[Hawkular-dev] Hawkular image and the docker hub registry

[Matt Wringe]

There are a few images we should push out under the 'hawkular' 
organization account on docker hub:

- hawkular-metrics
- hawkular-cassandra
- hawkular-heapster*

*: only until https://github.com/GoogleCloudPlatform/heapster/pull/284 
is closed

If there are no objections, I will create those images soon under the 
'hawkular' account.

Initially, it will probably set it up as an automated docker hub build 
(since we can get it up and running very quickly). But we should really 
change it so that we build the images ourselves as part of the CI build 
and push the images out to docker hub. This will keep things more inline 
with that the kubernetes application will be expecting and prevent us 
from manually having to update the docker configurations when the 
versions change.

I have no idea how our current CI works, so if someone could help me 
here that we would be great. I am assuming building the docker images 
there will be a simple task.

Thanks,

Matt Wringe