version: "3"
services:
    web1:
      image: busybox
      command: ["/bin/busybox", "httpd", "-f", "-h", "/var/www/html", "-p", "8001"]
      working_dir: /var/www/html
      ports:
      - 8001:8001
      volumes:
      - ./test1.txt:/var/www/html/index.txt:ro
    web2:
      image: busybox
      command: ["/bin/busybox", "httpd", "-f", "-h", "/var/www/html", "-p", "8002"]
      working_dir: /var/www/html
      ports:
      - 8002:8002
      volumes:
      - ./test2.txt:/var/www/html/index.txt:ro