Proxy to FRP Server with Https

Traefik Traefik v2
1

I would like to access my frps subdomain using a letsencrypt ssl certificate, this is my docker-compose:

 sudo vi docker-compose.yml
      - "--log.level=DEBUG"
      - "--api.insecure=true"
      - "--providers.docker=true"
      - "--providers.docker.exposedbydefault=false"
      - "--entrypoints.web.address=:80"
      - "--entrypoints.websecure.address=:443"
      - "--entrypoints.web.http.redirections.entryPoint.to=websecure"
      - "--entrypoints.web.http.redirections.entryPoint.scheme=https"
      - "--entrypoints.web.http.redirections.entryPoint.permanent=true"
      - "--certificatesresolvers.myresolver.acme.httpchallenge=true"
      - "--certificatesresolvers.myresolver.acme.httpchallenge.entrypoint=web"
   #  - "--certificatesresolvers.myresolver.acme.caserver=https://acme-staging-v02.api.letsencrypt.org/directory"
      - "--certificatesresolvers.myresolver.acme.email=my@mail.com"
      - "--certificatesresolvers.myresolver.acme.storage=/letsencrypt/acme.json"
    ports:
      - "80:80"
      - "443:443"
      - "8080:8080"
    volumes:
      - "./letsencrypt:/letsencrypt"
      - "/var/run/docker.sock:/var/run/docker.sock:ro"

  frp:
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.frp.rule=Host(`frps.mydomain.com`)"
      - "traefik.http.routers.frp.entrypoints=websecure"
      - "traefik.http.routers.frp.tls=true"
      - "traefik.http.routers.frp.tls.certresolver=myresolver"
      - "traefik.http.services.frp.loadbalancer.server.port=8081"
#      - "traefik.tcp.routers.frp.rule=HostSNI(`frps.mydomain.com`)"
#      - "traefik.tcp.routers.frp.entrypoints=web"
#      - "traefik.tcp.routers.frp.certresolver=myresolver"
#      - "traefik.tcp.routers.frp.tls=true"
#      - "traefik.tcp.routers.frp.service=frpserver"
#      - "traefik.tcp.services.frpserver.loadbalancer.server.port=8081"



    image: cloverzrg/frps-docker
    ports:
      - "7000:7000"
      - "7500:7500"
      - "8081:8081"
    network_mode: host
    restart: always
    command: -c /conf/frps.ini
    volumes:
      - ./frp:/conf

and my frps.ini

[common]
bind_port = 7000
token = aNolEYwREgOD
vhost_http_port = 8081
vhost_https_port = 8443

dashboard_port = 7500
dashboard_user = admin
dashboard_pwd = admin

tcp_mux = true
max_pool_count = 10

it works without ssl when I add the port of the frp server but when I try to access https://frps.mydomain.com I can see the following error in traefiks logs:

time="2021-10-12T12:29:56Z" level=debug msg="'502 Bad Gateway' caused by: dial tcp 127.0.0.1:8081: connect: connection refused"