在docker-comush中运行python硒

Question

我试图在docker compose中运行python selenium。我有以下文件：

docker撰写。yml：

version: '3'

services:
  app:
    build:
      context: .
      dockerfile: Dockerfile
    depends_on:
      - chrome
    ports:
      - '8443:8443'

  chrome:
    image: selenium/node-chrome:3.14.0-gallium
    volumes:
      - /dev/shm:/dev/shm
    depends_on:
      - hub
    environment:
      HUB_HOST: hub

  hub:
    image: selenium/hub:3.14.0-gallium
    ports:
      - "4444:4444"

Dockerfile：

FROM    python:latest
COPY    test.py /code/test.py
WORKDIR /code
RUN     pip install --upgrade pip
RUN     pip install pytest
RUN     pip install pytest-asyncio
RUN     pip install selenium

测验py:

from selenium import webdriver
from selenium.webdriver.common.desired_capabilities import DesiredCapabilities

driver = webdriver.Remote(
        command_executor='http://hub:4444/wd/hub',
        desired_capabilities=DesiredCapabilities.CHROME,
        )

print(driver)

我跑：

docker-compose build
docker-compose run python test.py

我在测试中发现了一个连接被拒绝的错误。在尝试创建webdriver时使用py。

'NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7ffb3b34d550>: Failed to establish a new connection: [Errno 111] Connection refused')'

查看日志，hub和chrome驱动程序似乎已启动并运行，chrome驱动程序已连接到hub。我可以从应用程序ping hub和chrome容器。有什么想法吗？

Answer 1

我有一个非常相似的设置，我能看到的唯一区别是你没有在chrome实例下给出HUB_PORTarg：

environment:
    HUB_HOST: hub
    HUB_PORT: 4444

我用来设置的例子如下：SeleniumHQ/docker selenium

Answer 2

以下是一个工作版本：在测试之前，还要确保等待hub准备就绪链接准备就绪：https://github.com/SeleniumHQ/docker-selenium#waiting-为电网做好准备

version: "3.6"
services:
  selenium-hub:
    restart: always
    image: selenium/hub:3.14.0
    container_name: selenium-hub
    ports:
      - "4444:4444"

 chrome:
    restart: always
    image: selenium/node-chrome-debug:3.14.0
    ports:
      - "5900-5999:5900"
    depends_on:
      - selenium-hub
    environment:
      HUB_HOST: selenium-hub
      HUB_PORT_4444_TCP_ADDR: selenium-hub
      HUB_PORT_4444_TCP_PORT: 4444
      DBUS_SESSION_BUS_ADDRESS: "/dev/null"
    links:
      - selenium-hub:hub