Modules Best Practices

Terraform module best practices focus on creating reusable, maintainable, and scalable infrastructure components.

• Modules should have a single, clear purpose and be designed with flexibility in mind, using input variables for customization.
• Outputs should be carefully chosen to provide necessary information without over-exposing internal details.
• Version your modules and use semantic versioning to manage changes.
• Keep modules small and focused, adhering to the single responsibility principle.
• Document your modules thoroughly, including usage examples and input/output descriptions.
• Use consistent naming conventions and structure across modules.
• Test modules in isolation and as part of larger systems.
• Avoid hard-coding values that might change across environments.
• Consider using nested modules for complex structures, but be mindful of over-nesting.
• Regularly review and refactor modules to incorporate improvements and maintain best practices.

Learn more from the following resources:

• @official@Module Best Practices
• @article@Terraform Modules Guide: Best Practices & Examples
• @video@Best practices for modularizing a Terraform project | PlatformCon 2023