Prepare linux VMs for packaging as a Vagrant Box

cube-it.sh

#!/bin/bash 

# Dawson Reid
# Feb 25, 2015

# Note : Currently only supports Debian.

VAGRANT_USERNAME="vagrant"
VAGRANT_PASSWORD="vagrant"
LANGUAGE_LOCAL="en_US"

# run as root. this should not be a problem because this script it intended to be 
# executed on a disposable VM.  
sudo su root

if id -u $1 >/dev/null 2>&1; then
  echo "$VAGRANT_USERNAME already exsists."
else
  adduser $VAGRANT_USERNAME
fi
echo $VAGRANT_PASSWORD | passwd $VAGRANT_USERNAME --stdin

# give the vagrant user password-less sudo
echo "$VAGRANT_USERNAME ALL=(ALL) NOPASSWD: ALL" >> "/etc/sudoers.d/$VAGRANT_USERNAME"

# sudo is required from this point forward because we are now executing as the 
# vagrant user.

apt-get update && apt-get install build-essential git openssh-server curl dkms linux-headers-generic

# disable SSHD DNS
echo "UseDNS no" >> /etc/ssh/sshd_config

# set language settings
locale-gen $LANGUAGE_LOCAL.UTF-8
dpkg-reconfigure locales
echo "LANG=\"$LANGUAGE_LOCAL.UTF-8\"" >> /etc/default/locale
echo "LANGUAGE=\"$LANGUAGE_LOCAL\"" >> /etc/default/locale

# -----
# Setup SSH
# -----

sudo su $VAGRANT_USERNAME

mkdir $HOME/.ssh
curl 'https://raw.githubusercontent.com/mitchellh/vagrant/master/keys/vagrant.pub' >> /home/vagrant/.ssh/authorized_keys
# set owner and permissions
#chown -R vagrant /home/vagrant/.ssh # not required because we are operating as the vagrant user
chmod 0700 $HOME/.ssh
chmod 0600 $HOME/.ssh/authorized_keys

sudo su root
service ssh restart

I still need to download and install the virtual box guest additions and disable password-less login.