Base Ruby 1.9.3p545 container for octohost.
To use an already built container:
docker pull octohost/ruby-1.9.3p545
Or you can build it from this source:
docker build -t your-organization/ruby-1.9.3p545
NOTE: You can always get the most current ruby 1.9 container this way:
docker pull octohost/ruby-1.9