k8s-worksheet

Kubernetes Internals Worksheet — a flow-first prep guide for senior, staff, and principal-level interviews on Kubernetes internals.

Read online · Download the PDF · all releases

Chapters

Part A — Foundations & control plane internals

• Chapter 1 — Architecture Big Picture
• Chapter 2 — API Server & etcd Internals
• Chapter 3 — Scheduler Internals
• Chapter 4 — Kubelet, Pods & the Node

Part B — Controllers

• Chapter 5 — Controller Fundamentals
• Chapter 6 — Writing Controllers Well

Part C — Standards & extension interfaces

• Chapter 7 — Networking & CNI
• Chapter 8 — Storage & CSI
• Chapter 9 — Runtime & Device Standards: CRI, Device Plugins, DRA

Part D — Operating at scale

• Chapter 10 — Scalability, Resiliency & System Design

Part E — Judgment at principal scale

• Chapter 11 — Fleet, Platform & Economics
• Chapter 12 — Design Judgment: Lineage, Frontier & Capstones

Reference

• Appendices
• The 30 flows

If the worksheet helps your prep, a ⭐ helps others find it — and watching releases gets you new chapters as they land.

Contributing

Build instructions, the writing contract, and the diagram size gate are in CONTRIBUTING.md.