nginx-proxy/test/test_virtual-path/test_forwarding.yml

services:
  web1:
    image: web
    expose:
      - "81"
    environment:
      WEB_PORTS: "81"
      VIRTUAL_HOST: "www.nginx-proxy.tld"
      VIRTUAL_PATH: "/web1/"
      VIRTUAL_DEST: "/"

  sut:
    image: nginxproxy/nginx-proxy:test
    volumes:
      - /var/run/docker.sock:/tmp/docker.sock:ro
      - ./certs:/etc/nginx/certs:ro
    environment:
      - DEFAULT_ROOT=301 http://$$host/web1$$request_uri