Azure VM scale set

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https://docs.microsoft.com/en-us/azure/terraform/terraform-create-vm-scaleset-network-disks-hcl

https://docs.microsoft.com/en-us/azure/terraform/terraform-create-vm-scaleset-network-disks-using-packer-hcl

https://www.koding.com/docs/terraform/providers/azurerm/r/virtual_machine_scale_sets.html/

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