Unable to get owncloud container recognised by traefik

Traefik Traefik v2 (latest)
1

Hello everyone,

I am trying to set up traefik as a reverse proxy handling https for an owncloud instance. Both should be run in docker using two docker-compose files.
So far I was able to start both containers and I am able to log into the traefik dashboard successfully. However, with the owncloud container running, if I try to connect to it using the configured subdomain I keep getting a 404. Traefik seems to find the two other services owncloud relies on, redis and mariadb, but not the owncloud-server itself: it does not show up on the dashboard as an http service. The configurations are further below. All of the environment variables are stored in respective .env files are according to traefik's log seem to expand properly. HTTP_PORT is also set to 8080 for simplicity. Any input is appreciated.

Cheers,
Saph.

traefik's docker-compose.yml

version: '3'
services:
  traefik:
    container_name: traefik
    image: traefik:latest
    command:
      - --entrypoints.web.address=:80
      - --entrypoints.websecure.address=:443
      - --providers.docker
      - --api
      - --certificatesresolvers.le.acme.email=saphieron@gmail.com
      - --certificatesresolvers.le.acme.storage=/acme.json
      - --certificatesresolvers.le.acme.tlschallenge=true
      - --log.filePath=/traefik.log
      - --log.level=DEBUG
    networks:
      - web
      - internal
    ports:
      - 80:80
      - 443:443
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock:ro
      - /etc/localtime:/etc/localtime:ro
      - "./acme.json:/acme.json"
      - "./traefik.log:/traefik.log"

    restart: unless-stopped
    security_opt:
      - no-new-privileges:true
    environment:
      - TRAEFIK_ADMIN=${TRAEFIK_ADMIN}
    labels:
      - "traefik.docker.network=web"
      # dashboard
      - "traefik.http.routers.traefik.rule=Host(`traefik.my.domain`)"
      - "traefik.http.routers.traefik.service=api@internal"
      - "traefik.http.routers.traefik.middlewares=admin"
      - "traefik.http.routers.traefik.tls.certresolver=le"
      - "traefik.http.routers.traefik.entrypoints=websecure"
      - "traefik.http.middlewares.admin.basicauth.users=${TRAEFIK_ADMIN}"

      # global redirect to https
      - "traefik.http.routers.http-catchall.rule=hostregexp(`{host:.+}`)"
      - "traefik.http.routers.http-catchall.entrypoints=web"
      - "traefik.http.routers.http-catchall.middlewares=redirect-to-https"

      # middleware redirect
      - "traefik.http.middlewares.redirect-to-https.redirectscheme.scheme=https"


networks:
  web:
    external: true
  internal:

Owncloud's docker-compose.yml

version: "3"

volumes:
  files:
    driver: local
  mysql:
    driver: local
  redis:
    driver: local

services:
  owncloud:
    image: owncloud/server:${OWNCLOUD_VERSION}
    container_name: owncloud_server
    restart: unless-stopped
    ports:
     - ${HTTP_PORT}:8080
    depends_on:
      - mariadb
      - redis
    environment:
      - OWNCLOUD_DOMAIN=${OWNCLOUD_DOMAIN}
      - OWNCLOUD_DB_TYPE=mysql
      - OWNCLOUD_DB_NAME=owncloud
      - OWNCLOUD_DB_USERNAME=${OWNCLOUD_DB_ADMIN}
      - OWNCLOUD_DB_PASSWORD=${OWNCLOUD_DB_PASSWORD}
      - OWNCLOUD_DB_HOST=mariadb
      - OWNCLOUD_ADMIN_USERNAME=${ADMIN_USERNAME}
      - OWNCLOUD_ADMIN_PASSWORD=${ADMIN_PASSWORD}
      - OWNCLOUD_MYSQL_UTF8MB4=true
      - OWNCLOUD_REDIS_ENABLED=true
      - OWNCLOUD_REDIS_HOST=redis
    networks:
      - web
      - internal
    labels:
      - "traefik.enable=true"
      - "traefik.docker.network=web"
      - "traefik.http.services.owncloud.loadbalancer.server.port=8080"
      - "traefik.http.routers.owncloud.rule=Host(`owncloud.my.domain`)"
      - "traefik.http.routers.owncloud.secure.rule=Host(`owncloud.my.domain`)"

    healthcheck:
      test: ["CMD", "/usr/bin/healthcheck"]
      interval: 30s
      timeout: 10s
      retries: 5
    volumes:
      - files:/mnt/data
      - /var/run/docker.sock:/var/run/docker.sock:root

  mariadb:
    image: mariadb:10.5
    container_name: owncloud_mariadb
    restart: always
    environment:
      - MYSQL_ROOT_PASSWORD=${OWNCLOUD_MARIA_DB_ROOTPW}
      - MYSQL_USER=${OWNCLOUD_MARIA_DB_USER}
      - MYSQL_PASSWORD=${OWNCLOUD_MARIA_DB_PASSWORD}
      - MYSQL_DATABASE=owncloud
    command: ["--max-allowed-packet=128M", "--innodb-log-file-size=64M"]
    healthcheck:
      test: ["CMD", "mysqladmin", "ping", "-u", "root", "--password=${OWNCLOUD_MARIA_DB_ROOTPW}"]
      interval: 10s
      timeout: 5s
      retries: 5
    #volumes:
      #- mysql:/var/lib/mysql

  redis:
    image: redis:6
    container_name: owncloud_redis
    restart: always
    command: ["--databases", "1"]
    healthcheck:
      test: ["CMD", "redis-cli", "ping"]
      interval: 10s
      timeout: 5s
      retries: 5
    volumes:
      - redis:/datamariadb

networks:
  web:
    external: true
  internal: