Homelab

! WORK IN PROGRESS

Hardware

• 4 nodes of NEC SFF PC (Japanese version of the ThinkCentre M700)
  • CPU: Intel Core i5-6600T
  • RAM: 16GB
  • SSD: 128GB
• TP-Link TL-SG108 switch

Architecture

Layer	Name	Description	Provisioner
0	metal	Bare metal OS installation, LXD, Terraform state backend,...	Ansible, PXE server
1	infra	Kubernetes clusters, shared apps (Git, Vault, Argo...)	Terraform, Helm
2	apps		Argo

Usage

Prerequisite

For the controller (to run Ansible, stateless PXE server, Terraform...):

• SSH keys in ~/.ssh/{id_rsa,id_rsa.pub}
• Docker with host networking driver (which means only Docker on Linux hosts)

For bare metal nodes:

• PXE IPv4 enabled
• Wake-on-LAN enabled
• Secure boot disabled (optional, depending on the OS)

Configurations

• Bare metal nodes settings (IP, MAC...)
• OS settings (PXE, network...)

Building

Open the tools container:

make

Then build each layer:

make metal
make infra
make apps

Acknowledgments

• Fix nf_conntrack hash size fix for Kubernetes on LXD
• Humble project
• Kubernetes on LXD issue with BTRFS
• LXD container profile for Kubernetes
• Make LXD containers get IP addresses from LAN
• Some device mount for Kubernetes on LXD