将keepallived注册为系统服务，方便开启关闭

1. 找到keepallived解压后释放的文件夹 注：不是安装目录，是下载后的压缩包解压后的文件夹
2. 进入keepalived/etc文件夹
   
3. 将 init.d/keepalived 复制到 /etc/init.d/ 下

cp init.d/keepalived /etc/init.d/

4. 将 sysconfig/keepalived 复制到/etc/sysconfig/ 下

cp sysconfig/keepalived /etc/sysconfig/
#注：如果提示覆盖，按y即可

5. 刷新配置

systemctl daemon-reload

6. 配置成功后，可用如下命令进行操作

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