K3s Architecture

How my kubernetes cluster is setup

Why K3s

I chose K3s as the Kubernetes distribution for my cluster after watching NetworkChuck’s video “Raspberry Pi Supercomputer.”

As mentioned in their official documentation, K3s was the right choice because it is:

• Lightweight (less than 100MB)
• Beginner friendly
• Great for homelab environments
• Good for ARM computers such as my Raspberry Pis

Architecture

My cluster follows a similar structure to the Single Server architecture shown in the official K3s documentation.

I have one node as the server and two agent nodes (potentially three after I connect the last Pi).

Each node has a fixed IP address inside my cluster network, as mentioned in the networking section of my documentation, ensuring my cluster behaves consistently across different locations such as home and workplace.