openstack team mailing list archive

[Leander Bessa <leanderbb@xxxxxxxxx>]

>From what i have figured out so far, the exchange queue is "nova" and the
routing key in your case is "notifications.info".

On Wed, Mar 28, 2012 at 9:05 PM, Rogério Vinhal Nunes
<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>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>> 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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