Unable to configure application to deploy rails and nginx applications

Question

I am deploying a rails application on VPS with CentOS. I installed the passenger with gem install passenger. And I used to install nginx rvmsudo passenger-install-nginx-module.

In the nginx configuration file, I installed:

server { 
        listen       80; 
        server_name  my-ip-address;  

       location / { 
            root   /home/deploy/repos/application-name/public; 
            passenger_enabled on; 
            rails_env production;  
        }
        ...
}

When I execute sudo service nginx status, I get the following:

nginx (pid 21015 21014) is running...

which shows that nginx is running.

But I get This webpage is not availablein the browser.

Even I get the same result when I install rails server in development mode with rails sand try to check in browsermy-ip-address:3000

Can anyone help with what could be the problem?

When I run the command passenger-config restart-app, the result is:

Phusion Passenger is currently not serving any applications

I need a suggestion on whether this is a problem with nginx or passenger?

One more question -

, nginx , " nginx"?

Update:

passenger start -p 3000 -d -e production, . , passenger-status, , Phusion Passenger is currently not serving any applications, :

Version : 5.0.21
Date    : 2016-01-16 10:42:42 +0530
Instance: feOajf7V (nginx/1.8.0 Phusion_Passenger/5.0.21)

----------- General information -----------
Max pool size : 6
App groups    : 1
Processes     : 1
Requests in top-level queue : 0

----------- Application groups -----------
/home/deploy/repos/application-name/public (production):
  App root: /home/deploy/repos/application-name
  Requests in queue: 0
  * PID: 22003   Sessions: 0       Processed: 0       Uptime: 4m 17s
    CPU: 0%      Memory  : 36M     Last used: 4m 17s ago

passenger-config restart-app, :

Please select the application to restart.
 ‣   /home/deploy/repos/application-name/public (production)
     Cancel

, ? webpage not available .

Answer 1

, passenger . root :

passenger start -p <port>

<port> - , (: 8000).

UPDATE

, , , nginx . , ip VPS, , . , .

Answer 2

, (;)) :

keepalive_timeout 10;
passenger_enabled on;
root /var/www/org/current/public;

, . , .

: https://www.phusionpassenger.com/library/deploy/nginx/deploy/ruby/

, , nginx , , , -, .