Running your own home lab used to mean expensive hardware, complex networking, and hours of manual configuration. This project changes that. With a single Raspberry Pi, Docker Compose, and a few hundred lines of config, you can have a fully self-hosted infrastructure stack that rivals what you'd find in a small business — complete with full-stack observability, network-wide ad blocking, smart home automation, and a secure reverse proxy.
In this post, I'll walk you through the architecture, the key design decisions, and how to get the entire stack running from scratch.
What We're Building
This stack turns a Raspberry Pi into a self-hosted home lab with the following capabilities:
Network-wide DNS ad/tracker blocking via AdGuard Home
Smart home automation via Home Assistant
Full-stack observability — metrics, logs, and dashboards via Prometheus, Grafana, Loki, and Promtail
Reverse proxy with .home domains via Caddy
Service uptime monitoring via Uptime Kuma
ISP bandwidth tracking via Speedtest Tracker
Automated dependency updates via Renovate
Every service is containerised, health-checked, and wired together as code. No click-ops. No manual reconfiguration after a reboot.
Architecture
Before diving into setup, it's worth understanding how traffic flows through the stack:
Browser / Device
│
▼
AdGuard Home (DNS · *.home → Pi LAN IP)
│
▼
Caddy (reverse proxy · :80 :443)
│
├─→ Grafana
├─→ Prometheus
├─→ AdGuard Home UI
├─→ Uptime Kuma
├─→ Speedtest Tracker
├─→ Homepage
├─→ Portainer
└─→ Home Assistant (host network · LAN IP)
Traffic flow:
Client devices point to AdGuard Home as their DNS server. A wildcard rewrite resolves all *.home domains to the Pi's LAN IP.
Caddy receives every HTTP request and reverse-proxies it to the correct container based on the Host header.
Home Assistant runs on the host network (required for device and mDNS discovery) and is proxied via its LAN IP rather than a container name.
Everything else lives on an isolated internal Docker network. Only Caddy bridges internal and frontend — no service is directly reachable from outside the host.
The Stack
| Service |
Role |
| Caddy |
Reverse proxy for all .home domains |
| AdGuard Home |
DNS ad/tracker blocking + DNS rewrites |
| Home Assistant |
Smart home automation platform |
| Prometheus |
Metrics collection and storage |
| Grafana |
Code-provisioned dashboards |
| Loki |
Log aggregation |
| Promtail |
Log shipping from host and containers |
| Node Exporter |
Host-level metrics (CPU, memory, disk, network) |
| cAdvisor |
Per-container resource metrics |
| Uptime Kuma |
Service uptime monitoring with alerting |
| Speedtest Tracker |
Scheduled ISP bandwidth monitoring |
| Homepage |
Unified dashboard for all services |
| Portainer |
Docker management UI |
| Tailscale |
Secure remote access to services from anywhere |
Key Design Decisions
A few non-obvious choices worth explaining before you deploy:
Network isolation — Two Docker networks are defined. All services join internal. Only Caddy also joins frontend. This means nothing is directly reachable from outside the host except through the reverse proxy.
Health checks and startup ordering — Caddy depends on Grafana, Prometheus, AdGuard, and Loki all being healthy before it starts. Grafana waits for Prometheus and Loki. Promtail waits for Loki. This prevents a cascade of 502s on cold starts — a common pain point with naive Docker Compose setups.
AdGuard and Docker's internal DNS — AdGuard binds to port 53 on the host, which can disrupt Docker's embedded DNS resolver (127.0.0.11) via iptables. Caddy is explicitly configured with dns: 127.0.0.11 to pin it to Docker's resolver and prevent it falling back to AdGuard for container name lookups.
Grafana provisioned from code — Dashboards and data sources are mounted from ./grafana/provisioning and ./grafana/dashboards as read-only volumes. No manual configuration required after deployment.
Prerequisites
Setup
1. Clone the Repository
git clone https://github.com/estebanmorenoit/docker-stack.git
cd docker-stack
cp .env.example .env
Open .env and fill in your values:
TZ=Europe/London
EMAIL=your@email.com
APP_KEY= # generate: openssl rand -base64 32
ADGUARD_IP=192.168.x.x # your Pi's LAN IP
HOMEPAGE_ALLOWED_HOSTS=your.domain.com
cp homeassistant/configuration.yaml.example homeassistant/configuration.yaml
This enables use_x_forwarded_for and trusts the Docker subnet (172.16.0.0/12) so Home Assistant correctly identifies client IPs when sitting behind Caddy.
