Kubernetes networking architecture showing external traffic flow through Ingress controllers to Services and Pods, with CNI plugins (Cilium/Calico) handling pod-to-pod communication, CoreDNS for service discovery, and kube-proxy for iptables/IPVS routing. Includes network policies for microsegmentation. Fork this diagram on Diagrams.so to customize the CNI plugin choice or add a service mesh sidecar pattern for your networking requirements. Source: https://devtron.ai/blog/kubernetes-architecture-the-ultimate-guide/