I've only found OpenRuko two days ago and I tried to deploy a hello world PlayFramework application(from play samples,
repository here). Had some issues with java and deploy time in general(9-10 minutes). I'll try to look into buildback for Play because it stalls for a few minutes on two points. But my main issue was connecting to the damn thing. At first I thought it didn't even deploy correctly. Then I tried the node.js sample which specifies port in code and that gave me a hint.
ps aux | grep java
found the process and the port it was run with. and curl-ing localhost with said port returned the right html. Success. Given no official documentation I'll address my question here: is there currently no routing mesh in openruko?