As organizations scale their workloads in Kubernetes, managing cluster resources efficiently becomes paramount. Kubernetes provides built-in scaling capabilities, such as the Horizontal Pod Autoscaler (HPA) and Vertical Pod Autoscaler (VPA), but scaling the underlying nodes is where Cluster Autoscaler (CA) has been the go-to solution for years. However, Karpenter, an open-source node provisioning solution, has emerged as a strong alternative, promising more efficient and dynamic scaling.

In this article, we will delve deep into the features, benefits, limitations, and use cases of Karpenter and Kubernetes Cluster Autoscaler. By the end, you will be able to determine which tool best suits your needs.

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