提升ssh sudo安装的稳定性

internal/installers/env.go

@@ -3,5 +3,5 @@ package installers
 type Env struct {
 	OS         string
 	Arch       string
-	HelperName string
+	HelperPath string
 }

internal/installers/installer_base.go

@@ -147,13 +147,13 @@ func (this *BaseInstaller) LookupLatestInstaller(filePrefix string) (string, err
 
 // InstallHelper 上传安装助手
 func (this *BaseInstaller) InstallHelper(targetDir string, role nodeconfigs.NodeRole) (env *Env, err error) {
-	uname, _, err := this.client.Exec("/usr/bin/uname -a")
+	uname, stderr, err := this.client.Exec("/usr/bin/uname -a")
 	if err != nil {
 		return env, err
 	}
 
 	if len(uname) == 0 {
-		return nil, errors.New("unable to execute 'uname -a' on this system")
+		return nil, errors.New("unable to execute 'uname -a' on this system: " + stderr)
 	}
 
 	osName := ""
@@ -181,22 +181,41 @@ func (this *BaseInstaller) InstallHelper(targetDir string, role nodeconfigs.Node
 		archName = "386"
 	}
 
-	exeName := "edge-installer-helper-" + osName + "-" + archName
+	var exeName = "edge-installer-helper-" + osName + "-" + archName
 	switch role {
 	case nodeconfigs.NodeRoleDNS:
 		exeName = "edge-installer-dns-helper-" + osName + "-" + archName
 	}
-	exePath := Tea.Root + "/installers/" + exeName
+	var exePath = Tea.Root + "/installers/" + exeName
 
-	err = this.client.Copy(exePath, targetDir+"/"+exeName, 0777)
+	var realHelperPath = ""
-	if err != nil {
+
-		return env, errors.New("copy '" + exeName + "' to '" + targetDir + "' failed: " + err.Error())
+	var firstCopyErr error
+	for _, path := range []string{
+		targetDir + "/" + exeName,
+		this.client.UserHome() + "/" + exeName,
+		"/tmp/" + exeName,
+	} {
+		err = this.client.Copy(exePath, path, 0777)
+		if err != nil {
+			if firstCopyErr == nil {
+				firstCopyErr = err
+			}
+		} else {
+			err = nil
+			firstCopyErr = nil
+			realHelperPath = path
+			break
+		}
+	}
+	if firstCopyErr != nil {
+		return env, errors.New("copy '" + exeName + "' to '" + targetDir + "' failed: " + firstCopyErr.Error())
 	}
 
 	env = &Env{
 		OS:         osName,
 		Arch:       archName,
-		HelperName: exeName,
+		HelperPath: realHelperPath,
 	}
 	return env, nil
 }

internal/installers/installer_node.go

@@ -45,7 +45,7 @@ func (this *NodeInstaller) Install(dir string, params interface{}, installStatus
 	}
 
 	// 上传安装文件
-	filePrefix := "edge-node-" + env.OS + "-" + env.Arch
+	var filePrefix = "edge-node-" + env.OS + "-" + env.Arch
 	zipFile, err := this.LookupLatestInstaller(filePrefix)
 	if err != nil {
 		return err
@@ -53,16 +53,34 @@ func (this *NodeInstaller) Install(dir string, params interface{}, installStatus
 	if len(zipFile) == 0 {
 		return errors.New("can not find installer file for " + env.OS + "/" + env.Arch)
 	}
-	targetZip := dir + "/" + filepath.Base(zipFile)
+	var targetZip = ""
-	err = this.client.Copy(zipFile, targetZip, 0777)
+	var firstCopyErr error
-	if err != nil {
+	var zipName = filepath.Base(zipFile)
-		return err
+	for _, candidateTargetZip := range []string{
+		dir + "/" + zipName,
+		this.client.UserHome() + "/" + zipName,
+		"/tmp/" + zipName,
+	} {
+		err = this.client.Copy(zipFile, candidateTargetZip, 0777)
+		if err != nil {
+			if firstCopyErr == nil {
+				firstCopyErr = err
+			}
+		} else {
+			err = nil
+			firstCopyErr = nil
+			targetZip = candidateTargetZip
+			break
+		}
+	}
+	if firstCopyErr != nil {
+		return errors.New("upload node file failed: " + firstCopyErr.Error())
 	}
 
 	// 测试运行环境
 	// 升级的节点暂时不列入测试
 	if !nodeParams.IsUpgrading {
-		_, stderr, err := this.client.Exec(dir + "/" + env.HelperName + " -cmd=test")
+		_, stderr, err := this.client.Exec(env.HelperPath + " -cmd=test")
 		if err != nil {
 			return errors.New("test failed: " + err.Error())
 		}
@@ -72,7 +90,7 @@ func (this *NodeInstaller) Install(dir string, params interface{}, installStatus
 	}
 
 	// 如果是升级则优雅停止先前的进程
-	exePath := dir + "/edge-node/bin/edge-node"
+	var exePath = dir + "/edge-node/bin/edge-node"
 	if nodeParams.IsUpgrading {
 		_, err = this.client.Stat(exePath)
 		if err == nil {
@@ -87,7 +105,7 @@ func (this *NodeInstaller) Install(dir string, params interface{}, installStatus
 	}
 
 	// 解压
-	_, stderr, err := this.client.Exec(dir + "/" + env.HelperName + " -cmd=unzip -zip=\"" + targetZip + "\" -target=\"" + dir + "\"")
+	_, stderr, err := this.client.Exec(env.HelperPath + " -cmd=unzip -zip=\"" + targetZip + "\" -target=\"" + dir + "\"")
 	if err != nil {
 		return err
 	}

internal/installers/ssh_client.go

@@ -165,7 +165,14 @@ func (this *SSHClient) Mkdir(path string) error {
 }
 
 func (this *SSHClient) MkdirAll(path string) error {
-	return this.sftp.MkdirAll(path)
+	err := this.sftp.MkdirAll(path)
+	if err != nil && this.sudo {
+		_, _, err2 := this.execSudo("mkdir -p "+path, this.sudoPassword)
+		if err2 == nil {
+			return nil
+		}
+	}
+	return err
 }
 
 func (this *SSHClient) Chmod(path string, mode os.FileMode) error {