environemnt vars to set:
NAME = Martin
SSHUSER = martin
SSHPWD = pwdnitram
command to run: [ "/bin/bash", "-c", "echo hello $NAME; tail -f /dev/null" ]
useradd -s /bin/bash $SSHUSER
adduser $SSHUSER sudo
echo $SSHUSER:$SSHPWD | chpasswd
cd /home;
sudo mkdir $SSHUSER
sudo chown $SSHUSER:$SSHUSER $SSHUSER
sudo usermod -d /home/$SSHUSER $SSHUSER
apt-get update && apt-get install -y openssh-server
apt-get install htop
mkdir -p /var/run/sshd
service ssh restart