Kubernetes Cost Optimization: Cutting Your Cloud Bill by 60%
Practical techniques for reducing Kubernetes infrastructure costs without sacrificing reliability, tested on clusters spending $50K+/month.
Kubernetes Cost Optimization: Cutting Your Cloud Bill by 60%
The Problem
Most K8s clusters are 60-70% over-provisioned. Engineers request resources based on peak load, but average utilization is 15-25%.
Technique 1: Right-Sizing (saves 30-40%)
Use VPA (Vertical Pod Autoscaler)
VPA recommends CPU/memory requests based on actual usage. Run it in "recommend" mode for 2 weeks, then apply.
The 90th Percentile Rule
Set requests at P90 of actual usage, limits at P99. This handles m