This post explains various networking aspects in Kubernetes, including CNI, LB controller, and Kube-proxy. It also explores how pod-to-pod and container-to-container communication is achieved within and across nodes. Additionally, it discusses the role of IPTABLES/IPVS in handling service IP address routing, and provides an overview of Calico, IPVS, PURELB, IPIP, and ingress controller.
Table of contents
Deciphering the Kubernetes Networking Maze: Navigating Load-Balance, BGP, IPVS and BeyondBIG picture of everything1- The relation of CNI, LB controller and Kube-proxy2-POD to POD / Container to Container — single node (IP addr based)3- POD to POD / Container to Container — multi node (IP addr based)4- POD to POD / Container to Container — multi node (Service IP addr based)Are you ready for the BIG picture? It’s time.15 Impressions