docker-compose.yml

version: '3.7'
networks:
  private:
    driver: overlay
services:
  hub:
   image: selenium/hub
   ports:
     - "4444:4444"
   volumes:
     - /dev/shm:/dev/shm
   environment:
     GRID_BROWSER_TIMEOUT: 360000
     GRID_TIMEOUT: 360000
     GRID_CLEAN_UP_CYCLE: 600000
     GRID_UNREGISTER_IF_STILL_DOWN_AFTER: 500000
     GRID_NEW_SESSION_WAIT_TIMEOUT: 6000
   deploy:
      mode: replicated
      replicas: 1
      placement:
        constraints: [node.role == manager]     
  chrome:
    image: selenium/node-chrome-debug
    entrypoint: 
      bash -c 'SE_OPTS="-host $$HOSTNAME -port 61000" /opt/bin/entry_point.sh'
    ports:
     - "61000:5900"
    volumes:
      - /dev/shm:/dev/shm
    environment:
      HUB_HOST: hub
      HUB_PORT: 4444
      NODE_MAX_INSTANCES: 5
      NODE_MAX_SESSION: 5
    deploy:
      mode: replicated
      replicas: 1
      restart_policy:
        condition: none
      placement:
        constraints: [node.role == manager]
  chromeBuddy:
    image: selenium/node-chrome-debug
    entrypoint: 
      bash -c 'SE_OPTS="-host $$HOSTNAME -port 61001" /opt/bin/entry_point.sh'
    ports:
     - "61001:5901"
    volumes:
      - /dev/shm:/dev/shm
    environment:
      HUB_HOST: hub
      HUB_PORT: 4444
      NODE_MAX_INSTANCES: 5
      NODE_MAX_SESSION: 5
    deploy:
      mode: replicated
      replicas: 1
      restart_policy:
        condition: none
      placement:
        constraints: [node.role == manager]