How to realize automatic synchronization of Web pages in linux system

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Load Balancer is implemented by using multiple web servers. In order to maintain the consistency of resources on the front-end web server, updated files can be synchronized to other slave servers (read-only servers) through rsync on the master server (writable data), but real-time synchronization cannot be automatically implemented. Real-time synchronization can be achieved by using inotify.

Primary server: 192.168.6.205 inotify

From Server: 192.168.6.36 rsync

1. Configure rsync on the slave server and enable the rsync service so that the master server can synchronize resources to the server.

vim /etc/rsyncd.conf

uid = nginx

gid = nginx

port = 873

host all = 192.168.6.205

use chroot = on

max connections = 4

timeout = yes

[wordpress]

path = /usr/local/nginx/html/wordpress

comment = rsync files

ignore errors

read only = no

list = yes

auth users = rsync

secrets file = /etc/rsync.passwd

Create the/etc/rsync.passwd password configuration file

vim /etc/rsync.passwd

#User: Password

rsync:rsync

2. Install inotify-tools on the master server

tar -zxvf inotify-tools-3.14.tar.gz

cd inotify-tools-3.14

./ configure -prefix=/usr/local/inotify

make && make install

Configure an rsync password file on the master server to synchronize data to the slave server

vim /etc/rsync.passwd

#Password

rsync

create scripts

vim inotifyrsync.sh

#!/ bin/bash

host=192.168.6.36

src=/usr/local/nginx/html/wordpress/

dst=wordpress

user=rsync

inotifywait=/usr/local/inotify/bin/inotifywait

rsync=/usr/bin/rsync

$inotifywait -mrq -timefmt '%d/%m/%y %h:%m' -format '%t %w%f' -e modify,delete,create,attrib $src | while read files

do

$rsync -vzrtopg -delete -progress -password-file=/etc/rsync.passwd $src $user@$host::$dst

echo "${files} was rsynced" >>/tmp/rsync.log 2>&1

done

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