VM Calling API to send messages to Hypervisor

LonnieTC

Hi All,

I am thinking a bit about the XCP-ng API and am wondering if a VM can send a message to the hypervisor to start, or stop, another specific VM. Just exploring capabilities of XCP-ng.

Any thoughts?
Thanks

olivierlambert

Why not using XO for that?

LonnieTC

Is XO meaning the "xen orchestra". If so, then that may not work as part of the project is an application that will be running from within a VM as well and that VM will control others via messages to the hypervisor. At least, that is the current idea that I need to work through.

https://xapi-project.github.io/xen-api/
and
https://xenproject.org/developers/teams/xen-api/

Does XCP-ng also utilize the same type of API call as the standard Xen? Can I use the same calls?

If so, then my next step will be to see if I can message the XCP-ng hypervisor from within a VM.

Thanks Again.

olivierlambert

Xen Orchestra, yes. It's connected to XAPI, and there's no agent on the host.
I don't understand: Xen Orchestra is running anywhere you want. In a VM if you want to.
Please explain more your use case before going further. XAPI is very powerful, but really, it took us years to master it for XO.

LonnieTC

The XO has too much functionality and way too advanced for what I need in this prototype.

This is a type of "desktop" that will be in C/C++ that only has a few simple tasks for the VM's to be called.

Start /Stop a VM
Import/Delete a VM

Really nothing more for it to do, but will be in a VM itself to control the other VM's

olivierlambert

Again, please explain more about the use case, ie functionally speaking. If you don't share what do you want to do, it's really hard to give you any advice.

LonnieTC

Well, I just installed XO Community Edition so that I can get a feel for things and learn a bit before going to the next level.

Now, I would like to find out how to setup some test VM's to play around with for a while.

Is there any easy way to migrate my Virtualbox VM (Linux host) into an XCP-ng VM?

borzel

@LonnieTC And whats your use case? What is the thing you want to do? Whats your goal? QA? Automated test environment?

Why can't you just say it?

LonnieTC

It's a prototype concept but has to do with cloud computing to increase user productivity. I have not wanted to mention much about it yet because it is still evolving in form, but once it could be initially ready then I will be able to clarify it more when I see how it is going to come out.

Sorry to be vague on the project prototype, but the full outline is still not laid out since it is a work in progress, but I have an overall idea as to what I would like to achieve.

Beyond that, it is still a research and development prototype project under way.
Thanks again

olivierlambert

From Vbox to XCP-ng: export in OVA then import with XO.