Start an EC2 instance and associate it with an EIP

ec2-init.sh

#! /bin/sh

INSTANCE_ID=''
ELASTIC_IP=''

if [[ `ec2-describe-instances` =~ 'running' ]]; then
	echo "AWS instance is already running !"
	exit 2
else
	ec2start $INSTANCE_ID
	sleep 10
fi

done="false"
while [ "$done" != "true" ]
do
	if [[ `ec2-describe-instances` =~ 'running' ]]; then
		done="true"
		echo "AWS instance is running !"
	fi
done

ec2-associate-address -i $INSTANCE_ID $ELASTIC_IP
echo "Successfully associated the elastic IP to your instance on AWS !"