CODEWITHSUNDEEP
seleniumdocker
Martin Thoma
Martin Thoma

Reputation: 136369

Why does ChromeDriver 2.31 fail to start when run in Docker?

I have a Docker container based on ubuntu:xenial. When I try to run selenium with the Chrome webdriver loads endlessly

>>> from selenium import webdriver
>>> from selenium.webdriver.chrome.options import Options
>>> chrome_options = Options()
>>> chrome_options.add_argument("--headless")
>>> path_to_chromedriver = '/usr/local/bin/chromedriver'
>>> browser = webdriver.Chrome(path_to_chromedriver, chrome_options=chrome_options)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/chrome/webdriver.py", line 69, in __init__
    desired_capabilities=desired_capabilities)
  File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/remote/webdriver.py", line 140, in __init__
    self.start_session(desired_capabilities, browser_profile)
  File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/remote/webdriver.py", line 229, in start_session
    response = self.execute(Command.NEW_SESSION, parameters)
  File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/remote/webdriver.py", line 297, in execute
    self.error_handler.check_response(response)
  File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/remote/errorhandler.py", line 194, in check_response
    raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.WebDriverException: Message: unknown error: Chrome failed to start: crashed
  (Driver info: chromedriver=2.31.488763 (092de99f48a300323ecf8c2a4e2e7cab51de5ba8),platform=Linux 4.10.0-32-generic x86_64)

Steps so far

Fix crash

>>> from selenium import webdriver
>>> browser = webdriver.Chrome()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/chrome/webdriver.py", line 62, in __init__
    self.service.start()
  File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/common/service.py", line 96, in start
    self.assert_process_still_running()
  File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/common/service.py", line 109, in assert_process_still_running
    % (self.path, return_code)
selenium.common.exceptions.WebDriverException: Message: Service chromedriver unexpectedly exited. Status code was: 127

When I tried to find the version of the chromedriver

chromedriver --version

I got the error that the shared library libnss3 was not found. After installing libnss3, it worked.

So the line

RUN apt-get install libnss3

should be added to the Dockerfile.

Fix 'chrome binary not found'

Install Chrome. It is not enough to install the chromedriver_installer via pip.

RUN apt-get install wget
RUN wget https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb
RUN dpkg -i google-chrome-stable_current_amd64.deb; apt-get -fy install

Upvotes: 1

Views: 979

Answers (1)

Tarun Lalwani
Tarun Lalwani

Reputation: 146510

You are trying to create custom images, when standard images are already available. You should be using selenium/chrome-standalone

docker run -d -p 4444:4444 selenium/standalone-chrom

Then in your code launch a RemoteWebdriver

from selenium import webdriver
from selenium.webdriver.common.desired_capabilities import DesiredCapabilities
driver = webdriver.Remote(desired_capabilities=DesiredCapabilities.CHROME)

Upvotes: 1

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