Day 25/30: “I clicked around until it worked” is not documentation

Infrastructure as Code lets you define cloud resources using code.

Tools such as AWS CloudFormation and the AWS CDK can create repeatable, reviewable environments.

This means development, testing and production can follow the same blueprint.

It also reduces the mystery of the one server that only works because someone changed a setting three years ago.

If infrastructure matters, it should be reproducible—not dependent on Trevor remembering what he clicked.