rak8s (pronounced rackets - /ˈrækɪts/)

Stand up a Raspberry Pi based Kubernetes cluster with Ansible

Why?

Because Raspberry Pis are rad, Ansible is awesome, and Kubernetes is a killer app! Also, it's cheaper than a year of GKE.

Prerequisites

• Raspberry Pi 3 (3 or more)
• Raspbian Lite
• Raspberry Pis should have static IPs (requirement for Kubernetes and Ansible inventory)
• Ability to SSH into all Raspberry Pis and escalate privileges with sudo
  • The pi user is fine just change its password
• Ansible 2.2 or higher

Recommendations

• Since Raspbian Lite is being used it's recommended that the video memory of the Raspberry Pi 3s be set to its lowest setting (16 MB).

References & Credits

These playbooks were assembled using a handful of very helpful guides:

• K8s on (vanilla) Raspbian Lite by Alex Ellis
• Installing kubeadm
• kubernetes/dashboard - Access control - Admin privileges
• Install using the convenience script

A very special thanks to Alex Ellis and the OpenFaaS community for their assitance in answering questions and making sense of some errors.