Advanced Labs
Production-grade incidents with no hints. Expert debugging required.
No hints mode
Advanced labs do not provide hints. You are expected to read man pages, official docs, and error messages to solve them.Labs
dkr-multi-stage-incident
Multi-Stage Build Incident
A production Docker image increased in size by 800MB overnight. Find the cause and fix the Dockerfile.
k8s-node-pressure
Node Pressure Eviction
Pods are being evicted and the cluster is degraded. Diagnose the resource pressure and fix it.
lnx-disk-full
Disk Full — Production System
A production server has run out of disk space. Services are failing. Find what consumed the disk and recover without data loss.