golang通过node_exporter监控GPU及cpu频率、温度的代码

wget https://dl.google.com/go/go1.16.5.linux-amd64.tar.gz
tar -xvf go1.16.5.linux-amd64.tar.gz  
cp -r ./go /usr/local 
cd /usr/local/go/bin
cp -r * /usr/bin
mkdir -p $HOME/go
echo "export GOROOT=$HOME/go" >> /etc/profile 
echo "export GOPATH=$HOME/gopath" >> /etc/profile 
echo "export PATH=$PATH:$GOROOT/bin:$GOPATH/bin" >> /etc/profile 
echo "export env -w GO111MODULE=on" >> /etc/profile 
echo "export env -w GOPROXY=https://goproxy.io,direct" >> /etc/profile 
source /etc/profile
cd /srv/
git clone https://gitee.com/kevinliu_CQ/node_exporter.git
cd node_exporter/
# cp自己的go文件到collector/下
mkdir -p /usr/local/cuda/include
cp -p nvml.h /usr/local/cuda/include
export GOPROXY=https://goproxy.cn
go build

这个版本添加了Nvidia GPU信息的抓取，所以编译的时候需要nvml.h 复制到/usr/local/cuda/include 目录里面
1.  复制依赖
​```bash
mkdir -p /usr/local/cuda/include
cp -p nvml.h /usr/local/cuda/include
​```
2.  定义GOPROXY变量
​```bash
export GOPROXY=https://goproxy.cn
​```
3. 编译项目
​```bash
cd /root/gitee_node_exporter
go build
如果报错kit相关需要替换"github.com/go-kit/log"为"github.com/go-kit/kit/log"
​```
4. 在如果一切正常在目录中会生成node_exporter的可执行二进制文件
5. 运行即可
​```bash
./node_exporter --web.listen-address=":19200"
​```
6. 打包arm64架构的方法
  * apt install gcc-aarch64-linux-gnu 
  * env CGO_ENABLED=1 GOOS=linux GOARCH=arm64 CC_FOR_TARGET=gcc-aarch64-linux-gnu CC=aarch64-linux-gnu-gcc go build

$ cat /sys/class/thermal/thermal_zone10/type 
x86_pkg_temp

.../hwmon*/$  grep "" temp*_label
temp1_label:Physical id 0
temp2_label:Core 0
temp3_label:Core 1
temp4_label:Core 2
temp5_label:Core 3

cat /sys/devices/platform/coretemp.0/hwmon/hwmon2/temp1_input