集群架构学习整理 - Nginx负载均衡配置（七）

lb01、lb02 服务器

#web01 & web02创建测试
[root@web01 conf.d]# cat 03_test.conf 
server {
        listen 80;
        server_name test.yunwei.com;
        charset utf-8; 
        root /data/test;
        location / { 
        index index.html;
        } 
}

nginx -t
systemctl reload nginx
mkdir -p /data/test
echo 'web01' > /data/test/index.html #注：web02服务器替换web02
chown www.www /data/test -R
ll /data/test/index.html

测试
[root@web02 conf.d]# curl -H "host:test.yunwei.com" 172.16.1.7
web01
[root@web02 conf.d]# curl -H "host:test.yunwei.com" 172.16.1.8
web02

#在web01上配置phpmyadmin
[root@web01 conf.d]# cat /etc/nginx/conf.d/04_phpmyadmin.conf 
server {
        listen 80;
        server_name phpmyadmin.yunwei.com;
        root /data/phpmyadmin;
        index index.php index.html;
        location ~ \.php$ {
                fastcgi_pass   127.0.0.1:9000;
                fastcgi_index  index.php;
                fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;
                include        fastcgi_params;
        }
}

nginx -t 
systemctl reload nginx

###
mkdir /data/phpmyadmin -p
cd /server/tools
wget https://files.phpmyadmin.net/phpMyAdmin/5.1.1/phpMyAdmin-5.1.1-all-languages.zip
unzip phpMyAdmin-5.1.1-all-languages.zip -d /data/phpmyadmin/
cd /data/phpmyadmin/
mv phpMyAdmin-5.1.1-all-languages/* .
rmdir phpMyAdmin-5.1.1-all-languages
cp config.sample.inc.php config.inc.php
vim +30 /data/phpmyadmin/config.inc.php
改为
$cfg['Servers'][$i]['host'] = 'db01.yunwei.com';



#复制程序到web02并添加配置文件
rsync -avz -e "ssh -p 22" /data/phpmyadmin/ root@172.16.1.8:/data/phpmyadmin/

#在web02上配置phpmyadmin
[root@web01 conf.d]# cat /etc/nginx/conf.d/04_phpmyadmin.conf 
server {
        listen 80;
        server_name phpmyadmin.yunwei.com;
        root /data/phpmyadmin;
        index index.php index.html;
        location ~ \.php$ {
                fastcgi_pass   127.0.0.1:9000;
                fastcgi_index  index.php;
                fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;
                include        fastcgi_params;
        }
}

nginx -t 
systemctl reload nginx

#部署lb01
phpmyadmin.yunwei.com虚拟主机反向代理lb01配置
[root@lb01 conf.d]# cat /etc/nginx/conf.d/04_phpmyadmin.conf 
upstream backend {
    server 172.16.1.7       weight=1; #默认80端口 
    server 172.16.1.8       weight=1; #默认80端口
}

server {
        listen 80;
        server_name phpmyadmin.yunwei.com;
        location / {
                proxy_pass http://backend;
                proxy_set_header Host $http_host;
        }
}

#测试浏览器打开phpmyadmin.yunwei.com
登录到数据库，然后刷新感受请求到不同节点后，出现未登录状态。
可以通过谷歌f12查看请求报文和响应报文。
登录172.16.1.51部署redis缓存
采用Redis共享方式来实现会话保持：



#配置lb01 & lb02
安装nginx，参考上面，安装好nginx，然后配置
vi /etc/nginx/conf.d/01_lb_test.conf
server {
        listen 80;
        server_name test.yunwei.com;   
        location / {
                proxy_pass http://172.16.1.7:80;
                proxy_set_header Host $http_host; 
        }
}

nginx -t
systemctl reload nginx
tail -f  /var/log/nginx/access.log

基于动静分离：参考day59笔记

基于设备区分：参考day59笔记

根据不同业务做负载均衡

#web01配置
[root@web01 ~]# cat /etc/nginx/conf.d/05_www.conf
server {
        listen 80;
        server_name www.yunwei.com;
        root /data/www;
        location / {
            index index.html;
        }
}
[root@web01 ~]# mkdir /data/www
[root@web01 ~]# echo "register_web01..." > /data/www/index.html  
[root@web01 ~]# nginx -t
[root@web01 ~]# systemctl reload nginx

#web02配置
[root@web02 ~]# cat /etc/nginx/conf.d/05_www.conf
server {
        listen 80;
        server_name www.yunwei.com;
        root /data/www;
        location / {
            index index.html;
        }
}
[root@web02 ~]# mkdir /data/www
[root@web02 ~]# echo "login--web02.." >> /data/www/index.html
[root@web01 ~]# nginx -t
[root@web01 ~]# systemctl reload nginx

#负载均衡lb01配置
[root@lb01 conf.d]# cat /etc/nginx/conf.d/05_www.conf
upstream register {
    server 172.16.1.7:80;
}

upstream login {
    server 172.16.1.8:80;
}

server {
    listen 80;
    server_name www.yunwei.com;
    
    location /register {
            proxy_pass http://register/;
            proxy_redirect off;
            proxy_set_header Host $host;
             proxy_set_header X-Forwarded-For  $remote_addr;
             proxy_set_header X-Real-IP $remote_addr;
    }

    location /login {
            proxy_pass http://login/;
            proxy_redirect off;
            proxy_set_header Host $host;
             proxy_set_header X-Forwarded-For  $remote_addr;
             proxy_set_header X-Real-IP $remote_addr;
    }
}

[root@lb01 ~]# nginx -t
[root@lb01 ~]# systemctl reload nginx