[Openstack] Removing unused images using Glance APIs

Narayanan, Krishnaprasad narayana at uni-mainz.de
Thu Nov 14 00:43:54 UTC 2013


If I want to retain the base image for launching new VMs, then I may lose them. So how do I retain it?

-----Original Message-----
From: Razique Mahroua [mailto:razique.mahroua at gmail.com] 
Sent: Donnerstag, 14. November 2013 01:16
To: Narayanan, Krishnaprasad
Cc: openstack at lists.openstack.org
Subject: Re: [Openstack] Removing unused images using Glance APIs

Same :)
as long as the snapshot is created (make sure it's finished though!) then you don't need the base image


On 13 Nov 2013, at 16:15, Narayanan, Krishnaprasad wrote:

> What happens if there is an snaspshot created but there are no 
> instances launched?
>
> From: Razique Mahroua [mailto:razique.mahroua at gmail.com]
> Sent: Donnerstag, 14. November 2013 01:11
> To: Narayanan, Krishnaprasad
> Cc: openstack at lists.openstack.org
> Subject: Re: [Openstack] Removing unused images using Glance APIs
>
>
> Volumes snap depends on the active instance, that means you don't need 
> the base image afterwards.
> Just check all actives instances
> select * from instances where deleted <> 1
> OR :
> select image_id from instances where deleted = 0
>
> Razique
>
> On 13 Nov 2013, at 15:47, Narayanan, Krishnaprasad wrote:
>
> Hi
>
> If I understand it correctly, this addresses the active instances and 
> its images. Can I know how one should take care of instance and volume 
> snapshots?
>
> Thanks,
> Krishnaprasad
> From: Razique Mahroua 
> [mailto:razique.mahroua at gmail.com<mailto:razique.mahroua at gmail.com>]
> Sent: Mittwoch, 13. November 2013 14:40
> To: Narayanan, Krishnaprasad
> Cc: 
> openstack at lists.openstack.org<mailto:openstack at lists.openstack.org>
> Subject: Re: [Openstack] Removing unused images using Glance APIs
>
> Hi. I think there is not any API for that unfortunately....
> But there is a field into the database that indicates the image ID. So 
> if you select all active instances and select the unique images ID 
> entries, you can compare them against the Glance images. A BASH script 
> should be sufficient.
>
> Razique
>
> On Wednesday, November 13, 2013, Narayanan, Krishnaprasad wrote:
> Hallo All,
>
> In our testbed we have Openstack ESSEX. I am in the process of 
> cleaning up the image store. Can I know are there any APIs in Glance 
> or Nova that can help me in this process?
>
> Thanks,
> Krishnaprasad




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