Cluster API (aka CAPI, pronounced “kappy”) is used to build declarative, Kubernetes-style APIs using config files, foundationally similar to other infrastructure-as-code tools. CAPL, a Kubernetes Cluster API implementation for Linode, adds portability, automation capabilities, and ease of cluster creation, configuration, and management. It’s an open source tool that can be installed in existing Kubernetes clusters on Akamai, including the Linode Kubernetes Engine.