linux LVS管理之keepalive

Keepalive01:

! Configuration File for keepalived
 
global_defs {
   notification_email {    ##接收邮件的地址；就是说通知邮件应该发送给谁，通常写自己的地址
       root@localhost      ##收件人，表示发送给本机的root用户
   }
   notification_email_from keepalived@localhost    ##发件人
   smtp_server 127.0.0.1
   smtp_connect_timeout 30
   router_id LVS    #标识本节点的字条串,通常为hostname,但不一定非得是hostname。故障发生时，邮件通知会用到。
   vrrp_mcast_group4 224.0.100.19    ##vrrp协议是通过多播向外发送的；这里指的是ipv4的多播地址
}
 
vrrp_instance VI_1 {    #自定义名称：VI_1
    state BACKUP
    interface ens192
    virtual_router_id 51    #主备ID相同
    priority 100    ##优先级
    nopreempt    ##工作于非抢占模式
    advert_int 1    ##广播通告的时间间隔，每隔多长时间向外发送自身的心跳信息，默认是一秒钟一次
    authentication {
        auth_type PASS
        auth_pass 1111
    }
    virtual_ipaddress {
        172.18.117.194 dev ens192
    }
}
 
virtual_server 172.18.117.194 80 {       # 定义转移ip端口80的集群服务
    delay_loop 3
    lb_algo rr
    lb_kind DR
    protocol TCP
    sorry_server 127.0.0.1 80 
    real_server 172.18.117.192 80 {      # 定义集群服务包含的RS 1
         weight 1                     # 权重为1
     HTTP_GET {                   # 定义RS1的健康状态检测
         url {
           path /
           status_code 200
         }
         connect_timeout 1
         nb_get_retry 3
         delay_before_retry 1
      }
    }
    real_server 172.18.117.193 80 {      # 定义集群服务包含的RS 2
         weight 1                      # 权重为1
     HTTP_GET {                    # 定义RS2的健康状态检测
         url {
           path /
           status_code 200
         }
         connect_timeout 1
         nb_get_retry 3
         delay_before_retry 1
      }
    }
}

Keepalive02：

! Configuration File for keepalived
 
global_defs {
   notification_email {
       root@localhost
   }
   notification_email_from keepalived@localhost
   smtp_server 127.0.0.1
   smtp_connect_timeout 30
   router_id LVS
   vrrp_mcast_group4 224.0.100.19
}
 
vrrp_instance VI_1 {
    state BACKUP
    interface ens192
    virtual_router_id 51
    priority 99
    nopreempt
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass 1111
    }
    virtual_ipaddress {
        172.18.117.194 dev ens192
    }
}
 
virtual_server 172.18.117.194 80 {       # 定义转移ip端口80的集群服务
    delay_loop 3
    lb_algo rr
    lb_kind DR
    protocol TCP
    sorry_server 127.0.0.1 80 
    real_server 172.18.117.192 80 {      # 定义集群服务包含的RS 1
         weight 1                     # 权重为1
     HTTP_GET {                   # 定义RS1的健康状态检测
         url {
           path /
           status_code 200
         }
         connect_timeout 1
         nb_get_retry 3
         delay_before_retry 1
      }
    }
    real_server 172.18.117.193 80 {      # 定义集群服务包含的RS 2
         weight 1                      # 权重为1
     HTTP_GET {                    # 定义RS2的健康状态检测
         url {
           path /
           status_code 200
         }
         connect_timeout 1
         nb_get_retry 3
         delay_before_retry 1
      }
    }
}