How can I extend my Selenium Grid setup using Docker Compose?

How can I extend my Selenium Grid setup using Docker Compose?

You can extend your Selenium Grid setup by adding more nodes or configuring different browser versions in your Docker Compose file. Would you like a sample configuration?

Yes, please provide a sample Docker Compose configuration for adding Chrome and Firefox nodes.

Here's a sample configuration:

version: '3'
services:
  selenium-hub:
    image: selenium/hub
    ports:
      - "4444:4444"
  chrome:
    image: selenium/node-chrome
    depends_on:
      - selenium-hub
    environment:
      - HUB_HOST=selenium-hub
  firefox:
    image: selenium/node-firefox
    depends_on:
      - selenium-hub
    environment:
      - HUB_HOST=selenium-hub

This will set up a Selenium Hub with Chrome and Firefox nodes.

How do I scale the number of nodes in this setup?

You can scale the nodes by using the deploy section in your Docker Compose file. For example:

  chrome:
    deploy:
      replicas: 5

This will create 5 replicas of the Chrome node.

What if I want to run tests in parallel?

You can run tests in parallel by using a test framework that supports parallel execution, like TestNG or JUnit, and configuring your tests to utilize multiple browser instances.