#!/bin/bash
# Inspired by http://blog.fiveruns.com/2008/9/24/rails-automation-at-slicehost
#
# This is a fork of: http://gist.github.com/16225
#
# To it I've added:
#  - Installation of the MySQL gem which is no longer included with Rails
#  - A switch from Passenger 2.0.3 (specified in the original script) to 2.0.6
#  - Explanatory text at the end of the script to help the user understand
#    what to do next.

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-1.3.1"
wget http://rubyforge.org/frs/download.php/45905/$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=2.0.6 passenger --no-rdoc --no-ri 
apt-get -y install apache2-mpm-prefork apache2-prefork-dev
yes '' | passenger-install-apache2-module 

# Install MySQL gem (no longer bundled w/ Rails)
/usr/bin/gem1.8 install mysql

# 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 <<-EOF
LoadModule passenger_module /usr/lib/ruby/gems/1.8/gems/passenger-2.0.6/ext/apac
he2/mod_passenger.so
EOF

cat >> /etc/apache2/mods-available/passenger.conf <<-EOF
<IfModule passenger_module>
  PassengerRoot /usr/lib/ruby/gems/1.8/gems/passenger-2.0.6
  PassengerRuby /opt/ruby-enterprise-1.8.6-20080810/bin/ruby
</IfModule>
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
<VirtualHost $IP_ADDRESS:80>
      ServerName www.yourhost.com
      DocumentRoot /var/www/hello/public
</VirtualHost>
EOF
a2ensite hello

# Instruct the user where to go from here.
echo "Setup appears to be complete, but it isn't quite finished yet."
echo ""
echo "The example site was created in /var/www/hello. Edit the database.yml"
echo "file in the /var/www/hello/config directory to have the password you"
echo "assigned to the root account for MySQL. Then run the command"
echo "rake db:create:all to create the databases needed for the example site."
echo "After that you can point your browser at $IPADDRESS/welcome/hello to"
echo "see a sample page."

read -p "Hit <return> or <enter> to reboot"

# That's it!
reboot