Comment by rmdashrfroot

I wrote a collection of Dockerfiles for images running Python 2.7 or Python 3.6 + Selenium with either Chrome or Firefox and using Xvfb for the X display (necessary for running Selenium headlessly).

https://github.com/seanpianka/docker-python-xvfb-selenium-ch...

Using this, in conjunction with AWS Step Functions, Lambda, and ECS, it became merely cents a month to run a headless scraper task in the cloud.