anyone know http://boot-clj.com hacked ?
I wouldn't say it's been hacked. The domain expired long ago and somebody else bought it, to sell boots, apparently. The Boot site is still available at https://boot-clj.github.io/
I was looking at this site wrong http://boot-clj.com/blog/docker-boot , https://github.com/boot-clj/docker-boot thank you.