adduser deploy
ssh-copy-id -i ~/.ssh/deploy.pub deploy@example.com

Install rbenv

aptitude install git

git clone https://github.com/sstephenson/rbenv.git /usr/local/rbenv

vim /etc/profile.d/rbenv.sh

# rbenv setup
export RBENV_ROOT=/usr/local/rbenv
export PATH="$RBENV_ROOT/bin:$PATH"
eval "$(rbenv init -)"

chmod +x /etc/profile.d/rbenv.sh

Exit and login again

Install ruby-build

mkdir /usr/local/rbenv/plugins

git clone https://github.com/sstephenson/ruby-build.git /usr/local/rbenv/plugins/ruby-build

Install ruby

https://github.com/fesplugas/rbenv-bootstrap/blob/master/bin/rbenv-bootstrap-ubuntu-12-04

apt-get update
apt-get -y install build-essential tklib zlib1g-dev libssl-dev libreadline-gplv2-dev libxml2 libxml2-dev libxslt1-dev
apt-get -y install libcurl4-openssl-dev libpcre3-dev

rbenv install 2.1.0
rbenv global 2.1.0
rbenv rehash
ruby -v

gem install bundler
gem install passenger

Install nginx + passenger

cd /tmp && wget http://nginx.org/download/nginx-1.4.4.tar.gz
tar zxvf nginx-1.4.4.tar.gz && cd nginx-1.4.4

./configure \
--sbin-path=/usr/local/sbin \
--conf-path=/etc/nginx/nginx.conf \
--pid-path=/var/run/nginx.pid \
--lock-path=/var/lock/nginx.lock \
--error-log-path=/var/log/nginx/error.log \
--http-log-path=/var/log/nginx/access.log \
--http-client-body-temp-path=/var/lib/nginx/body \
--http-proxy-temp-path=/var/lib/nginx/proxy \
--http-fastcgi-temp-path=/var/lib/nginx/fastcgi \
--http-uwsgi-temp-path=/var/lib/nginx/uwsgi \
--user=deploy --group=deploy \
--with-http_ssl_module \
--with-http_realip_module \
--with-http_gzip_static_module \
--with-http_stub_status_module \
--with-http_dav_module \
--with-http_flv_module \
--with-sha1=/usr/lib \
--add-module=`passenger-config --root`/ext/nginx

mkdir /var/lib/nginx
make && make install

Config nginx

http {
    passenger_root /usr/local/rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/passenger-4.0.33;
    passenger_ruby /usr/local/rbenv/shims/ruby;
    passenger_pool_idle_time 0;
    
    client_max_body_size    25m;
    server_tokens           off;
    sendfile                on;
    keepalive_timeout       70;
 
    gzip                    on;
    gzip_http_version       1.1;
    gzip_disable            "msie6";
    gzip_vary               on;
    gzip_min_length         1100;
    gzip_buffers            64 8k;
    gzip_comp_level         3;
    gzip_proxied            any;
    gzip_types              text/plain text/css application/x-javascript text/xml application/xml;  
}

Install MySQL

aptitude install mysql-server mysql-client libmysqlclient-dev
vim /etc/mysql/my.cnf

[client]
default-character-set=utf8

[mysql]
default-character-set=utf8


[mysqld]
collation-server = utf8_unicode_ci
init-connect='SET NAMES utf8'
character-set-server = utf8

service mysql restart

mysql -uroot -p
GRANT ALL PRIVILEGES ON  `%\_staging` . * TO  'staging'@'localhost' IDENTIFIED BY  '***';
GRANT ALL PRIVILEGES ON  `%\_production` . * TO  'production'@'localhost' IDENTIFIED BY  '***';

Application

server {
    listen       80;
    server_name  example.com www.example.com;
    root   /var/www/example.com/public;
    passenger_enabled on;
    index  index.html;
    
    charset  utf-8;
    
    access_log  /dev/null;
    error_log   /dev/null;
    
    error_page  404 /404.html;
    error_page  500 502 503 504 /50x.html;
}