vol-12345678|171.213.234.123
You have to use
update-rc.d mountec2vol start 47 S . stop 35 0 6 . start 37 6 .
to add this script to startup. This script also additional code to mount mysql data directory and nginx directories from EBS. You can skip that part.
#! /bin/sh
#
# /etc/init.d/mountec2vol
#
# chkconfig: 234 20 50
# description: Assigns an EC2 EBS Volume to a device and mounts the device
#
# To add this as a service run:
# /sbin/chkconfig --add mountec2vol
#
# VARS
#
DEV="/dev/sdh"
MOUNT_POINT="/vol"
EC2_LOG='/var/log/ec2.log';
SELF=$(cd $(dirname $0); pwd -P)/$(basename $0)
export JAVA_HOME=/usr/lib/jvm/java-6-sun-1.6.0.13/
export EC2_PRIVATE_KEY=/root/.ec2/pk.pem
export EC2_CERT=/root/.ec2/cert.pem
export EC2_HOME=/usr/local/src/ec2-api-tools-1.3-36506/
PATH=$PATH:$HOME/bin:$EC2_HOME/bin
MAX_TRIES=60
attach_ebs()
{
/bin/echo "=====================================" | tee -a $EC2_LOG
/bin/echo "Date: "`date` | tee -a $EC2_LOG;
/bin/echo "Attaching Elastic Block Store Volumes." | tee -a $EC2_LOG
ec2-attach-volume $VOL -i $INSTANCE -d $DEV 1>&2 2>>$EC2_LOG
CTR=0
while [ ! -e "$DEV" ]; do
/bin/sleep 1
CTR=`expr $CTR + 1`
if [ $CTR -eq $MAX_TRIES ]
then
/bin/echo "WARNING: Cannot attach volume $VOL to $DEV -- Giving up after $MAX_TRIES attempts" | tee -a $EC2_LOG
exit 1
fi
done
}
mount_ebs()
{
/bin/echo "Checking if $MOUNT_POINT is present" | tee -a $EC2_LOG
if [ ! -d $MOUNT_POINT ]; then
mkdir $MOUNT_POINT 1>&2 2>>$EC2_LOG
fi
/bin/echo "Mounting EBS to /vol " | tee -a $EC2_LOG
/bin/mount $DEV $MOUNT_POINT 1>&2 2>>$EC2_LOG
}
mount_mysql_dirs()
{
/bin/echo "Mounting mysql dirs" | tee -a $EC2_LOG
/bin/mount /etc/mysql/ 1>&2 2>>$EC2_LOG
/bin/mount /var/lib/mysql/ 1>&2 2>>$EC2_LOG
/bin/mount /var/log/mysql/ 1>&2 2>>$EC2_LOG
/bin/mount /usr/local/nginx/ 1>&2 2>>$EC2_LOG
}
unmount_mysql_dirs()
{
set +e;
/bin/echo "stopping mysql" | tee -a $EC2_LOG
/etc/init.d/mysql stop;
set -e;
/bin/echo "Unmounting mysql dirs" | tee -a $EC2_LOG
/bin/umount /etc/mysql/ 1>&2 2>>$EC2_LOG
/bin/umount /var/lib/mysql/ 1>&2 2>>$EC2_LOG
/bin/umount /var/log/mysql/ 1>&2 2>>$EC2_LOG
}
unmount_nginx_dirs()
{
set +e;
/bin/echo "stopping nginx" | tee -a $EC2_LOG
/etc/init.d/nginx stop;
set -e;
/bin/echo "Unmounting nginx dirs" | tee -a $EC2_LOG
/bin/umount /usr/local/nginx/ 1>&2 2>>$EC2_LOG
}
unmount_ebs()
{
/bin/echo "Unmounting Elastic Block Store Volumes." | tee -a $EC2_LOG
/bin/umount $MOUNT_POINT 1>&2 2>>$EC2_LOG
}
detach_ebs()
{
/bin/echo "Detaching Elastic Block Store Volumes." | tee -a $EC2_LOG
ec2-detach-volume $VOL 1>&2 2>>$EC2_LOG
}
populate_aws_data()
{
/bin/echo "Populating AWS data" | tee -a $EC2_LOG
INSTANCE=`curl http://169.254.169.254/latest/meta-data/instance-id 2> /dev/null`
USERDATA=`curl http://169.254.169.254/1.0/user-data 2>/dev/null`;
}
parse_user_args()
{
/bin/echo "Parsing user_args " | tee -a $EC2_LOG
VOL=${USERDATA%|*};
IP=${USERDATA#*|};
echo "usedata vol ip";
echo $USERDATA;
echo $VOL;
echo $IP;
}
bind_ip()
{
/bin/echo "Associating ip address: $IP to $INSTANCE" | tee -a $EC2_LOG
ec2-associate-address -i $INSTANCE $IP;
}
# start/stop functions for OS
case "$1" in
start)
populate_aws_data;
parse_user_args;
bind_ip;
attach_ebs;
mount_ebs;
mount_mysql_dirs;
sh -x /vol/ec2_stuff/everytime_by_mountec2.sh;
;;
stop)
unmount_mysql_dirs;
unmount_nginx_dirs;
unmount_ebs;
detach_ebs;
;;
restart)
set +e;
$SELF stop;
set -e;
sleep 60;
$SELF start
;;
*)
echo "Usage: $0 {start|stop|restart}" | tee -a $EC2_LOG
exit 1
esac
exit 0
