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Traefik reverse proxy with Let's Encrypt with Docker Compose

Traefik routing to containers by label, redirecting HTTP to HTTPS and fetching Let's Encrypt certificates, with a sample whoami service.

Customize names, versions →

services:
  traefik:
    image: traefik:v3.4
    restart: unless-stopped
    command:
      - --providers.docker=true
      - --providers.docker.exposedbydefault=false
      - --entrypoints.web.address=:80
      - --entrypoints.web.http.redirections.entrypoint.to=websecure
      - --entrypoints.web.http.redirections.entrypoint.scheme=https
      - --entrypoints.websecure.address=:443
      - --certificatesresolvers.le.acme.email=you@example.com
      - --certificatesresolvers.le.acme.storage=/letsencrypt/acme.json
      - --certificatesresolvers.le.acme.httpchallenge.entrypoint=web
    ports:
      - "80:80"
      - "443:443"
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock:ro
      - letsencrypt:/letsencrypt

  whoami:
    image: traefik/whoami
    restart: unless-stopped
    labels:
      - traefik.enable=true
      - traefik.http.routers.whoami.rule=Host(`whoami.example.com`)
      - traefik.http.routers.whoami.entrypoints=websecure
      - traefik.http.routers.whoami.tls.certresolver=le

volumes:
  letsencrypt:

How to use it

docker compose up -d
docker compose ps
docker compose logs -f

• Point the domain's DNS at this server and open ports 80 and 443. Route your own containers by copying the whoami labels.
• Traefik reads the Docker socket to discover containers; keep it read-only as shown.