Slaying the Cloud Monster: How We Cut Kubernetes Cluster Spend by 46%
As cloud infrastructure scales, efficiency often takes a backseat to feature velocity. Within 12 to 18 months, companies find their AWS or GCP bills compounding exponentially. In our recent engagement with a mid-market SaaS provider, we reclaimed $380,000 in annualized cloud waste in less than 6 weeks.
The Silent Killer: Zombie Requests vs Usage
Most engineering squads set pod CPU and memory requests based on defensive estimates rather than empirical metrics. When a container requesting 4 CPU cores only uses 0.2 cores at steady state, Kubernetes nodes sit 85% idle while you pay 100% of the compute bill.
Dynamic Spot Arbitrage with Karpenter
By swapping legacy autoscalers with Karpenter, we provisioned diverse EC2 instance types on the AWS Spot Market with automated disruption handling. Fault-tolerant stateless workloads ran on spot instances at 70% discounts, backed by automated fallback to on-demand instances during capacity crunches.
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