Rancheros tls example

Booted a rancheros v0.4.1 vm and tried:

$ docker ps
>> Cannot connect to the Docker daemon. Is the docker daemon running on this host?

after following this example.

Can someone point me to some documentation about how to get this going?

Currently, TLS is broken in v0.4.0 and v0.4.1. It will be fixed in v0.4.2.