040000 tree 18c9e87cbd1d99b013ad97ff5859e90e3fa84053	docker-build
040000 tree 17d351ef16f72b9c8e378bd44e99d787edc596e7	docker-clean-dangling
040000 tree b685e63a2d1e1eada9746965932f2dc56e9bb78a	docker-clean-image