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Horizontal scaling with MongoDB and Nodejs
I have a web application running on a single droplet, powered by Node.js + MongoDB + nginx on the same machine. Application traffic is increasing and I would like to scale my servers, so it will have 3 servers, one for MongoDB, second and third would be web servers.
My question is: how do I setup my mongodb server? Can I make it accessible only from my web servers, or it is possible to create some sort of “local network” on Digital Ocean, so only 1 IP (load balancer) could be seen from the Internet.
Also, any tips on making this setup are welcomed.
Thanks in advance.
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