Automatic Rails on Ubuntu 8.04 LTS

enjoyingrails — Thu, 16 Oct 2008 20:32:11 +0000

A couple of weeks ago there was a post on the FiveRuns blog about automatically installing the Rails stack on an Ubuntu 8.04 VPS.

I prefer to use Passenger and Ruby Enterprise Edition when running my Rails app, so inspired by the FiveRuns script I wrote my own version – here is the gist on github.

#!/bin/bash # Inspired by http://blog.fiveruns.com/2008/9/24/rails-automation-at-slicehost


apt-get update

apt-get upgrade -y

apt-get -y install build-essential libssl-dev libreadline5-dev zlib1g-dev

apt-get -y install mysql-server libmysqlclient15-dev mysql-client

apt-get -y install ruby ruby1.8-dev irb ri rdoc libopenssl-ruby1.8 
RUBYGEMS="rubygems-1.3.0"

wget http://rubyforge.org/frs/download.php/43985/$RUBYGEMS.tgz

tar xzf $RUBYGEMS.tgz

cd $RUBYGEMS

ruby setup.rb

cd ..
# Install Ruby Enterprise Edition

wget http://rubyforge.org/frs/download.php/41040/ruby-enterprise-1.8.6-20080810.tar.gz

tar xvzf ruby-enterprise-1.8.6-20080810.tar.gz

yes '' | ./ruby-enterprise-1.8.6-20080810/installer
# Install Passenger

/usr/bin/gem1.8 install -v=2.0.3 passenger --no-rdoc --no-ri

apt-get -y install apache2-mpm-prefork apache2-prefork-dev

yes '' | passenger-install-apache2-module 
# Create sample Rails app

/usr/bin/gem1.8 install rails --no-rdoc --no-ri

cd /var/www

rails -d mysql hello

cd hello

./script/generate controller welcome hello

echo "Hello World" > app/views/welcome/hello.html.erb

rake db:create RAILS_ENV=production
# Create the Apache2 Passenger module files

cat >> /etc/apache2/mods-available/passenger.load <> /etc/apache2/mods-available/passenger.conf <<-EOF
  PassengerRoot /usr/lib/ruby/gems/1.8/gems/passenger-2.0.3

  PassengerRuby /opt/ruby-enterprise-1.8.6-20080810/bin/ruby
EOF

a2enmod passenger
# Create a site file for the sample Rails app

IP_ADDRESS=`ifconfig eth0 | sed -n 's/.*dr:\(.*\)  Bc.*/\1/p'`

cat >> /etc/apache2/sites-available/hello <<-EOF
      ServerName www.yourhost.com

      DocumentRoot /var/www/hello/public
EOF

a2ensite hello

# That's it! reboot

The script assumes that you have ssh access as root to a clean Ubuntu 8.04 install.

The script will install

Ruby 1.8.6
RubyGems 1.3.0
Passenger 2.0.3
Ruby Enterprise Edition 20080810
Apache 2.2.8
MySQL 5.0.51a
A sample Rails app

Note that the Passenger installer will install the latest Rails (2.1.1) and a bunch of other useful gems.

Assuming that your server IP address is 192.168.185.128 you can run it like this:
ssh root@192.168.185.128 "wget -O - http://gist.github.com/raw/16225/a6a16b3a38cd3486679b96fa0f3446e58f3b8423 | sed -e s/$'\r'//g > install.sh; /bin/bash install.sh; rm install.sh"
Sit back and enjoy – in less than ten minutes you will have the full Rails stack and a sample Rails app running. Take a look at it on http://192.168.185.128/welcome/hello

Enjoying Rails » passenger

Automatic Rails on Ubuntu 8.04 LTS