[libvirt] Create a copy of a Domain

[IKI-サガル バルウェ]

Thanks Daniel,

>> I think you must at least change the UUID (/domain/uuid) and name
>> (/domain/name) in the XML description. Very like you also need to 
>> duplicate
>> the used disk images and update their paths
>> (/domain/devices/disk/source/@file) accordingly, unless you really want 
>> your
>> domians to share them.

I will definately try this out. As for changing the UUID, I think the new 
value has to be unique in terms of all other Domains present. I am right??

> Better yet use the 'virt-clone' command line tool, or virt-manager's clone
> capability

As for using 'virt-clone', is there a way to implement this using python 
bindings for libvirt??
I want to provide the functionality in a python script.
I thought of doing this by directly executing the command line 'virt-clone' 
command from my python script and check wheather it executes successfully or 
not. We can do this by the 'os.system' function in python.


Thanks and Regards
Sagar Barve

----- Original Message ----- 
From: "Daniel P. Berrange" <berrange at redhat.com>
To: "Philipp Hahn" <hahn at univention.de>
Cc: <libvir-list at redhat.com>
Sent: Thursday, June 10, 2010 7:45 PM
Subject: Re: [libvirt] Create a copy of a Domain


> On Thu, Jun 10, 2010 at 10:58:54AM +0200, Philipp Hahn wrote:
>> Hello,
>>
>> Am Donnerstag 10 Juni 2010 10:28:15 schrieb IKI-サガル　バルウェ:
>> > 1. Get the XML Desc of the source Domain using "virDomainGetXMLDesc".
>> > 2. Get the Hypervisor Object for the source Domain using
>> > "virDomainGetConnect".
>> > 3. Create a new Domain using the "virDomainCreateXML" method.
>> >
>> > After doing this, I get the following error:
>> >
>> > libvirt.libvirtError: POST operation failed: xend_post: error from xen
>> > daemon: (xend.err "Error creating domain: VM name already in use by 
>> > domain
>> > 4")
>>
>> I think you must at least change the UUID (/domain/uuid) and name
>> (/domain/name) in the XML description. Very like you also need to 
>> duplicate
>> the used disk images and update their paths
>> (/domain/devices/disk/source/@file) accordingly, unless you really want 
>> your
>> domians to share them.
>
> Better yet use the 'virt-clone' command line tool, or virt-manager's clone
> capability
>
> Daniel
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