配置 Keepalived - 备

一、通过命令 vim keepalived.conf 打开配置文件

global_defs {
   # 路由id：当前安装keepalived的节点主机标识符，保证全局唯一
   router_id keep_252
}

vrrp_instance VI_1 {
    # 备用机设置为BACKUP
    state BACKUP
    # 该实例绑定的网卡
    interface eth0
    # 保证主备节点一致即可
    virtual_router_id 51
    # 权重低于MASTER
    priority 80
    # 主备之间同步检查时间间隔，单位秒
    advert_int 2
    # 认证权限密码，防止非法节点进入
    authentication {
        auth_type PASS
        auth_pass 1111
    }
    # 虚拟出来的ip，可以有多个（vip）
    virtual_ipaddress {
        172.17.57.252
    }
}

二、启动 Keepalived

# 启动keepalived
systemctl start keepalived
# 停止keepalived
systemctl stop keepalived
# 重启keepalived
systemctl restart keepalived

三、查看进程

ps -ef|grep keepalived