nginx-proxy/test/test_unreachable-network/test_unreachable-network.yml

networks:
  netA:
  netB:

services:
  nginx-proxy:
    container_name: reverseproxy
    networks:
      - netA

  webA:
    networks:
      - netA
    image: web
    expose:
      - 81
    environment:
      WEB_PORTS: "81"
      VIRTUAL_HOST: webA.nginx-proxy

  webB:
    networks:
      - netB
    image: web
    expose:
      - 82
    environment:
      WEB_PORTS: "82"
      VIRTUAL_HOST: webB.nginx-proxy