VRRP


config global_defs 'globals'
        option router_id 'LVS_DEVEL'
        option enabled '1'                             # 使能状态
        option current_status 'NOTIFY_STOP'            # 切换时记录当前的状态,也可在配置文件keepalived.conf
        option current_time '1590629298'               # 记录一个时间

config ipaddress
        option name 'ipaddress0'
        option scope 'global'
        option device 'eth5'                       # 绑定接口
        option address '10.10.10.110/24'           # VIP

config vrrp_instance
        option name 'VI_1'
        option auth_type 'PASS'
        option state 'MASTER'                       # 状态选择
        list virtual_ipaddress 'ipaddress0'
        option virtual_router_id '128'              # 相同的VRID是一个组
        option priority '128'                       # 优先级
        option accept '1'
        list track_script 'track_service'
        option auth_pass '12345678'                  # 密码
        option use_vmac 'eth5'
        option interface 'eth5'                      # 绑定接口           
        option master_host '10.10.10.64'             # 主机IP 用于同步文件
        option slave_host '10.10.10.63'              # 备机IP 

config vrrp_script
        option name 'script_track_service'            
        option script '/usr/sbin/keepalived_track.sh' # 监控的脚本
        option interval '5'
        option weight '-20'
        option fall '2'
        option rise '3'

config track_script                              #
        option name 'track_service'
        option value 'script_track_service'

/tmp/keepalived.conf

! Configuration file for keepalived (autogenerated via init script)
! Written Thu May 28 04:19:01 2020

global_defs {
        router_id LVS_DEVEL     # 机器标识
}

static_ipaddress {              # 一般不会用这个来配置
}

static_routes {
}

vrrp_script script_track_service {
        script /usr/sbin/keepalived_track.sh  ##openwrt\feeds\packages\net\keepalived\files\keepalived_track.sh
        interval 5
        weight -20
        fall 2
        rise 3
}

vrrp_instance VI_1 {                   # VRRP实例
        authentication {
                auth_type PASS
                auth_pass 12345678
        }
        state MASTER                   # 初始状态
        interface eth5                 # 实例绑定的网卡
        virtual_router_id 128          # 这里设置VRID，这里非常重要，相同的VRID为一个组，他将决定多播的MAC地址
        priority 128                   # 设置本节点的优先级，优先级高的为master
        accept
        use_vmac
        notify_backup "/bin/busybox env -i ACTION=NOTIFY_BACKUP TYPE=INSTANCE NAME=VI_1 IFACE=eth5 /sbin/hotplug-call keepalived"
        notify_master "/bin/busybox env -i ACTION=NOTIFY_MASTER TYPE=INSTANCE NAME=VI_1 IFACE=eth5 /sbin/hotplug-call keepalived"
        notify_fault "/bin/busybox env -i ACTION=NOTIFY_FAULT TYPE=INSTANCE NAME=VI_1 IFACE=eth5 /sbin/hotplug-call keepalived"
        notify_stop "/bin/busybox env -i ACTION=NOTIFY_STOP TYPE=INSTANCE NAME=VI_1 IFACE=eth5 /sbin/hotplug-call keepalived"

        # /etc/hotplug.d/keepalived# cat 01-user　　　                 # 切换时会调用的脚本, 可以在里面干一些事情　
　　　　 # openwrt\feeds\packages\net\keepalived\files\keepalived.user

        virtual_ipaddress {
                10.10.10.110/24 dev eth5 scope global
        }
        track_script {
                script_track_service
        }
}