CentOS uses Inotify+rsync for file synchronization

1. Environment deployment

Inotify-master 10.10.6.208

Inotify-slave 10.10.6.149

2, two servers are installed Rsync

Yum Install-y rsync

3. Inotify-slave Deployment

Create a new rsync user and module catalog and change its user groups

Useradd rsync-s/sbin/nologin #添加rsync用户
Mkdir/usr/local/backup #创建rsync Daemon Module directory for working mode
Chown Rsync.rsync/usr/local/backup #更改模块目录的用户组

Writing an rsync profile/etc/rsyncd.conf
Vi/etc/rsyncd.conf

Strict modes =yes #是否检查口令文件的权限
Port = 873 #默认端口873
Log file =/var/log/rsyncd.log #日志记录文件 The original, I did not use
PID file =/var/log/rsyncd.pid #运行进程的ID写到哪里

[Test]
Max connections = #客户端最大连接数, default 0 (No limit)
UID = rsync #指定该模块传输文件时守护进程应该具有的uid
GID = rsync #指定该模块传输文件时守护进程应该具有的gid
Path =/usr/local/backup/# The directory that needs to be backed up
Ignore errors # can ignore some unrelated IO errors
Read Only = no #no客户端可上传文件, yes read-only
Write only = no #no客户端可下载文件, yes cannot be downloaded
Hosts allow = * #充许任何主机连接
Hosts deny = 10.5.3.77 #禁止指定的主机连接
Auth users = rsync_backup # Virtual User
Secrets file =/etc/rsync.password # Virtual user password files location

Configure a virtual user's password file
echo "rsync_backup:123456" >/etc/rsync.password# Note: Rsync_backup is a virtual user, 123456 is the password for this virtual user
chmod 600/etc/rsync.password #为密码文件提权 for added safety

Start the Rsync service
Rsync--daemon--config=/etc/rsyncd.conf

4. Inotify-master Deployment

Installing Inotify-tools
Tar zxvf Inotify-tools-3.13.tar
CD inotify-tools-3.13
./configure--prefix=/usr/local/inotify-tools
Make
Make install

Test push
echo "123456" >/etc/rsync.password
chmod 600/etc/rsync.password
echo "Hello Dsideal" >test.txt
Rsync-avz test.txt [Email protected]::test--password-file=/etc/rsync.password
Sending incremental file list
Sent bytes received 8 bytes 76.00 bytes/sec
Total size was speedup is 0.37

The test was successful and the/usr/local/backup directory file for the 10.10.6.149 was synchronized.

Write a monitoring script and load it into the background execution

VI inotify.sh

#!/bin/bash
#para
host01=10.10.6.149
src=/usr/local/backup/#本地监控的目录
Dst=test # The module name of the Rsync service for Inotify-slave
User=rsync_backup #inotify Virtual user of the Rsync service for-slave
rsync_passfile=/etc/ Rsync.password #本地调用rsync服务的密码文件
Inotify_home=/usr/local/inotify-tools #inotify的安装目录
#judge
If [!-e "$src "] \
| | [!-e "${rsync_passfile}"] \
| | [!-e "${inotify_home}/bin/inotifywait"] \
| | [!-e "/usr/bin/rsync"];
then
echo "Check File and Folder"
Exit 9
Fi
${inotify_home}/bin/inotifywait-mrq--timefmt '%d/%m/%y%H :%M '--format '%T%w%f '-E close_write,delete,create,attrib $src | While the read file
do
CD $src &&/usr/bin/rsync-aruz-r--delete./[email protected] $host:: $dst--pas Sword-file=${rsync_passfile} >/dev/null 2>&1
echo "${files} was rsynced" >>/tmp/rsync.log 2> &1
Echo "---------------------------------------------------------------------------"
Done
Exit 0

# sh inotify.sh & #将脚本加入后台执行

CentOS uses Inotify+rsync for file synchronization