This is a demo of a third party extention that was never upstreamed.

nova does not support create a base vm and then doing a local live migration or restore for memory snapshots to create another vm.

this approch likely has several security implciations that would not be accpeatable in a multi tenant enviornment.

we have disucssed this type of vm creation in the past and determined that it is not a valid implematnion of spawn. a virt driver that precreate vms or copys an existing instance can be faster but that virt driver is not considered a compliant implementation.

just to follow up on this see the note on vm launch

https://docs.openstack.org/nova/latest/user/support-matrix.html#operation_launch

Launch instance

Status: mandatory.

Notes: Importing pre-existing running virtual machines on a host is considered out of scope of the cloud paradigm. Therefore this operation is mandatory to support in drivers.

the type of fast boot descibed in that video is not a valid implemation of creating a  server. instance.

so in short there is no way to achive this today in a compliant openstack powered cloud.

On 25/03/2021 12:21, open infra wrote:

Hi,

I was looking for a way to provision and connect to VMs within a few seconds and ended up in the OpenStack Summit demo on 'OpenStack Virtual Machine Quickly Available in One Second'.

I highly appreciate if someone can provide a tutorial or related documentation on how to achieve this?

Regards,
Danishka