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[Michael Still <mikal@xxxxxxxxxxx>]

So, there are a few things which happen here. VM provisioning is handled by
the compute driver (checkout run_instance in nova/compute/manager.py).
Scheduling however is handled by the scheduler, which has a plugin system
(checkout nova/scheduler/*).

Also, you'd be better off browing git for the source code (
http://github.com/openstack/nova.git) instead of the system installed files.

Cheers,
Michael


On Mon, Apr 29, 2013 at 7:14 PM, Deepak Jeswani1 <dejeswan@xxxxxxxxxx>wrote:

> Hello everyone,
>
> I am trying to understand the flow of control in code in openstack for
> provisioning a VM. I want to understand it in order to do modify scheduler
> module as per our requirements.
>
> I have found the code base which, if I am not wrong, is kept in
> /usr/share/pyshared/nova/* directory but I can't see .py files getting
> accessed or executed if I provision a VM.
>
> Can someone please help me to understand the flow of code or give me
> pointers from where I can understand it. I hope even if I know the starting
> point (REST handler for VM provisioning call) in code then I will be able
> to trace it.
>
> Thanks
>
> Regards
> Deepak
>
> Deepak Jeswani
> Software Engineer,
> Distributed Systems Group,
> IBM Research-India
>
>
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