etcd

Distributed & reliable key value store containing all Kubernetes cluster data

etcd corresponds to a distributed & reliable key value store containing all cluster data.

All objects available in the Kubernetes cluster are described in this database.

etcd acts as the reference for the cluster state. If the cluster differs from what is indicated by etcd data, the cluster is changed to match

Things to consider

• If etcd is used as a backing store in Kubernetes, make sure to perform back ups