This tutorial walks you through setting up Kubernetes the hard way. This guide is not for someone looking for a fully automated tool to bring up a Kubernetes cluster. Kubernetes The Hard Way is optimized for learning, which means taking the long route to ensure you understand each task required to bootstrap a Kubernetes cluster.
The results of this tutorial should not be viewed as production ready, and may receive limited support from the community, but don't let that stop you from learning!
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
The target audience for this tutorial is someone who wants to understand the fundamentals of Kubernetes and how the core components fit together.
Kubernetes The Hard Way guides you through bootstrapping a basic Kubernetes cluster with all control plane components running on a single node, and two worker nodes, which is enough to learn the core concepts.
Component versions:
kubernetes v1.28.x
containerd v1.7.x
cni v1.3.x
etcd v3.4.x
This tutorial requires four (4) ARM64 based virtual or physical machines connected to the same network. While ARM64 based machines are used for the tutorial, the lessons learned can be applied to other platforms.
Prerequisites
Setting up the Jumpbox
Provisioning Compute Resources
Provisioning the CA and Generating TLS Certificates
Generating Kubernetes Configuration Files for Authentication
Generating the Data Encryption Config and Key
Bootstrapping the etcd Cluster
Bootstrapping the Kubernetes Control Plane
Bootstrapping the Kubernetes Worker Nodes
Configuring kubectl for Remote Access
Provisioning Pod Network Routes
Smoke Test
Cleaning Up