基于Varnish的CDN推送管理平台的搭建

谁践踏了优雅 2022-02-19 16:08 257阅读 0赞

1.获得平台搭建资源，并解压，在之前先安装解压工具、httpd和php(平台网页文件识别所需)

yum install unzip httpd php -y
    unzip bansys.zip -d /var/www/html/

2.将解压的文件内容移动到apache默认发布目录下

cd /var/www/html/bansys
    mv * ..
    cd ..
    rm -fr bansys/

3.编辑config.php

vim config.php
    
     <?php
    
     //可定义多个主机列表
     $var_group1 = array(
                            'host' => array('172.25.70.1'),              # 定义172.25.70.1为主机列表，端口为80
                                                    'port' => '80', # varnish主机 
                        );
    
    
     //varnish群组定义
     //对主机列表进行绑定
     $VAR_CLUSTER = array(
                             'www.taylorswift.com' => $var_group1,    # 绑定172.25.70.1主机
                         );
    
    
     //varnish版本
     //2.x和3.x推送命令不一样
     $VAR_VERSION = "3";    # varnish的版本为3
    
    ?>

4.改httpd端口并重启服务

vim /etc/httpd/conf/httpd.conf
    #养成良好习惯。修改配置文件，保证不删除，只注释添加；重要修改前先备份
     136 #Listen 80
     137 Listen 8080
    
    
    /etc/init.d/httpd restart

5.改Varnish配置文件

vim /etc/varnish/default.vcl
    
    
    acl taylor { 
      "127.0.0.1";
      "172.25.70.0"/24;#设置访问控制，即白名单，允许本机和172.25.1网段和推送
      }
    
    backend web1 { 
      .host = "172.25.70.2";
      .port = "80";
    }
    backend web2 { 
      .host = "172.25.70.3";
      .port = "80";
    }
    
    director taylor round-robin { 
    { .backend = web1;}
    { .backend = web2;}
    }
    
    sub vcl_recv { 
             if (req.request == "BAN") { # 如果采用推送方式是BAN
                    if (!client.ip ~ taylor) {  # 如果客户端的IP不是taylor
                            error 405 "Not allowed";
             }
             ban("req.url ~" + req.url);
                     error 200 "ban added";
             }
    }
    
    sub vcl_recv { 
    if (req.http.host ~ "^(www.)?taylorswift.com") { 
    set req.http.host = "www.taylorswift.com";
    set req.backend = taylor;
    #return(pass);
    } elsif (req.http.host ~ "^music.taylorswift.com") { 
    set req.backend = web2;
    } else { error 404 "taylor cache";
    }
    }
    sub vcl_deliver { 
    if (obj.hits > 0) { 
    set resp.http.X-Cache = "HIT from taylor cache";
    
    }
    else { 
    set resp.http.X-Cache = "MISS from taylor cache";
    
    }
    return (deliver);
    }

**还应注释掉之前为验证轮询机制的跳转函数**  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQzNTcwMzY5_size_16_color_FFFFFF_t_70]  
6.重新加载服务

/etc/init.d/varnish reload

7.在浏览器中输入172.25.70.1：8080，出现CDN推送管理页面  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQzNTcwMzY5_size_16_color_FFFFFF_t_70 1]  
8.真机使用命令查看推送效果  
首先查看  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQzNTcwMzY5_size_16_color_FFFFFF_t_70 2]  
推送  
![在这里插入图片描述][20190416212725659.png]  
再次查看  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQzNTcwMzY5_size_16_color_FFFFFF_t_70 3]  
可以看到，推送成功！

Varnish的CDN简易推送平台就搭建好了。

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[20190416212725659.png]: /images/20220219/46385a6158d744d188c9261a55f36d9d.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQzNTcwMzY5_size_16_color_FFFFFF_t_70 3]: /images/20220219/3bd7448b869e401485809dd70d7dfaa6.png