[Hawkular-dev] Cassandra Cluster with docker.

[Ruben Vargas Palma]

I was testing a little bit with Hawkular-Services + Cassandra cluster 
using docker containers, I created a GitHub repository with my setup:

https://github.com/rubenvp8510/hwk-cassandra-docker

It seems to work fine, at least on my environment, I did some different 
tests but I couldn't test more than 3 nodes on my machine, but hopefully 
it will work for N nodes.


Some issues I found:

   - Sometimes hawkular throws a timeout exception "Cassandra timeout 
during read query at consistency LOCAL_ONE", I only managed to reproduce 
it 2 times.

   - This setup is not enough robust because the Keyspace has replica 
factor of 1, so if one node dies hawkular-services started complain 
about it.


Regards