Terraform Best Practices

Comprehensive optimization guide for Terraform and Infrastructure as Code, maintained by Terramate. Contains 37 rules across 10 categories, prioritized by impact to guide automated refactoring and code generation.

When to Apply

Reference these guidelines when:

• Writing new Terraform modules or configurations
• Implementing infrastructure patterns (AWS, GCP, Azure, etc.)
• Reviewing code for security and reliability issues
• Refactoring existing Terraform/OpenTofu code
• Optimizing state management and performance
• Setting up team workflows and governance

Rule Categories by Priority