Do you happen to know of any best practices guides that might help others achieve similar results? I’m working on an app that might have to scale very quickly at launch, and I want to do my best to help our team do it right.
There was a lot of homegrown software where others would use a library. That was deliberate. If you need five features, but choose an off-the-shelf package with 5,000 features, pretty soon you'll find that the list of features you're using has grown to 50, then 500, and so on, even if you don't actually need any of it. If a toy's in the box, the kids will play with it.
Maybe one thing to try is to focus on imposing constraints, and making people live within them. RAM, # of CPU cores, whatever. Software is like a gas. It will naturally expand to fill all available space.
What I do is put my database on a droplet and my files on another and it can handles millions of requests. Put them on the same machine and I need to increase ram higher than the cost of multiple small droplets.
If you ever reach those limits consider setting up a load balancer.
All the web queries are responded in <<< 1 second - so far....