Examples and Terraform modules should contain documentation explaining features and how to use them.
All links in README.md files should be absolute to make Terraform Registry website show them correctly.
Documentation may include diagrams created with mermaid and blueprints created with cloudcraft.co.
Use Terraform pre-commit hooks to make sure that the code is valid, properly formatted, and automatically documented before it is pushed to git and reviewed by humans.
Documentation
Automatically generated documentation
pre-commit is a framework for managing and maintaining multi-language pre-commit hooks. It is written in Python and is a powerful tool to do something automatically on a developer's machine before code is committed to a git repository. Normally, it is used to run linters and format code (see supported hooks).
With Terraform configurations pre-commit can be used to format and validate code, as well as to update documentation.
terraform-docs is a tool that does the generation of documentation from Terraform modules in various output formats. You can run it manually (without pre-commit hooks), or use pre-commit-terraform hooks to get the documentation updated automatically.