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linux-scripts/ubuntu/ubuntu-set-ip.sh

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#!/bin/bash
if [ "$EUID" -ne 0 ]
then
echo "Please run as root"
exit
fi
# set static ip address
if [[ ! -d /etc/cloud ]]
then
read -r -p "Enter Static IP Address with subnet prefix: " staticip
read -r -p "Enter Gateway IP Address: " gatewayip
read -r -p "Enter DNS IP Address (separated by commas): " dnsip
# get adapter name
name=$(basename /sys/class/net/e*)
# backup original netplan yaml file
mv /etc/netplan/00-installer-config.yaml /etc/netplan/00-installer-config.yaml.bak > /dev/null 2>&1
rm /etc/netplan/01-network-manager-all.yaml > /dev/null 2>&1
# create new netplan yaml file
cat >> /etc/netplan/01-network-manager-all.yaml <<HERE
network:
version: 2
renderer: networkd
ethernets:
$name:
addresses:
- $staticip
nameservers:
addresses: [$dnsip]
routes:
- to: default
via: $gatewayip
HERE
# apply netplan
sudo netplan apply
echo "Static IP set successfully."
else
echo "Static IP not set on cloud image."
fi