Karpenter

Led cost optimization engagements across 50+ customer environments at CloudKeeper. Worked on right-sizing pods, tuning VPA/HPA configurations, implementing Karpenter with optimal bin-packing, and moving eligible workloads to spot instances. Key results: Reduced one customer’s monthly bill by $20K on a $111K/month account (18% savings) Saved a logistics platform $15K+/month through EKS and Karpenter optimization Standardized cost review questionnaires and savings tracking across the team Tools: EKS, Karpenter, VPA, HPA, KEDA, Helm, Terraform ...

How Karpenter handles pod density differently from AWS defaults, and what that means for your cluster capacity planning. Read on CloudKeeper →

Karpenter efficiently provisions nodes to match pod requests, but if developers request 4 CPUs for a pod that uses 0.2 CPUs, Karpenter will buy a node to fit that bloated request. It bin-packs waste, but it cannot fix the waste itself. Built an internal scheduling component that optimizes at the scheduling stage itself, not just at provisioning. Ran 14 internal iteration cycles to find the optimal bin-packing strategy that accounts for actual resource utilization, not just requested resources. ...