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Log abnormal events for resources we are waiting on (migtools#1052)
* Log abnormal events for things we are waiting on
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,87 @@ | ||
| package event | ||
|
|
||
| import ( | ||
| "context" | ||
| "path" | ||
| "strings" | ||
|
|
||
| "github.com/go-logr/logr" | ||
| corev1 "k8s.io/api/core/v1" | ||
| "k8s.io/apimachinery/pkg/types" | ||
| "sigs.k8s.io/controller-runtime/pkg/client" | ||
| k8sclient "sigs.k8s.io/controller-runtime/pkg/client" | ||
| ) | ||
|
|
||
| // GetAbnormalEventsForResource gets unique events of non-normal type for | ||
| // a namespaced resource. Useful for logging the most relevant events | ||
| // related to a resource we're waiting on. | ||
| func GetAbnormalEventsForResource(client client.Client, | ||
| nsName types.NamespacedName, resourceKind string) ([]corev1.Event, error) { | ||
| uniqueEventMap := make(map[string]corev1.Event) | ||
|
|
||
| eList := corev1.EventList{} | ||
| options := k8sclient.InNamespace(nsName.Namespace) | ||
| err := client.List(context.TODO(), options, &eList) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| for _, event := range eList.Items { | ||
| // Only want events for the kind indicated | ||
| if strings.ToLower(event.InvolvedObject.Kind) != strings.ToLower(resourceKind) { | ||
| continue | ||
| } | ||
| // Only get events for the resource.name we're interested in | ||
| if event.InvolvedObject.Name != nsName.Name { | ||
| continue | ||
| } | ||
| // Only get abnormal events | ||
| if event.Type == "Normal" { | ||
| continue | ||
| } | ||
| // Check if same event reason has already been seen | ||
| eventFromMap, ok := uniqueEventMap[event.Reason] | ||
| if !ok { | ||
| uniqueEventMap[event.Reason] = event | ||
| continue | ||
| } | ||
| // Found event in map. Overwrite it if this one is newer. | ||
| if eventFromMap.ObjectMeta.CreationTimestamp.Time. | ||
| Before(event.ObjectMeta.CreationTimestamp.Time) { | ||
| uniqueEventMap[event.Reason] = event | ||
| } | ||
| } | ||
| // Turn map into slice of events | ||
| matchingEvents := []corev1.Event{} | ||
| for _, event := range uniqueEventMap { | ||
| matchingEvents = append(matchingEvents, event) | ||
| } | ||
|
|
||
| return matchingEvents, err | ||
| } | ||
|
|
||
| // LogAbnormalEventsForResource logs unique events of non-normal type for | ||
| // a namespaced resource. Useful for logging the most relevant events | ||
| // related to a resource we're waiting on. | ||
| // The message logged will match what is provided in 'message' | ||
| func LogAbnormalEventsForResource( | ||
| client client.Client, log logr.Logger, message string, nsName types.NamespacedName, resourceKind string) { | ||
|
|
||
| relevantEvents, err := GetAbnormalEventsForResource(client, | ||
| types.NamespacedName{Name: nsName.Name, Namespace: nsName.Namespace}, resourceKind) | ||
| if err != nil { | ||
| log.Info("Error getting events", | ||
| "kind", resourceKind, | ||
| "resource", path.Join(nsName.Namespace, nsName.Name), | ||
| "error", err) | ||
| return | ||
| } | ||
| for _, rEvent := range relevantEvents { | ||
| log.Info(message, | ||
| resourceKind, path.Join(nsName.Namespace, nsName.Name), | ||
| "eventType", rEvent.Type, | ||
| "eventReason", rEvent.Reason, | ||
| "eventMessage", rEvent.Message, | ||
| "eventFirstTimestamp", rEvent.FirstTimestamp) | ||
| } | ||
|
|
||
| } |