Troubleshooting Guide: Amazon EKS Networking

Kubernetes has become a leading tool for container orchestration, and Amazon EKS (Elastic Kubernetes Service) simplifies its deployment by offering a managed service that abstracts much of the complexity involved in managing Kubernetes clusters, particularly in cloud environments. Networking issues are a common challenge for administrators, with specific considerations required for configuring Virtual Private Clouds (VPCs) and subnets, such as ensuring sufficient IP addresses and DNS support. The article discusses various networking concerns, including IP-based naming versus resource-based naming, and the importance of adhering to AWS's guidelines to avoid issues such as node creation failures, overlapping networks, and TLS handshake timeouts. These issues highlight the need for proper configuration and understanding of Amazon EKS architecture, emphasizing the importance of following AWS's official recommendations and documentation to ensure a secure and efficient Kubernetes deployment.