Codeship is a hosted Continuous Delivery Service that just works.
Set up Continuous Integration in a few steps and automatically deploy when all your tests have passed. Integrate with GitHub and BitBucket and deploy to cloud services like Heroku and AWS, or your own servers.
Visit http://codeship.io/ruby5 and sign up for free. Use discount code RUBY5 for a 20% discount on any plan for 3 months.
Also check out the Codeship Blog!