Changed the ENTRYPOINT which was failing with a Extra argument /bin/bash...

[bjonnh]

....

[np]

I got the same error. Could this be a change of semantics in docker entrypoint/cmd.
Docker version 1.1.0

[Terr]

I needed to change this as well, before Docker 1.0 even I believe.

[DiGitHubCap]

I also needed to change this to get it to work properly. Docker version 1.0.1.

[nelaaro]

I had a similar problem,

Attaching to docker_sshd_1
sshd_1  | Extra argument /usr/sbin/sshd.
docker_sshd_1 exited with code 1

After reading
https://medium.freecodecamp.org/docker-entrypoint-cmd-dockerfile-best-practices-abc591c30e21
https://stackoverflow.com/questions/54328586/docker-run-fails-error-extra-argument-xxx/54328587#54328587

I ended up doing the following

ENTRYPOINT ["/usr/sbin/sshd" ]
# by defualt start sshd as backgournd daemon
CMD ["-D" ]

My container now starts up correctly and I can pass arguments to it at run time.
docker run -p 2022:22 -it test:latest -d