Over time, we had created a significant set of Selenium tests which we were running over a Selenium Grid. The runtime had reached five hours, and we were feeling the pain in the feedback delays which revealed the need for parallel execution. We had to scale test but we couldn't run more than 5 concurrent tests as the containers hit performance issues and we had a hard time getting reliable tests outcome. This led us to move to AWS Lambda.
Target Audience: tester
Prerequisites: Knowledge of selenium grid