Kubernetes uses etcd as a database. How etcd works with and without Kubernetes is explained in this article. You will learn why etcd is used by Kuber netes by building (and breaking) a 3-node etcd cluster. The article will also give you some extra tools in your cluster troubleshooting toolbox.
Table of contents
How etcd fits into KubernetesWhy etcd?Enter etcdHow etcd WorksGiving etcd a spinReturning multiple resultsWatching for changesSetting up a multi-node etcd clusterKubernetes and etcdReplacing etcdSummarySort: