Capybara headless chrome in docker returns DevToolsActivePort file doesn't exist

It seems like the default selenium_chrome_headless settings of capybara aren't sufficient for running in a docker container. I have solved it by changing my spec/support/capybara.rb settings to the following:

# spec/support/capybara.rb# Setup chrome headless driverCapybara.server = :puma, { Silent: true }Capybara.register_driver :chrome_headless do |app|  options = ::Selenium::WebDriver::Chrome::Options.new  options.add_argument('--headless')  options.add_argument('--no-sandbox')  options.add_argument('--disable-dev-shm-usage')  options.add_argument('--window-size=1400,1400')  Capybara::Selenium::Driver.new(app, browser: :chrome, options: options)endCapybara.javascript_driver = :chrome_headless# Setup rspecRSpec.configure do |config|  config.before(:each, type: :system) do    driven_by :rack_test  end  config.before(:each, type: :system, js: true) do    driven_by :chrome_headless  endend

Especially "--disable-dev-shm-usage" should not be forgotten, as it solves limited resource problems in docker, as noted in: https://github.com/GoogleChrome/puppeteer/issues/1834

Edit:I haven't made any changes to the above Dockerfile