Before beginning the installation process, let’s take a moment to review the cluster setup and the corresponding IP addresses assigned to each node in our Raspberry Pi 4 cluster.

The addresses assigned to the cluster

^ name      ^ IP            ^ type      ^ SO               ^
| ---------- | ------------- | --------- | ---------------- |
| master     | 192.168.1.80  | RPI4 8Gb  | Debian Bullseye  |
| worker01   | 192.168.1.81  | RPI4 2Gb  | Debian Bullseye  |
| worker02   | 192.168.1.82  | RPI4 8Gb  | Debian Bullseye  |
| worker03   | 192.168.1.83  | RPI3 1Gb  | Debian Bullseye  |