Traefik 1.7 doesn't generate HTTPS certificate for each one of my internal sites

I've followed the next proceed (https://sysadmins.co.za/traefik-and-portainer-on-docker-swarm-with-letsencrypt/) and also reviewed the doc traefik about letsencrypt

I have in my swarm 2 internal sites.

  • traefik.${WEB_DOMAIN}
  • portainer.${WEB_DOMAIN}

The swarm is right now a lab environment in my laptop, and $WEB_DOMAIN is not (yet) a public domain ( so I have added these 2 sites in my /etc/hosts in order to browse them inside my laptop)

I expect 2 different certificates one for each site but I can see only one and always for CN= TRAEFIK DEFAULT CERT

This is my configuration for docker swarm

version: "3.3"
services:
  traefik:
    image: traefik:v1.7
    command: --docker \
      --docker.swarmmode \
      --docker.domain=${WEB_DOMAIN} \
      --docker.watch \
      --docker.exposedbydefault=false \
      --docker.endpoint=unix:///var/run/docker.sock \ 
      --constraints=tag==net-public \
      --defaultentrypoints=https,http
      --entrypoints='Name:http Address::80' \
      --entrypoints='Name:https Address::443 TLS' \
      --retry \
      --acme \
      --acme.email=test@${WEB_DOMAIN} \
      --acme.storage=/certificates/acme.json \
      --acme.entryPoint=https \
      --acme.httpChallenge.entryPoint=http \
      --acme.onHostRule=true \
      --acme.onDemand=false \ 
      --acme.acmelogging=true \
      --logLevel=DEBUG \
      --accessLog \
      --api \
      --metrics \
      --metrics.prometheus

    networks:
      - net-public
    ports:
      - "80:80"
      - "443:443"
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
      - traefik-public-certificates:/certificates 
      - /dev/null:/traefik.toml
    deploy:
      placement:
        constraints: [node.role==manager]

      labels:
        - "traefik.frontend.rule=Host:traefik.${WEB_DOMAIN}"
        - "traefik.enable=true"
        - "traefik.port=8080"
        - "traefik.tags=net-public"
        - traefik.docker.network=net-public
        - "traefik.redirectorservice.frontend.entryPoints=http" 
        - "traefik.redirectorservice.frontend.redirect.entryPoint=https"
        - "traefik.webservice.frontend.entryPoints=https"
        - "traefik.frontend.auth.basic.users=${WEB_ADMIN_USERNAME}:${WEB_ADMIN_HASHED_PASSWORD}"

  agent:
    image: portainer/agent
    environment:
      AGENT_CLUSTER_ADDR: tasks.agent
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
      - /var/lib/docker/volumes:/var/lib/docker/volumes
    networks:
      - net-public
    deploy:
      mode: global
      placement:
        constraints:
          - node.platform.os == linux

  portainer:
    image: portainer/portainer
    command: -H tcp://tasks.agent:9001 --tlsskipverify
    volumes:
      - portainer-data:/data
    networks:
      - net-public
    deploy:
      placement:
        constraints:
          - node.role == manager
      labels:
        - traefik.frontend.rule=Host:portainer.${WEB_DOMAIN}
        - traefik.enable=true
        - traefik.port=9000
        - traefik.tags=net-public
        - traefik.docker.network=net-public
        - traefik.redirectorservice.frontend.entryPoints=http
        - traefik.redirectorservice.frontend.redirect.entryPoint=https
        - traefik.webservice.frontend.entryPoints=https

networks:
  net-public:
    external: true

volumes:
   portainer-data:
   traefik-public-certificates: