远程can驱动程序无法连接到docker selenium网格

Question

我在使用webdriver.remote(在码头容器中)连接到另一个selenium网格容器时遇到了问题。这些是我使用webdriver的docker-compose文件和python文件。

python file:

sleep(10)
Options = webdriver.ChromeOptions()
Options.add_argument('--no-sandbox')
Options.add_argument('--headless') 
driver = webdriver.Remote( 
    command_executor= 'http://selenium-hub:4444/wd/hub',
    desired_capabilities = DesiredCapabilities.CHROME,
)

docker-compose file:
version: "3"
services:
  selenium-hub:
    image: selenium/hub:3.14.0
    container_name: selenium-hub
    ports:
      - "9090:4444"
  chromenode:
    image: selenium/node-chrome:3.14.0
    depends_on:
      - selenium-hub
    links:
      - selenium-hub:hub
    environment:
      - HUB_HOST=selenium-hub
      - HUB_PORT=4444
  flask-web:(execute python file)
   image: main
   container_name: template_flask
   depends_on:
      - selenium-hub
      - chromenode
   links:
      - selenium-hub
      - chromenode

我所犯的错误：

MaxRetryError: HTTPConnectionPool(host=‘selenium’，port=4444)：最大重试超过url：

我见过很多关于这个错误的讨论，但仍然无法解决。有人能给我一些提示吗？谢谢!

Answer 1

听起来像是容器之间的网络问题。我建议为所有的容器创建一个网络，这样他们就可以通过使用您的docker文件中定义的服务名称来相互交谈，请参阅：

version: "3"
services:
  hub:
    image: selenium/hub:3
    ports:
      - "4444:4444"
    environment:
      GRID_MAX_SESSION: 16
      GRID_BROWSER_TIMEOUT: 180
      GRID_TIMEOUT: 60
    networks:
      - selenium_net

  chrome:
    image: selenium/node-chrome-debug:3
    container_name: chrome_node
    depends_on:
      - hub
    environment:
      HUB_PORT_4444_TCP_ADDR: hub
      HUB_PORT_4444_TCP_PORT: 4444
      NODE_MAX_SESSION: 4
      NODE_MAX_INSTANCES: 4
    volumes:
      - /dev/shm:/dev/shm
    ports:
      - "9001:5900"
    links:
      - hub
    networks:
      - selenium_net

  firefox:
    image: selenium/node-firefox-debug:3
    container_name: firefox_node
    depends_on:
      - hub
    environment:
      HUB_PORT_4444_TCP_ADDR: hub
      HUB_PORT_4444_TCP_PORT: 4444
      NODE_MAX_SESSION: 5
      NODE_MAX_INSTANCES: 5
    volumes:
      - /dev/shm:/dev/shm
    ports:
      - "9003:5900"
    links:
      - hub
    networks:
      - selenium_net

networks:
   selenium_net:
     driver: bridge
     name: selenium-net