keepalived+lvs高可用一个集群服务

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准备阶段：
    keepalived
    ipvsadm





   

IP设计：   
    LVS-DR-MASTER：172.18.1.105
    LVS-DR-BACKUP：172.18.1.106
    VIP:172.18.1.66

    GateWay:192.168.10.254

    RS1:192.168.10.11

    RS2:192.168.10.12



编辑主路由/etc/keepalived/keepalived.conf

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global_defs {    notification_email {         root@localhost  #发送邮件地址为本机的root    }    notification_email_from test@ka.com    smtp_server 127.0.0.1    smtp_connect_timeout 30    router_id node1    vrrp_mcast_group4 224.0.49.18 } vrrp_instance VI_1 {     state MASTER  #为主路由     interface eno16777736     virtual_router_id 49     priority 100 #优先级，数字越大优先级越高     advert_int 1     authentication {         auth_type PASS         auth_pass khR8lPmc     }     virtual_ipaddress {         172.18.100.88 dev eno16777736 label eno16777736:0     } } 将此文件复制到备路由一份，并保存到/etc/keepalived/keepalived.conf 只需要更改 state BACKUP priority 98

接下来测试

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[iyunv@bogon keepalived]# systemctl start keepalived.service #先启动主路由 [iyunv@bogon keepalived]# ifconfig #查看地址，172.18.100.88已经添加上了 eno16777736: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500         inet 172.18.1.109  netmask 255.255.0.0  broadcast 172.18.255.255         inet6 fe80::20c:29ff:fef8:338  prefixlen 64  scopeid 0x20<link>         ether 00:0c:29:f8:03:38  txqueuelen 1000  (Ethernet)         RX packets 8698  bytes 5562385 (5.3 MiB)         RX errors 0  dropped 0  overruns 0  frame 0         TX packets 8582  bytes 897646 (876.6 KiB)         TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0 eno16777736:0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500         inet 172.18.100.88  netmask 255.255.255.255  broadcast 0.0.0.0         ether 00:0c:29:f8:03:38  txqueuelen 1000  (Ethernet) lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536         inet 127.0.0.1  netmask 255.0.0.0         inet6 ::1  prefixlen 128  scopeid 0x10<host>         loop  txqueuelen 0  (Local Loopback)         RX packets 0  bytes 0 (0.0 B)         RX errors 0  dropped 0  overruns 0  frame 0         TX packets 0  bytes 0 (0.0 B)         TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0