具有主机网络模式的容器的Traefik =>错误的网关

Question

组成一个声明traefik反向代理的容器：

reverse-proxy:
    image: traefik:v2.0
    container_name: "traefik"
    command:
      - "--api.insecure=true"
      - "--providers.docker=true"
      - "--providers.docker.exposedbydefault=false"
      - "--entrypoints.web.address=:80"
    ports:
      - "80:80"
      - "8080:8080"
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
    restart: always

还有一个plex服务：

plex:
    image: linuxserver/plex
    container_name: plex
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.plex.rule=Host(`plex.baptiste-arnaud.fr`)"
      - "traefik.http.routers.plex.entrypoints=web"
      - "traefik.http.services.plex.loadbalancer.server.port=32400"
    network_mode: host
    environment:
      - PUID=1000
      - PGID=1000
      - VERSION=docker
    volumes:
      - /home/pi/hdd1/plex/library:/config
      - /home/pi/hdd1/plex/tvshows:/tv
      - /home/pi/hdd1/plex/movies:/movies
    restart: unless-stopped

它使用host network模式。我尝试请求plex.baptiste-arnaud.fr，它给了我一个“错误的网关”。我还有其他运作良好的服务。当容器与主机网络一起启动时，它可以工作吗？