Q: CloudFront is serving stale content after you updated S3.
Invalidate the CloudFront cache: aws cloudfront create-invalidation --distribution-id <id> --paths "/". Or use cache-control headers and ...
#AWS #Cost & Architecture #L2 #Cloud #Infrastructure #S3
🎙️ 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.""
Advertisement
🛠️ Production Runbook & Step-by-Step Resolution
1️⃣
Production Solution & Architecture
Invalidate the CloudFront cache: aws cloudfront create-invalidation --distribution-id . Or use cache-control headers and versioned file names to prevent caching issues.
💡 The Senior SRE Gold Nugget (Key Architectural Takeaway)
"Pro-Tip: Invalidate the CloudFront cache: aws cloudfront create-invalidation --distribution-id --paths "/*". Or use cache-control headers ."
⚡ 60-Second Elevator Pitch Talking Points
- Immediate Triage: Invalidate the CloudFront cache: aws cloudfront create-invalidation --distribution-id --paths
- Run targeted verification commands before modifying configuration.
- Automate permanent guardrails (CI check, alerts, IaC policy) to prevent recurrence.
Advertisement