rsync+inotify-tools实时同步

rsync+inotify-tools实时同步

官方网站:
http://rsync.samba.org/
https://download.samba.org/pub/rsync/rsync.html
https://download.samba.org/pub/rsync/rsyncd.conf.html
https://download.samba.org/pub/rsync/src/rsync-3.1.1.tar.gz

http://sourceforge.net/projects/inotify-tools/
https://github.com/rvoicilas/inotify-tools/wiki

操作系统: CentOS6.5 x64

server1.example.com:192.168.192.101(rsync client+inotify-tools)
server2.example.com:192.168.192.102(rsync server)
server3.example.com:192.168.192.103(rsync server)

简介：inotify是内核的一个监控文件变化的模块，提供监控文件变化的API，需要安装inotify-tools工具来调用这个API 。inotify用来监控需要同步目录发生的变化，可以实现文件的新增，删除，修改，改变属性等，功能很强大。

一.目标服务器(server2,server3)
说明：被同步的服务器，接收者
1.安装rsync server
yum -y install gcc gcc-c++
wget  https://download.samba.org/pub/rsync/src/rsync-3.1.1.tar.gz
tar -xvf /mnt/samba/rsync-3.1.1.tar.gz -C /usr/local/src/
cd /usr/local/src/rsync-3.1.1/
./configure && make -j4 && make install
２.配置
1.全局配置文件/etc/rsyncd.conf

cat >/etc/rsyncd.conf <<HERE

uid = nobody

gid = nobody

port = 873 

hosts allow = server1.example.com

hosts deny = *

max connections = 100

timeout= 300

use chroot = no

list = false

read only = no

syslog facility = local5

transfer logging = yes



##config file

pid file = /var/run/rsyncd.pid

lock file = /var/run/rsync.lock

log file = /var/log/rsyncd.log

#motd file = /etc/rsyncd.motd



##global config

[web]

        path = /var/www/html

        comment = Sync the web root

        ignore errors = yes

        read only = no

        write only = no

        hosts allow = server1.example.com

        hosts deny = *

        list = false

        auth users = apache foo

        secrets file = /etc/rsyncd.secrets

[image]

        path = /var/ftp/pub/image

        comment = Images

HERE

官方示例：auth users = joe:deny @guest:deny admin:rw @rsync:ro susan joe sam

２.rsync client/server通信口令

cat >/etc/rsyncd.secrets <<HERE

apache:myapache

HERE
chmod 600 /etc/rsyncd.secrets

注意：other不能有r权限
3.banner(可选)

echo "Welcome to use the rsync services"  > /etc/rsyncd.motd

4.开机启动

echo "/usr/local/bin/rsync --daemon --config=/etc/rsyncd.conf" >>/etc/rc.local

source /etc/rc.local




二.分发服务器(server1)

1.rsync client

yum -y install gcc gcc-c++

wget  https://download.samba.org/pub/rsync/src/rsync-3.1.1.tar.gz

tar -xvf /mnt/samba/rsync-3.1.1.tar.gz -C /usr/local/src/

cd /usr/local/src/rsync-3.1.1/

./configure && make -j4 && make install



2.inotify-tools

tar -xvf /mnt/samba/inotify-tools-3.13.tar.gz -C /usr/local/src/

cd /usr/local/src/inotify-tools-3.13/

 ./configure && make -j4 && make install



3.监控脚本

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

#!/bin/sh

#To rsync real time automatically 

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



#Define variables

dest_hosts="server2.example.com"

dest_module="web"

password_file="/etc/rsyncd.secrets"

exclude_list="/etc/rsyncd.exclude"

auth_user1="apache"

auth_user2=""

source_dir1="/root/test/"

source_dir2=""



inotifywait_bin="/usr/local/bin/inotifywait"

rsync_log="/var/log/rsync.log"



#Rsync

for dest_host in $(echo $dest_hosts)

do

        source_dir=$source_dir1

        auth_user=$auth_user1

       
 $inotifywait_bin -mr --timefmt '%Y/%m/%d %H:%M:%S' --format '%T %w %f' 
-e close_write,modify,delete,create,attrib $source_dir1|

        while read DATE TIME DIR FILE

        do

                filechanged=$DIR$FILE

               
 rsync -auzS --delete --ignore-errors --exclude-from=$exclude_list 
--password-file=$password_file $source_dir 
rsync://$auth_user@$dest_host:$dest_port/$dest_module 2>/dev/null

               
 echo -e "At e[31;1m$TIMEe[0m on e[34;1m$DATEe[0m, file 
e[32;1m$filechangede[0m was rsynced to e[33;1m$dest_hoste[0m"|tee -a
 $rsync_log

        done

done

注意:源路径的最后有斜杠(/root/test/)，则只同步目录中的文件；

没有斜杠(/root/test)，则不但会同步目录中的文件，还会同步目录本身

4.rsync client/server通信口令

cat >/etc/rsyncd.secrets <<HERE

myapache

HERE

chmod 600 /etc/rsyncd.secrets

注意：和目标服务器的通信口令不一样，只有密码，没有用户名

三.测试