scaleset_options: Virtual machine scaleset options
In AzureVM: Virtual Machines in 'Azure'

Virtual machine scaleset options

scaleset_options(keylogin = TRUE, managed_identity = TRUE,
  public = FALSE, priority = c("regular", "spot"),
  delete_on_evict = FALSE, network_accel = FALSE, large_scaleset = FALSE,
  overprovision = TRUE, upgrade_policy = list(mode = "manual"),
  os_disk_type = c("Premium_LRS", "StandardSSD_LRS", "Standard_LRS"))

`keylogin`	Whether to use an SSH public key to login (TRUE) or a password (FALSE). Note that Windows does not support SSH key logins.
`managed_identity`	Whether to provide a managed system identity for the VM.
`public`	Whether the instances (nodes) of the scaleset should be visible from the public internet.
`priority`	The priority of the VM scaleset, either `regular` or `spot`. Spot VMs are considerably cheaper but subject to eviction if other, higher-priority workloads require compute resources.
`delete_on_evict`	If spot-priority VMs are being used, whether evicting (shutting down) a VM should delete it, as opposed to just deallocating it.
`network_accel`	Whether to enable accelerated networking. This option is only available for certain VM sizes.
`large_scaleset`	Whether to enable scaleset sizes > 100 instances.
`overprovision`	Whether to overprovision the scaleset on creation.
`upgrade_policy`	A list, giving the VM upgrade policy for the scaleset.
`os_disk_type`	The type of primary disk for the VM. Change this to "StandardSSD_LRS" or "Standard_LRS" if the VM size doesn't support premium storage.