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By removing unused images, I mean here is the extra images in the image store which were supposed to be deleted but they still exist. I want to persist the images that are connected to active instances and base images using which snapshots were created.

-----Original Message-----
From: Razique Mahroua [mailto:razique.mahroua at gmail.com] 
Sent: Donnerstag, 14. November 2013 04:08
To: Narayanan, Krishnaprasad
Cc: openstack at lists.openstack.org
Subject: Re: [Openstack] Removing unused images using Glance APIs

But didn't you wanted to remove the unused images in the first place?
if so, then running the SQL commands I gave you will help you to find unused images :)


On 13 Nov 2013, at 16:43, Narayanan, Krishnaprasad wrote:

> 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