Docker容器无法读取WebDriver文件问题求助

问题详情 #

运行Docker容器时触发NoSuchDriverException，提示无法定位Chrome WebDriver。即使Dockerfile中已将WebDriver文件复制到容器工作目录，问题仍未解决。

错误栈 #

Traceback (most recent call last):
  File "/app/scraper_exe.py", line 3, in <module>
    bot = Scraper()
          ^^^^^^^^^
  File "/app/scraper.py", line 25, in __init__
    self.driver = webdriver.Chrome(service=service, options=options)
                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/selenium/webdriver/chrome/webdriver.py", line 45, in __init__
    super().__init__(
  File "/usr/local/lib/python3.11/site-packages/selenium/webdriver/chromium/webdriver.py", line 51, in __init__
    self.service.path = DriverFinder.get_path(self.service, options)
                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/selenium/webdriver/common/driver_finder.py", line 44, in get_path
    raise NoSuchDriverException(f"Unable to locate or obtain driver for {options.capabilities['browserName']}")
selenium.common.exceptions.NoSuchDriverException: Message: Unable to locate or obtain driver for chrome; For documentation on this error, please visit: https://www.selenium.dev/documentation/webdriver/troubleshooting/errors/driver_location

Dockerfile内容 #

FROM python:3.11.4-bookworm

WORKDIR /app

COPY . /app/

RUN wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add -

RUN sh -c 'echo "deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google-chrome.list'

RUN apt-get -y update

RUN apt-get install -y google-chrome-stable

RUN wget -O /tmp/chromedriver.zip http://chromedriver.storage.googleapis.com/`curl -sS chromedriver.storage.googleapis.com/LATEST_RELEASE`/chromedriver_linux64.zip

RUN apt-get install -yqq unzip

RUN unzip /tmp/chromedriver.zip chromedriver -d /usr/local/bin/

RUN pip3 install -r requirements.txt

CMD ["python", "scraper_exe.py"] 

requirements.txt内容 #

selenium
pandas
urllib3
boto3
click

本地目录结构 #

$ ls
__pycache__/  chromedriver.exe*  data_pipeline_scraper.ipynb  Dockerfile  requirements.txt  scraper.py  scraper_exe.py  

解决方案 #

1. 显式指定ChromeDriver路径 #

在初始化Chrome驱动时，直接指定容器内已安装的ChromeDriver路径，避免Selenium自动查找失败：

from selenium import webdriver
from selenium.webdriver.chrome.service import Service

# 显式指定chromedriver路径
service = Service(executable_path='/usr/local/bin/chromedriver')
options = webdriver.ChromeOptions()
# 添加无头模式等必要配置
options.add_argument('--headless=new')
options.add_argument('--no-sandbox')
options.add_argument('--disable-dev-shm-usage')

self.driver = webdriver.Chrome(service=service, options=options)

2. 确保ChromeDriver具备可执行权限 #

在Dockerfile中添加权限设置命令，保证ChromeDriver能被正常执行：

RUN unzip /tmp/chromedriver.zip chromedriver -d /usr/local/bin/
# 新增权限配置
RUN chmod +x /usr/local/bin/chromedriver

3. 改用Selenium Manager自动管理驱动（推荐） #

Selenium 4.6.0及以上版本自带Selenium Manager，可自动匹配并下载对应版本的ChromeDriver，无需手动处理驱动文件。简化后的Dockerfile如下：

FROM python:3.11.4-bookworm

WORKDIR /app

COPY . /app/

# 安装Chrome浏览器
RUN wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add -
RUN sh -c 'echo "deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google-chrome.list'
RUN apt-get update && apt-get install -y google-chrome-stable

RUN pip3 install -r requirements.txt

CMD ["python", "scraper_exe.py"] 

此时代码无需手动指定驱动路径，Selenium会自动处理：

from selenium import webdriver

options = webdriver.ChromeOptions()
options.add_argument('--headless=new')
options.add_argument('--no-sandbox')
options.add_argument('--disable-dev-shm-usage')

self.driver = webdriver.Chrome(options=options)

4. 验证Chrome与ChromeDriver版本匹配 #

若坚持手动下载驱动，需确保Chrome版本与ChromeDriver版本完全一致：

1. 查看容器内Chrome版本：执行google-chrome --version
2. 替换Dockerfile中的下载命令，指定对应版本的ChromeDriver：

# 示例：Chrome版本为120.0.6099.109时，直接指定版本号下载
RUN wget -O /tmp/chromedriver.zip http://chromedriver.storage.googleapis.com/120.0.6099.109/chromedriver_linux64.zip

内容的提问来源于stack exchange，提问作者Corbie