How to port an application to the cloud?

Question

JavaScript

There is a bunch of an application on the pluses and a web interface to it, which communicate via web sockets and live perfectly on the localhost.
I would like to scale this system to a web service. What are the pitfalls?) Only reading data comes from the user, if it is important.
The task seems quite typical, so it is interesting how it is now fashionable to solve such problems.
So far I've come to the conclusion that all I need is nginx to serve the page and run server processes, one per user.

Answer 1

Develop caching, synchronization, load balancing and expose to the cloud.

Answer 2

It is probably worth looking at how cloud platforms are arranged and how applications are written for them, and based on this, evaluate how to do it in your particular case. Look at the same cocaine . On Habré there are examples of how to launch your own cloud and how to write something under it.
We see it like that.