Hosting multiple node.js instances on nginx

Question

Hey guys I have a Rasberry Pi 4 and I wish to host multiple node.js websites using Nginx, right now I have one instance that runs well and is connected to Cloudflare.

Current 'default' file below

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

        root /var/www/html;

        server_name example.com www.example.com;

        location / {
                proxy_pass http://localhost:5085;
                proxy_http_version 1.1;
                proxy_set_header Upgrade $http_upgrade;
                proxy_set_header Connection 'upgrade';
                proxy_set_header Host $host;
                proxy_cache_bypass $http_upgrade;
        }
}

Now I need to host 2 more websites here, those are - example1.com which runs on localhost:3000 & example2.com which runs on localhost:4000

Now after this, I got another doubt, I need to add these 2 to Cloudflare.

In image one, I just had to put my public IP Address which was port forwarding at port 80 here's an image for that

Now how would I connect the host to cloudflare. Can someone please help?

Answer 1

You simply have to copy your current nginx server configuration and change the server_name property to server_name example2.com and change the proxy_pass target accordingly.

It will look like something like this:

# example.com server/proxy
server {
   listen 80 default_server;
   listen [::]:80 default_server;

   server_name example.com www.example.com;

   location / {
       proxy_pass http://localhost:5085;
       # ...
   }
}

# example2.com server/proxy
server {
   listen 80;       # we removed the default_server tag here   
   listen [::]:80;  # because it can only be used once  

   server_name example2.com www.example2.com;

   location / {
       proxy_pass http://localhost:1234;
       # ...
   }
}