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CAPI

Cluster API (CAPI) is a Kubernetes project designed to manage the lifecycle of Kubernetes clusters using a declarative API. It provides a consistent and extensible way to manage infrastructure, cluster provisioning, and cluster upgrades. CAPI uses Kubernetes-style APIs and controllers to manage the creation, configuration, and maintenance of clusters and machines.

Key Concepts of Cluster API:

1.  Cluster: A representation of a Kubernetes cluster. It defines the desired state of the cluster and references infrastructure-specific resources.
2.  Machine: Represents a node in the cluster. It defines the desired state of the node and references infrastructure-specific resources.
3.  Control Plane: Manages the Kubernetes control plane components (e.g., API server, etcd).
4.  MachineDeployment: Represents a set of Machines managed by a Deployment, similar to how a Deployment manages Pods.