Open Stack

On 07/03/14 05:05, Hiroyuki Eguchi wrote:
> I'm envisioning a stored userdata feature.
> < https://blueprints.launchpad.net/nova/+spec/stored-userdata >
>
> Currently, OpenStack allow user to execute script or send configuration file
> when creating a instance by using --user-data /path/to/filename option.
>
> But,In order to use this option, All users must input userdata every time.
> So we need to store the userdata in database so that users can manage userdata more easily.
>
> I'm planning to develop these Nova-APIs.
>   - nova userdata-create
>   - nova userdata-update
>   - nova userdata-delete
>   - nova userdata-show
>   - nova userdata-list
>
> Users can specify a userdata_name managed by Nova DB or /path/to/filename in --user-data option.
>
>   - nova boot --user-data <userdata_name or /path/to/filename> ...
>
>
> If you have any comments or suggestion, please let me know.
> And please let me know if there's any discussion about this.

In general, I think userdata should be WORM.  It certainly is in every 
other cloud setup I am familiar with.  This is the information fed to 
the instance when it boots the first time - having userdata change over 
time means you lose access to the original when you want to go back and 
retrieve it.

I think this would be a regression, and be unexpected behavior.

Cheers,
-- 
Stephen Gran
Senior Systems Integrator - theguardian.com
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