1、通过命令获取
sudo /usr/local/qcloud/YunJing/YDEyes/YDService -uuid -v
2、通过API获取
curl http://metadata.tencentyun.com/latest/meta-data/uuid
3、获取实例唯一ID
curl http://metadata.tencentyun.com/latest/meta-data/instance-id
4、实例元数据
实例元数据包括UUID、实例ID、MAC编号等等，可以通过如下接口查看元数据列表
curl http://metadata.tencentyun.com/latest/meta-data/
app-id
instance-id
local-ipv4
mac
public-ipv4
uuid
instance-name
hostname
runcmd
placement/
payment/
network/
volumes/
instance/
ntp/
rdma-subnet
5、官网说明
https://cloud.tencent.com/document/product/213/4934