Running against a Remote Browser Instance

[geofflane]

I run Devcontainers for my code, so I have a docker-compose file that has the app code, a database, and I'm trying to add a selenium/standalone-chrome or selenium/standalone-firefox container to run selenium remotely.

Configuring the app in config/test.exs

config :wallaby,
  driver: Wallaby.Selenium,
  otp_app: :zenith,
  selenium: [
    remote_url: "http://selenium:4444/",
    capabilities: %{
      javascriptEnabled: true,
      browserName: "chrome"
    }
  ]

But running it I get this error:

    ** (RuntimeError) Could not start a new session. No nodes support the capabilities in the request
     Host info: host: '558b2816fa37', ip: '172.18.0.2'
     Build info: version: '4.25.0', revision: '030fcf7918'
     System info: os.name: 'Linux', os.arch: 'amd64', os.version: '6.10.4-linuxkit', java.version: '17.0.12'
     Driver info: driver.version: unknown
     stacktrace:
       (wallaby 0.30.9) lib/wallaby/httpclient.ex:140: Wallaby.HTTPClient.check_for_response_errors/1
       (wallaby 0.30.9) lib/wallaby/httpclient.ex:56: Wallaby.HTTPClient.make_request/5
       (wallaby 0.30.9) lib/wallaby/selenium.ex:112: Wallaby.Selenium.start_session/1
       (wallaby 0.30.9) lib/wallaby.ex:85: Wallaby.start_session/1
       (wallaby 0.30.9) lib/wallaby/feature.ex:161: Wallaby.Feature.Utils.start_session/

How can I run Wallaby against a Selenium instance running in a separate container (like I would assume people do in CI) and have to connect? Any examples of running this way?