How to monitor kube-proxy

The article provides a comprehensive guide on monitoring kube-proxy, a critical component of the Kubernetes control plane responsible for network proxying and load balancing. It explains how kube-proxy operates on each cluster node, facilitating connectivity to pods both inside and outside the cluster. The text details the process of collecting metrics from kube-proxy using Prometheus, highlighting the importance of monitoring key metrics such as latency, request errors, and rule synchronization duration to ensure cluster health. The use of Golden Signals, a monitoring technique, is recommended for gaining insights into service performance. Additionally, the article discusses how to configure Prometheus servers to scrape kube-proxy metrics and integrate them into Sysdig Monitor for efficient and simplified monitoring. This approach allows users to set up alerts and maintain oversight of cluster network health, emphasizing the need for vigilance in monitoring the often-overlooked kube-proxy to prevent network issues.