💻 Selenium Hub (Chrome and Firefox)

Selenium integration allows you to process websites that require javascript or have some more advanced protection barriers. To use this functionality, you need to set up a Selenium environment with Firefox. Add the following configuration to your docker-compose.yml:

services:
  selenium-firefox:
    container_name: selenium-firefox
    image: selenium/node-firefox:4.27.0-20241204
    shm_size: 2gb
    environment:
      - SE_EVENT_BUS_HOST=selenium-hub
      - SE_EVENT_BUS_PUBLISH_PORT=4442
      - SE_EVENT_BUS_SUBSCRIBE_PORT=4443
      - SE_ENABLE_TRACING=false
      - SE_NODE_MAX_SESSIONS=10
      - SE_NODE_OVERRIDE_MAX_SESSIONS=true
    entrypoint: bash -c 'SE_OPTS="--host $$HOSTNAME" /opt/bin/entry_point.sh'
    depends_on:
      - selenium-hub

  selenium-hub:
    image: selenium/hub:4.27.0-20241204
    container_name: selenium-hub
    environment:
      - SE_ENABLE_TRACING=false
      - GRID_MAX_SESSION=10
      - GRID_BROWSER_TIMEOUT=10
      - GRID_TIMEOUT=10
    ports:
      - 4442:4442
      - 4443:4443
      - 4444:4444

• shm_size: Sets the size of the shared memory for Firefox (2GB recommended)
• SE_NODE_MAX_SESSIONS: Maximum number of concurrent sessions per node
• GRID_MAX_SESSION: Maximum number of concurrent sessions on the hub
• GRID_BROWSER_TIMEOUT and GRID_TIMEOUT: Timeouts in seconds

After configuring Selenium, make sure to set the SELENIUM_HOST variable in your environment to point to the Selenium hub (usually selenium-hub:4444).