My Kubernetes application moved from my home server to Amazon EKS without an application code change.

The platform around it did not.

The EKS control plane took 5 minutes 51 seconds to create. Once the delivery path was working, Argo CD deployed two healthy application replicas and corrected a manual scaling change in 5 seconds.

But reaching that result exposed three assumptions about networking, worker size and AWS access that did not exist in my home lab.

That was the test I wanted.