i just now (after 5 hours of struggling) deployed a Rack-based ruby app on Red Hat Cloud. quite hard for me as a beginner.

http://myapp-sdil.rhcloud.com/kaka - actually, the hello world application.

http://myapp-sdil.rhcloud.com/farah_izzati - friend of mine. built using Markdown (rdiscount)

everything was done in command line and i proud of it ^^