Chrome crashes no matter what in Selenium docker image,

[Manu Adina-Zada]

Hi,

I've been trying to run Chrome in the selenium docker image (--platform=linux/amd64 selenium/standalone-chrome), and no matter what I try it keeps crashing inside the container.

I'm using python to start the chrome,

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

I've tried many options, and these 3 options are the ones that suggested the most, and Chrome still crashes.

However, for the final container that I'm going to run - chrome needs to run without the headless mode. The whole idea is to run chrome inside the container and run an application in the browser window to collect some data.

I get the following error,

Traceback (most recent call last):
  File "asset-audit-chrome.py", line 23, in <module>
    driver = webdriver.Chrome(options=options)
  File "/usr/local/lib/python3.8/dist-packages/selenium/webdriver/chrome/webdriver.py", line 81, in __init__
    super().__init__(
  File "/usr/local/lib/python3.8/dist-packages/selenium/webdriver/chromium/webdriver.py", line 106, in __init__
    super().__init__(
  File "/usr/local/lib/python3.8/dist-packages/selenium/webdriver/remote/webdriver.py", line 288, in __init__
    self.start_session(capabilities, browser_profile)
  File "/usr/local/lib/python3.8/dist-packages/selenium/webdriver/remote/webdriver.py", line 381, in start_session
    response = self.execute(Command.NEW_SESSION, parameters)
  File "/usr/local/lib/python3.8/dist-packages/selenium/webdriver/remote/webdriver.py", line 444, in execute
    self.error_handler.check_response(response)
  File "/usr/local/lib/python3.8/dist-packages/selenium/webdriver/remote/errorhandler.py", line 249, in check_response
    raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.WebDriverException: Message: unknown error: Chrome failed to start: crashed.
  (chrome not reachable)
  (The process started from chrome location /usr/bin/google-chrome is no longer running, so ChromeDriver is assuming that Chrome has crashed.)

Any help would be appreciated, I've spent countless hours in order to try to get any form of chrome running in the docker selenium container.. to no avail.

Thanks!

Manu

[SuperKevy]

Python. I'm surprised you don't have a simple piece of strut code to test connecting the grid environment.

Personally I don't use docker. Refer to these simple examples to verify your configuration.

• python - Running Selenium with Headless Chrome Webdriver - Stack Overflow  https://stackoverflow.com/questions/53657215/running-selenium-with-headless-chrome-webdriver
• python - Selenium: WebDriverException:Chrome failed to start: crashed as google-chrome is no longer running so ChromeDriver is assuming that Chrome has crashed - Stack Overflow   https://stackoverflow.com/questions/53073411/selenium-webdriverexceptionchrome-failed-to-start-crashed-as-google-chrome-is
• https://stackoverflow.com/questions/45323271/how-to-run-selenium-with-chrome-in-docker Docker configuration.
  

[Serguei Kouzmine]

I believe you can run selenium +  chromium in alpine image headless

[Manu Adina-Zada]

Thanks for trying to help guys,

After few days, I discovered that it works if I run my python by going to using the terminal inside the container.

The whole time, I had a CMD ["python3", "script.py"] in the end of the Dockerfile, and for whatever reason it wouldn't work at all.

I do need this step to be automated, and so I do need to have the CMD inside the Dockerfile to automatically launch the python script..

Any ideas on how to make it work or what the reason of this might be?

- Initially I thought it was some time of race condition problem, so I tried including,

 1. Sleep in the CMD line of the Dockerfile i.e. CMD sleep 10; python3 script.py

 2. Sleep in the python script time.sleep(10) before "driver = webdriver.Chrome(options=options)" line.

Both have not worked, the chrome still crashes when attempting to launch on start with the CMD command in the Dockerfile.

Any help would be appreciated, thanks!

- Manu

[SuperKevy]

See  https://runnable.com/docker/python/dockerize-your-python-application

I assume chrome and chromedriver are synched and work in the image.

[Manu Adina-Zada]

As I've stated previously, the script works fine if I launch the container first with "docker run ... etc", and then use "docker exec .. " to start my python script , or even going into the container's terminal and starting the script through there is fine.

The issue lies with starting the script on startup by having CMD or ENTRYPOINT to start the script on startup.

Any help would be appreciated! Thanks