[suprgeek]

The AWS scaling series https://aws.amazon.com/blogs/startups/scaling-on-aws-part-1-... gives you a very nice primer on this exact situation. You may or may not opt to use AWS - the fundamental concepts would translate well over other cloud providers or even on premises.

Then you can follow along parts 2, 3 &4 to scale up by factors of ~10 or more -

https://aws.amazon.com/blogs/startups/scaling-on-aws-part-2-... https://aws.amazon.com/blogs/startups/scaling-on-aws-part-3-...