Container Networking Interface (CNI)

The CNI project is a network interface created by multiple companies and projects; including CoreOS, Red Hat OpenShift, Apache Mesos, Cloud Foundry, Kubernetes, Kurma and rkt. First proposed by CoreOS to define a common interface between the network plugins and container execution, CNI is designed to be a minimal specification concerned only with the network connectivity of containers and removing allocated resources when the container is deleted.