Kubernetes Probes + .NET: Liveness, Readiness and Startup in Production

I once watched a .NET service restart in a loop for twenty minutes while every other signal said it was fine. The readiness probe was passing. The liveness probe was passing. The pod was being killed anyway. The problem was that both probes pointed to the same /health endpoint — one that checked the database. The database was slow during a migration. The pod failed liveness, got killed, restarted, tried to connect to the database again, failed liveness again. A perfectly healthy process was bein