Container Network Interface
lastmod 2026-11-10created 2024-06-132 edits
Container Network Interface (CNI) is a plugin specification and library for configuring the network interfaces of Linux containers. When a container runtime creates or deletes a container, it invokes the plugin executable along with a JSON configuration, and the plugin handles the network connection and IP allocation. It is the standard adopted by Kubernetes, and Flannel, Calico, Cilium, and others are implemented as CNI plugins. This page collects related plugins.