Nginx&&Keepalived（二）Nginx&&Keepalived实例

谁借莪１个温暖的怀抱￠ 2022-12-01 14:24 197阅读 0赞

现有服务my-server-demo，由于机器比较少，故将nginx和Keepalived也部署在服务的机器上。现有两台机器238和187。

一、部署服务：

1、修改test接口返回内容为238并部署到238机器上：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dfdF95X3k_size_16_color_FFFFFF_t_70][]

请求：xxx.xx.xxx.238:9999/demo/index/test

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dfdF95X3k_size_16_color_FFFFFF_t_70 1][]

2、 修改test接口返回内容为187并部署到187机器上：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dfdF95X3k_size_16_color_FFFFFF_t_70 2][]

请求：xxx.xx.xxx187:9999/demo/index/test

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dfdF95X3k_size_16_color_FFFFFF_t_70 3][]

二、配置nginx代理：

1、配置238机器nginx代理这两个节点的服务：

upstream mydemoservice{
    	  server  xxx.xx.xxx.238:9999 weight=5;
    	  server  xxx.xx.xxx.187:9999 weight=5;
    }
    
    server {
            listen       80;
            server_name  localhost;
            charset utf-8,gbk;
            #charset koi8-r;
    
         
    
          location /mydemoservice/ {
            proxy_pass http://mydemoservice/;
         }
    }

连续请求：xxx.xx.xxx.xx.238/mydemoservice/demo/index/test，

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dfdF95X3k_size_16_color_FFFFFF_t_70 4][]

可以看到在238和187之间轮询

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dfdF95X3k_size_16_color_FFFFFF_t_70 5][]

2、配置187机器nginx代理这两个节点的服务：nginx配置同238机器。

连续请求：xxx.xx.xxx187/mydemoservice/demo/index/test

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dfdF95X3k_size_16_color_FFFFFF_t_70 6][]

同样的，接口在187和238之间轮询：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dfdF95X3k_size_16_color_FFFFFF_t_70 7][]

三、Keepalived：[https://blog.csdn.net/l1028386804/article/details/72801492][https_blog.csdn.net_l1028386804_article_details_72801492]、[https://www.cnblogs.com/qinlulu/p/12855440.html][https_www.cnblogs.com_qinlulu_p_12855440.html]

vip需要单独申请，这里写个大概的步骤

1、238 配置：

! Configuration File for keepalived
    
    global_defs {
       notification_email {
         acassen@firewall.loc
         failover@firewall.loc
         sysadmin@firewall.loc
       }
       notification_email_from Alexandre.Cassen@firewall.loc
       smtp_server 172.0.0.1
       smtp_connect_timeout 30
       router_id mytest
    }
    
    vrrp_instance VI_1 {
        state MASTER
        interface eth0
        virtual_router_id 60
        priority 150
        advert_int 1
        authentication {
            auth_type PASS
            auth_pass 1111
        }
        virtual_ipaddress {
            xxx.xx.xxx.xx
        }
    }

2、187配置：

! Configuration File for keepalived
    
    global_defs {
       notification_email {
         acassen@firewall.loc
         failover@firewall.loc
         sysadmin@firewall.loc
       }
       notification_email_from Alexandre.Cassen@firewall.loc
       smtp_server 127.0.0.1
       smtp_connect_timeout 30
       router_id mytest
    }
    
    vrrp_instance VI_1 {
        state BACKUP
        interface eth0
        virtual_router_id 60
        priority 100
        advert_int 1
        authentication {
            auth_type PASS
            auth_pass 1111
        }
        virtual_ipaddress {
            xxx.xx.xxx.xx
        }
    }

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[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dfdF95X3k_size_16_color_FFFFFF_t_70 4]: /images/20221123/20b9aea4d15e442ba41364927620b13a.png
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[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dfdF95X3k_size_16_color_FFFFFF_t_70 7]: /images/20221123/c4a20222db7548f69303a94d01124c52.png
[https_blog.csdn.net_l1028386804_article_details_72801492]: https://blog.csdn.net/l1028386804/article/details/72801492
[https_www.cnblogs.com_qinlulu_p_12855440.html]: https://www.cnblogs.com/qinlulu/p/12855440.html