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Multi-Node Setup

How to add a second machine (like the Pentium) and route traffic to it through Traefik on the primary node.

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Overview

Internet → Cloudflare Tunnel → i3 Traefik → i3 containers (Docker network)
                                           → Pentium containers (LAN HTTP)
The primary machine (i3) runs Traefik as the single ingress point. The secondary machine (Pentium) runs services that Traefik reaches over the LAN.

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Steps

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1. Set up the second machine

  • Install Debian, Docker, Docker Compose
  • Clone the repo: git clone git@github.com:amarcin/homelab.git ~/apps
  • Assign a static IP (e.g., 192.168.1.16)

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2. Configure SSH access

From the primary machine, set up passwordless SSH: 
ssh-copy-id user@192.168.1.16
Add to ~/.ssh/config: 
Host pentium
    HostName 192.168.1.16
    User user

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3. Add Traefik routing

On the primary machine, add services to traefik/dynamic/pentium-services.yaml: 
http:
  routers:
    service-name:
      rule: "Host(`service.augustin.ai`)"
      entryPoints: [websecure]
      service: service-name
  services:
    service-name:
      loadBalancer:
        servers:
          - url: "http://192.168.1.16:<port>"
Traefik picks up dynamic config changes automatically.

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4. Deploy services on the second machine

ssh pentium
cd ~/apps
docker compose -f <service>/compose.yaml up -d

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Backups Across Nodes

Each machine backs up to the other via SFTP, plus Backblaze B2. See Backups for details.