Open Stack

On Mon, Jan 14, 2013 at 7:07 PM, Vishvananda Ishaya
<vishvananda at gmail.com>wrote:

>
> On Jan 14, 2013, at 9:28 AM, Antonio Messina <antonio.s.messina at gmail.com>
> wrote:
>
> On Mon, Jan 14, 2013 at 6:18 PM, Vishvananda Ishaya <vishvananda at gmail.com
> > wrote:
>
>>
>> On Jan 14, 2013, at 7:49 AM, Jay Pipes <jaypipes at gmail.com> wrote:
>>
>> >
>> > There is an integer key in the s3_images table that stores the map
>> > between the UUID and the AMI image id:
>> >
>> >
>> https://github.com/openstack/nova/blob/master/nova/db/sqlalchemy/models.py#L964
>> >
>> > Not sure this is available via Horizon... sorry.
>>
>> Correct. Here are some options:
>>
>> a) query the db directly for the mapping
>>
>> b) write an api extension to nova that exposes the mapping
>>
>> c) write an external utility that syncs the info from the nova db into
>> glance metadata
>>
>> d) modify horizon to list images through the ec2 api instead of glance
>>
>
> I guess d) depends on b), since  we cannot assume horizon is running on
> the same machine as the nova-api service.
>
>
> Not really. The ec2 api exposes ec2_style ids instead of uuids. It seems
> better to just provide one view of ids to your users. If you are suggesting
> they use the ec2 api then the uuids may not be needed.
>

I just misread: instead of d), I've read something like

    e) modify horizon to list ec2 images id together with glance uuid

I will try to better explain the issue:

I want my users to be able to customize some of the images already present
on our cloud by creating snapshots. Then, they should be able to use our
software (which uses EC2 api) to run their jobs. Our software is
non-interactive, so I can't print a list from which the user can chose the
correct image, the user must write the id on a configuration file.

I thing d) or e) would be fine, but d) will make our use case hard to apply
to other clouds, while if OpenStack would accept a patch for e) we could be
able to use other clouds as well...

.a.

-- 
antonio.s.messina at gmail.com
GC3: Grid Computing Competence Center
http://www.gc3.uzh.ch/
University of Zurich
Winterthurerstrasse 190
CH-8057 Zurich Switzerland
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