terraform-fullstack-infrastructure-as-code

Terraform Fullstack Infrastructure As Code

Use When

• Infrastructure managed across AWS, Azure, or GCP
• Teams need repeatable environment provisioning

Workflow

1. Model environments with clear variable contracts
2. Use modules for network, compute, data, and observability
3. Enforce plan/apply gates in CI/CD
4. Define state backend locking and access controls
5. Document destroy and rollback implications

Required Checks

• Terraform plans reviewed before apply
• Secrets not stored in state plaintext
• Drift detection scheduled or enforced
• Blast radius limited per module boundary

Decision Framework

• Keep modules small and composable
• Pin provider versions for reproducibility
• Separate state per environment or domain
• Run policy checks (OPA/Sentinel/Checkov) in pipeline

Common Rationalizations And Rebuttals

• "ClickOps is faster." -> Drift and audit gaps accumulate.
• "One giant module is easier." -> Changes become risky and slow.
• "Apply without plan review." -> Production incidents become likely.

Evidence Pack

• Plan output attached to change request
• Policy check pass evidence
• Rollback or destroy-safe notes for data resources
• Post-apply smoke test results

Exit Criteria

• Infrastructure changes are auditable and reversible
• Environments stay consistent across teams