How to install etcdctl in a cluster bootstrapped with kubeadm?

milot · February 1, 2021, 5:29pm

I’ve bootstrapped a cluster with kubeadm in GCP, but I’m being unable to run “ETCDCTL_API=3 etcdctl” commands. Came across this: How to install *just* etcdctl tool? · Issue #7487 · etcd-io/etcd · GitHub, but still unable to run any etcdctl commands. Some help please. Thanks!

Tej-Singh-Rana · February 2, 2021, 5:46am

You can follow steps from below link:

github.com

mmumshad/kubernetes-the-hard-way/blob/master/docs/07-bootstrapping-etcd.md#download-and-install-the-etcd-binaries

# Bootstrapping the etcd Cluster

Kubernetes components are stateless and store cluster state in [etcd](https://etcd.io/). In this lab you will bootstrap a two node etcd cluster and configure it for high availability and secure remote access.

## Prerequisites

The commands in this lab must be run on each controller instance: `master-1`, and `master-2`. Login to each of these using an SSH terminal.

### Running commands in parallel with tmux

[tmux](https://github.com/tmux/tmux/wiki) can be used to run commands on multiple compute instances at the same time.

## Bootstrapping an etcd Cluster Member

### Download and Install the etcd Binaries

Download the official etcd release binaries from the [etcd](https://github.com/etcd-io/etcd) GitHub project:

[//]: # (host:master-1-master2)

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milot · February 2, 2021, 2:39pm

Hi player001,

Thanks for your reply

This seems to be the method to install etcd as a service, while kubeadm deploys etcd as a pod in the kube-system.

I would be primarily interested in understanding how to access the etcd pod in kube-system.

Thanks!