When people start learning Kubernetes, they usually ask:

“What’s the hardest part of Kubernetes?”

At first, I thought the answer would be something complicated like etcd, kube-scheduler, or cluster upgrades.

But after spending months learning Kubernetes, preparing for the Certified Kubernetes Administrator (CKA) exam, and eventually becoming a Kubestronaut, I realized something surprising:

The hardest Kubernetes concepts aren’t necessarily the most advanced ones.