubernetes.MizuResourcesPrefix))
eventWatchHelper := kubernetes.NewEventWatchHelper(kubernetesProvider, mizuResourceRegex)
added, modified, removed, errorChan := kubernetes.FilteredWatch(ctx, eventWatchHelper, []string{config.Config.MizuResourcesNamespace}, eventWatchHelper)
for {
select {
case wEvent, ok := <-added:
if !ok {
added = nil
continue
}
event, err := wEvent.ToEvent()
if err != nil {
logger.Log.Errorf(uiUtils.Error, fmt.Sprintf("error parsing Mizu resource added event: %+v", err))
cancel()
}
if startTime.After(event.CreationTimestamp.Time) {
continue
}
if event.Type == core.EventTypeWarning {
logger.Log.Warningf(uiUtils.Warning, fmt.Sprintf("Resource %s in state %s - %s", event.Regarding.Name, event.Reason, event.Note))
}
case wEvent, ok := <-removed:
if !ok {
removed = nil
continue
}
event, err := wEvent.ToEvent()
if err != nil {
logger.Log.Errorf(uiUtils.Error, fmt.Sprintf("error parsing Mizu resource removed event: %+v", err))
cancel()
}
if startTime.After(event.CreationTimestamp.Time) {
continue
}
if event.Type == core.EventTypeWarning {
logger.Log.Warningf(uiUtils.Warning, fmt.Sprintf("Resource %s in state %s - %s", event.Regarding.Name, event.Reason, event.Note))
}
case wEvent, ok := <-modified:
if !ok {
modified = nil
continue
}
event, err := wEvent.ToEvent()
if err != nil {
logger.Log.Errorf(uiUtils.Error, fmt.Sprintf("error parsing Mizu resource modified event: %+v", err))
cancel()
}
if startTime.After(event.CreationTimestamp.Time) {
continue
}
if event.Type == core.EventTypeWarning {
logger.Log.Warningf(uiUtils.Warning, fmt.Sprintf("Resource %s in state %s - %s", event.Regarding.Name, event.Reason, event.Note))
}
case err, ok := <-errorChan:
if !ok {
errorChan = nil
continue
}
logger.Log.Errorf("error in watch mizu resource events loop: %+v", err)
cancel()
case <-ctx.Done():
logger.Log.Debugf("watching Mizu resource events loop, ctx done")
return
}
}
}
func getNamespaces(kubernetesProvider *kubernetes.Provider) []string {
if config.Config.Tap.AllNamespaces {
return []string{kubernetes.K8sAllNamespaces}