Riley: “The Kubernetes cluster running one cron job.” — We need to cut costs. Where do we start?

We need to cut costs. Where do we start?

We need to cut costs. Where do we start?“The Kubernetes cluster running one cron job.”Riley Novak, The Minimalist

💡 WHY RILEY IS RIGHT

The expensive line is rarely the compute itself; it is the control plane, the node pool sized for headroom, the managed add-ons, and the engineer hours spent upgrading all of it. When a cluster exists to run one scheduled job, replacing it with cron on a small VM removes a bill, a pager rotation and an upgrade calendar in one afternoon. Wins like that need no business case and no migration plan, and they hide in every organization that adopted orchestration before it had workloads.

✅ RIGHT WHEN

Infrastructure is clearly oversized for a known, small, stable workload.

🚩 TOO FAR WHEN

Twelve teams now maintain twelve hand-rolled cron hosts with twelve ways to fail silently.