It might seem strange to deploy or manage Ruby applications with a Python based tool, but with Fabric you can easily setup a Ruby enviroment. To install RVM (assuming you have curl and the build tools installed for your distro) you can install RVM with the following command:

  def install_rvm():
      # Install the Ruby Version Manager, along with the current stable version of Ruby
      # Install the bundler gem
      run('gpg --keyserver hkp:// --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3')
      run('curl -sSL | bash -s stable')
      run('rvm install 2.3.1')
      run('rvm use 2.3.1 && gem install bundler')

After that, you can use Fabric’s context managers to start using that version of Ruby:

  def install_some_gem():
      with run('rvm use 2.3.1'):
      	   run('gem install sinatra')