nginx+rsync+inotify实现负载均衡

更新：2022-05-23 13:41:52编辑：Story归类：nginx人气：201

实验环境

前端nginx：ip 192.168.6.242，对后端的wordpress网站做反向代理实现负载均衡
后端nginx：ip 192.168.6.36，192.168.6.205都部署wordpress，并使用相同的数据库

安装rsync和inotify

在后端的两个wordpress上配置rsync+inotify，两服务器都开启rsync服务，并且通过inotify分别向对方同步数据, 下面配置192.168.6.205这台服务器

vim /etc/rsyncd.conf
uid = nginx
gid = nginx
port = 873
host all = 192.168.6.36 #另外一台wordpress使用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_server.passwd #指定帐号密码，用于提供另外一个节点访问自身的帐号

vim / etc / rsyncd . conf

uid = nginx

gid = nginx

port = 873

host all = 192.168.6.36 #另外一台wordpress使用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_server . passwd #指定帐号密码，用于提供另外一个节点访问自身的帐号

账号密码

服务端
vim /etc/rsync_server.passwd
rsync:rsync

客户端
vim /etc/rsync_client.passwd
rsync 
#用于访问另外一个wordpress使用的密码文件

服务端

vim / etc / rsync_server . passwd

rsync : rsync

客户端

vim / etc / rsync_client . passwd

rsync

#用于访问另外一个wordpress使用的密码文件

配置inotify同步脚本

vim /root/inotify.sh
#!/bin/bash
host=192.168.6.36 #另外一个wordpress
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_client.passwd $src $user@$host::$dst
echo "${files} was rsynced" >>/tmp/rsync.log 2>&1
done

vim / root / inotify . sh

#!/bin/bash

host = 192.168.6.36 #另外一个wordpress

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

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

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

done

让该脚本在后台运行

nohup /root/inotify.sh &

1	nohup / root / inotify . sh &

配置前端nginx实现反向代理

vim /usr/local/nginx/conf/nginx.conf
 #在http段中加入
 include vhost/wordpress.conf;
mkdir /usr/local/nginx/confi/vhost
 vim /usr/local/nginx/confi/vhost/wordpress.conf
 upstream wordpress {
     server 192.168.6.205 weight=1;
     server 192.168.6.36 weight=1;
 }
server {
   location / {
       proxy_pass http://wordpress;
       proxy_redirect      off;
       proxy_set_header    Host        $host;
       proxy_set_header    X-Real-IP   $remote_addr;
   }
 }