IaC Testing & Validation

Summary

Validating infrastructure code before applying it to real environments — syntax checks, policy checks (e.g. 'no public S3 buckets'), and plan review as a lightweight but essential testing layer.

• 1Run a linter or validator against a Terraform configuration before applying it.
• 2Learn the concept of policy-as-code (e.g. Open Policy Agent) for enforcing infrastructure rules automatically.
• 3Practice treating a terraform plan output as a required review step, not something to skip.