# Name of project: Container Networking Interface # Description The CNI (Container Network Interface) project consists of a specification and libraries for writing plugins to configure network interfaces in Linux containers, along with a number of supported plugins. CNI concerns itself only with network connectivity of containers and removing allocated resources when the container is deleted. Because of this focus, CNI has a wide range of support and the specification is simple to implement. CNI consists of 3 separate comonents: * CNI Specification: defines an straightforward API between runtimes and network plugins for container network setup/teardown. No more, no less. * Plugins: provide network setup for a variety of use-cases and serve as reference examples of plugins conforming to the CNI specification * Library: provide a Go implementation of the CNI specification that runtimes can use to more easily consume CNI NOTE: CNI Specification is independently versioned from the CNI library and plugins in the repository (e.g. the versions of releases). The plugins are being pulled out into a separate repository **Sponsor/Advisor from TOC:** Ken Owens **preferred maturity level:** Incubating **License:** Apache License v2.0 **Source control repositories:** https://github.com/containernetworking/cni **external dependencies:** None **Initial Committers:** https://github.com/containernetworking/cni/graphs/contributors **infrastructure requests (CI / CNCF Cluster):** None **communication channels (slack, irc, mailing lists):** * Email: cni-dev * IRC: #containernetworking channel on freenode.org * Slack: containernetworking.slack.com **issue tracker (GitHub by default):** Github - https://github.com/containernetworking/cni/issues **website (current version will move to project.cncf.io):** https://github.com/containernetworking **release methodology and mechanics:** *TBD* **social media accounts** **community size and any existing sponsorship** * 56 Contributors * 591 Stars * 17 releases ## Container runtimes rkt - container engine Kurma - container runtime Kubernetes - a system to simplify container operations Cloud Foundry - a platform for cloud applications Mesos - a distributed systems kernel ## 3rd party plugins Project Calico - a layer 3 virtual network Weave - a multi-host Docker network Contiv Networking - policy networking for various use cases SR-IOV Cilium - BPF & XDP for containers Infoblox - enterprise IP address management for containers Multus - a Multi plugin Romana - Layer 3 CNI plugin supporting network policy for Kubernetes CNI-Genie - generic CNI network plugin