Raspberry Pi Kubernetes cluster - Ansible setup

This is my custom script for setting up a Raspberry Pi cluster, and running Kubernetes on it. This will:

• Set up Pis, including configuring cgroup memory for kubernetes
• Install kubernetes and reccomended dependencies
• Set up one master node and N worker nodes, and automatically create a working cluster

Requirements

• At least two Raspberry Pi 4s
• Pis should run Ubuntu Server
• SSH access with publickey authentication setup from the same computer running the playbook

Setup

Create your inventory file inventory/inventory.yml. This should follow the format of inventory/inventory_template. Only one master node is supported.

touch inventory/inventory.yml

Then, edit the inventory/group_vars/cluster.yml file to the correct SSH host name of your Raspberry pi's (default ubuntu)

Usage

The script can be run by executing the cluser.yml playbook:

ansible-playbook cluster.yml -i inventory/inventory.yml