Selenium video container not capturing video

Question

I'm attempting to record a video from a Selenium test and so far, it's not working.

• I can see my test progressing using NoVNC on port 7900
• Test completes with expected assertions in VSCode's terminal
• The selenium-video container's log window isn't showing any issues nor is it showing feedback of processing test results.

I'm using PHPUnit under CakePHP.

My Docker configuration:

selenium:
  container_name: selenium
  image: selenium/standalone-edge:latest
  shm_size: 2gb
  networks:
    - frontend
    - backend
  ports:
    - "4444:4444"
    - "7900:7900"
  environment:
    TZ: ${TIMEZONE}
    LANG: en_US.UTF-8 
    LC_ALL: en_US.UTF-8
    LANGUAGE: en_US.UTF-8
  volumes:
    - "$LOCAL_FOLDER:/mnt/local_folder"

selenium-video:
  container_name: selenium-video
  image: selenium/video:ffmpeg-7.1-20250123
  networks:
    - frontend
    - backend
  environment:
    - DISPLAY_CONTAINER_NAME=selenium
    - SE_NODE_GRID_URL=http://selenium:4444
#      - FILE_NAME=chrome_video.mp4
    - SE_VIDEO_FILE_NAME=auto
  volumes:
    - "$LOCAL_FOLDER:/videos"

Inspiration: https://github.com/SeleniumHQ/docker-selenium/blob/trunk/docker-compose-v3-video.yml

Edit: perhaps it's container standalone-edge vs. node-edge issue?

Solution

I was missing environment variables, essentially (ie. SE_NODE_PORT and SE_VIDEO_RECORD_STANDALONE).

selenium-video:
  container_name: selenium-video
  image: selenium/video:ffmpeg-7.1-20250123
  networks:
    - frontend
    - backend
  environment:
    - DISPLAY_CONTAINER_NAME=selenium
    - SE_NODE_GRID_URL=http://selenium:4444
#      - FILE_NAME=chrome_video.mp4
    - SE_VIDEO_FILE_NAME=auto
    - SE_NODE_PORT=4444
    - SE_VIDEO_RECORD_STANDALONE=true
  volumes:
    - "$LOCAL_FOLDER:/videos"

Also need the following configured client, particularly the se:recordVideo to control video capture

// Start a browser session
$capabilities = DesiredCapabilities::microsoftEdge();
$chrome_options = (new ChromeOptions)->addArguments(['--lang' => 'en']);

//set language
$capabilities->setCapability('goog:chromeOptions', $chrome_options);

// Set the options in the capabilities
$capabilities->setCapability('platformName', 'linux');
$capabilities->setCapability('se:name', basename(__FILE__, '.php'));//video prefix, session gets appended
$capabilities->setCapability('se:recordVideo', 'false');//may not want to record every test
$capabilities->setCapability('se:screenResolution', '1920x1080');//resolution

$this->driver = RemoteWebDriver::create('http://selenium:4444/wd/hub', $capabilities);

Answer 1

Did you set the capability on the client? options = ChromeOptions() options.set_capability('se:recordVideo', True)