Mastering Infrastructure as Code: Terragrunt Fundamentals

If you have spent any time working with HashiCorp Terraform, you have likely encountered the "Scaling Wall." You start with a single module to deploy a VPC. It works perfectly. Then, you need to deploy that same VPC to a staging environment. Easy—you copy the folder and change the variables. Then comes production. Then comes a second region. Suddenly, you are managing dozens of nearly identical folders, each containing almost the exact same backend configuration and provider settings.