Modules and Code Reuse
Learn how Terraform modules package reusable infrastructure, accept inputs, expose outputs, and keep configurations DRY and maintainable.
Why Modules?
Copy-pasting the same resources across environments leads to drift and bugs. A module is a reusable, parameterized container of Terraform resources you can call many times with different inputs, keeping your code DRY.
Every Configuration Is a Module
The directory where you run terraform apply is the root module. Modules it calls are child modules. So you already use modules — you are just adding more.
All lessons in this course
- Providers and Resources
- Variables and Outputs
- State Management Fundamentals
- Modules and Code Reuse