4.3. Kubernetes architecture

You can run Kubernetes containers across various machines and environments.

A cluster is a single computational unit consisting of multiple nodes in a cloud environment. A Kubernetes cluster includes a control plane and compute nodes.

The control plane node controls and maintains the state of a cluster. You can run the Kubernetes application by using compute nodes. You can use the Kubernetes namespace to differentiate cluster resources in a cluster. Namespace scoping is applicable for resource objects, such as deployments, services, and pods. You cannot use namespace for cluster-wide resource objects such as storage classes, nodes, and persistent volumes.

그림 4.3. Architecture of Kubernetes