I have been unable to find a good public image that runs Robot Framework using Python v3.x on Ubuntu v18.x. A colleague built an image and I'm using it as a base but My robot script is failing to connect to the site and I've been spinning my wheels for far too long. It's time to reach out to the community for assistance!
I have a simple robot framework script (see below) that connects to a site (chrome headless) and validates the title. It's working find on my Ubuntu workstation but when I run a docker container atop that workstation - it just fails to connect. Initially, I thought it was a plumbing issue but that isn't the case. Below are the steps that I've taken along with the robot code that works on my workstation but not the container:
Confirm connection is working from container:
curl -o /dev/null -s -w %{http_code} https://www.google.com(this returns a 200)Ensure the versions of python3, pip3 and ubuntu are the same on my workstation and container
Ensure pip3 libraries are the same (except for a few that I know I don't need and yes, I know I have a couple more installed than what I need) - here is the list from a
pip3 freezecommand:
asn1crypto==0.24.0
certifi==2020.4.5.1
chardet==3.0.4
coverage==5.2
cryptography==2.1.4
decorator==4.4.2
idna==2.6
importlib-metadata==1.7.0
jsonpath-rw==1.4.0
jsonpath-rw-ext==1.2.2
keyring==10.6.0
keyrings.alt==3.0
pbr==5.4.5
pluggy==0.13.1
ply==3.11
py==1.9.0
pycrypto==2.6.1
pygobject==3.26.1
pyxdg==0.25
requests==2.23.0
robotframework==3.1.1
robotframework-jsonlibrary==0.3.1
robotframework-requests==0.7.0
robotframework-seleniumlibrary==4.1.0
SecretStorage==2.3.1
selenium==3.141.0
six==1.11.0
tox==3.0.0
urllib3==1.22
virtualenv==16.7.10
zipp==3.1.0
And now the robot script (again, works on my workstation, just not on the container)
*** Settings ***
Documentation
... Basic Test for Google.com in headless mode
Library Collections
Library DateTime
Library Dialogs
Library OperatingSystem
Library SeleniumLibrary
Library String
Library RequestsLibrary
Library JSONLibrary
Suite Setup Setup Environment and Open Browser
Suite Teardown Close All Browsers
*** Variables ***
${BROWSER} HeadlessChrome
${SITE_URL} https://www.google.com
*** Test Cases ***
Title Test
Title Should Be Google
*** Keywords ***
Open Chrome Browser To URL
[Documentation] Open Chrome browser and navigate to URL with browser options set
[Tags] open_chrome_browser
${browserOptions} Run Keyword If 'Headless' in '${BROWSER}' Set Headless Chrome Options
Create Webdriver Chrome chrome_options=${browserOptions}
Go To ${SITE_URL}
Maximize Browser Window
Browser timeout and speed
[Documentation]
... Set browser timeout and speed
Set Selenium Timeout 30s
Set Selenium Speed 0s
Set Headless Chrome Options
[Documentation]
... Set the Chrome options for running in headless mode. Restrictions do not apply to headless mode.
[Tags] headless_chrome_options
${chromeOptions} Evaluate sys.modules['selenium.webdriver'].ChromeOptions() sys
Call Method ${chromeOptions} add_argument test-type
Call Method ${chromeOptions} add_argument --headless
Call Method ${chromeOptions} add_argument --disable-extensions
Call Method ${chromeOptions} add_argument --disable-gpu
Call Method ${chromeOptions} add_argument --disable-dev-shm-usage
Call Method ${chromeOptions} add_argument --no-sandbox
[Return] ${chromeOptions}
Setup Environment and Open Browser
[Documentation]
... This keyword will establish the environment variables and open a browser
[Tags] simple_test
Open Chrome Browser To URL
Browser timeout and speed
- After running
robot -b debug.log testgoogle.robotthe debug log shows this interesting bit:
20200820 11:40:53.410 - DEBUG - Traceback (most recent call last):
File "/usr/local/lib/python3.6/dist-packages/SeleniumLibrary/__init__.py", line 467, in run_keyword
return DynamicCore.run_keyword(self, name, args, kwargs)
File "/usr/local/lib/python3.6/dist-packages/SeleniumLibrary/base/robotlibcore.py", line 102, in run_keyword
return self.keywords[name](*args, **kwargs)
File "/usr/local/lib/python3.6/dist-packages/SeleniumLibrary/keywords/element.py", line 569, in click_link
self.find_element(locator, tag='link').click()
File "/usr/local/lib/python3.6/dist-packages/SeleniumLibrary/base/context.py", line 74, in find_element
return self.element_finder.find(locator, tag, True, required, parent)
File "/usr/local/lib/python3.6/dist-packages/SeleniumLibrary/locators/elementfinder.py", line 76, in find
% (element_type, locator))
20200820 11:40:53.410 - INFO - +--- END KW: SeleniumLibrary.Click Link (74)
20200820 11:40:53.410 - INFO - +-- END KW: LoginHandler.User Logout (75)
Any thoughts or suggestions on troubleshooting steps?
Thanks much!
