Our team is migrating to drone.io and had a bit of a tough time getting riak to play nicely since the basho/riak-kv image doesn't listen on localhost. It'd be awesome to get an image that listens on localhost for quick integration testing.
Example of the issue:
https://github.com/genericProgramming/DroneServiceContainerWeirdness
How drone.io service containers work;
http://readme.drone.io/0.5/usage/services/