[Libvir] [PATCH][RFC] Adding Cloning Feature

[Kazuki Mizushima]

Hi all,

I've been planing to adding cloning feature.

1)Get the XML used virDomainGetXMLDesc
2)Delete <uuid>, <mac> node element
  This intened to automatically generated.
3)Changing <name>, <source dev> string node element
4)Fork "dd" process
5)Define XML used virDomainDefineXML


Also Remote Cloining is Limited.
But if we can libvirtd for feature, it will be enhance remote cloning
based on this pach
(as http://libvirt.org/remote.html#Remote_libvirtd_configuration)



Could you hear your comments about this ?

Attached patch shows below.
---------------------------------------------
# ./virsh --help clone
 NAME
   clone - clone a domain

 SYNOPSIS
   virsh clone <domain> <devices,...>

 DESCRIPTION
   Clone a domain.

 OPTIONS
   <domain>         shut off state domain name
   <devices>        destination devices (comma separated)

# ./virsh clone PV_RH5 /dev/sdb2
Cloning from /dev/sda5 to /dev/sdb2 .....

# ./virsh list --all
Id Name                 State
----------------------------------
 0 Domain-0             running
 - PV_RH5               shut off
 - PV_RH5_CLONE         shut off

#./virsh start PV_RH5_CLONE
Domain PV_RH5_CLONE started
---------------------------------------------

Thanks,
Kazuki Mizushima

Then, I tried to make the patch in the following way. This feature is just a first revision, because I make this patch within current libvirt API limitation. Finally, to have to communicate with the demon remotely as libvirt library, actually I want to put down to new libvirt API (e.g. virDomainClone).

cloning.patch
Description: Binary data

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