Deploy Rails App in Sub Directory with Nginx + Ubuntu 14.04

config

server {
        listen 80 default_server;
        listen [::]:80 default_server;

        server_name example.com;
        location / {
                passenger_enabled on;
                rails_env development;
                root /var/www/rails/my_app/public;
        }

        location /second-app {
                root /var/www/rails/my_app;
                passenger_base_uri /second-app;
                passenger_enabled on;
                rails_env development;
        }
        location /third-app {
                root /var/www/rails/my_app;
                passenger_base_uri /third-app;
                passenger_enabled on;
                rails_env development;
        }
}