[robfig]

I see this argument made pretty frequently, and it might be correct for a team that's just starting out.

But service discovery and zero downtime upgrades are not that hard to implement and maintain. Our company's implementations of those things from 12 years ago have required ~zero maintenance and work completely fine. Sure, it uses Zookeeper which is out of vogue, but that also has been "just working" with very little attention.

A thought experiment where we had instead been running a Kubernetes cluster for 12 years comes out pretty lopsided in favor of the path we took for which one minimizes the effort spent and complexity of the overall system.

[dolni]

You don't even need to implement service discovery. AWS load balancers do that for you.