How Salesforce migrated from Cluster Autoscaler to Karpenter across their fleet of 1,000 EKS clusters

As organizations scale their Kubernetes deployments, Kubernetes cluster scaling has traditionally been complex and slow, requiring careful management of node groups and auto scaling configurations. Karpenter, an open source node provisioning project for Kubernetes, can help transform this approach by directly provisioning right-sized nodes based on real-time workload demands. A recent Datadog report reveals that the percentage of nodes provisioned by Karpenter rose by 22% in the last 2 years as organizations migrate from traditional auto scaling approaches. This growth underscores Amazon Web Services (AWS) leadership in cloud-based innovation and the container ecosystem’s recognition of Karpenter’s strong performance and cost efficiency benefits. The following post examines how Salesforce, operating one of the world’s largest Kubernetes deployments, successfully migrated from Cluster Autoscaler to Karpenter across their fleet of 1,000 plus Amazon Elastic Kubernetes Service (Amazon EKS) clusters.

https://aws.amazon.com/blogs/architecture/how-salesforce-migrated-from-cluster-autoscaler-to-karpenter-across-their-fleet-of-1000-eks-clusters/