How to efficiently scale your workload in Kubernetes using observability

Observability in Kubernetes can significantly enhance workload efficiency and scaling by offering deeper insights beyond default metrics, enabling cost and energy optimization. Henrik Rexed from Dynatrace illustrates how defining resource quotas and optimizing allocations are crucial for efficient auto-scaling, using tools like Prometheus, Dynatrace, and the Keptn Metric Server. These tools facilitate the use of external metrics in Horizontal Pod Autoscaler (HPA) rules, allowing for more precise scaling actions. This approach not only saves costs but also supports green IT initiatives by reducing energy use. A case study on a new retail portal highlights how leveraging observability led to faster response times, increased efficiency from 20% to 47%, and reduced operational costs significantly. Emphasizing the importance of reporting workload costs from day one, the blog encourages using these insights to continually optimize Kubernetes environments.