I suspect Hadoop was just used as an example. For another, I would suggest Concourse (build/CI tool). When I tried it, it was docker images for the default inst

I suspect Hadoop was just used as an example. For another, I would suggest Concourse (build/CI tool). When I tried it, it was docker images for the default install, vague instructions, and a dev forum which seemed rather hostile to anyone asking for support to build or configure outside of containers. Might have changed since then, but a big turn off.