Open Stack

>From: Angus Salkeld <asalkeld at mirantis.com>
>Sent: Wednesday, April 8, 2015 8:24 PM
>To: OpenStack Development Mailing List (not for usage questions)
>Subject: Re: [openstack-dev] [all] how to send messages (and events) to our users
>
>
>I also want to point out that what I'd actually rather see is that all
>of the services provide functionality like this. Users would be served
>by having an event stream from Nova telling them when their instances
>are active, deleted, stopped, started, error, etc.
>
>Also, I really liked Sandy's suggestion to use the notifications on the
>backend, and then funnel them into something that the user can consume.
>The project they have, yagi, for putting them into atom feeds is pretty
>interesting. If we could give people a simple API that says "subscribe
>to Nova/Cinder/Heat/etc. notifications for instance X, and put them
>in an atom feed", that seems like something that would make sense as
>an under-the-cloud service that would be relatively low cost and would
>ultimately reduce load on API servers.
>
>"an under-the-clould service" ? - That is not what I am after here.
>

Yeah, we're using this as an "under cloud" service. Our notifications are only
consumed internally, so it's not a multi-tenant/SaaS solution.

>
>What I am really after is a general OpenStack solution for how end users can
>consume service notifications (and replace "heat event-list").
>
>
>Right now there is "ceilometer event-list", but as some Ceilometer devs have said,
>they don't want to store every notification that comes.
>
>So is the yagi + atom hopper solution something we can point end-users to?
>Is it per-tenant etc...

However, there is a team within Rax working on this SaaS offering:
Peter Kazmir and Joe Savak. I'll let them respond with their lessons on
AtomHopper, etc.

>Sandy, do you have a write up somewhere on how to set this up so I can experiment a bit?

Yagi: https://github.com/rackerlabs/yagi
AtomHopper: http://atomhopper.org/  (java warning)

The StackTach.v3 sandbox is DevStack-for-Notifications. It simulates
notifications (no openstack deploy needed) and it has Yagi set up to
consume them. There's also Vagrant scripts to get you going.

http://www.stacktach.com/install.html
https://github.com/stackforge/stacktach-sandbox

and some, slightly older, screencasts on the Sandbox here:
http://www.stacktach.com/screencasts.html?

We're in the #stacktach channel, by all means ping us if you run into problems.
Or if a Hangout works better for you, just scream :)




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