This tutorial is adapted of the original Kubernetes The Hard Way from @keyseyhightower, walks you through setting up Kubernetes the hard way. Since RPI3 and arm64 support, I like to create bare metal laboratories, but run kubernetes with RPi with few computational resources is a challenge. I bought a brand new four RPI 4, with 4GB RAM and 32 GB each. Not the same the e2-standard instances, but I think its enought to try.
This guide is not for people looking for a fully automated command to bring up a Kubernetes cluster. If that's you then check out Google Kubernetes Engine, or the Getting Started Guides.
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.
Kubernetes The RPi Way is my excuse to follow this guide and create a tiny datacenter infrastructure... :-)
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 planning to support a production Kubernetes cluster and wants to understand how everything fits together.
Kubernetes The Hard Way guides you through bootstrapping a highly available Kubernetes cluster with end-to-end encryption between components and RBAC authentication.
- kubernetes v1.21.0
- containerd v1.4.4
- coredns v1.8.3
- cni v0.9.1
- etcd v3.4.15
This tutorial assumes you have access to the Google Cloud Platform. While GCP is used for basic infrastructure requirements the lessons learned in this tutorial can be applied to other platforms.
- Prerequisites
- Installing the Client Tools
- 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
- Deploying the DNS Cluster Add-on
- Smoke Test
- Cleaning Up