Technical requirements
For this chapter, you need the following hardware to create your K3s homelab for your edge computing applications or experiments:
- Two or more Raspberry Pi 4 B models with a minimum of 4 GB RAM and a 32 GB microSD card with Ubuntu version 20.04 or later. The SanDisk Extreme microSDHC 32 GB UHS-1 A1 V30 or similar is recommended as the microSD card.
- Ethernet cables to connect your Raspberries.
- An Ethernet internet connection for the Raspberries with Dynamic Host Configuration Protocol (DHCP) activated.
- One switch to connect your Raspberry to your local network.
With this hardware, we are ready to start building our K3s homelab. So, let’s get started.