add go file

SimpleInstall/Linstall.go

@@ -0,0 +1,198 @@
+package main
+
+import (
+	"archive/tar"
+	"bufio"
+	"bytes"
+	"compress/gzip"
+	"fmt"
+	"io"
+	"log"
+	"net/http"
+	"os"
+	"os/exec"
+	"path/filepath"
+)
+
+// public command to do something, for example:to execute a command
+func publicCommand() {
+
+}
+func osCommand() {
+
+	cmd := exec.Command("mkdir", "-p", "/etc/docker")
+	var stdout, stderr bytes.Buffer
+	cmd.Stdout = &stdout // 标准输出
+	cmd.Stderr = &stderr // 标准错误
+	err := cmd.Run()
+	outStr, errStr := string(stdout.Bytes()), string(stderr.Bytes())
+	fmt.Printf("out:\n%s\nerr:\n%s\n", outStr, errStr)
+	if err != nil {
+		log.Fatalf("cmd.Run() failed with %s\n", err)
+	}
+}
+
+func creatService() {
+	var dockerService = `
+[Unit]
+Description=Docker Application Container Engine
+Documentation=http://docs.docker.io
+
+[Service]
+Environment="PATH=/usr/local/bin:/bin:/sbin:/usr/bin:/usr/sbin"
+ExecStart=/usr/local/bin/dockerd 
+ExecStartPost=/sbin/iptables -I FORWARD -s 0.0.0.0/0 -j ACCEPT
+ExecReload=/bin/kill -s HUP $MAINPID
+Restart=on-failure
+RestartSec=5
+LimitNOFILE=infinity
+LimitNPROC=infinity
+LimitCORE=infinity
+Delegate=yes
+KillMode=process
+
+[Install]
+WantedBy=multi-user.target
+`
+
+	filePath := "/Users/yun/dev/code/go/devops/SimpleInstall/docker.service"
+	//filePath := "/usr/lib/systemd/system/docker.service"
+	file, err := os.OpenFile(filePath, os.O_WRONLY|os.O_CREATE, 0666)
+	if err != nil {
+		fmt.Println("文件打开失败", err)
+	}
+	//及时关闭file句柄
+	defer file.Close()
+	//写入文件时，使用带缓存的 *Writer
+	write := bufio.NewWriter(file)
+	for i := 0; i < 5; i++ {
+		write.WriteString(dockerService)
+	}
+	//Flush将缓存的文件真正写入到文件中
+	write.Flush()
+}
+
+// download install source code or executable file
+func publicDownloadFile() {
+	imgUrl := "https://mirrors.tuna.tsinghua.edu.cn/docker-ce/linux/static/stable/x86_64/docker-23.0.1.tgz"
+	// Get the data
+	resp, err := http.Get(imgUrl)
+	if err != nil {
+		panic(err)
+	}
+	defer resp.Body.Close()
+	// 创建一个文件用于保存
+	out, err := os.Create("docker-23.0.1.tgz")
+	if err != nil {
+		panic(err)
+	}
+	defer out.Close()
+
+	// 然后将响应流和文件流对接起来
+	_, err = io.Copy(out, resp.Body)
+	if err != nil {
+		panic(err)
+	}
+}
+
+// create system service
+func createSystemlServices() {
+
+}
+
+func UnTar(dst, src string) (err error) {
+	// 打开准备解压的 tar 包
+	fr, err := os.Open(src)
+	if err != nil {
+		return
+	}
+	defer fr.Close()
+
+	// 将打开的文件先解压
+	gr, err := gzip.NewReader(fr)
+	if err != nil {
+		return
+	}
+	defer gr.Close()
+
+	// 通过 gr 创建 tar.Reader
+	tr := tar.NewReader(gr)
+
+	// 现在已经获得了 tar.Reader 结构了，只需要循环里面的数据写入文件就可以了
+	for {
+		hdr, err := tr.Next()
+
+		switch {
+		case err == io.EOF:
+			return nil
+		case err != nil:
+			return err
+		case hdr == nil:
+			continue
+		}
+
+		// 处理下保存路径，将要保存的目录加上 header 中的 Name
+		// 这个变量保存的有可能是目录，有可能是文件，所以就叫 FileDir 了……
+		dstFileDir := filepath.Join(dst, hdr.Name)
+
+		// 根据 header 的 Typeflag 字段，判断文件的类型
+		switch hdr.Typeflag {
+		case tar.TypeDir: // 如果是目录时候，创建目录
+			// 判断下目录是否存在，不存在就创建
+			if b := ExistDir(dstFileDir); !b {
+				// 使用 MkdirAll 不使用 Mkdir ，就类似 Linux 终端下的 mkdir -p，
+				// 可以递归创建每一级目录
+				if err := os.MkdirAll(dstFileDir, 0775); err != nil {
+					return err
+				}
+			}
+		case tar.TypeReg: // 如果是文件就写入到磁盘
+			// 创建一个可以读写的文件，权限就使用 header 中记录的权限
+			// 因为操作系统的 FileMode 是 int32 类型的，hdr 中的是 int64，所以转换下
+			file, err := os.OpenFile(dstFileDir, os.O_CREATE|os.O_RDWR, os.FileMode(hdr.Mode))
+			if err != nil {
+				return err
+			}
+			n, err := io.Copy(file, tr)
+			if err != nil {
+				return err
+			}
+			// 将解压结果输出显示
+			fmt.Printf("成功解压： %s , 共处理了 %d 个字符\n", dstFileDir, n)
+
+			// 不要忘记关闭打开的文件，因为它是在 for 循环中，不能使用 defer
+			// 如果想使用 defer 就放在一个单独的函数中
+			file.Close()
+		}
+	}
+
+	return nil
+}
+
+// 判断目录是否存在
+func ExistDir(dirname string) bool {
+	fi, err := os.Stat(dirname)
+	return (err == nil || os.IsExist(err)) && fi.IsDir()
+}
+
+// https://learnku.com/articles/23433/golang-learning-notes-four-archivetar-package-compression-and-decompression
+
+func initSystem() {
+
+	fmt.Println("env config change ok!")
+	fmt.Println("kernel config change ok!")
+	fmt.Println("network config change ok!")
+}
+func installDocker() {
+
+	fmt.Println("install docker ok!")
+}
+func main() {
+	creatService()
+	//publicDownloadFile()
+
+	//UnTar("", "/Users/yun/dev/code/go/devops/SimpleInstall/docker-23.0.1.tgz")
+	//creatService()
+	//installDocker()
+
+}

