Linux apps come closer to running under data center Windows
Microsoft has previously allowed certain Linuxes to run on the Azure cloud in a Hyper-V container. So it was possible to run a Linux application there, provided you knew enough about the app to match it up with an appropriate copy of Linux. With Docker supported by Windows Server, it will be much easier to get a Linux application to run in a Hyper-V virtual machine in the data center. Any Windows Server supporting Docker should be take a Dockerized Linux app and run it in a virtual machine. There are 45,000 such apps available on the Docker Hub.