Take a chef node name and tag it as that on ec2

tag_instances

#!/bin/bash

# Grabs the list of nodes from chef and adds a tag for
# node_name to the appropriate instance

CMDNAME=tag_instances
TMPFILE=/tmp/${CMDNAME}.out.$$

ec2-describe-tags | grep node_name > $TMPFILE
retval=$?
[ $retval -ne 0 ] && echo "Error running 'ec2-describe-tags'" && cat $TMPFILE && exit $retval

for i in `knife node list -F j | grep "\"" | sed -e "s/\,//" -e "s/\"//g"`; do
	grep -q $i $TMPFILE
	if [ $? -eq 0 ]; then
		instance_id=`knife node show -F j $i | grep instance_id | awk '{print $2}' | awk -F, '{print $1}' | sed -e "s/\"//g"`
		grep $instance_id $TMPFILE | grep -q $i
		retval=$?
		if [ $retval -ne 0 ]; then
			#echo "ec2addtag $instance_id -t node_name=$i"
			ec2addtag $instance_id -t node_name=$i
			retval=$?
			[ $retval -ne 0 ] && echo "Error running 'ec2addtag'" && exit $retval
		else
			echo "$instance_id:$i already tagged"
		fi
	else
		echo "Skipping $i - Not AWS"
	fi
done

[ -e $TMPFILE ] && rm $TMPFILE