Works with Play 2.2 : http://www.playframework.com/
In OpenShift, choose a downloaded cartridge, with the following URL : http://cartreflect-claytondev.rhcloud.com/reflect?github=tyrcho/openshift-cartridge-play2
You need to wait about 5 min after installing the cartridge so the application is built. Otherwise you get an error 503 !
Note : now works with small OpenShift gears, the build script will use no more than 512MB by default.
You need to have installed play2 on your development workstation.
Simply launch play run from your invite, and browse to http://localhost:9000/ to see the welcome page.