Zalenium is a highly flexible and auto-scalable Docker container-based Selenium Grid Infrastructure. It has the feature to spin up selenium docker containers instantly as nodes without any manual intervention. It also has a video recording feature that can be viewed using a VNC player which is hosted within the live preview board. Click here to learn more...
Zalenium – Dockerized Selenium Grid with Auto-Scale of Nodes
Click here for "A Handbook on Zalenium - An Advanced Selenium Grid Infrastructure with Auto-Scaling Docker Containers"