What does HackerNews think of docker-selenium?

Same. I had sucess with https://github.com/SeleniumHQ/docker-selenium

In which case you want to probably use their headless Docker containers. https://github.com/SeleniumHQ/docker-selenium

You can also use Puppeteer for this purpose (using headless Chrome) https://github.com/GoogleChrome/puppeteer

Just to throw in another option, there's selenium grid docker containers: https://github.com/SeleniumHQ/docker-selenium. The containers are a bit heavy IMHO (I suppose because they're aimed more at 'testing' instead of scraping), but I think there are a few Alpine Linux versions floating around (and easy enough to set up yourself).

Handy for more tricky sorts of web scraping, or if you want to use chromium in mobile emulation mode (causing websites with an 'app version' to switch over to a HTTP-JSON SPA in many cases). I was particularly excited to discover you can set the 'http_proxy' env variable on a "per-browser node" basis (and do fun stuff like installing DNS caching daemons, round-robinning through OpenVPN/squid containers etc.).

Because you can use pre-packaged Selenium in Docker images with a few commands: https://github.com/SeleniumHQ/docker-selenium