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Setting up a bare-metal cluster - part 1

Introduction

We are going to setup a Kubernetes cluster on bare-metal. Specifically a HA instance of Rancher's k3s using etcd and a virtual ip on three small form factor Thinkcentre machines. The main purpose is to create a simple home lab to explore Kubernetes, do local development and also to host several in-house workloads. The underlying OS is Debian Buster. We'll also look at Ansible to do the initial provisioning of the servers. 

Versions used:

Jupyterhub on Kubernetes

Introduction

Deploying Jupyterhub to a kubernetes cluster allows multiple users an easy way to develop, run and test their notebooks. The hub takes care of spawning Jupyter instances for each user and pruning their pods when not in use anymore. Each new user gets their own volume (through a persistent volume claim), containing all their notebooks, files and working environment. More information on https://zero-to-jupyterhub.readthedocs.io/en/latest/index.html

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