Debugging Kubernetes Clusters Without API Server Access

Discover innovative techniques for debugging Kubernetes clusters without relying on the API server in this insightful conference talk. Learn how to troubleshoot cluster issues when you have access to nodes but the API server is down. Explore the limitations of traditional debugging tools like ss/netstat, tcpdump, and BCC tools, which lack Kubernetes-specific knowledge. Gain valuable insights into using Local-Gadget, an eBPF-powered open-source project, to trace container events such as process creation, file access, network activity, and disk activity. Understand how Local-Gadget provides a global view of all containers running on a host and enables the use of essential eBPF tools for debugging standalone containers or Kubernetes applications. Additionally, learn how to leverage the Local-Gadget framework for third-party applications, enhancing your debugging capabilities in Kubernetes environments.