This is adaptation of the Custom Auto Scaling for Azure ARM Virtual Machines sample. The goal of the adaptation is to get the original sample working in Azure Government. The Custom Auto Scaling for Azure ARM Virtual Machines blog post does a good job explaining the scenarios when one would want to use this approach. Unfortunately, the Custom Auto Scaling for Azure ARM Virtual Machines sample uses the Get-AzureRmMetric command, which doesn't work with Azure Government as of 5/2/2017. Once the Get-AzureRmMetric command works with Azure Government, you should consider using the orginal sample.
This code was created using Visual Studio 2017. Review the following blog post for instructions to get it up and running: https://blogs.msdn.microsoft.com/devkeydet/2017/05/03/custom-autoscale-for-arm-virtual-machines-in-azure-government/.