Hello Michael, Many thanks for your response. I somehow found this code base (in installed openstack instance) and I inserted debug steps (opening a log file and printing statements into it) to see if the code flows through the file (specifically file '/usr/share/pyshared/nova/compute/api.py' in function 'def _create_instance'). Also I checked stat of all files to see if they get accessed when I do the provisioning. But neither my debug worked nor I could get the access stat of file.
So I have doubt. either these are not the files (but as you pointed out, these are the correct file) or I have to insert debug statements in source files and build them again to see effect. Let me do changes in source code, build it and see what happens. If you have any comments please let me know. Thanks Regards Deepak From: Michael Still <[email protected]> To: Deepak Jeswani1/India/IBM@IBMIN Cc: OpenStack general mailing list <[email protected]> Date: 04/29/2013 03:57 PM Subject: Re: [Openstack] Vm provision code flow in openstack Sent by: [email protected] 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 <[email protected]> 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 _______________________________________________ Mailing list: https://launchpad.net/~openstack Post to : [email protected] Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
_______________________________________________ Mailing list: https://launchpad.net/~openstack Post to : [email protected] Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
