New Policy (Azure Kubernetes Services): Ensure ephemeral disks are used for OS disks on Agent Pool Profiles #435
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Policy
Description
Ensure ephemeral disks are used for OS disks on Agent Pool Profiles
Details
Ephemeral OS disks are created on the local virtual machine (VM) storage and not saved to the remote Azure Storage, as when using managed OS disks. For more information on the performance of a managed disk, see Disk allocation and performance. Ephemeral OS disks work well for stateless workloads, where applications are tolerant of individual VM failures but are more affected by VM deployment time or reimaging of individual VM instances. With Ephemeral OS disks, you get lower read/write latency to the OS disk and faster VM reimage.
The key features of ephemeral disks are the following:
Source: https://learn.microsoft.com/en-us/samples/azure-samples/aks-ephemeral-os-disk/aks-ephemeral-os-disk
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