BuildRoulette
Hands-On Incident Scenarios 2 Challenges Published

Practical Cloud Engineering Challenges

Tackle complex real-world outages on your personal cloud account: diagnose split-brain database failovers, resolve IAM KMS deadlocks, and troubleshoot multi-region architectures with automated CLI verifiers.

This challenge runs in your AWS account. AWS charges may apply. BuildRoulette does not pay or reimburse cloud costs.
Free Challenge Advanced CHAL-01
45 min challenge

Recover a corrupted RDS Multi-AZ failover

### 1. Incident Scenario At 03:14 UTC, AWS completed an automatic Multi-AZ failover for our primary production PostgreSQL RDS cluster (`production-core-db`). The standby was promoted to pri...