Technology · Ebook

k0s: Zero-Friction Kubernetes

by Shriira Press

k0s is a CNCF project that packages an entire conformant Kubernetes distribution into one self-contained binary you can drop onto a server and run. It exists because standing up Kubernetes has long meant wrangling runtimes, kubelets, certificates, and a datastore before scheduling a single pod — a tax that is brutal on edge devices, IoT gateways, bare metal, and air-gapped sites. k0s removes it: download one file, run one command, and a cluster appears. This book tours the single-binary architecture, the controller and worker roles, the embedded datastore and Kine, Konnectivity and CNI networking, installation and join tokens, fleet automation with k0sctl, declarative Helm and manifest add-ons, and finally upgrades, security, and where k0s fits among lightweight distributions.

Contents

1. 1Preface
2. 2Chapter 1 — Why k0s Exists
3. 3Chapter 2 — The Single-Binary Architecture
4. 4Chapter 3 — Controllers and Workers
5. 5Chapter 4 — The Datastore and Kine
6. 6Chapter 5 — Networking and Konnectivity
7. 7Chapter 6 — Installing and Running k0s
8. 8Chapter 7 — Fleet Automation with k0sctl
9. 9Chapter 8 — Extensions: Helm and Manifests
10. 10Chapter 9 — k0s in Practice