On 03/26/2012 10:15 AM, Rogério Vinhal Nunes wrote:
> Hello,
>
> I'm developing a application to work along with openstack. My
> application needs to keep track of all instances being started or
> terminated such as feeding it information about the location, status and
> other information about launched and terminated instances. The current
> version makes timed queries to OpenStack database, but this is showing
> to be a little consuming and inefficient, so I would like to add a
> portion of code to make OpenStack actively feed my application
> information whenever an instance changes its status or location.
>
> What is the least intrusive way to do that? It would be very nice if
> OpenStack provided a way to run code on these situations without
> actually changing any code, such as defining a directory of scripts to
> run in every instance status change.
Check out the notifications system:
http://wiki.openstack.org/NotificationSystem
--
Russell Bryant
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