Goldpinger
Goldpinger is an open-source Kubernetes monitoring aid. Goldpinger makes calls between its instances (Kubernetes nodes) to monitor your networking. It runs as a DaemonSet on Kubernetes and produces Prometheus metrics that can be scraped, visualized, and alerted on.
Goldpinger is included to assist in troubleshooting and visualization at the Kubernetes networking layer. It rapidly detects connectivity and network performance issues and slowness issues.