services:
  busy:
    image: busybox
    ports:
      - "8081:8080"
      - "8026:8025"
    volumes:
      - ./certs:/certs
      - ./auth.txt:/auth.txt
      - ./users.php:/users.php:ro
    command:
      [
        "/bin/sh", 
        "-c", 
        "cat /auth.txt /users.php /certs/cert1.pem"
      ]