How to set an environment variable in Amazon EC2

Question

I created a tag on the AWS console for one of my EC2 instances.

Howeve

Answer 1

Lately, it seems AWS Parameter Store is a better solution.

Now there is even a secrets manager which auto manages sensitive configurations as database keys and such..

See this script using SSM Parameter Store based of the previous solutions by Guy and PJ Bergeron.

https://github.com/lezavala/ec2-ssm-env