docker-compose.yml

version: "3"
services:
  chrome:
    image: selenium/node-chrome:4.5.0
    volumes:
      - /dev/shm:/dev/shm
    depends_on:
      - selenium-hub
    environment:
      - SE_EVENT_BUS_HOST=selenium-hub
      - SE_EVENT_BUS_PUBLISH_PORT=4442
      - SE_EVENT_BUS_SUBSCRIBE_PORT=4443
      - SE_NODE_MAX_INSTANCES=4
      - SE_NODE_MAX_SESSIONS=4
      - SE_NODE_OVERRIDE_MAX_SESSIONS=true

  firefox:
    image: selenium/node-firefox:4.5.0
    volumes:
      - /dev/shm:/dev/shm
    depends_on:
      - selenium-hub
    environment:
      - SE_EVENT_BUS_HOST=selenium-hub
      - SE_EVENT_BUS_PUBLISH_PORT=4442
      - SE_EVENT_BUS_SUBSCRIBE_PORT=4443
      - SE_NODE_MAX_INSTANCES=1
      - SE_NODE_MAX_SESSIONS=1
      - SE_NODE_OVERRIDE_MAX_SESSIONS=true


  selenium-hub:
    image: selenium/hub:4.5.0
    container_name: selenium-hub
    ports:
      - "4442:4442"
      - "4443:4443"
      - "4444:4444"