CrashLoopBackOff: Why Databases Crash-Loop on Kubernetes and How to Fix It
We broke PostgreSQL 18 and MySQL 8.4 on Kubernetes 22 different ways - OOM kills, failed probes, bad Secrets, PVC and disk problems, config typos and version changes - and wrote down exactly what CrashLoopBackOff looked like each time, how to diagnose it in a minute, and which fixes actually work. Several 'fixed' pods came back Ready but broken.








