Traefik fix 502 for empty backends

traefik-stack.yml

version: "3.8"

networks:
  traefik:

services:

  traefik:
    image: traefik:v2.4
    networks:
      - traefik
    ports:
      - "80:80/tcp"     # http entrypoint
      - "8080:8080/tcp" # Traefik Dashboard
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock # needed for service discovery
    environment:
      - "TRAEFIK_API_INSECURE=true"
      - "TRAEFIK_API_DASHBOARD=true"
      - "TRAEFIK_PROVIDERS_DOCKER=true"
      - "TRAEFIK_PROVIDERS_DOCKER_EXPOSEDBYDEFAULT=false"
      - "TRAEFIK_PROVIDERS_DOCKER_SWARMMODE=true"
      - "TRAEFIK_ENTRYPOINTS_HTTP=true"
      - "TRAEFIK_ENTRYPOINTS_HTTP_ADDRESS=:80"
    deploy:
      labels:
        - "traefik.enable=true"
        - "traefik.http.routers.traefik-502.entrypoints=http"
        - "traefik.http.routers.traefik-502.rule=PathPrefix(`/`)"
        - "traefik.http.routers.traefik-502.priority=1"
        - "traefik.http.services.traefik-502.loadbalancer.server.port=0"

  static-app:
    image: valian/nginx-test-page
    networks:
      - traefik
    deploy:
      replicas: 2
      labels:
        - "traefik.enable=true"
        - "traefik.http.routers.static-app.entrypoints=http"
        - "traefik.http.routers.static-app.rule=Host(`static-app.127.0.0.1.sslip.io`)"
        - "traefik.http.services.static-app.loadbalancer.server.port=80"
        - "traefik.docker.network=traefik"

  another-app:
    image: nginx:alpine
    networks:
      - traefik
    deploy:
      replicas: 1
      labels:
        - "traefik.enable=true"
        - "traefik.http.routers.another-app.entrypoints=http"
        - "traefik.http.routers.another-app.rule=Host(`another-app.127.0.0.1.sslip.io`)"
        - "traefik.http.services.another-app.loadbalancer.server.port=80"
        - "traefik.docker.network=traefik"

After all this, it still doesn't seem possible to use Traefik with only a local IP address without a special DNS server or modified system files.

Every other proxy solution I have used I can simply add my machine's IP address. You should not be required to complicate your solution unnecessarily to use the core functionality of this product. I work in a small team under a major institute and can't edit their DNS server. I also am not interested in worrying about maintaining individual machine's system files.

If you are saying that this is possible, can we have an example please? I want to type http://remote-machine-ip-addr/docker-service into my web browser. I feel like the documentation does not cover local development or deployment very well. You must go straight into the public hosting realm to have a minimally viable product.