Q: How do you prevent accidental deletion of an S3 bucket with important data?
Enable S3 Versioning + MFA Delete. Enable S3 Object Lock (WORM). Use a bucket policy with Deny for s3:DeleteBucket. Enable AWS Config rul...
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🎙️ Candidate Opening & Architectural Context
""In a previous role, our monitoring paged me for a similar incident across our AWS VPC infrastructure. 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
1️⃣
Production Solution & Architecture
Enable S3 Versioning + MFA Delete. Enable S3 Object Lock (WORM). Use a bucket policy with Deny for s3:DeleteBucket. Enable AWS Config rule that alerts on deletion attempts.
💡 The Senior SRE Gold Nugget (Key Architectural Takeaway)
"Pro-Tip: Enable S3 Versioning + MFA Delete. Enable S3 Object Lock (WORM). Use a bucket policy with Deny for s3:DeleteBucket. Enable AWS Con."
⚡ 60-Second Elevator Pitch Talking Points
- Immediate Triage: Enable S3 Versioning + MFA Delete. Enable S3 Object Lock (WORM). Use a bucket policy with Deny
- Run targeted verification commands before modifying configuration.
- Automate permanent guardrails (CI check, alerts, IaC policy) to prevent recurrence.
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