[Openstack] [openstack][glance]glance image location

Srujana C P srujana_cp at persistent.co.in
Tue Oct 1 12:17:19 UTC 2013


Hi Stuart,

Thanks for the immediate response.
We need to refer file store for the image content without copying into configured glance image store. So, we would like to specify the source via location  attribute while creating an image. 
Command: glance image-create  --name=<image-name> --is-public=true --container-format=<container-format> --disk-format=qcow2 --location=<some-location> 

We found following are the supported  non-local store types.
1.	S3
2.	Swift
3.	Http
4.	Rbd
5.	Sheepdog
6.	Cinder

But we need to have file as a reference store.  

Regards,
Srujana C P
-----Original Message-----
From: stuart.mclaren at hp.com [mailto:stuart.mclaren at hp.com] 
Sent: Tuesday, October 01, 2013 5:18 PM
To: Srujana C P
Cc: openstack at lists.openstack.org
Subject: Re: [Openstack] [openstack][glance]glance image location

Hi Srujana,

>From looking at the source I think 'file' is disallowed only for image uploads using the mechanisms where you specify either a location or copy_from (ie where you do not include the image bytes in your request). This is to prevent users accessing arbitrary files on the glance server.

For standard image uploads (where you include the image data in the request) the 'file' backend should work as is I think.

-Stuart

On Tue, 1 Oct 2013, Srujana C P wrote:

> Hello All,
>
> We have a requirement wherein we want to access stored images as 
> file:// URIs. However, we have noticed that file:// option has been removed for security reasons. It is mentioned in usr/lib/python2.6/site-packages/glance/api/v1/images.py .
>
> References :
> Line number : 380
> https://github.com/openstack/glance/blob/master/glance/api/v1/images.p
> y
> Launchpad : bug #942118
>
> We are planning to include a configurable parameter in glance.conf and a flag in openstack python code, which enables the usage of file option according to configurable parameter. Can we go ahead with this ?
>
> Thanks,
> Srujana C P
>
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