"bad request" apache2 error w traefik 2.5 & webtrees 1.7.19 docker images

Traefik Traefik v2 (latest)
1

I am trying to use traefik as reverse proxy to direct HTTPS internet traffic to a web app called webtrees. Both traefik and webtrees are running in docker containers.

I set the traefik container port 443:8081 and webtrees container port 8081:443 hoping that traefik takes incoming 443 traffic, sends it to the webtrees service which receives it internally on 8081 but mapped to the container's port 443. But of course it's not working (or I wouldn't be posting).

Webtrees runs apache2 which is throwing a "Bad Request...you're speaking plain HTML to an SSL-enabled server port..." error when I connect. So, seems like traefik is indeed routing to webtrees but not as HTTPS?

# traefik.toml static config file created 23-jan-2022:

[entryPoints]
  [entryPoints.websecure]
    address = ":443"
    [entryPoints.websecure.http]
      [entryPoints.websecure.http.tls]
        certResolver = "lets-encrypt"
  [entrypoints.webtrees]
    address = ":8081"

[api]
  dashboard = true
#  dynamic api config (for dashboard) in traefik's yaml file

[providers.docker]
  endpoint = "unix:///var/run/docker.sock"
  #domain = "mrmr.pro"
  watch = true
  network = "dweb"
  #exposedbydefault = false

[certificatesResolvers.lets-encrypt.acme]
  email = "redacted@protonmail.ch"
  storage = "acme.json"
  [certificatesResolvers.lets-encrypt.acme.tlsChallenge]

[log]
  level = "ERROR"
  filePath = "/logs/traefik.log"

[accessLog]
  filePath = "/logs/traefik-access.log"

# docker-compose.yml for traefik v2.x reverse proxy container
# created 23-jan-2022

# NB: Host rule uses backticks to quote!  So nonintuitive!

version: '3'

services:
  traefik:
    image: traefik:v2.5
    restart: always
  # Here's the docker network we created: 
    networks:
      - dweb
    ports:
      - 443:8081
    labels:
      - traefik.enable=true
      - traefik.docker.network=dweb
      - traefik.http.routers.api.rule=Host(`traefik.mydom.pro`)
      - traefik.http.routers.api.service=api@internal
      - traefik.http.routers.api.middlewares=auth
      - traefik.http.routers.api.tls=true
      - traefik.http.routers.api.tls.certresolver=lets-encrypt
      - traefik.http.middlewares.auth.basicauth.users=redacted:$$apr2$$6sNEg4kB$KnvnKHdlDeUK.wIXw/
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
      - /opt/traefik/traefik.toml:/traefik.toml
      - /opt/traefik/acme.json:/acme.json
      - /opt/traefik/logs:/logs
    container_name: traefik

networks:
  dweb:
    external: true

And finally the webtrees yml file:

# docker-compose.yml for webtrees 
# written 05-jan-2022 by fgb
version: '2'
services:
             webtrees:
                     image: dtjs48jkt/webtrees:v1.7.10
                     ports:
                       # - 443:443
                             - 8081:443
                     depends_on:
                             - db
                     volumes:
                             - /var/www/html/webtrees/data:/var/www/html/data
                             - /var/www/html/webtrees:/var/www/html
                     environment:
                             GROUP_ID: 501
                     networks:
                             - dweb
                             - internal
                     labels:
                             - traefik.enable=true
                             - traefik.http.routers.webtrees.rule=Host(`boohoo.mydom.pro`)
                             - traefik.http.routers.webtrees.tls=true
                             - traefik.http.routers.webtrees.tls.certresolver=lets-encrypt
                             - traefik.docker.network=dweb
             db:
                     image: mariadb:latest
                     restart: always
                     volumes:
                             - /var/lib/mysql:/var/lib/mysql
                     environment:
                             MYSQL_ROOT_PASSWORD: redacted@hooha
                     ports:
                             - 3306:3306
                     networks:
                             - internal
                     labels:
                             - traefik.enable=false
networks:
            dweb:
                    external: true
            internal:

Any suggestions appreciated.

2

This issue has been solved. As the author I would delete this post but can't see how to do that, sorry.