01-traefik-outline-letsencrypt-docker-compose.yml

networks:
  traefik-network:
    external: true

volumes:
  traefik-certificates:

services:
  traefik:
    image: ${TRAEFIK_IMAGE_TAG}
    command:
      # Set the log level (DEBUG, INFO, WARN, ERROR)
      - "--log.level=${TRAEFIK_LOG_LEVEL}"
      # Enable the built-in API and web-based dashboard
      - "--api.dashboard=true"
      # Enable the /ping endpoint so we can health-check Traefik
      - "--ping=true"
      # Assign the /ping endpoint to a dedicated entry point on port 8082
      - "--ping.entrypoint=ping"
      - "--entrypoints.ping.address=:8082"
      # Define the primary HTTP entry point on port 80
      - "--entrypoints.web.address=:80"
      # Define the secure (HTTPS) entry point on port 443
      - "--entrypoints.websecure.address=:443"
      # HTTP -> HTTPS redirect at entrypoint level
      - "--entrypoints.web.http.redirections.entrypoint.to=websecure"
      - "--entrypoints.web.http.redirections.entrypoint.scheme=https"
      # Enable the Docker provider to detect containers and their labels
      - "--providers.docker=true"
      # Point Traefik to the Docker socket
      - "--providers.docker.endpoint=unix:///var/run/docker.sock"
      # Prevent automatic exposure of all containers; only expose containers
      # with "traefik.enable=true"
      - "--providers.docker.exposedbydefault=false"
      # Use ACME (Let's Encrypt) to generate/renew certificates via TLS challenge
      - "--certificatesresolvers.letsencrypt.acme.tlschallenge=true"
      # The email address used by Let's Encrypt for renewal notices
      - "--certificatesresolvers.letsencrypt.acme.email=${TRAEFIK_ACME_EMAIL}"
      # The file where ACME certificates are stored inside the container
      - "--certificatesresolvers.letsencrypt.acme.storage=/etc/traefik/acme/acme.json"
      # Enable Prometheus metrics
      - "--metrics.prometheus=true"
      # Configure Prometheus histogram buckets
      - "--metrics.prometheus.buckets=0.1,0.3,1.2,5.0"
      # Check for newer Traefik versions and optionally log that info
      - "--global.checknewversion=true"
      # Disable sending anonymous usage data to the Traefik maintainers
      - "--global.sendanonymoususage=false"
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock:ro
      - traefik-certificates:/etc/traefik/acme
    networks:
      - traefik-network
    ports:
      - "80:80"
      - "443:443"
    healthcheck:
      test: ["CMD", "wget", "http://localhost:8082/ping","--spider"]
      interval: 10s
      timeout: 5s
      retries: 3
      start_period: 5s
    labels:
      # Enable Traefik for this container
      - "traefik.enable=true"
      # A router to expose the Traefik dashboard
      - "traefik.http.routers.dashboard.rule=Host(`${TRAEFIK_HOSTNAME}`)"
      - "traefik.http.routers.dashboard.entrypoints=websecure"
      - "traefik.http.routers.dashboard.tls=true"
      - "traefik.http.routers.dashboard.tls.certresolver=letsencrypt"
      - "traefik.http.routers.dashboard.service=api@internal"
      # Basic Authentication for the Traefik dashboard
      - "traefik.http.routers.dashboard.middlewares=authtraefik"
      - "traefik.http.middlewares.authtraefik.basicauth.users=${TRAEFIK_BASIC_AUTH}"
      # Specify the internal server port to the dashboard service
      - "traefik.http.services.dashboard.loadbalancer.server.port=8080"
      # Pass the original Host header to the backend
      - "traefik.http.services.dashboard.loadbalancer.passhostheader=true"
    restart: unless-stopped