docker-stack.yml

version: "3.7"

services:

  hub:
    image: vimagick/jsonwire-grid
    ports:
      - "4444:4444"
    deploy:
      replicas: 1
      placement:
        constraints:
          - node.role == manager
      restart_policy:
        condition: on-failure

  firefox:
    image: selenium/node-firefox:3.141.59-xenon
    entrypoint: bash -c 'SE_OPTS="-host $$HOSTNAME -port 5555" /opt/bin/entry_point.sh'
    volumes:
      - /dev/shm:/dev/shm
    environment:
      - HUB_HOST=hub
      - HUB_PORT=4444
    depends_on:
      - hub
    deploy:
      replicas: 10
      placement:
        constraints:
          - node.role == worker
      restart_policy:
        condition: on-failure

  chrome:
    image: selenium/node-chrome:3.141.59-xenon
    entrypoint: bash -c 'SE_OPTS="-host $$HOSTNAME -port 5555" /opt/bin/entry_point.sh'
    volumes:
      - /dev/shm:/dev/shm
    environment:
      - HUB_HOST=hub
      - HUB_PORT=4444
    depends_on:
      - hub
    deploy:
      replicas: 2
      placement:
        constraints:
          - node.role == manager
      restart_policy:
        condition: on-failure