[openstack-dev] Openstack Service requirement

Ravi Chunduru ravivsn at gmail.com
Thu Aug 1 15:22:09 UTC 2013


Monty,
 I had a quick look on ceilometer, it looks one place to get all
notifications.
I will deploy and try it out.

Thanks,
-Ravi.

On Wed, Jul 31, 2013 at 10:34 PM, Monty Taylor <mordred at inaugust.com> wrote:

> 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
> >
> >
> >
> > _______________________________________________
> > OpenStack-dev mailing list
> > OpenStack-dev at lists.openstack.org
> > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
> >
>
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>



-- 
Ravi
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