load_awssshkey

#!/bin/sh

default_user="root"
user=${default_user}

homedir=`grep "^${user}:" /etc/passwd | awk -F: '{print $6}'`

ssh_dir="${homedir}/.ssh"
auth_key_file="${ssh_dir}/authorized_keys"


awssshkey=`/usr/bin/curl -sf http://169.254.169.254/latest/meta-data/public-keys/0/openssh-key`

# Need to make the key location variable?
if [ -z "$awssshkey" -a -f /mnt/openssh_id.pub ] ; then
	awssshkey=`cat /mnt/openssh_id.pub`
fi

if [ -z "${awssshkey}" ] ; then
	exit 1
fi	

if [ ! -d "$ssh_dir" ] ; then
	mkdir -p "${ssh_dir}"
	chmod 700 "${ssh_dir}"
	chown "${user}" "${ssh_dir}"
fi

installed=`grep -c "$awssshkey" ${auth_key_file}`

if [ "$installed" = 0 ] ; then
	touch $auth_key_file
	echo "$awssshkey" >> $auth_key_file
fi

chown "${user}" "${auth_key_file}"
chmod 600 "${auth_key_file}"