Monitoring Inter-Pod Traffic at the AZ Level with Retina (an eBPF based tool)

The post provides a comprehensive guide on analyzing inter-pod traffic in Kubernetes, with a focus on cross-AZ communication to reduce AWS costs. It leverages eBPF technology using tools like Retina, Prometheus, and Grafana. The article covers the setup of a sample environment, configuration of monitoring tools, and how to capture and analyze traffic metrics to optimize network performance across Kubernetes clusters.