cannot connect to chrome at 127.0.0.1 (Docker compose)

[benjavides]

I was having this issue when trying to run the included docker-compose

E:\Documents\1_PROJECTS\Mudanza_Alemania\busqueda_depto\flathunter>docker-compose up   
[+] Running 1/1
 ✔ Container flathunter-app-1  Recreated                                                                                                                                                                                                                                                  11.0s 
Attaching to app-1
app-1  | [2024/06/08 22:01:40|config.py               |INFO    ]: Using config path /usr/src/app/config.yaml
app-1  | [2024/06/08 22:01:40|chrome_wrapper.py       |INFO    ]: Initializing Chrome WebDriver for crawler...
app-1  | [2024/06/08 22:01:41|patcher.py              |INFO    ]: patching driver executable /root/.local/share/undetected_chromedriver/undetected_chromedriver
app-1  | Traceback (most recent call last):
app-1  |   File "/usr/src/app/flathunt.py", line 99, in <module>
app-1  |     main()
app-1  |   File "/usr/src/app/flathunt.py", line 95, in main
app-1  |     launch_flat_hunt(config, heartbeat)
app-1  |   File "/usr/src/app/flathunt.py", line 35, in launch_flat_hunt
app-1  |     hunter.hunt_flats()
app-1  |   File "/usr/src/app/flathunter/hunter.py", line 56, in hunt_flats
app-1  |     for expose in processor_chain.process(self.crawl_for_exposes(max_pages)):
app-1  |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
app-1  |   File "/usr/src/app/flathunter/hunter.py", line 35, in crawl_for_exposes
app-1  |     return chain(*[try_crawl(searcher, url, max_pages)
app-1  |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
app-1  |   File "/usr/src/app/flathunter/hunter.py", line 35, in <listcomp>
app-1  |     return chain(*[try_crawl(searcher, url, max_pages)
app-1  |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
app-1  |   File "/usr/src/app/flathunter/hunter.py", line 27, in try_crawl
app-1  |     return searcher.crawl(url, max_pages)
app-1  |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
app-1  |   File "/usr/src/app/flathunter/abstract_crawler.py", line 151, in crawl
app-1  |     return self.get_results(url, max_pages)
app-1  |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
app-1  |   File "/usr/src/app/flathunter/crawler/immobilienscout.py", line 92, in get_results
app-1  |     soup = self.get_page(search_url, self.get_driver(), page_no)
app-1  |                                      ^^^^^^^^^^^^^^^^^
app-1  |   File "/usr/src/app/flathunter/crawler/immobilienscout.py", line 67, in get_driver
app-1  |     self.driver = get_chrome_driver(driver_arguments)
app-1  |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
app-1  |   File "/usr/src/app/flathunter/chrome_wrapper.py", line 69, in get_chrome_driver
app-1  |     driver = uc.Chrome(version_main=chrome_version, options=chrome_options) # pylint: disable=no-member
app-1  |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
app-1  |   File "/usr/local/lib/python3.11/site-packages/undetected_chromedriver/__init__.py", line 466, in __init__
app-1  |     super(Chrome, self).__init__(
app-1  |   File "/usr/local/lib/python3.11/site-packages/selenium/webdriver/chrome/webdriver.py", line 45, in __init__
app-1  |     super().__init__(
app-1  |   File "/usr/local/lib/python3.11/site-packages/selenium/webdriver/chromium/webdriver.py", line 61, in __init__
app-1  |     super().__init__(command_executor=executor, options=options)
app-1  |   File "/usr/local/lib/python3.11/site-packages/selenium/webdriver/remote/webdriver.py", line 208, in __init__
app-1  |     self.start_session(capabilities)
app-1  |   File "/usr/local/lib/python3.11/site-packages/undetected_chromedriver/__init__.py", line 724, in start_session
app-1  |     super(selenium.webdriver.chrome.webdriver.WebDriver, self).start_session(
app-1  |   File "/usr/local/lib/python3.11/site-packages/selenium/webdriver/remote/webdriver.py", line 292, in start_session
app-1  |     response = self.execute(Command.NEW_SESSION, caps)["value"]
app-1  |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
app-1  |   File "/usr/local/lib/python3.11/site-packages/selenium/webdriver/remote/webdriver.py", line 347, in execute
app-1  |     self.error_handler.check_response(response)
app-1  |   File "/usr/local/lib/python3.11/site-packages/selenium/webdriver/remote/errorhandler.py", line 229, in check_response
app-1  |     raise exception_class(message, screen, stacktrace)
app-1  | selenium.common.exceptions.WebDriverException: Message: unknown error: cannot connect to chrome at 127.0.0.1:40595
app-1  | from chrome not reachable
app-1  | Stacktrace:
app-1  | #0 0x55703b22ce3a <unknown>
app-1  | #1 0x55703af162a1 <unknown>
app-1  | #2 0x55703af0096f <unknown>
app-1  | #3 0x55703af50825 <unknown>
app-1  | #4 0x55703af470b4 <unknown>
app-1  | #5 0x55703af91b19 <unknown>
app-1  | #6 0x55703af85253 <unknown>
app-1  | #7 0x55703af551c7 <unknown>
app-1  | #8 0x55703af55b3e <unknown>
app-1  | #9 0x55703b1f327b <unknown>
app-1  | #10 0x55703b1f7327 <unknown>
app-1  | #11 0x55703b1dfdae <unknown>
app-1  | #12 0x55703b1f7df2 <unknown>
app-1  | #13 0x55703b1c474f <unknown>
app-1  | #14 0x55703b21c128 <unknown>
app-1  | #15 0x55703b21c2fb <unknown>
app-1  | #16 0x55703b22bf6c <unknown>
app-1  | #17 0x7f43bd5ae134 <unknown>
app-1  |
app-1  | [2024/06/08 22:02:41|__init__.py             |INFO    ]: ensuring close
app-1 exited with code 0

Adding a couple of things to the Dockerfile solved the issue:
After "# Install Chromium"

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

At the end

RUN python chrome_driver_install.py

I didn't made a pull request because I'm not sure if all of this is needed. This was chatGPT suggestion which worked after trying a couple of things.