Re: [libvirt] Is there an API for clone?
On 11/12/2010 02:07 AM, 黄亮 wrote:
Hi Alex
Thank you for your reply.
I just wanna make sure I'm not misunderstanding,
virStorageVolGetXMLDesc & virStorageVolCreateXMLFrom together can do
the clone process, am I right?
In fact, libvirt will call a group of APIs to
complete vol-clone
operation, you can track the whole calling process, it looks like this:
virsh vol-clone <vol-key>
<newname>
|
V
virConnectOpenAuth
|
V
virStorageVolLookupByKey
|
V
virStoragePoolLookupByVolume ('default' is default pool)
|
V
virStorageVolGetXMLDesc
|
V
virStorageVolCreateXMLFrom
|
V
virStorageVolGetName (twice)
|
V
virStorageVolFree (twice)
|
V
virStoragePoolFree
|
V
virConnectClose
Alex
Regards
2010-11-12
------------------------------------------------------------------------
Lancer
------------------------------------------------------------------------
*发件人：* Alex Jia
*发送时间：* 2010-11-10 13:28:21
*收件人：* 黄亮
*抄送：* libvir-list
*主题：* Re: [libvirt] Is there an API for clone?
Hi lancer,
As Osier said, libvirt hasn't a independent API for cloning an
existing guest, instead of using virStorageVolGetXMLDesc API to
get a guest volume xml description and then calling
virStorageVolCreateXMLFrom API to clone a new volume.
For python-virtinst component, you may use virt-clone to implement
this, for libvirt component, you may directly use python binding
API or virsh tool 'vol-clone' to implement it.
I hope it's helpful for you.
- Alex
----- Original Message -----
From: "黄亮" <lancerhuang(a)163.com>
To: "libvir-list" <libvir-list(a)redhat.com>
Sent: Wednesday, November 10, 2010 9:30:28 AM GMT +08:00 Beijing / Chongqing / Hong Kong
/ Urumqi
Subject: [libvirt] Is there an API for clone?
Hi, guys
I know there is a command "virt-clone", but I couldn't find the equivalent
API here : http://libvirt.org/html/libvirt-libvirt.html
So, is there an API to clone an existing VM or not?
Thank you!
Regards
2010-11-10
Lancer
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