alt Hacker NewsK8s is just a standardized api for running "programs" on hardware, which is a really difficult problem it solves fairly well.
Is it complex? Yes, but so is the problem it's trying to solve. Is its complexity still nicer and easier to use than the previous generation of multimachine deployment systems? Also yes.
I wrote a scheduler for VMs a long time ago. k8s is basically just the same thing but for containers.
It really confuses me how someone can argue for cloud providers over a decent open solution without realising their argument is simply they don't want to be managing the thing.
And that's fine, most teams shouldn't be neck deep in managing a platform. But that doesn't make the solution bad.