Understanding the Kubernetes Networking Layer

Explore the intricacies of Kubernetes networking in this 34-minute conference talk by Margarita Manterola Rivero from Isovalent. Dive into the essential role of the Container Network Interface (CNI) in cluster communication, understanding its significance for pod connectivity and external service accessibility. Learn about the pluggable nature of Kubernetes networking, comparing the default CNI with alternative options and their respective features. Gain insights into fundamental concepts such as network namespaces, pod-to-pod connectivity, and various Kubernetes service types. Discover advanced topics including network policies, resilient connectivity, L7 traffic management, identity-based security, and observability. Examine the differences between service mesh implementations with and without sidecars, explore multi-cluster options, and understand CNI chaining. Compare popular CNI plugins like Flannel, Weave Net, Calico, and Cilium to make informed decisions for your Kubernetes deployments.