Open Stack

This email is loosely related to the recent thread of docker, puppet, 
and Heat here:
http://lists.openstack.org/pipermail/openstack-dev/2015-August/071492.html

I'd really like to get some feedback about work done to use Heat for 
deploying Kolla containers. Ultimately, the hope is to use this work for 
usage in tripleO. Here is an example of what the undercloud could look 
like [1]. The repo is currently messy and out of date, but illustrates 
bootstrapping Heat directly on a host with nothing installed except 
Docker. The idea was to utilize Kolla containers without any changes 
(and was also developed before the config external functionality came 
along).

A very incomplete template example for the undercloud 
(deploy-undercloud.yaml) exists in the heat-standalone directory.  
However, I've been struggling with the perceived template simplicity vs 
supportability due to the usage of the Heat docker driver.

A very similar approach of a containerized overcloud [2] was attempted 
on master [3] for the undercloud. My understanding was that it still has 
a problem with the os-*-config tools signaling back to Heat. I apologize 
I can't elaborate further on that. Note that is has been a primary 
objective to not use Nova for deploying containerized services (with 
both approaches) and I believe that contributed to the signaling problem 
mentioned before.

Thoughts on the above would be most welcome. Instead of further 
developing on something that ultimately goes nowhere, I'd rather consult 
the tripleO experts! Since there has been some contention for usage of 
the Heat docker driver, please also evaluate the Heat fat container for 
deployment usage.

Apologies in advance if any of this is unclear.

Jeff

[1] 
https://github.com/jpeeler/kolla/tree/694df62d47cf6d930bf04231386c917f5cb4da58$
[2] https://review.openstack.org/#/c/178840/
[3] https://github.com/jpeeler/kolla/commits/master$