# Example compose file, in your real compose file replace the whoami service with your service

version: '3.4'
services:
  lb:
    build: .
    environment:
      - APP_NAME=whoami # The name of the service to load balance
      - APP_PORT=2001 # The port of the service to load balance, default '80'
    ports:
      - "80:80"
    deploy:
      placement:
        constraints: [node.role == manager] # Required for swarm mode, lb should be on manager node
    depends_on:
      - whoami # The name of your service to load balance

  # Using whoami as an example, replace with your actual service to load balance
  whoami:
    image: traefik/whoami
    command:
      # It tells whoami to start listening on 2001 instead of 80
      - --port=2001