How can I specify a gem to pull from a private github repository?

Question

I have a private repository on Github that I want to use. I deploy my app to Heroku. How can I specify a private repository as the source on my gemfile? I imagine it wouldn\

Answer 1

Hopefully still relevant in 2015, you can use https://github.com/siassaj/heroku-buildpack-git-deploy-keys with a deploy key from github.

This way you avoid putting the username and pass into Gemfile, which will end up as plain text in the Gemfile.lock