No sshd service running inside container

[huornlmj]

ctf-challenges/linux/Where am I/Dockerfile

Line 19 in 33ef02b

CMD ["/bin/ash", "-c", "/usr/sbin/sshd -D & nc -lkp 9999 -e /script.sh"]

After deployment and using nc to connect to the port 9999, I receive the "Where am I?" prompt. I go go the /root/.ssh/ directory to locate the private key and run:

$ ssh root@localhost -i id_rsa

But I don't get a returning connection or response. There doesn't appear to be any SSH service running or listening in the container on port 22.