Alibaba Cloud Native

Mar 22, 2018 · Cloud Native

Understanding Kubernetes’ Core Design: Declarative Data, List‑Watch, and Level Trigger

This article explains Kubernetes’ fundamental design principles—including declarative state, level‑trigger messaging, and the list‑watch mechanism—by walking through a ReplicationController‑based runtime flow, detailing each component’s role, and analyzing the reliability, ordering, and real‑time requirements of the watch system.