8.2: Configuring Traefik in 5 minutes

   -     -    1 minute
📚Docker for beginners: The Shipyard
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Objective

proxy-traefikQuickly deploy Traefik in a separate Compose stackDocker and allow your applications to connect via a shared network.
For now, we’ll stick with HTTP (port 80) to simplify discovery and routing.

Step 1: Create the Traefik network

Before starting Traefik, create a shared external networkDocker:

docker network create proxy-traefik

This network will be used to connect Traefik and all web containers without directly exposing their internal ports.

Step 2: Minimal Traefik Docker Compose

Here is an example ofdocker-compose.yml a Docker Compose file for a simple deployment over HTTP:

networks:
  proxy-traefik:
    external: true

services:
  traefik:
    image: traefik:v3.6
    container_name: traefik
    restart: unless-stopped
    command:
      - "--api.insecure=true"         # Dashboard accessible sur le port 8080
      - "--providers.docker=true"     # Découverte automatique des conteneurs Docker (labels activés mais à configurer plus tard)
      - "--entrypoints.web.address=:80" # On expose uniquement le port HTTP pour l'instant
    ports:
      - "80:80"      # Port HTTP pour tout le monde
      - "8080:8080"  # Dashboard Traefik
    volumes:
      - "/var/run/docker.sock:/var/run/docker.sock:ro"
    networks:
      - proxy-traefik

Step 3: Launch Traefik

In the Traefik stack directory:

docker-compose up -d
  • Traefik is now running and ready to listen on port 80 for your applications.
  • The dashboard is accessible at http://localhost:8080, allowing you to verify that Traefik is working correctly.

Quick note: We’re sticking with HTTP for this step to simplify the configuration and focus on how Traefik works.