Kind Concepts

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Revision as of 23:54, 5 December 2023 by Ovidiu (talk | contribs) (→‎Cluster)
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Internal

Overview

kind is a tool for running local Kubernetes clusters using Docker container "nodes". kind was primarily designed for testing Kubernetes itself, but may be used for local development or CI.

Cluster

A Kubernetes cluster can be created with kind create cluster. The "nodes" are implemented as Docker containers. Upon creation of a default cluster, it will report two nodes, "kind-control-plane" and "kind-worker". The corresponding Docker containers are:

CONTAINER ID   IMAGE              [...]         NAMES
3108457ff1b6   [...]/kind:v1.27.3-3966ac76      kind-worker
c90cb24cc040   [...]kind:v1.27.3-3966ac76       kind-control-plane
2702defb0752   [...]/registry:2                 kind-registry

What is a kind cluster? Where does it live?

"Node" Image

https://kind.sigs.k8s.io/docs/design/node-image

The “node” image is a Docker image for running nested containers, systemd, and Kubernetes components.

Node Provider

Container Provider

KIND_EXPERIMENTAL_PROVIDER