How to set Environment Variables on EC2 instance via User Data

Question

I am trying to set environment variables with EC2s user data, but nothing i do seems to work

here are the User data scripts i tried

#!/b         


        

Answer 1

You can add another shell script in /etc/profile.d/yourscript.sh which will contain the set of environment variables you want to add.

This script will run at every bootup and your variable will be available to all users.

#!/bin/sh
echo 'export AWS_DEFAULT_REGION=ap-southeast-2' > ~/myconfiguration.sh
chmod +x ~/myconfiguration.sh
sudo cp ~/myconfiguration.sh /etc/profile.d/myconfiguration.sh

The above code creates a shell script to set environment variable for aws default region and copies it to profile.d .