installs rbenv via rbenv-installer, ruby matching $ruby_version and passenger + apache2 module to $user home and updates $user/.bash_profile w/ rbenv env vars

ansible-ubuntu-ruby-playbook.yml

---
- name: install rb-installer
  action: shell curl https://raw.github.com/fesplugas/rbenv-installer/master/bin/rbenv-installer | bash
 
- name: update PATH in ~/.bash_profile for rb-env
  action: lineinfile dest=/home/$user/.bash_profile line=export\ PATH="$HOME/.rbenv/bin:$PATH" regexp=PATH.*rbenv
 
- name: add rb-env init to ~/.bash_profile
  action: lineinfile dest=/home/$user/.bash_profile line='eval "$(rbenv init -)"' regexp=eval.*rbenv
 
- name: install ruby
  action: shell /home/$user/.rbenv/bin/rbenv install $ruby_version creates=/home/$user/.rbenv/shims/ruby
 
- name: make ruby global
  action: shell /home/$user/.rbenv/bin/rbenv global $ruby_version
 
- name: bootstrap any missing packages
  action: shell /home/$user/.rbenv/bin/rbenv bootstrap-ubuntu-12-04
 
- name: bootstrap rbenv
  action: shell /home/$user/.rbenv/bin/rbenv bootstrap
 
- name: install passenger
  action: shell PATH=/home/$user/.rbenv/bin:$PATH /home/$user/.rbenv/shims/gem install passenger creates=/home/$user/.rbenv/shims/passenger
 
- name: initialize rbenv
  action: shell bash /home/$user/.bash_profile
 
- name: install passenger apache2 module
  action: shell PATH=/home/$user/.rbenv/bin:$PATH /home/$user/.rbenv/shims/passenger-install-apache2-module --auto creates=/home/$user/.rbenv/versions/$ruby_version/lib/ruby/gems/1.9.1/gems/passenger-$passenger_version/ext/apache2/mod_passenger.so