fix: don't assume kube_cluster_name tag, allow users to set via event…

… metadata

internal/notifier/datadog.go

@@ -147,15 +147,6 @@ func (d *DataDog) toDataDogTags(event *eventv1.Event) []string {
 		fmt.Sprintf("kube_namespace:%s", event.InvolvedObject.Namespace),
 	}
 
-	// set the cluster name to the value of the summary field if it exists
-	// otherwise, set it to the value of the channel
-	if v, ok := event.Metadata["summary"]; ok {
-		tags = append(tags, fmt.Sprintf("kube_cluster_name:%s", v))
-		delete(event.Metadata, "summary")
-	} else {
-		tags = append(tags, fmt.Sprintf("kube_cluster_name:%s", d.env))
-	}
-
 	// add extra tags from event metadata
 	for k, v := range event.Metadata {
 		tags = append(tags, fmt.Sprintf("%s:%s", k, v))