traefik/integration/resources/compose/healthcheck.yml

version: "3.8"
services:
  whoami1:
    image: traefik/whoami

  whoami2:
    image: traefik/whoami

  whoami3:
    image: traefik/whoami

  whoami4:
    image: traefik/whoami

networks:
  default:
    name: traefik-test-network
    external: true