[openstack-dev] [Heat][State-Management] Task/Workflow requirements for Heat

Zane Bitter zbitter at redhat.com
Fri Jun 21 08:19:34 UTC 2013


On 20/06/13 21:34, Joshua Harlow wrote:
> Thanks Adrian for adding that,
>
> Zane, it would be great if you could show up. I have a few questions about
> said heat requirements, especially about how the current mechanism
> accomplishes those requirements.

Sorry for missing that meeting, I left the house right after sending 
that email. Unfortunately (for you ;) I won't be around for the next 
couple of weeks, but let's definitely sync when I get back.

> IMHO I'd rather not have 2 workflow libraries (aka your scheduler.py) and
> taskflow. It would be advantageous I think to focus on one way if we can.
> This would be beneficial to all and if we can merge those ideas into
> taskflow I'm all for it personally. Since one of the possible
> ending-points for taskflow is in oslo, that would seem like a useful merge
> of ideas and code instead of a divergent approach.

+1

I wanted to wait until I had tested it with some more complicated use 
cases before trying to push it outside of Heat. Now that that is done 
and I have a reasonable level of confidence in it, it would be good to 
explore which parts can be rolled into TaskFlow and which can be 
replaced by existing stuff in TaskFlow. Documenting the requirements 
that it is currently satisfying in Heat was the first step in that process.

cheers,
Zane.



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