使用天翼云弹性伸缩服务时自动初始化云主机数据盘教程

cd /脚本目录  

cd /hom

vi 脚本名称

vi fdisk_mount.sh

#!/bin/bash

bash_scripts_name=fdisk_mount.sh ini_path=/home/fdisk.ini

disk=

size=

mount=

partition=

function get_disk_from_ini()

{

disk=`cat $ini_path|grep disk| awk -F '=' '{print $2}'`

if [ $disk = "" ]

then

echo "disk is null in file,exit"

exit

fi

result=`fdisk -l $disk | grep $disk`

if [ $result = 1 ]

then

echo "disk path is not exist in linux,exit"

exit

fi

}

function get_size()

{

size=`cat $ini_path| grep size|awk -F '=' '{print $2}'`

if [ $size = "" ]

then

echo "size is null,exit"

exit

fi

}

function make_fs_mount()

{

mkfs.ext4 -T largefile $partition

if [ $? -ne 0 ]

then

echo "mkfs disk failed,exit"

exit

fi

dir=`cat $ini_path|grep mount |awk -F '=' '{print $2}'`

if [ $dir = "" ]

then

echo "mount dir is null in file,exit"

exit

fi

if [ ! -d $dir ]

then

mkdir -p $dir fi

mount $partition $dir

if [ $? -ne 0 ]

then

echo "mount disk failed,exit"

exit

fi

echo "$partition $dir ext3 defaults 0 0" >> /etc/fstab

}

function remove_rc()

{

cat /etc/rc.local | grep $bash_scripts_name

if [ $? ne 0 ]

then

sed -i '/'$bash_scripts_name'/d' /etc/rc.local

fi

}

################## start #########################1、判断配置文件是否存在

if [ ! -f $ini_path ]

then

echo "ini file not exist,exit"

exit

fi

##2、获取配置文件中 disk 指定的设备路径

get_disk_from_ini

##3、获取配置文件中 size 分区大小

get_size

##4、将磁盘分区

fdisk $disk <<EOF

n

p

1

1

$size

w

EOF

partition=`fdisk -l $disk 2>/dev/null| grep "^/dev/[xsh].*d" | awk '{print $1}'`

##5、格式化分区，挂载分区到对应目录

make_fs_mount

##6、修改开机启动项，避免重试执行

remove_rc

echo 'SUCESS'

Vi fdisk.ini

disk=/dev/xdev

size=+100G

mount=/opt/test

Vi /etc/rc.local

/home/fdisk_mount.sh