Rails setup in linode

1. Login to linode
2. choose linux distribution (ubuntu)
3. allocate disk space and swap
4. boot
5. remote access using ssh
6. apt-get update
   apt-get upgrade --show-upgraded
7. set hostname:
   echo "ayahirano" > /etc/hostname
   hostname -F /etc/hostname
8. nano /etc/hosts
   127.0.0.1 localhost.localdomain localhost
   12.34.56.78 ayahirano.invalid  hirano
   2600:3c01::a123:b456:c789:d012 ayahirano.invalid hirano
9. set timezone to UTC:
   dpkg-reconfigure tzdata
10. install required libs:
    apt-get install build-essential zlib1g-dev libssl-dev libreadline6-dev libxslt1-dev libcurl4-openssl-dev apache2-mpm-prefork apache2-prefork-dev libapr1-dev libaprutil1-dev git-core
11. install require lib for postgresql (optional):
    apt-get install postgresql postgresql-contrib libpq-dev
12. create new user:
    adduser example_user
    usermod -a -G sudo example_user
    
13. logout and relogin user the new user
14. disable root login:
    sudo nano /etc/ssh/sshd_config
    PermitRootLogin no
    
15. setup postgresql (optional):
    sudo -u postgres createuser --superuser example
    sudo -u postgres psql postgres
    \password example
    \q
    sudo nano /etc/postgresql/8.4/main/postgresql.conf:
    listen_addresses = 'localhost'
    sudo nano /etc/postgresql/8.4/main/pg_hba.conf:
    local       all        all                      md5
    sudo /etc/init.d/postgresql start
    
16. install rvm:
    \curl -L https://get.rvm.io | bash -s stable
    source /home/example_user/.rvm/scripts/rvm
    
17. install ruby:
    rvm install ruby
18. disable gem documentation installation:
    nano ~/.gemrc
gem: --no-ri --no-rdoc

19. install passenger:
    gem install passenger
    rvmsudo passenger-install-apache2-module
    
20. get your app to /var/www/example
21. disable default virtual host:
    sudo a2dissite default
22. create new virtual host config:
    sudo nano /etc/apache2/sites-available/example
<VirtualHost *:80>
  ServerName ayahirano.invalid
  ServerAlias *.ayahirano.invalid  RailsEnv production
  DocumentRoot /var/www/example/public
  <Directory /var/www/example/public>
    AllowOverride all
    # MultiViews must be turned off.
    Options -MultiViews
  </Directory>
</VirtualHost>
23. enable it:
    sudo a2ensite example

24. edit apache configuration file:
    sudo nano /etc/apache2/mods-available/passenger.load
    LoadModule passenger_module /home/rails/.rvm/gems/ruby-1.9.3-p286/gems/passenger-3.0.17/ext/apache2/mod_passenger.so
    sudo nano /etc/apache2/mods-available/passenger.conf
    PassengerRoot /home/rails/.rvm/gems/ruby-1.9.3-p286/gems/passenger-3.0.17
    PassengerRuby /home/rails/.rvm/wrappers/ruby-1.9.3-p286/ruby
25. enable passenger module:
    sudo a2enmod passenger
26. restart apache:
    sudo service apache2 restart
    

Extras

Installing nodejs for js runtime (needed by assets precompile):

https://github.com/joyent/node/wiki/Installing-Node.js-via-package-manager

Creating deploy script

1. cd $HOME
2. nano deploy.sh
3. #!/bin/sh
   sudo echo -n "precompile assets? (y or n) : "
   read precompile
   echo -n "bundle install? (y or n) : "
   read bundler
   cd /var/www/example
   git pull
   if [ $bundler = y -o $bundler = Y -o $bundler = yes -o $bundler = Yes -o $bundler = YES ]; then
     bundle install --without development test
   fi
   if [ $precompile = y -o $precompile = Y -o $precompile = yes -o $precompile = Yes -o $precompile = YES ]; then
     bundle exec rake assets:precompile RAILS_ENV=production
   fi
   rake db:migrate RAILS_ENV=production
   # any other thing you do when deploying...
   sudo service apache2 restart
4. chmod 700 deploy.sh
5. Done.. To run use: ./deploy.sh