Home automation

This repo contains the code for my home automation system. It is based on k3s on a Raspberry Pi 5 using ArgoCD.

Features

Prerequisites

Raspberry Pi - I used a Raspberry Pi 5 with a 32GB SD card

Setup

Install Pi OS Lite

Use the Raspberry Pi Imager to install Pi OS Lite.

Install k3s

SSH into the Raspberry Pi to disable swap and enable cgroups:

sudo swapoff -a
sudo sed -i '/^CONF_SWAPSIZE=/c\CONF_SWAPSIZE=0' /etc/dphys-swapfile
echo $(cat /boot/firmware/cmdline.txt) cgroup_enable=cpuset cgroup_memory=1 cgroup_enable=memory | sudo tee /boot/firmware/cmdline.txt
sudo reboot

Then install k3s:

curl -sfL https://get.k3s.io | INSTALL_K3S_EXEC="server --write-kubeconfig-mode 644" sh -

You can now get the kubeconfig file from the server using the following utility script on your local machine:

./scripts/merge-kubeconfig.sh %%MACHINE_NAME%%

Install ArgoCD

Install ArgoCD using the utility script:

./scripts/install-argocd.sh

Install app-of-apps

Install the app-of-apps:

kubectl apply -n argocd -f ./manifests/app-of-apps.yaml

Cheat sheet

Pi

Pi OS Lite comes with network preconfigured by the imaging tool. To edit network settings (e.g. Wifi) use:

sudo nmtui

ArgoCD

To port-forward the ArgoCD server to your local machine:

k port-forward svc/argocd-server -n argocd 8080:80

To port-forward Grafana to your local machine:

k port-forward -n monitoring svc/kube-prometheus-stack-grafana 8081:80

To port-forward Home Assistant to your local machine:

k port-forward -n home-assistant svc/home-assistant 8082:8080

About

My home automation setup

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iaingalloway / home-automation