Ephemeral SSHD for containers
Set entrypoint to esshd executable location.
Argument #1 set to the host:port.
Argument #2 set to the binary or command line to execute upon SSH login.
Example:
/esshd 127.0.0.1:2222 /bin/bash
If /esshd.txt is found inside the container image then it will be used as the SSH login banner.