[throw2016]

This illustrates the confusion around infrastructure and apps by 'devops' in a rather telling way. It's a bit like comparing Mysql or Postgresql and Aurora. Both give you databases and even some builtin replication technology but only one gives you databases plus availability and scalability out of the box.

Without that you would have to engineer your own distributed architecture and actually have the infrastructure in terms of bandwidth, regions, networking and data centers to scale to.

AWS gives you availability and scalability out of the box. Usually only a cloud provider can give you that with physical infrastructure in multiple regions, bandwidth, networking, things like floating ips, replicated storage and in the case of things like Aurora architecture and engineering. Kubernetes is a container orchestration application.