實驗環境
前端nginx：ip 192.168.6.242，對后端的wordpress網站做反向代理實現復雜均衡
后端nginx：ip 192.168.6.36，192.168.6.205都部署wordpress，并使用相同的數據庫
1、在后端的兩個wordpress上配置rsync+inotify，兩服務器都開啟rsync服務，并且通過inotify分別向對方同步數據
下面配置192.168.6.205這臺服務器
vim /etc/rsyncd.conf
uid = nginx
gid = nginx
port = 873
host all = 192.168.6.36 #另外一臺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 #指定帳號密碼，用于提供另外一個節點訪問自身的帳號
vim /etc/rsync_server.passwd
rsync:rsync
vim /etc/rsync_client.passwd
rsync #用于訪問另外一個wordpress使用的密碼文件
配置inotify同步腳本
#!/bin/bash
host=192.168.6.36 #另外一個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
2、配置前端nginx實現反向代理
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;
}
}
3、修改wordpress中的設置，必須將這個了的站點地址改為前端nginx的ip地址或者域名
