7.14.3.

apiVersion: kubevirt.io/v1
kind: VirtualMachine
metadata:
  name: <vm_name>
spec:
  template:
# ...
    spec:
      domain:
        devices:
          disks:
          - disk:
              bus: virtio
            name: rootdisk
            disk1: disk_one 

          - disk:
              bus: virtio
            name: cloudinitdisk
            disk2: disk_two
            shareable: true 

          interfaces:
          - masquerade: {}
            name: default