Installing Ruby 1.9, Apache2, Rails, and Phusion Passenger on new Ubuntu EC2 Instance

Here's the step by step for getting Ruby on Rails running on a sparkling fresh new Amazon EC2 Instance.

1) Launch EC2 Instance

I won't explain this, but pick the latest Ubuntu AMI. The rest of this assumes you're ssh'd into the new isntance.

2) Install Ruby 1.9

Update: This link is better and will stay more up to date for installing ruby.

• apt-get update
• apt-get upgrade
• apt-get install zlibc zlib-bin zlib1g zlib1g-dbg zlib1g-dev libopenssl-ruby1.9 libssl-dev subversion git-core apache2 apache2-prefork-dev libapr1-dev
• Install ruby
• download ruby 1.9 from: http://www.ruby-lang.org/en/downloads/
• tar -zxvf ruby1.9....tgz
• cd ruby1.9....
• ./configure && make && make install
• ruby -v
• to check that installed properly
• cd ext/openssl
• ruby extconf.rb && make && make install
• This installs openssl support for ruby

3) Now get Rails up and running

• gem sources -a http://gems.github.com
• gem install rails sqlite3-ruby passenger
• passenger-install-apache2-module
• follow instructions
• it will give you a few lines you have to add to: /etc/apache2/apache2.conf (bottom is fine)
• Get your Rails app on server somewhere
• If you have an existing app, upload it to the server (eg: /home/myapp would work fine)
• Now if you don't have a rails app ready to go, lets quickly make one
• cd /home
• rails first_rails
• nano -w /etc/apache2/sites-available/first_rails
• Assuming you have some.domain.com pointed to the server (this can replace the Apache default site as well):
  
  
  
  • 
    
    ServerName www.yourhost.com # delete this line if replacing root
    DocumentRoot /home/rails/public
    Allow from all
    # RailsEnv development
    RailsDefaultUser root
    
    
  
  
• a2ensite first_rails
• adds site to sites-enabled
• /etc/init.d/apache2 reload

That's it.

If you want your app under a sub directory of a different virtual host, see the instructions here:http://www.modrails.com/documentation/Users%20guide.html#_deploying_a_ruby_on_rails_application

Troubleshooting

• If you get: no such file to load rbconfig.rb
• be sure all 1.8 stuff is removed
• apt-get remove libruby1.8 rubygems

And lastly, get the latest awesome gems for web development:

gem install uuidtools appoxy-aws right_http_connection appoxy-simple_record appoxy-local_cache quetzall-cloud_cache

And you should probably setup logrotate to keep your log files under control, but that will come in another post.