User Story

As a user of OpenShift Machinesets I want use ephemeral storage disks so that I can reduce the cost of my storage for specific workloads

Background

Ephemeral OS Disks can be added to machines by setting a specific option on the request to create the VM. This will provision what are known as ephemeral disks which are cheaper than the conventional disks used in Azure VMs.

Steps

• Implement the new API fields for the feature
• Implement the plumbing to plum this through to the create vm call

Stakeholders

• Cluster Infra

Definition of Done

• Users can configure ephemeral OS disks

• Docs

• Documentation about the feature and the field should be added to product docs

• Testing

• Check that when the new options are provided, the disk created on the VM is an ephemeral disk