[libvirt] Google Summer of Code 2013 ideas wiki open

[Stefan Hajnoczi]

On Fri, Apr 12, 2013 at 10:58 AM, Daniel P. Berrange
<berrange at redhat.com> wrote:
> On Fri, Apr 12, 2013 at 08:34:18AM +0200, Michal Privoznik wrote:
>> On 10.04.2013 15:13, harryxiyou wrote:
>> >
>> > Hi all,
>> >
>> > I've also got some ideas like following for GSOC 2013.
>> >
>> > Storage driver jobs.
>> >
>> > Currently, there is no Libvirt storage API to rename storage volume,
>> > storage pool, snapshot, etc. There is also no Libvirt API to move
>> > volume from one pool to another using libvirt API. Possibly those
>> > pools could have different backend (lvm, dir, ...). So i wanna finish
>> > these jobs for Libvirt during GSOC 2013. See following in details.
>> >
>> >
>> > 1, Rename storage volume. I will develop ' virsh vol-rename xxx'
>> > option for virsh tool.
>> >
>> > 2, Rename storage pool. I will develop 'virsh pool-rename xxx'
>> > option for virsh tool.
>> >
>> > 3, Rename snapshot. I will develop 'virsh snapshot-rename xxx'
>> > option for virsh tool.
>>
>> I am not sure we want *rename virsh commands. Not only for storage, but
>> in general. And even if we do want these, they don't require a new API.
>> They can be implemented with simple vir*GetXML(); vir*Define();
>> vir*Undefine();
>
> Actually I disagree - I think you want explicit APIs for renames, so that
> it can be done atomically / with minimal risk of failure halfway.
>
>> >
>> > 4, Move volume from one pool to another. I will develop 'virsh vol-move xxx'
>> > option for virsh tool.
>>
>> This one makes more sense, however I am worried about difficulty a bit.
>> A GSoC project should take 3 months for a student to complete. This is
>> something that even unexperienced user can accomplish in less than a month.
>
> Isn't all the libvirt functionality for this already existing? it it
> is basically just  virStorageVolCreateFrom(...original vol) and then
> delete the original volume.

Michal said earlier that virsh vol-move seemed too small a task.

Do you think that these 4 tasks together merit a 12-week project?

Stefan