5.1.1.1. OS Setup

5.1.1.1.1. Basic OS Setup

This section covers the basic preparation of ETCD nodes before installing components. It describes setting up environment variables, changing the hostname, and installing necessary system utilities. These steps are mandatory for the correct operation of etcdctl and other components.

Basic node setup

● Required

Basic node settings

• Node environment variables.
• Changing the node name.
• Installing dependencies.

Node environment variables

master-1

export HOST_NAME=master-1

master-2

export HOST_NAME=master-2

master-3

export HOST_NAME=master-3

export CLUSTER_NAME="my-first-cluster"
export BASE_DOMAIN="example.com"
export CLUSTER_DOMAIN="cluster.local"
export FULL_HOST_NAME="${HOST_NAME}.${CLUSTER_NAME}.${BASE_DOMAIN}"

Changing the node name

hostnamectl set-hostname ${FULL_HOST_NAME}

Installing dependencies

apt

sudo apt update
sudo apt install -y conntrack socat jq tree

yum

sudo yum update
sudo yum install -y conntrack-tools socat jq tree

dnf

sudo dnf update
sudo dnf install -y conntrack-tools socat jq tree