openstack team mailing list archive

[Sandy Walsh <sandy.walsh@xxxxxxxxxxxxx>]

Look at
https://github.com/rackspace/stacktach/blob/master/worker.py
(ignore the _process() call, just look at how the queue listeners are
set up)

my worker_conf.py looks something like
DEPLOYMENTS = [
    dict(
        tenant_id=1,
        url='http://stacktach.example.com',
        rabbit_host="10.0.0.1",
        rabbit_port=5672,
        rabbit_userid="nova-staging",
        rabbit_password="password",
        rabbit_virtual_host="staging"),
    dict(
        tenant_id=2,
        url='http://stacktach.example.com',
        rabbit_host="10.99.0.1",
        rabbit_port=5672,
        rabbit_userid="nova",
        rabbit_password="password",
        rabbit_virtual_host="production"),
   ]


Or the queue listeners in
https://github.com/Cerberus98/yagi

Hope it helps!
-Sandy


On 03/28/2012 05:27 PM, Leander Bessa wrote:
>>From what i have figured out so far, the exchange queue is "nova" and
> the routing key in your case is "notifications.info
> <http://notifications.info>".
> 
> On Wed, Mar 28, 2012 at 9:05 PM, Rogério Vinhal Nunes
> <rogervn@xxxxxxxxxxx <mailto:rogervn@xxxxxxxxxxx>> wrote:
> 
>     I'm trying to find out information to make an application that
>     consumes the compute info, but I'm having some trouble. Is there a
>     better documentation I could follow and the precise details of the
>     queue/exchange/routing_key needed to take information at the end of
>     each run-instance and terminate-instance?
> 
>     Also, I'm using amqplib and I saw that Openstack uses an internal
>     library named Carrot that uses amqplib. Would it be better to use it
>     instead?
> 
>     Em 27 de março de 2012 12:42, Sandy Walsh <sandy.walsh@xxxxxxxxxxxxx
>     <mailto:sandy.walsh@xxxxxxxxxxxxx>> escreveu:
> 
>         I believe '.exists' is sent via a periodic update in
>         compute.manager.
> 
> 
> 
>         On 03/27/2012 12:08 PM, Leander Bessa wrote:
>         > Hello,
>         >
>         > I've been following this topic and i've been trying to receive the
>         > notifications directly from rabbitmq with python+pika. So i far
>         > i've managed to receive the start/terminate events and
>         everything in
>         > between. What i am unable to find though is the topic regarding
>         > _compute.instance.exists_
>         > from http://wiki.openstack.org/SystemUsageData. Does this even
>         exist, or
>         > is there some extra configuration required with nova?
>         >
>         > Regards,
>         >
>         > Leander
>         >
>         > On Mon, Mar 26, 2012 at 4:54 PM, Russell Bryant
>         <rbryant@xxxxxxxxxx <mailto:rbryant@xxxxxxxxxx>
>         > <mailto:rbryant@xxxxxxxxxx <mailto:rbryant@xxxxxxxxxx>>> wrote:
>         >
>         >     -----BEGIN PGP SIGNED MESSAGE-----
>         >     Hash: SHA1
>         >
>         >     On 03/26/2012 11:48 AM, Russell Bryant wrote:
>         >     > 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
>         >     >
>         >
>         >     That wasn't the page I thought it was ... I meant:
>         >
>         >        http://wiki.openstack.org/SystemUsageData
>         >
>         >     You can consume these events via AMQP if you configure
>         nova to use the
>         >     rabbit notifier.
>         >
>         >     - --
>         >     Russell Bryant
>         >     -----BEGIN PGP SIGNATURE-----
>         >     Version: GnuPG v1.4.12 (GNU/Linux)
>         >     Comment: Using GnuPG with Mozilla -
>         http://enigmail.mozdev.org/
>         >
>         >    
>         iEYEARECAAYFAk9wkSgACgkQFg9ft4s9SAYFuACfUu23qtxiH6WLCJNyd9gBf8i1
>         >     FwQAnifjwWkFHYxo+KhYt8TAWEzTaMYZ
>         >     =UWlH
>         >     -----END PGP SIGNATURE-----
>         >
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