Node.js Deployment in openshift

Question

I was trying to deploy a Node.js application to the openshift as in this link here

I understand this code

var http = require('http');

var server = http.createServer(function(req, res) {
    res.writeHead(200);
    res.end('Hello Http');
});
server.listen(3000);

and there is no issue running it locally

$ node server.js // saved as server.js

However, how does this work when I commit this application in openshift? This is very simple code. I have some downloaded code that is a chat application and client-server need to configure to listen on some port (I was using port number 3000 in my localhost).

It works on port number 3000 in localhost but how can I make it to work in Openshift?

Answer 1

You need to listen on port process.env.OPENSHIFT_NODEJS_PORT. So something like this should work:

server.listen(process.env.OPENSHIFT_NODEJS_PORT || 3000);

See here for example: Error: listen EACCES on Openshift app