Building self healing server clusters that:

  -can run any workload 
  -on any hardware  
  -at any scale 
  -with load balancers
  -and persistent disks 
  -and auto scaling 
  -and resource limits 
  -and certificate management
  -and no single point of failure 
  -and etc.

requires a lot of esoteric complexity. Kubernetes did not create this complexity, but it is solving it in a standardized and universal way.