convert docker images to rootfs

Motiejus Jakštys ef777d9e86 'want' can also accept different types		2021-05-24 00:11:58 +03:00
rootfs	'want' can also accept different types	2021-05-24 00:11:58 +03:00
BUILD	adding tests	2021-05-24 00:11:57 +03:00
main.go	gazelle?	2021-05-24 00:11:57 +03:00