docker-compose.yml

version: '2.3'

services:

  xvfbsrv:
    image: gym_mupen64plus
    ports:
      - "6000:6000"
    entrypoint: [
      'Xvfb', ':0',
      '-screen', '0',
      '640x480x24',
      '-fbdir', '/dev/shm', # Framebuffer to use shared memory
      '-ac', # Disable access control - enables access by any host (https://www.x.org/archive/X11R6.8.1/doc/Xserver.1.html)
      '-listen', 'tcp' # Allow remote connections over TCP
    ]


  vncsrv:
    image: gym_mupen64plus
    environment:
      - DISPLAY=xvfbsrv:0
    ports:
      - "5900:5900"
    entrypoint: [ 'x11vnc', '-forever', '-viewonly', '-shared', '-nopw', '-noshm' ]
    depends_on: [ xvfbsrv ]


  emulator:
    image: gym_mupen64plus
    environment:
      - DISPLAY=xvfbsrv:0
    volumes:
      - type: bind
        source: "${LOCAL_ROM_PATH}" # Since ROMs are not included in the image, bind mount a local path (set this value in the .env file)
        target: /src/gym-mupen64plus/gym_mupen64plus/ROMs
    command: [
      'mupen64plus',
      '--nospeedlimit',
      '--nosaveoptions',
      '--resolution', '640x480',
      '--gfx', 'mupen64plus-video-glide64.so',
      '--audio', 'dummy',
      '--input', '/usr/local/lib/mupen64plus/mupen64plus-input-bot.so',
      '--set', 'Input-Bot-Control0[plugged]=1',
      '--set', 'Input-Bot-Control0[host]=agent',
      '--set', 'Input-Bot-Control0[port]=8082',
      '/src/gym-mupen64plus/gym_mupen64plus/ROMs/marioKart.n64'
    ]
    depends_on: [ xvfbsrv, agent ]


  agent:
    image: gym_mupen64plus
    build:
      context: .
      dockerfile: Dockerfile
    environment:
      - DISPLAY=xvfbsrv:0
      - EXTERNAL_EMULATOR=True
    command: [ 'python', '-u', 'gym-mupen64plus/example.py' ] # -u for unbuffered output so logs show immediately (in theory)
    depends_on: [ xvfbsrv ]