data.json

@@ -0,0 +1,135 @@
+{
+  "data": {
+    "timeStamp": 1723899671,
+    "fetchTimeStamp": 1723899020,
+    "updateTimeStamp": 1723898460,
+    "provinceName": "江苏",
+    "cityName": "南京",
+    "countyName": "浦口",
+    "linkSeven": "http://www.weather.com.cn/weather/101190107.shtml#7d",
+    "currentWeather": "晴",
+    "currentWeatherIcon": "a0",
+    "currentTemp": "31",
+    "currentAqiValue": "46",
+    "currentAqiLevel": "优",
+    "weatherArr": [
+      {
+        "date": "08月17日",
+        "time": "周六",
+        "dateInfo": {
+          "date": "8月17日",
+          "lunar": "七月十四",
+          "timeStamp": 1723824000,
+          "festival": "",
+          "weatherSourceUrl": ""
+        },
+        "temp": "26 ~ 35",
+        "wind": "东北风3-4级",
+        "condition": "多云",
+        "imgs": [
+          "a1",
+          "a1"
+        ],
+        "link": "http://www.weather.com.cn/weather/101190107.shtml#7d",
+        "pm25": "46",
+        "pm25url": "//www.baidu.com/s?wd=南京空气质量指数\u0026amp;tn=baidutop10\u0026amp;rsv_idx=2"
+      },
+      {
+        "date": "08月18日",
+        "time": "周日",
+        "dateInfo": {
+          "date": "8月18日",
+          "lunar": "七月十五",
+          "timeStamp": 1723910400,
+          "festival": "",
+          "weatherSourceUrl": ""
+        },
+        "temp": "27 ~ 35",
+        "wind": "东风3-4级",
+        "condition": "多云",
+        "imgs": [
+          "a1",
+          "a1"
+        ],
+        "link": "http://www.weather.com.cn/weather/101190107.shtml#7d",
+        "pm25": "",
+        "pm25url": "//www.baidu.com/s?wd=南京空气质量指数\u0026amp;tn=baidutop10\u0026amp;rsv_idx=2"
+      },
+      {
+        "date": "08月19日",
+        "time": "周一",
+        "dateInfo": {
+          "date": "8月19日",
+          "lunar": "七月十六",
+          "timeStamp": 1723996800,
+          "festival": "",
+          "weatherSourceUrl": ""
+        },
+        "temp": "26 ~ 35",
+        "wind": "东风3-4级",
+        "condition": "雷阵雨转中到大雨",
+        "imgs": [
+          "a4",
+          "a1"
+        ],
+        "link": "http://www.weather.com.cn/weather/101190107.shtml#7d",
+        "pm25": "",
+        "pm25url": "//www.baidu.com/s?wd=南京空气质量指数\u0026amp;tn=baidutop10\u0026amp;rsv_idx=2"
+      },
+      {
+        "date": "08月20日",
+        "time": "周二",
+        "dateInfo": {
+          "date": "8月20日",
+          "lunar": "七月十七",
+          "timeStamp": 1724083200,
+          "festival": "",
+          "weatherSourceUrl": ""
+        },
+        "temp": "25 ~ 31",
+        "wind": "南风3-4级",
+        "condition": "中到大雨转多云",
+        "imgs": [
+          "a1",
+          "a1"
+        ],
+        "link": "http://www.weather.com.cn/weather/101190107.shtml#7d",
+        "pm25": "",
+        "pm25url": "//www.baidu.com/s?wd=南京空气质量指数\u0026amp;tn=baidutop10\u0026amp;rsv_idx=2"
+      },
+      {
+        "date": "08月21日",
+        "time": "周三",
+        "dateInfo": {
+          "date": "8月21日",
+          "lunar": "七月十八",
+          "timeStamp": 1724169600,
+          "festival": "",
+          "weatherSourceUrl": ""
+        },
+        "temp": "25 ~ 34",
+        "wind": "西风\u003c3级",
+        "condition": "阴转多云",
+        "imgs": [
+          "a2",
+          "a1"
+        ],
+        "link": "http://www.weather.com.cn/weather/101190107.shtml#7d",
+        "pm25": "",
+        "pm25url": "//www.baidu.com/s?wd=南京空气质量指数\u0026amp;tn=baidutop10\u0026amp;rsv_idx=2"
+      }
+    ],
+    "weatherType": "aladdin",
+    "pslink": "//www.baidu.com/s?tn=baidutop10\u0026rsv_idx=2\u0026wd=南京天气预报",
+    "pollution": "0",
+    "alarm": [
+      {
+        "type": "高温",
+        "level": "黄色",
+        "color": "fcc419"
+      }
+    ]
+  },
+  "errno": 0,
+  "msg": "ok"
+}