Pod

The Kubernetes network model read from the room up — why a Pod gets one IP and shares it across containers, the three rules every CNI must satisfy and where NAT still lives, how a Pod IP is born in two steps and dies only with the Pod, what kubelet actually does when it probes, and the /24-vs-/32 choice that decides whether the host sees every packet.

A beginner-friendly summary of Chapter 1 from Kubernetes Patterns — covering containers, pods, services, labels, annotations, and namespaces.

kubelet 이 컨테이너 상태를 확인하는 세 가지 검사. 실패했을 때 벌어지는 일이 각각 다르다.