What are Terraform modules and how do I use them?

What are Terraform modules and how do I use them?

Terraform modules are reusable configurations that help organize and manage your infrastructure as code. You can use them to encapsulate resources and share them across different projects.

Can you give me an example of a simple Terraform module?

Sure! A simple module could be a VPC module that creates a Virtual Private Cloud with subnets, route tables, and internet gateways. You define the resources in a directory and call it from your main configuration.

How do I structure my Terraform module directory?

A typical module directory structure includes a main.tf file for resource definitions, variables.tf for input variables, outputs.tf for output values, and optionally a README.md for documentation.

Is it possible to use modules from the Terraform Registry?

Yes, you can use modules from the Terraform Registry by referencing them in your configuration. Just specify the source and version in your module block.