I\'m having an issue deploying our rails app.. I created a hook like the example on the AWS blog howto http://ruby.awsblog.com/post/Tx2AK2MFX0QHRIO/Deploying-Ruby-Applicatio
After trying the accepted answer, I found that a simpler .ebextensions/ruby.config was the only config that worked:
.ebextensions/ruby.config
packages: yum: git: []