This is neat. At Bazaarvoice (my current employer), we built a Ruby DSL specifically for CloudFormation (AWS) several years ago. It looks and works similarly. We open sourced it and have been using it in production for a couple years now. you can check it out at <a href="http:&#x2F;&#x2F;github.com&#x2F;bazaarvoice&#x2F;CloudFormation-ruby-dsl" rel="nofollow">http:&#x2F;&#x2F;github.com&#x2F;bazaarvoice&#x2F;CloudFormation-ruby-dsl</a>