Entrypoint and cmd are moving targets

[mpl]

Hey,

not really your fault as it seems docker is constantly evolving, but basically your Dockerfile has the same problem as in https://github.com/tomparys/docker-skype-pulseaudio or moby/moby#5539 , i.e. on my machine (Docker version 1.1.1, build bd609d2),
docker run -p 127.0.0.1:2222:22 chrome
will fail with:
Extra argument /bin/bash.

The two possible workarounds are:

1. replace ENTRYPOINT with CMD in the Dockerfile, or run with:
2. docker run -p 127.0.0.1:2222:22 --entrypoint /bin/bash chrome -c "/usr/sbin/sshd -D"

kudos though, as I really needed something like that to test some HTTPS certs stuff.