Olaf Flebbe you brought up one of the think I'd like to do but nearly no time to do it.
Actually we can remove entire deploy series of docker images because now we're running docker natively using docker compose. Hence, ssh daemon and inserting vagrant key would be completed needless.
We can directly switch the image in provisioner to bigtop/puppet series of images.
I remember I've done some tests locally and there's no problem I can recall.
Shall we clean up the deploy directory this time?