备份项目实例

备份项目实例

1、项目要求

一台 备份服务器 backup 10.0.0.41

两台Web服务器 Web01 10.0.0.7

             Web02 10.0.0.8

Web服务器需要备份的目录：/etc    /service    /var/www/html     /var/spool/cron    /var/log

按天打包，打包后md5sum生成一个校验值，都放在以自己ip地址命名的目录下，最后通过rsync推送到备份服务器

find /root/ -type f -name "*.tar.gz"|xargs md5sum >>check.md5

10 00 * * * /bin/bash /service/scripts/backup.sh

backup服务器：

1. md5sum校验，如果校验失败，发送邮件到运维或运维组
2. 清理工作：保留最近一周以及过去每周六的备份

/backup/10.0.0.7

/backup/10.0.0.8

mail -s "`date +F` 备份失败" xxxxx@qq.com < check.info

10 1 * * * /bin/bash /service/scripts/check_backup.sh

md5sum –c check.md5

2、准备环境

创建需要备份的5个目录，并使目录下有文件

快速安装配置backup服务端rsync –daemon

useradd -M -s /sbin/nologin rsync

mkdir /backup

chown -R rsync:rsync /backup

 

echo '#rsync server

#created by lx 14:18 2015-6-18

##rsyncd.conf start##

uid = rsync

gid = rsync

use chroot = no

max connections = 2000

timeout = 600

pid file = /var/run/rsyncd.pid

lock file = /var/run/rsync.lock

log file = /var/log/rsyncd.log

ignore errors

read only = false

list = false

hosts allow = 192.168.1.0/24

auth users = rsync_backup

secrets file = /etc/rsync.password

#####################################

[backup]

path = /backup' >>/etc/rsyncd.conf

 

echo "rsync_backup:oldboy" >/etc/rsync.password

chmod 600 /etc/rsync.password

rsync --daemon

netstat -lntup|grep 873

3、客户端备份脚本

cd /service/scripts

[root@web02 scripts]# cat backup.sh

#!/bin/bash

####NO.1 tar

IP=`ifconfig eth0|awk -F '[ :]+' 'NR==2{print $4}'`

mkdir -p /backup/$IP

W=`date +%w`

if [ $W -eq 6 ];then

tar zcvf /backup/$IP/6_etc_`date +%F`.tar.gz /etc

tar zcvf /backup/$IP/6_service_`date +%F`.tar.gz /service

tar zcvf /backup/$IP/6_html_`date +%F`.tar.gz /var/www/html

tar zcvf /backup/$IP/6_cron_`date +%F`.tar.gz /var/spool/cron

tar zcvf /backup/$IP/6_log_`date +%F`.tar.gz /var/log

else

tar zcvf /backup/$IP/etc_`date +%F`.tar.gz /etc

tar zcvf /backup/$IP/service_`date +%F`.tar.gz /service

tar zcvf /backup/$IP/html_`date +%F`.tar.gz /var/www/html

tar zcvf /backup/$IP/cron_`date +%F`.tar.gz /var/spool/cron

tar zcvf /backup/$IP/log_`date +%F`.tar.gz /var/log

fi

####NO.2 check

find /backup/$IP -type f -name "*.tar.gz"|xargs md5sum >>/backup/$IP/check_`date +%F`.md5

 

####NO.3 rsync

rsync -avz /backup/ rsync_backup@192.168.1.41::backup --password-file=/etc/rsync.password

打包的脚本代码上也可以采取循环的做法，脚本如下

#!/bin/bash

ip=`ifconfig |awk -F "[: ]+" 'NR==2{print $4}'`

a=`date +%w`

mkdir -p /backup/$ip

DATE=`date -d yesterday +%F`

####NO.1 tar&&check

for i in /etc /service /var/www/html /var/spool/cron /var/log

do

    name=`echo ${i}|awk -F "/" '{print $NF}'`

    if [ $a -eq 0 ];then

        tar zcvf /backup/$ip/6_${name}_${DATE}.tar.gz $i

        md5sum /backup/$ip/6_${name}_${DATE}.tar.gz >>/backup/${ip}/6_check_${DATE}.md5

    else

        tar zcvf /backup/$ip/${name}_${DATE}.tar.gz $i

    md5sum /backup/$ip/${name}_${DATE}.tar.gz >>/backup/${ip}/check_${DATE}.md5

    fi

done

 

####NO.2 rsync

rsync -avzP /backup/$ip rsync_backup@192.168.1.41::backup     --password-file=/etc/rsync.password

 

####NO.3 clean

find /backup -type f -mtime +3|grep -v '6_'|xargs rm -fr

4、备份服务器检查脚本

[root@backup ~]# cat /service/scripts/check_backup.sh

#!/bin/bash

DATE=`date +%F`

####NO.1 check

find /backup -type f -name "check_${DATE}.md5"|xargs md5sum -c 2>/dev/null >/tmp/check.info

 

mail -s "$DATE 备份情况" xxxxx@qq.com </tmp/check.info

 

####NO.2 clean

find /backup -type f -mtime +7|grep -v '/6_'|xargs rm -fr

5、测试脚本

#!/bin/bash

for n in `seq -w 24`

do

date -s "201804$n";/bin/bash /service/scripts/backup.sh

done

ntpdate ntp1.aliyun.com

执行测试脚本后，再执行备份服务器backup的检查脚本，若在执行前删除一个备份文件压缩包，那么邮件内容中会有相应失败提示

 

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