How do I setup a SSL certificate for an express.js server behind a load balancer?

I'm restructuring my server structure by splitting them up instead of running everything from one server.

I looked here but that just specifies what I were already doing in the original setup with just 1 server.

I'm having a structure like this:

• 2x Web-Server
• 1x Load-Balancer
• 1x Cache-Server
• 1x Worker-Server
• 1x Database-Server

Everything works great except the socket connection.

My Load-Balancer has generated an SSL cert

Usually, I point to them like this:

var server = require('https').createServer({
    key: fs.readFileSync('/etc/nginx/ssl/mywebsite.com/1652307/server.key'),
    cert: fs.readFileSync('/etc/nginx/ssl/mywebsite.com/1652307/server.crt'),
}, app);

However, in my socket.js file, I'm unable to point to the certificates because they are now placed on the load balancer.

I have been setting up the infrastructure with laravel forge.

The error I get in the console is: `WebSocket is closed before the connection is established.

I'm using Nginx.

How do I go about this?

The SSL termination should be on load-ballancer, and in this case you should not enable SSL on backends.