把keepalived註冊爲系統服務

進入keepalived的安裝目錄（解壓目錄）,假設我的目錄爲:/usr/software/keepalived-2.0.18

執行ls可以看到有個keepalived目錄，進去

進去後會發現有個etc目錄，再進到這個etc目錄後，其中會看到兩個文件 init.d以及sysconfig

1. 執行cp init.d/keepalived /etc/init.d/
2. 執行 cp sysconfig/keepalived /etc/sysconfig/
3. 生效：systemctl daemon-reload

以上就配置好了，那麼就可以執行

1. systemctl start keepalived.service 啓動keepalived
2. systemctl start keepalived.service 停止keepalived
3. systemctl restart keepalived.service 重啓keepalived