Host a nodejs and socketio app on a dedicated hosting (EC2) - node.js

Question

I have a private messaging app built with nodejs and socketio which works in the url http://localhost:3000
I'm wondering how would I integrate it in a dedicated server like Amazon's EC2? I can understand that it will work on http://someip:3000 but I want the chat application to work inside a website, just like facebook. How do I set it up to work on all website pages?
Thank you

Answer 1

Basically you need a web server to proxy your app in the port 80 (http), this is a basic configuration for Nginx where the node app running in 127.0.0.1:3000 will be proxied to the port 80 of www.example.com that should point to the EC2 public IP:
upstream node {
ip_hash;
server 127.0.0.1:3000;
}
server {
server_name www.example.com;
access_log /var/log/nginx/www.example.com-access.log main;
error_log /var/log/nginx/www.example.com-error.log warn;
listen 80;
location / {
## Socket.io
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
## End Socket.io
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
#proxy_set_header Host $http_host;
proxy_set_header Host $host;
proxy_set_header X-NginX-Proxy true;
proxy_pass http://node;
proxy_redirect off;
proxy_max_temp_file_size 0;
}
}