Kubernetes networking is one of the most critical and complex parts of running containerized workloads in production. This tutorial will walk you through both the theory as well as some hands-on examples and best practices for mastering Kubernetes ne...

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Kubernetes networking enables containerized workloads to communicate through a flat network model where each pod gets a unique IP address without NAT. The tutorial covers core concepts including CNI plugins (Flannel, Calico, Cilium), kube-proxy for service load balancing, CoreDNS for service discovery, and network policies for security. It explains pod-to-pod, pod-to-service, and external-to-service communication patterns, along with practical troubleshooting techniques for common networking issues like unreachable pods and services.

Kubernetes Networking Tutorial: A Guide for Developers