Ubuntu setup for Ruby, Nginx, Postgres 9, Rails

setup.sh

#!/bin/bash

# install dependencies
apt-get update && apt-get upgrade
apt-get install build-essential bison openssl libreadline6 libreadline6-dev curl git-core zlib1g zlib1g-dev libssl-dev libyaml-dev libsqlite3-0 libsqlite3-dev sqlite3 libxml2-dev libxslt-dev autoconf libc6-dev ncurses-dev

# install RVM
bash < <(curl -s https://rvm.beginrescueend.com/install/rvm)

### as per RVM instructions (both files)
nano ~/.bashrc
nano /etc/skel/.bashrc
#
# comment out:
#  [ -z "$PS1" ] && return
#
# add:
#  if [[ -n "$PS1" ]] ; then
#    ...
# fi
#
# add to EOF:
# fi
# if groups | grep -q rvm ; then
#   source "/usr/local/lib/rvm"
# fi
###

# install ruby 1.9.2 p180 and set as default
rvm install 1.9.2
rvm use 1.9.2 --default

# install nginx + passenger
rvm gem install passenger
apt-get install libcurl4-openssl-dev
passenger-install-nginx-module

# install nginx as a service
git clone git://github.com/jnstq/rails-nginx-passenger-ubuntu.git
sudo mv rails-nginx-passenger-ubuntu/nginx/nginx /etc/init.d/nginx
sudo chown root:root /etc/init.d/nginx
chmod +x /etc/init.d/nginx
/usr/sbin/update-rc.d -f nginx defaults

##
# configure nginx
nano /opt/nginx/conf/nginx.conf
#
# add 
# user www-data;
# worker_processes 4;
#
# include /opt/nginx/conf/sites-enabled/*;
##

mkdir /opt/nginx/conf/sites-enabled
mkdir /opt/nginx/conf/sites-available

# create nginx configuration files in /opt/nginx/conf/sites-available as needed

# link into sites-enabled (replace mysite with desired website name)
ln -s /opt/nginx/conf/sites-available/mysite.com /opt/nginx/conf/sites-enabled/mysite.com

# install postgresql 9.0
apt-get install python-software-properties
add-apt-repository ppa:pitti/postgresql
apt-get update
apt-get install postgresql-9.0 libpq-dev
passwd postgres
# supply password x2

su -l postgres
# psql 
#>> ALTER USER postgres WITH PASSWORD 'sekret';
#>> CREATE ROLE mysite LOGIN CREATEDB;
#>> \q

##
nano /etc/postgresql/9.0/main/pg_hba.conf
# locate 'local   all   all   ident' and change to 'local   all   all   md5'
#
##

# restart pg
/etc/init.d/postgresql restart

# install gem dependencies
rvm gem install bundler rails pg

# create location for website files
mkdir /var/www
chown www-data /var/www

# copy rails app to /var/www/mysite 
# [fix up permissions `chown www-data /var/www/mysite -R`]

#
# cd into rails app /var/www/mysite
# bundle exec rake db:create db:migrate db:seed RAILS_ENV="production" 
#