1yum -y update
2
3# This command will update all the base applications
4# that come with CentOS by default. Which are mostly
5# reserved for use by the operating system.

1yum groupinstall -y 'development tools'
2
3# With more recent versions of CentOS, such as 6.5 in our case,
4# you can simply run:
5# yum groupinstall -y development
6# instead.
7
8# This bundle of applications contains various tools
9# Such as: gcc, make, automake, binutils, git etc.

1# Enable EPEL Repository
2sudo su -c 'rpm -Uvh http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm'
3
4# Update everything, once more.
5yum -y update

1yum install -y curl-devel nano sqlite-devel libyaml-devel

1curl -L get.rvm.io | bash -s stable
2source /etc/profile.d/rvm.sh

1rvm reload
2rvm install 2.1.0

1yum install -y nodejs

1gem install bundler rails

1# Create a 1024 MB SWAP space
2sudo dd if=/dev/zero of=/swap bs=1M count=1024
3sudo mkswap /swap
4sudo swapon /swap

1gem install passenger
2
3# This command will fetch Passenger v4.0(.35+) for you.

1Phusion Passenger Standalone, the easiest way to deploy Ruby web apps.
2
3Available commands:
4
5  passenger start Start Phusion Passenger Standalone.
6
7..

1passenger-install-nginx-module

1Use <space> to select.
2If the menu doesn't display correctly, ensure that your terminal supports UTF-8.
3
4 ‣ ⬢  Ruby
5   ⬢  Python
6   ⬢  Node.js
7   ⬡  Meteor

11. Yes: download, compile and install Nginx for me. (recommended)
2    The easiest way to get started. A stock Nginx 1.4.4 with Passenger
3    support, but with no other additional third party modules, will be
4    installed for you to a directory of your choice.

 1# Create a sample Rails application
 2cd /var
 3mkdir www
 4cd www
 5rails new my_app
 6
 7# Enter the application directory
 8cd my_app
 9
10# Create a sample resource
11rails generate scaffold Task title:string note:text
12
13# Create a sample database
14RAILS_ENV=development rake db:migrate

 1# Enter the application directory
 2cd /var/www/my_app
 3
 4# Run a simple server
 5rails s
 6
 7# You should now be able to access it by
 8# visiting: http://[your droplet's IP]:3000/tasks
 9
10# In order to terminate the server process,
11# Press CTRL+C

1nano /etc/rc.d/init.d/nginx

 1#!/bin/sh
 2. /etc/rc.d/init.d/functions
 3. /etc/sysconfig/network
 4[ "$NETWORKING" = "no" ] && exit 0
 5
 6nginx="/opt/nginx/sbin/nginx"
 7prog=$(basename $nginx)
 8
 9NGINX_CONF_FILE="/opt/nginx/conf/nginx.conf"
10
11lockfile=/var/lock/subsys/nginx
12
13start() {
14    [ -x $nginx ] || exit 5
15    [ -f $NGINX_CONF_FILE ] || exit 6
16    echo -n $"Starting $prog: "
17    daemon $nginx -c $NGINX_CONF_FILE
18    retval=$?
19    echo
20    [ $retval -eq 0 ] && touch $lockfile
21    return $retval
22}
23
24stop() {
25    echo -n $"Stopping $prog: "
26    killproc $prog -QUIT
27    retval=$?
28    echo
29    [ $retval -eq 0 ] && rm -f $lockfile
30    return $retval
31}
32
33restart() {
34    configtest || return $?
35    stop
36    start
37}
38
39reload() {
40    configtest || return $?
41    echo -n $”Reloading $prog: ”
42    killproc $nginx -HUP
43    RETVAL=$?
44    echo
45}
46
47force_reload() {
48    restart
49}
50
51configtest() {
52    $nginx -t -c $NGINX_CONF_FILE
53}
54
55rh_status() {
56    status $prog
57}
58
59rh_status_q() {
60    rh_status >/dev/null 2>&1
61}
62
63case "$1" in
64start)
65rh_status_q && exit 0
66$1
67;;
68stop)
69rh_status_q || exit 0
70$1
71;;
72restart|configtest)
73$1
74;;
75reload)
76rh_status_q || exit 7
77$1
78;;
79force-reload)
80force_reload
81;;
82status)
83rh_status
84;;
85condrestart|try-restart)
86rh_status_q || exit 0
87;;
88*)
89echo $"Usage: $0 {start|stop|status|restart|condrestart|try-restart|reload|force-reload|configtest}"
90exit 2
91esac

1chmod +x /etc/rc.d/init.d/nginx

1nano /opt/nginx/conf/nginx.conf

1# Only for development purposes.
2# For production environment, set it accordingly (i.e. production)
3# Remove this line when you upload an actual application.
4# For * TESTING * purposes only.
5passenger_app_env development;

1..
2
3#    location / {
4#            root html;
5#            index index.html index.htm;
6#        }
7
8..

1root /var/www/my_app/public;
2passenger_enabled on;

1/etc/init.d/nginx restart

1/etc/init.d/nginx status

1http://[Your droplet's IP addr]/tasks
2
3# Listing tasks
4
5# Title Note	
6
7# New Task