Why Azure Arc Is A Game Changer For Microsoft
"With Azure Arc, Microsoft has expanded the support for ARM to resources running outside of Azure. This means, a physical server running in a data center looks like a compute resource in the eyes of the Fabric Controller. Even VMs running on top of VMware vSphere, Amazon EC2, and Google Compute Engine can be registered with the Azure Resource Manager. Any Windows or Linux server - even those running behind a firewall and proxy - can be registered with ARM. The external VMs run a similar software like the agent that runs inside Azure VMs."
Azure Arc | Microsoft Azure