如何编写Dockerfile以包含chromedriver

Question

我是Dockerfile和Selenium的新手。我当时正在用硒进行网络抓取并截屏。我正在尝试将其固定化。我的这个问题似乎在几个问题中得到了回答，但它并没有解决我的错误。仅供参考，我使用的是Windows笔记本电脑。

屏幕截图代码在我的本地机器上工作，但dockerfile似乎给了我错误。

我正在尝试使用这个版本的chromedriver=89.0.4389.82

这是我更新的Dockefile，

FROM python:3.6
RUN pip install --upgrade pip && pip install pytest && pip install pytest-mock && pip install pytest-smtp && pip install mock 
pip install schedule && pip install selenium && pip install Selenium-Screenshot && pip install python-dateutil
# For running code
COPY src/screenshotcode.py /
RUN wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add -
RUN echo "deb http://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google.list
RUN apt-get update -y
RUN apt-get install -y google-chrome-stable
RUN apt-get install libxi6 libgconf-2-4 -y
ENV CHROMEDRIVER_VERSION 2.19
ENV CHROMEDRIVER_DIR /chromedriver
RUN mkdir -p $CHROMEDRIVER_DIR
# Download and install Chromedriver
RUN wget -q --continue -P $CHROMEDRIVER_DIR "http://chromedriver.storage.googleapis.com/$CHROMEDRIVER_VERSION/chromedriver_linux64.zip"
RUN unzip $CHROMEDRIVER_DIR/chromedriver* -d $CHROMEDRIVER_DIR
# Put Chromedriver into the PATH
ENV PATH $CHROMEDRIVER_DIR:$PATH
CMD [ "python", "screenshotcode.py" ]

我的屏幕截图代码，

import time
from Screenshot import Screenshot_Clipping
from selenium.common.exceptions import NoSuchElementException
from selenium.webdriver import Chrome
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.chrome.options import Options
from email_it import email_it
from environmental_variables import environmental_variables
from error_alert_email import error_alert_email
from selenium import webdriver
def screenshot():
ob=Screenshot_Clipping.Screenshot()

chrome_options = Options()

chrome_options.add_argument('--start-maximized')    
chrome_options.add_argument('--start-fullscreen')
chrome_options.add_argument('--no-sandbox')
chrome_options.add_argument('--headless')
chrome_options.add_argument('--disable-gpu')

driver = webdriver.Chrome(executable_path = r"C:UsersmeDocumentsProjectschromedriver.exe")
print('taking screenshot...')
img_url=ob.full_Screenshot(driver, path = path, image_name = label)
print('closing driver...')    
driver.close()
screenshot()

编辑：我收到以下错误

PS C:UsersmeDocumentsProjects> docker run screenshot
File "scheduler.py", line 16, in <module>
from screenshot import screenshot
File "/screenshotcode.py", line 72, in <module>
screenshot()
File "/screenshotcode.py", line 32, in screenshot
driver = webdriver.Chrome()
File "/usr/local/lib/python3.6/site-packages/selenium/webdriver/chrome/webdriver.py", line 81, in __init__
desired_capabilities=desired_capabilities)
File "/usr/local/lib/python3.6/site-packages/selenium/webdriver/remote/webdriver.py", line 157, in __init__
self.start_session(capabilities, browser_profile)
File "/usr/local/lib/python3.6/site-packages/selenium/webdriver/remote/webdriver.py", line 252, in start_session
response = self.execute(Command.NEW_SESSION, parameters)
File "/usr/local/lib/python3.6/site-packages/selenium/webdriver/remote/webdriver.py", line 321, in execute
self.error_handler.check_response(response)
File "/usr/local/lib/python3.6/site-packages/selenium/webdriver/remote/errorhandler.py", line 242, in check_response
raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.WebDriverException: Message: unknown error: Chrome failed to start: exited abnormally
(Driver info: chromedriver=2.19.346067 (6abd8652f8bc7a1d825962003ac88ec6a37a82f1),platform=Linux 5.4.72-microsoft-standard-WSL2 x86_64)

Answer 1

您在代码中将chromedriver设置为：

driver = webdriver.Chrome(executable_path = r"C:UsersmeDocumentsProjectschromedriver.exe")

但在你的案卷中你有/usr/local/bin/chromedriver所以你需要把你的代码改成

driver = webdriver.Chrome(executable_path = "/usr/local/bin/chromedriver")