Traefik Docker Compose Example:

version: '3.7'
networks:
  livedignet:
    external: true
services:
  traefik:
    image: "traefik:2.1"
    container_name: "traefik"
    networks:
      - livedignet
    command:
    # - "--log.level=DEBUG"
      - "--api.insecure=true"
      - "--providers.docker=true"
      - "--providers.docker.exposedbydefault=false"
      - "--entrypoints.web.address=:80"
      - "--entrypoints.websecure.address=:443"
      - "--certificatesresolvers.ldhttpchallenge.acme.httpchallenge=true"
      - "--certificatesresolvers.ldhttpchallenge.acme.httpchallenge.entrypoint=web"
    # When u are on test stage. UnComment the line below.
    # - "--certificatesresolvers.ldhttpchallenge.acme.caserver=https://acme-staging-v02.api.letsencrypt.org/directory"
      - "--certificatesresolvers.ldhttpchallenge.acme.email=your@email.com"
      - "--certificatesresolvers.ldhttpchallenge.acme.storage=/letsencrypt/acme.json"
    ports:
      - "80:80/tcp"
      - "443:443/tcp"
      - "8080:8080/tcp"
    volumes:
      - type: bind
        source: "./letsencrypt"
        target: "/letsencrypt"
      - type: bind
        source: "/var/run/docker.sock"
        target: "/var/run/docker.sock"

Web Application Example:

version: '3.7'
networks:
  livedignet:
    external: true
services:
  livedig:
    image: 'wordpress:latest'
    container_name: "livedig"
    networks:
      - livedignet
    external_links:
      - mysql
    environment:
      WORDPRESS_DB_HOST:      'mysql:3306'
      WORDPRESS_DB_USER:      'mysql_usrname'
      WORDPRESS_DB_PASSWORD:  'mysql_password'
      WORDPRESS_DB_NAME:      'mysql_dbname'
      WORDPRESS_TABLE_PREFIX: 'wp_'
    working_dir: '/var/www/html'
    labels:
      - "traefik.enable=true"

      - "traefik.http.routers.livedig_http.rule=Host(`livedig.com`)"
      - "traefik.http.routers.livedig_http.entrypoints=web"
      - "traefik.http.routers.livedig_http.middlewares=redirect-to-https"
      - "traefik.http.middlewares.redirect-to-https.redirectscheme.scheme=https"

      - "traefik.http.routers.livedig.rule=Host(`livedig.com`)"
      - "traefik.http.routers.livedig.entrypoints=websecure"
      - "traefik.http.routers.livedig.tls.certresolver=ldhttpchallenge"
    ports:
      - '80'
    volumes:
      - type: bind
        source: ./wp-content
        target: /var/www/html/wp-content
        read_only: false