nginx-proxy/test/test_loadbalancing.yml

services:
  loadbalance-hash:
    image: web
    expose:
      - "81"
    environment:
      WEB_PORTS: 81
      VIRTUAL_HOST: loadbalance-enabled.nginx-proxy.tld
    labels:
      com.github.nginx-proxy.nginx-proxy.loadbalance: "hash $$remote_addr;"
    deploy:
      replicas: 2

  loadbalance-roundrobin:
    image: web
    expose:
      - "82"
    environment:
      WEB_PORTS: 82
      VIRTUAL_HOST: loadbalance-disabled.nginx-proxy.tld
    deploy:
      replicas: 2

  sut:
    image: nginxproxy/nginx-proxy:test
    volumes:
      - /var/run/docker.sock:/tmp/docker.sock:ro