Q: How do you prevent accidental destruction of production resources in Terraform?
Multiple layers: lifecycle { prevent_destroy = true } on critical resources. Pipeline policy that fails if plan contains destroys. AWS Co...
#Terraform #Use VPC ID from another module #L3 #IaC #Cloud Infrastructure #S3
🎙️ Candidate Opening & Architectural Context
""In our enterprise Terraform repository, we designed reusable modules and remote backends to prevent this exact issue. When addressing this question, I walk the interviewer through our production incident runbook: isolating the blast radius, checking diagnostic logs and metrics, and applying a safe fix.""
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🛠️ Production Runbook & Step-by-Step Resolution
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Production Solution & Architecture
Multiple layers: lifecycle { prevent_destroy = true } on critical resources. Pipeline policy that fails if plan contains destroys. AWS Config rules that alert on resource deletion. S3 MFA Delete for the state bucket itself.
💡 The Senior SRE Gold Nugget (Key Architectural Takeaway)
"Pro-Tip: Multiple layers: lifecycle { prevent_destroy = true } on critical resources. Pipeline policy that fails if plan contains destroys.."
⚡ 60-Second Elevator Pitch Talking Points
- Immediate Triage: Multiple layers: lifecycle { prevent_destroy = true } on critical resources. Pipeline policy th
- Run targeted verification commands before modifying configuration.
- Automate permanent guardrails (CI check, alerts, IaC policy) to prevent recurrence.
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