4. Review the Caddyfile
All .home routes are already defined in caddy/Caddyfile. Update hostnames if needed:
http://grafana.home {
reverse_proxy grafana:3000
}
homeassistant.home {
reverse_proxy homeassistant:8123
}
5. Start the Stack
docker compose up -d
Verify everything came up healthy:
docker compose ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
82ff82b83d0a caddy:2.10.0 "caddy run --config …" 11 hours ago Up 11 hours 0.0.0.0:80->80/tcp, [::]:80->80/tcp, 0.0.0.0:443->443/tcp, [::]:443->443/tcp, 443/udp, 2019/tcp caddy-proxy
cb4f090c5921 grafana/grafana:12.0.2 "/run.sh" 11 hours ago Up 11 hours (healthy) 3000/tcp grafana
81d10bdc4afe prom/node-exporter:v1.9.1 "/bin/node_exporter …" 11 hours ago Up 11 hours 9100/tcp node-exporter
66cc62dc8b47 ghcr.io/home-assistant/home-assistant:2025.6 "/init" 11 hours ago Up 11 hours (healthy) homeassistant
51e703d3e24b prom/prometheus:v3.4.2 "/bin/prometheus --c…" 11 hours ago Up 11 hours (healthy) 9090/tcp prometheus
03c67fba6e58 grafana/promtail:3.5.1 "/usr/bin/promtail -…" 11 hours ago Up 11 hours promtail
2639f3708927 adguard/adguardhome:v0.107.63 "/opt/adguardhome/Ad…" 11 hours ago Up 11 hours (healthy) 67-68/udp, 443/tcp, 443/udp, 853/udp, 0.0.0.0:53->53/tcp, [::]:53->53/tcp, 853/tcp, 3000/udp, 5443/tcp, 0.0.0.0:3000->3000/tcp, 0.0.0.0:53->53/udp, [::]:3000->3000/tcp, [::]:53->53/udp, 5443/udp, 6060/tcp, 0.0.0.0:8080->80/tcp, [::]:8080->80/tcp adguard
cabcb80ce586 lscr.io/linuxserver/speedtest-tracker:1.6.1 "/init" 11 hours ago Up 11 hours 80/tcp, 443/tcp speedtest-tracker
d10a767062a4 louislam/uptime-kuma:1.23.16 "/usr/bin/dumb-init …" 2 months ago Up 2 months (healthy) 3001/tcp uptime-kuma
13c1185ccc3d ghcr.io/gethomepage/homepage:v1.3.2 "docker-entrypoint.s…" 2 months ago Up 2 months (healthy) 3000/tcp homepage
3dea5ed05bdf grafana/loki:3.5.1 "/usr/bin/loki -conf…" 2 months ago Up 2 months (healthy) 3100/tcp loki
fd5300d34969 portainer/portainer-ce:2.31.2 "/portainer" 2 months ago Up 2 months 8000/tcp, 9443/tcp, 0.0.0.0:9000->9000/tcp, [::]:9000->9000/tcp portainer
5e9707a29b70 gcr.io/cadvisor/cadvisor:v0.52.1 "/usr/bin/cadvisor -…" 2 months ago Up 2 months (healthy) 8080/tcp
Access AdGuard at http://<pi-ip>:8080. Go to Filters → DNS rewrites and add:
| Domain |
Answer |
*.home |
<your-pi-ip> |
Then point your router to the Pi as its DNS server. All devices on your network will now resolve .home domains automatically.
Remote access via Tailscale — If you run Tailscale on the Pi, you can also add a *.tail rewrite pointing to the Pi's Tailscale IP. This lets you reach all your .home services from any device on your tailnet, even when you're away from home.
Deployment
The deploy.sh script reconciles the running stack with the latest commit in a single command:
./deploy.sh
Under the hood it runs: git pull → docker compose pull → docker compose up -d --remove-orphans
This is a GitOps-style workflow — the repository is the source of truth, and the script brings the running state in line with it.
