Open Stack

Also, if you're wanting to buld services on top of OpenStack that want
to respond to events - you probably want to look in to ceilometer, which
has an interface to export such events to you.

On 08/01/2013 01:02 AM, Addepalli Srini-B22160 wrote:
> RPC  will send the notifications to the queues that have joined the
> exchanges.
> 
>  
> 
> Any notifications that were published before your service registers are
> not seen by your service.
> 
>  
> 
> Your service needs to get hold of the data using Nova and Neutron API.
> 
>  
> 
> In summary,  when your service comes up,  in addition to registering for
> notifications,  it is needed to get the existing data using
> Nova/Neutrion API.  
> 
>  
> 
> Thanks
> 
> SRini
> 
>  
> 
> *From:*Ravi Chunduru [mailto:ravivsn at gmail.com]
> *Sent:* Wednesday, July 31, 2013 10:57 AM
> *To:* OpenStack Development Mailing List
> *Subject:* Re: [openstack-dev] Openstack Service requirement
> 
>  
> 
> Hi,
> 
>  Could any one respond on this? This helps us in designing services
> written on top of openstack.
> 
>  
> 
> Thanks,
> 
> -Ravi.
> 
> On Tue, Jul 30, 2013 at 7:38 PM, Ravi Chunduru <ravivsn at gmail.com
> <mailto:ravivsn at gmail.com>> wrote:
> 
> Hi,
> 
>  I was designing a Openstack service that listens on notifications
> generated from Nova, Neutron etc., for our custom needs to monitor and
> act up on events.
> 
> I have an interesting observation from openstack perspective and I would
> like to know community thinking about it.
> 
>  
> 
> By the time an openstack service starts, it would have missed some
> notifications.  How do we deal with it?
> 
>  
> 
> For example, Designate(DNSaaS) starts and by that time some VMs got
> created, it would loose to update the DNS servers for those VMs.
> 
> Should any openstack service such as Designate  call openstack APIs and
> get existing configuration?
> 
>  
> 
> Thanks,
> 
> -- 
> Ravi
> 
> 
> 
>  
> 
> -- 
> Ravi
> 
> 
> 
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