version: "3"
services:
  firefox:
    image: selenium/node-firefox:beta
    shm_size: 2gb
    restart: always
    depends_on:
      - selenium-hub
    environment:
      - SE_EVENT_BUS_HOST=selenium-hub
      - SE_EVENT_BUS_PUBLISH_PORT=4442
      - SE_EVENT_BUS_SUBSCRIBE_PORT=4443
      - SE_DRAIN_AFTER_SESSION_COUNT=1
    ports: 
 #     - "4446:4444"
      - "7902:7900"
  firefox2:
    image: selenium/node-firefox:beta
    shm_size: 2gb
    restart: always
    depends_on:
      - selenium-hub
    environment:
      - SE_EVENT_BUS_HOST=selenium-hub
      - SE_EVENT_BUS_PUBLISH_PORT=4442
      - SE_EVENT_BUS_SUBSCRIBE_PORT=4443
      - SE_DRAIN_AFTER_SESSION_COUNT=1
    ports: 
 #     - "4446:4444"
      - "7903:7900"

  firefox3:
    image: selenium/node-firefox:beta
    shm_size: 2gb
    restart: always
    depends_on:
      - selenium-hub
    environment:
      - SE_EVENT_BUS_HOST=selenium-hub
      - SE_EVENT_BUS_PUBLISH_PORT=4442
      - SE_EVENT_BUS_SUBSCRIBE_PORT=4443
      - SE_DRAIN_AFTER_SESSION_COUNT=1

  firefox4:
    image: selenium/node-firefox:beta
    shm_size: 2gb
    restart: always
    depends_on:
      - selenium-hub
    environment:
      - SE_EVENT_BUS_HOST=selenium-hub
      - SE_EVENT_BUS_PUBLISH_PORT=4442
      - SE_EVENT_BUS_SUBSCRIBE_PORT=4443
      - SE_DRAIN_AFTER_SESSION_COUNT=1

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