Due to upgrade issues with the Envoy gateway and the offline installation environments, upgrading to MKE 4k 4.1.3 is not recommended. These issues are fixed in the 4.1.4 release. For version 4.1.3, Mirantis only supports fresh installations.

Container Network Interfaces (CNI)

MKE 4k 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 4k with a wide range of networking functionalities, including IP address management, routing, NAT, and network isolation.

CNI plugins that MKE 4k currently supports include Calico OSS