LVS+Keepalive实现高可用集群

首先准备两台已经安装好LVS的机器
可参照这篇文档快速搭建
这里有一点要注意&＃xff0c;不要执行对vip地址进行绑定&＃xff0c;否则ip漂移会失败

IP地址规划

安装Keepalive

yum install -y keepalived


修改keepalive配置文件

• lvs1

global_defs {router_id LVS_01
}vrrp_instance VI_1 {state MASTERinterface eth0virtual_router_id 51priority 150advert_int 1authentication {auth_type PASSauth_pass 1111}virtual_ipaddress {10.0.0.3/24}
}virtual_server 10.0.0.3 80 {delay_loop 6lb_algo wrrlb_kind DRnat_mask 255.255.255.0persistence_timeout 3protocol TCPreal_server 10.0.0.200 80 {weight 1TCP_CHECK {connect_timeout 8nb_get_retry 3delay_before_retry 3connect_port 80}}real_server 10.0.0.202 80 {weight 1TCP_CHECK {connect_timeout 8nb_get_retry 3delay_before_retry 3connect_port 80}}
}


• lvs2

global_defs {router_id LVS_02
}vrrp_instance VI_1 {state BACKUPinterface eth0virtual_router_id 51priority 100advert_int 1authentication {auth_type PASSauth_pass 1111}virtual_ipaddress {10.0.0.3/24}
}
virtual_server 10.0.0.3 80 {delay_loop 6lb_algo wrrlb_kind DRnat_mask 255.255.255.0persistence_timeout 3protocol TCPreal_server 10.0.0.200 80 {weight 1TCP_CHECK {connect_timeout 8nb_get_retry 3delay_before_retry 3connect_port 80}}real_server 10.0.0.202 80 {weight 1TCP_CHECK {connect_timeout 8nb_get_retry 3delay_before_retry 3connect_port 80}}
}


启动keepalive

service keepalived start


检查漂移状态

• lvs1
  
• lvs2
  

此时将lvs1的keepalived停掉再观察此时vip已经漂到lvs2上了

• 再对lvs负载进行验证即可