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Updated etcd example to mention tar availability in pod #1961

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6 changes: 5 additions & 1 deletion examples/etcd/etcd-in-cluster/k8s/README.md
Original file line number Diff line number Diff line change
@@ -1,7 +1,11 @@
This document is going to show you how you can backup the ETCD cluster that is running as part of your Kubernetes control plane. The
commands are run into a cluster that is setup using [Kubeadm](https://github.com/kubernetes/kubeadm) but it should work on any other single or multi node ETCD cluster.

The cluster this example is perfomed on is two node kubeadm cluster.
**Note**

This blueprint will only work if the ETCD pod has `tar` binary available
because `kubectl cp` command in the blueprint, requires `tar` binary to be
present on the ETCD pod.

## Prerequisites Details

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