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And the link to python library :
http://packages.python.org/APScheduler/index.html

Édouard.

On Wed, Nov 7, 2012 at 9:40 AM, Édouard Thuleau <thuleau at gmail.com> wrote:

> Hi Alex,
>
> Yes I think your thoughts seem coincide with my needed.
> My idea was to implement a simple solution to automate the backup images.
> But your solution is more generic and complete.
>
> Just few questions/thoughts:
> - Why did you distinguish 2 bluebrints ? The schedule task mechanism could
> be add to all of Compute API actions (boot, delete, pause, ...). And the
> 'snapshot' action is one of them.
> - If schedule time isn't defines on an API request, the schedule time is
> set to 'NOW'
> - I saw a python library which can help to implement 'cronlike' functions
>
> Regards,
> Édouard.
>
> On Wed, Oct 31, 2012 at 10:01 PM, Alex Meade <alex.meade at rackspace.com>wrote:
>
>> Hey Édouard,
>>
>>
>>
>> My team has put together some ideas on scheduled backups as well.
>>
>>
>>
>> A generic cron service, here:
>>
>> http://wiki.openstack.org/scheduled-task-service
>>
>>
>>
>> and a more robust snapshot scheduling service, here:
>>
>> http://wiki.openstack.org/scheduled-images-service
>>
>>
>>
>> We want to know what everyone else needs out of this feature, these are
>> just some solutions we have thought about.
>>
>>
>>
>> We need something more robust than simple periodic tasks since our cloud
>> will be under heavy load. One example is in both proposals we have the
>> snapshot time being determined by the system and not the user, this is
>> important in a heavy load system since we do not want to handle a heavy
>> load in bursts. However, allowing a user to specify time could always be an
>> option of the deployer.
>>
>>
>>
>> -Alex
>>
>>
>>
>>
>>
>> -----Original Message-----
>> From: "Édouard Thuleau" <edouard.thuleau at gmail.com>
>> Sent: Wednesday, October 31, 2012 7:00am
>> To: josh at jk0.org
>> Cc: "OpenStack Development Mailing List" <
>> openstack-dev at lists.openstack.org>
>> Subject: [openstack-dev] [nova] Automate backup images
>>
>> Hi Josh,
>> I aim to automate backup images of instance.
>>  I saw that you implemented a backup solution to the OpenStack Compute
>> API which uses the snapshot mechanism of OpenStack Nova. It adds backup
>> command with parameters 'backup_type' and 'rotation'. This command permits
>> to define two type of backup (daily and weekly) and the number of backup to
>> keep around.
>> The problem is this mechanism isn't periodically executed by OpenStack.
>> The user must execute himself the backup command to update the backuped
>> images.
>>  I created, few weeks ago, a blueprint to define a simple way to
>> automate this mechanism:
>> https://blueprints.launchpad.net/nova/+spec/backup-schedule
>> Could you send me some comments/feedback on this blueprint ?
>> Regards,
>> Édouard.
>>
>
>
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