CI/CD Pipeline
The stack includes a GitHub Actions workflow that automatically deploys to the Pi on every push to main. It connects to the Pi securely over Tailscale — no open ports, no exposed SSH, no VPN configuration required.
GitHub push → GitHub Actions runner
│
▼
Connect to Tailscale (ephemeral node tagged: github-deployer)
│
▼
SSH into Pi over Tailscale
│
▼
git pull → docker compose pull → docker compose up -d
Prerequisites
1. Tailscale OAuth credentials
Create an OAuth client in the Tailscale admin console with all scopes. Add as GitHub repository secrets:
TS_OAUTH_CLIENT_ID
TS_OAUTH_SECRET
2. Register the ACL tag
In the Tailscale admin console under Access Controls, add the tag to tagOwners:
"tagOwners": {
"tag:github-deployer": ["autogroup:admin"],
},
This allows the ephemeral GitHub Actions node to join your tailnet.
3. SSH deploy key
Generate a dedicated key on the Pi and add the public key to authorized_keys:
ssh-keygen -t ed25519 -C "github-actions" -f ~/.ssh/github_deploy -N ""
cat ~/.ssh/github_deploy.pub >> ~/.ssh/authorized_keys
Add the private key contents as a GitHub repository secret named SSH_PRIVATE_KEY.
Also trust GitHub's SSH host key on the Pi, and switch the repo remote to SSH:
ssh-keyscan github.com >> ~/.ssh/known_hosts
git remote set-url origin git@github.com:<your-username>/<your-repo>.git
The workflow
name: Deploy with Tailscale GitHub Action
on:
push:
branches:
- main
jobs:
deploy:
runs-on: ubuntu-latest
steps:
- name: Connect to Tailscale
uses: tailscale/github-action@v3
with:
oauth-client-id: ${{ secrets.TS_OAUTH_CLIENT_ID }}
oauth-secret: ${{ secrets.TS_OAUTH_SECRET }}
tags: tag:github-deployer
- name: Setup SSH agent
uses: webfactory/ssh-agent@v0.9.0
with:
ssh-private-key: ${{ secrets.SSH_PRIVATE_KEY }}
- name: SSH into Raspberry Pi over Tailscale
run: |
ssh -o StrictHostKeyChecking=accept-new user@raspberrypi.<your-tailnet>.ts.net <<'EOF'
cd ~/docker-stack
git pull origin main
docker compose pull
docker compose up -d --remove-orphans
EOF
Once configured, every push to main automatically updates the running stack — no manual SSH required.
Observability
Once the stack is running, your full observability pipeline looks like this:
| What |
How |
| Host metrics |
Node Exporter → Prometheus → Grafana |
| Container metrics |
cAdvisor → Prometheus → Grafana |
| Container & system logs |
Promtail → Loki → Grafana |
| Service uptime |
Uptime Kuma |
| ISP bandwidth |
Speedtest Tracker (every hour) |
Prometheus retains 7 days of metrics — appropriate for a resource-constrained Pi. Grafana dashboards are provisioned from code, so no manual setup is required after first boot.
Maintenance
maintenance.sh handles routine housekeeping — pruning unused Docker images, containers, volumes, and networks, cleaning Loki log chunks older than 7 days, and rotating Docker container logs.
Schedule it weekly via cron:
0 3 * * 0 /path/to/docker-stack/maintenance.sh >> /path/to/docker-stack/maintenance.log 2>&1
Automated Dependency Updates
Renovate is configured to automatically open pull requests when new image versions are published. No manual tracking of upstream releases required — the dependency dashboard gives you a full view of what's pinned, what's outdated, and what PRs are open.
Wrapping Up
This stack demonstrates that a Raspberry Pi is more than capable of running a production-grade self-hosted infrastructure. The combination of Docker Compose, a GitOps deploy workflow, code-provisioned dashboards, and automated dependency updates means you get consistency, reproducibility, and maintainability — the same properties you'd expect from a professional environment.
The full source is available on GitHub. Clone it, adapt it to your setup, and feel free to raise issues or PRs.
Have questions or want to share how you've extended the stack? Leave a comment below.
