Keepalived系列一：Keepalived.conf 詳解

接上一篇博客：

http://www.cnblogs.com/xiaoit/p/4499703.html

 

1：按照上篇博客安裝後的配置文件在

/usr/local/etc/keepalived/keepalived.conf

默認內容以下：

! Configuration File for keepalived

#全局定義塊，如下模版不能省略
global_defs {
   #若有故障，發郵件的地址。
   notification_email {
     acassen@firewall.loc
     failover@firewall.loc
     sysadmin@firewall.loc
   }
   notification_email_from Alexandre.Cassen@firewall.loc
   smtp_server 192.168.200.1
   
   #郵件服務連接超時的最長時間
   smtp_connect_timeout 30 
   router_id LVS_DEVEL
}

#前面定義的後備的負載均衡服務器名稱
vrrp_instance VI_1 {
    #只有MASTER和BACKUP 兩種狀態，都必須大寫。
    state MASTER
    #進行通訊的端口
    interface eth0

    #同一個vrrp實例的惟一標識。即同一個vrrp_stance,MASTER和BACKUP的virtual_router_id是一致的。在整個vrrp內也惟一。
    virtual_router_id 51
    
    #權重，數值越大，權重越大。MASTER大於SLAVE
    priority 100
    
    #MASTER和SLAVE負載均衡器之間同步檢查的時間間隔。單位是：秒
    advert_int 1
    
    #MASTER和SLAVE的認證方式
    authentication {
        auth_type PASS
        auth_pass 1111
    }
    virtual_ipaddress {
        192.168.200.16
        192.168.200.17
        192.168.200.18
    }
}

#virtual_ipaddress，須要添加端口
virtual_server 192.168.200.100 443 {
    #服務健康檢查週期，6秒
    delay_loop 6
    
    #負載均衡調度算法rr|wrr|lc|wlc|sh|dh|lblc
    lb_algo rr
    
    #負載均衡轉發規則NAT|DR|TUN
    lb_kind NAT
    nat_mask 255.255.255.0
    
    #回話保持時間，若是是動態服務，建議開啓。默認50秒
    persistence_timeout 50
    protocol TCP

    #真是IP
    real_server 192.168.201.100 443 {
        
        #權重，數值越大，權重越高。分發的可能越大
        weight 1
        SSL_GET {
            url {
              path /
              digest ff20ad2481f97b1754ef3e12ecd3a9cc
            }
            url {
              path /mrtg/
              digest 9b3a0c85a887a256d6939da88aabd8cd
            }
            connect_timeout 3
            nb_get_retry 3
            delay_before_retry 3
        }
    }
}

virtual_server 10.10.10.2 1358 {
    delay_loop 6
    lb_algo rr 
    lb_kind NAT
    persistence_timeout 50
    protocol TCP

    sorry_server 192.168.200.200 1358

    real_server 192.168.200.2 1358 {
        weight 1
        HTTP_GET {
            url { 
              path /testurl/test.jsp
              digest 640205b7b0fc66c1ea91c463fac6334d
            }
            url { 
              path /testurl2/test.jsp
              digest 640205b7b0fc66c1ea91c463fac6334d
            }
            url { 
              path /testurl3/test.jsp
              digest 640205b7b0fc66c1ea91c463fac6334d
            }
            connect_timeout 3
            nb_get_retry 3
            delay_before_retry 3
        }
    }

    real_server 192.168.200.3 1358 {
        weight 1
        HTTP_GET {
            url { 
              path /testurl/test.jsp
              digest 640205b7b0fc66c1ea91c463fac6334c
            }
            url { 
              path /testurl2/test.jsp
              digest 640205b7b0fc66c1ea91c463fac6334c
            }
            connect_timeout 3
            nb_get_retry 3
            delay_before_retry 3
        }
    }
}

virtual_server 10.10.10.3 1358 {
    delay_loop 3
    lb_algo rr 
    lb_kind NAT
    nat_mask 255.255.255.0
    persistence_timeout 50
    protocol TCP

    real_server 192.168.200.4 1358 {
        weight 1
        HTTP_GET {
            url { 
              path /testurl/test.jsp
              digest 640205b7b0fc66c1ea91c463fac6334d
            }
            url { 
              path /testurl2/test.jsp
              digest 640205b7b0fc66c1ea91c463fac6334d
            }
            url { 
              path /testurl3/test.jsp
              digest 640205b7b0fc66c1ea91c463fac6334d
            }
            connect_timeout 3
            nb_get_retry 3
            delay_before_retry 3
        }
    }

    real_server 192.168.200.5 1358 {
        weight 1
        HTTP_GET {
            url { 
              path /testurl/test.jsp
              digest 640205b7b0fc66c1ea91c463fac6334d
            }
            url { 
              path /testurl2/test.jsp
              digest 640205b7b0fc66c1ea91c463fac6334d
            }
            url { 
              path /testurl3/test.jsp
              digest 640205b7b0fc66c1ea91c463fac6334d
            }
            connect_timeout 3
            nb_get_retry 3
            delay_before_retry 3
        }
    }
}

參考：

http://www.keepalived.org/documentation.html