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Enabling Nested-Virtualisation on Google cloud platform Instance
Important Excerpt from the below page.
You must run Linux-based OSes that can run QEMU; you can’t use Windows Server images.
You can’t use E2, N2D, or N1 with attached GPUs, and A2 machine types.
You must use Intel Haswell or later processors; AMD processors are not supported. If the default processor for a zone is Sandy Bridge or Ivy Bridge, change the minimum CPU selection for the VMs in that zone to Intel Haswell or later. For information about the processors supported in each zone, see Available regions and zones.
Though there are many use cases, I will speak from a networking standpoint. Let us say you need to do some sort of lab based on popular vMX Juniper or Cisco or any other vendor, if you have a bare metal instance, you have the ability to access the virtualised CPU cores and allocate them to the Qemu which will be the underlying emulator.
Issue
Almost by default most of the cloud providers will disable access to VT-x because of various reasons and some instances are not capable of supporting this by default. So either choose a custom instance with a custom CPU or go for a…
