Container Network Interfaces (CNI)

MKE 4 supports Container Network Interface (CNI) plugins to enable the networking functionalities needed for container communication and management within a cluster. These plugins are responsible for setting up, modifying, and tearing down network interfaces when containers are created or removed. They provide MKE 4 with a wide range of networking functionalities, including IP address management, routing, NAT, and network isolation.

CNI plugins that MKE 4 currently supports include Calico OSS

Important

MKE 4 supports upgrades from MKE 3 clusters that are using Calico OSS or an unmanaged CNI. For more information, refer to Upgrade from MKE 3.7, 3.8, or 3.9.