Modern Terraform deployments depend on more than valid HCL.
Production safety comes from a sequence of engineering checks performed before infrastructure changes begin. Version pinning keeps execution consistent. Remote state prevents conflicting infrastructure history. Validation catches defects early. Lifecycle rules protect critical resources. Least-privilege IAM limits deployment authority. Execution plan review provides the final verification before AWS receives any API calls.
This lesson explains how these safeguards fit together into a practical production readiness checklist rather than treating them as isolated Terraform features.