Azure Kubernetes Service (AKS) multi-node pools is in preview
Published date: 06 May, 2019
Multiple node pools for AKS allow customers to use different virtual machine sizes in a node pool supporting a variety of workloads in a single AKS cluster. For example, an e-commerce website can have a node pool for a billing service and another for a machine learning-based recommendation service, each with potentially different VM types.
This feature is in preview.