Cluster idles at 8 % yet the bill soars? Learn how Prometheus data + KRR, a 50-line Python wrapper, Grafana and ArgoCD reclaimed 500 vCPU and 200 GiB across dozens of Kubernetes clusters—no magic, no incidents, just rightsizing done right.
Early in 2023, challenged by rising Kubernetes issues in production environments, I crafted an audit methodology to diagnose clusters, identify misconfigurations, and establish best practices. Delivered by summer, it enabled clients to transform reliability and performance.
A colleague spotted a strange sawtooth pattern in Grafana. Digging deeper into Kubernetes nodes pointed me toward suspiciously high disk I/O wait times linked to EFS. How was it solved?
