cannot assess rails app on amazon ec2

Question

I'm using Amazon EC2 and tried to deploy a rails project. I have install nginx/passenger and successfully made nginx server run.

I started my rails project with name "forfun" then I set the root of nginx to /home/ubuntu/rails/forfun/public

I initialized a file named "index.html", then I could see the page in browser ( http://[my ip]:80)

However, what i really wanna see is the welcome page of rails app.

I tried do remove index.html and see what i got. I saw 404 Forbidden error. /var/log/nginx/error.log reveals that directory index of "/home/ubuntu/rails/forfun/public/" is forbidden

What step i actually missed?

by the way, do i need to do "rails server" while nginx is running?

ps: (1) /opt/nginx/conf/nginx.conf

http {
    passenger_root /usr/local/rvm/gems/ruby-2.3.0/gems/passenger-5.0.26;
    passenger_ruby /usr/local/rvm/gems/ruby-2.3.0/wrappers/ruby;
    ... 
        server {
        listen       80;
        server_name  52.196.XX.XXX;#my amazon public ip
            root /home/ubuntu/rails/forfuni/public;
        }

(2)/etc/nginx/sites-enabled/default

server {

        listen 80 default_server;
        listen [::]:80 default_server ipv6only=on;

        root /home/ubuntu/rails/forfun/public;
        index index.html index.htm;
    }

Answer 1

Try adding /etc/nginx/sites-enabled/default

server {
 listen 80 default_server;
 server_name  52.196.XX.XXX;#my amazon public ip;

 passenger_enabled on;
 passenger_app_env development; #or whatever rails env you want.

The whole process of deploying a rails app using nginx/passenger is documented here . See the nginx section.

https://www.digitalocean.com/community/tutorials/how-to-deploy-a-rails-app-with-passenger-and-nginx-on-ubuntu-14-04