Deploying Ruby on Rails 2.3 on Production - ruby-on-rails

Question

Am sorry for the noobness for this,
I am developing a ruby on rails application on my ubuntu 14.04.
As for development, i'm starting my application using ruby script/server.
Ruby -v 1.8.7
Rails -v 2.3.14
MySql
Now my question is how to deploy this on production?
Am planning to use Ubuntu 14.04 Server as well.
I read about the Phusion Passenger but I did not understand what is that for.
I was hoping to make the ubuntu server as a localhost. So that if I point to the browser like myrailsapp, my application will be available (Normally I will use script/server). Do I have to use the script/server command everytime the server will restart?
Please tell me if im on the right track.
------------ I follow a tutorial --------------
I follow a tutorial like this one but I can't figure out how to make a virtual host working I created a virtual host like this:
/etc/hosts
0.0.0.0 example.com
/opt/nginx/conf/nginx.conf
server {
listen 80;
server_name example.com;
passenger_enabled on;
location / {
root /opt/nginx/html/ror/blog/public;
}
}
On my browser i get 403 Forbidden And do i have to start my rails app like script/server?

Answer 1

Try following
http://www.codesapling.com/blog/2014/04/12/set-up-guide-for-rails-server-on-ubuntu/
or
http://codebeerstartups.com/2012/10/complete-guide-to-setup-a-rails-server/
PS : May be the links outdated but help you getting started.

Answer 2

No you dont need to run script/server every time.
set-up your Rails-App in the server, install rails version with the command
sudo gem install rails ­-v 2.3.1
now install Passenger and Nginx Web Server
sudo apt-­get install libssl0.9.8
sudo passenger-­install-­nginx­-module
follow the onscreen instructions, it would show you the ways to install missing packages.
After the missing packages are installed, run the above command again.
Enter choice 1
Press enter when asked for default path (/opt/nginx)
After completion nginx
Configuring Web Server at
cd /opt/nginx/conf/