Build a Kubernetes (k3s) cluster with RPis and utilize GitOps for managing cluster state.

Thanks to the following pages

• https://gist.github.com/elafargue/a822458ab1fe7849eff0a47bb512546f
• https://github.com/onedr0p/homelab-gitops
• https://github.com/billimek/k8s-gitops

• This was done using a cluster of 4 x RPi 4 4GB
• All Pi's are connected via a local ethernet switch on a 10.0.0.0/24 LAN
• The master node connects to the outside world on WiFi, and provides NAT for the the rest of the cluster.

.
│   # Flux will scan and deploy from this directory
├── ./manifests
│   # Initial setup of the cluster
├── ./setup
│   │   # Scripts for setting things up
│   ├── ./bin
│   │   # Config for RPI
│   └─ ./nodes
│   # Docker builds for ARM devices
└── ./docker

• 4 x Raspberry Pi 4 Model B 4GB
• 4 x Raspberry Pi PoE Hat
• 4 x SanDisk Ultra microSDHC Memory Card
• 4 x 15cm Flat Cat 6 cables
• 4 x Low profile heatsinks
• 4 x WD Green 240GB 2.5" SSD
• 4 x SSD to USB 3.0 Cable
• Uctronics Cluster Enclosure V3.0
• MicroSD Extender Set for Uctronics Cluster Cases
• NETGEAR 5-Port Gigabit Ethernet PoE Switch