Traefik version 2 only shows 404 or no website at all

You can find a working example for traefik 2.2.1. Also, you can check full setup gist: https://gist.github.com/fatihyildizhan/8f124039a9bd3801f0caf3c01c3601fb

I prefer to use traefik.yml with version 2.0. It looks simple and many people are familiar with the YAML files.

[Traefik v2.0] - docker-compose.yml  with httpChallenge    version: '3.7'    services:      traefik:        image: traefik:v2.2.1        container_name: traefik        restart: unless-stopped        security_opt:          - no-new-privileges:true        networks:          - proxy        ports:          - 80:80          - 443:443        volumes:          - /etc/localtime:/etc/localtime:ro          - /var/run/docker.sock:/var/run/docker.sock:ro          - ./traefik.yml:/traefik.yml:ro          - ./acme.json:/acme.json        labels:          - "traefik.enable=true"          - "traefik.http.routers.traefik.entrypoints=http"          - "traefik.http.routers.traefik.rule=Host(`traefik.your-domain.com`)"          - "traefik.http.middlewares.traefik-auth.basicauth.users=username:hashed-password"          - "traefik.http.middlewares.traefik-https-redirect.redirectscheme.scheme=https"          - "traefik.http.routers.traefik.middlewares=traefik-https-redirect"          - "traefik.http.routers.traefik-secure.entrypoints=https"          - "traefik.http.routers.traefik-secure.rule=Host(`traefik.your-domain.com`)"          - "traefik.http.routers.traefik-secure.middlewares=traefik-auth"          - "traefik.http.routers.traefik-secure.tls=true"          - "traefik.http.routers.traefik-secure.tls.certresolver=http"          - "traefik.http.routers.traefik-secure.service=api@internal"          - "traefik.http.services.traefik.loadbalancer.server.port=8080"    networks:      proxy:        external: true    [Traefik v2.0] - traefik.yml with httpChallenge    api:      dashboard: true    # Writing Logs to a File, in JSON    log:      level: DEBUG      filePath: "log-file.log"      format: json    # Configuring a buffer of 100 lines    accessLog:      filePath: "log-access.log"      bufferingSize: 100      entryPoints:      http:        address: ":80"      https:        address: ":443"    providers:      docker:        endpoint: "unix:///var/run/docker.sock"        exposedByDefault: false    certificatesResolvers:      http:        acme:          email: your-email.com          storage: acme.json          httpChallenge:            entryPoint: http        [Traefik v2.0] - your-container docker-compose.yml    version: '3.7'    services:        your-container-name:          image: docker.pkg.github.com/username/repo-name/image-name:latest          container_name: your-container-name          restart: unless-stopped          security_opt:            - no-new-privileges:true          networks:            - proxy          volumes:            - /etc/localtime:/etc/localtime:ro            - /var/run/docker.sock:/var/run/docker.sock:ro            - ./data:/data          labels:            - "traefik.enable=true"            - "traefik.http.routers.your-container-name.entrypoints=http"            - "traefik.http.routers.your-container-name.rule=Host(`your-container-name.your-domain.com`)"            - "traefik.http.middlewares.your-container-name-https-redirect.redirectscheme.scheme=https"            - "traefik.http.routers.your-container-name.middlewares=your-container-name-https-redirect"            - "traefik.http.routers.your-container-name-secure.entrypoints=https"            - "traefik.http.routers.your-container-name-secure.rule=Host(`your-container-name.your-domain.com`)"            - "traefik.http.routers.your-container-name-secure.tls=true"            - "traefik.http.routers.your-container-name-secure.tls.certresolver=http"            - "traefik.http.routers.your-container-name-secure.service=your-container-name"            - "traefik.http.services.your-container-name.loadbalancer.server.port=80"            - "traefik.docker.network=proxy"    networks:      proxy:        external: true