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【Azure Developer】调用SDK的runPowerShellScript方法,在Azure VM中执行PowerShell脚本示例

2021-04-22 12:00 141 查看 https://www.cnblogs.com/luligh

当需要通过代码的方式执行PowerShell脚本时,可以参考以下的示例。

 

 

 

Azure SDK中提供了两个方法来执行PowerShell脚本 (SDK Source Code: https://github.com/Azure/azure-libraries-for-java/blob/master/azure-mgmt-compute/src/main/java/com/microsoft/azure/management/compute/implementation/VirtualMachineImpl.java#L400)

  • public RunCommandResult runPowerShellScript(String groupName, String name, List<String> scriptLines, List<RunCommandInputParameter> scriptParameters)
  • public Observable<RunCommandResult> runPowerShellScriptAsync(List<String> scriptLines, List<RunCommandInputParameter> scriptParameters)

在使用的时候,需要注意的是参数scriptLines 和 scriptParameters。 下面部分为关键代码,以Java SDK的同步方法runPowerShellScript为例

Azure azure = null;

azure = Azure.authenticate(credentials).withSubscription("xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx");

// 获取虚拟机对象
VirtualMachine testvm = azure.virtualMachines().getById(
"/subscriptions/xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx/resourceGroups/vm resource group /providers/Microsoft.Compute/virtualMachines/vm name");
//testvm.start();

// 准备PowerShell脚本
List<String> scriptLines = new ArrayList<String>();
scriptLines.add(" param([string]$arg1, [string]$arg2 )");
scriptLines.add(" Write-Host This is a sample script with parameters $arg1 and $arg2");
scriptLines.add(" Get-Host | Select-Object Version");

//设置参数arg1 和 arg2
List<RunCommandInputParameter> scriptParameters = new ArrayList<RunCommandInputParameter>();
RunCommandInputParameter arg1 = new RunCommandInputParameter(){};
arg1.withName("arg1");
arg1.withValue("test1");
RunCommandInputParameter arg2 = new RunCommandInputParameter(){};
arg2.withName("arg2");
arg2.withValue("test2");

scriptParameters.add(arg1);
scriptParameters.add(arg2);

//执行 PowerShell
RunCommandResult rcresult = testvm.runPowerShellScript("vm-rg", "lbpstest01", scriptLines, scriptParameters);

System.out.println(rcresult.value().get(0).message());
System.out.println(rcresult.value().get(1).message());

注意:

  1. 在获取 azure对象时,需要通过AAD认证。并且当前使用的认证有权限操作所选择的虚拟机(VM)。获取认证信息部分参考博文 “使用Java代码启动Azure VM(虚拟机)
  2. 如PowerShell脚本中需要传入参数,则必须在脚本中进行声明,如:param([string]$arg1, [string]$arg2 ),然后通过scriptParameters对象传入。
  3. PowerShell执行成功的结果包含在RunCommandResult对象的Value 1中,如果所输入的PowerShell脚本有语法等操作,则在Value 2中输出详细的异常消息.

在执行PowerShell脚本时,如发现脚本有错误。在RunCommandResult中会返回PowerShell提示的错误信息:

错误的PowerShell脚本
RunCommandResult中的提示消息

示例完整代码:

package org.example;

import java.util.ArrayList;
import java.util.List;

import com.microsoft.azure.AzureEnvironment;
import com.microsoft.azure.credentials.ApplicationTokenCredentials;
import com.microsoft.azure.credentials.AzureTokenCredentials;
import com.microsoft.azure.management.Azure;
import com.microsoft.azure.management.compute.*;

/**
* s Hello world!
*
*/
public class App {
public static void main(String[] args)

{
//使用AAD Application 方式获取 认证
AzureTokenCredentials credentials = new ApplicationTokenCredentials("application id",
"tenant id "securt key",
AzureEnvironment.AZURE_CHINA);
Azure azure = null;

azure = Azure.authenticate(credentials).withSubscription("subscription id");

// 获取虚拟机对象
VirtualMachine testvm = azure.virtualMachines().getById("resource id");
//testvm.start();

// 准备PowerShell脚本
List<String> scriptLines = new ArrayList<String>();
scriptLines.add(" param([string]$arg1, [string]$arg2)");
scriptLines.add(" Write-Host This is a sample script with parameters $arg1 and $arg2");
scriptLines.add(" Get-Host | Select-Object Version");

//设置参数arg1 和 arg2
List<RunCommandInputParameter> scriptParameters = new ArrayList<RunCommandInputParameter>();
RunCommandInputParameter arg1 = new RunCommandInputParameter(){};
arg1.withName("arg1");
arg1.withValue("test1");
RunCommandInputParameter arg2 = new RunCommandInputParameter(){};
arg2.withName("arg2");
arg2.withValue("test2");

scriptParameters.add(arg1);
scriptParameters.add(arg2);

//执行 PowerShell
RunCommandResult rcresult = testvm.runPowerShellScript("vm-rg", "lbpstest01", scriptLines, scriptParameters);

System.out.println(rcresult.value().get(0).message());
System.out.println(rcresult.value().get(1).message());

System.out.println("Hello World!");

}
}

 

在POM.XML中引用的SDK Version:

<dependency>
<groupId>com.microsoft.azure</groupId>
<artifactId>azure</artifactId>
<version>1.37.1</version>
</dependency>

执行结果的正确输出:

 

 

参考资料

使用Java代码启动Azure VM(虚拟机): https://www.cnblogs.com/lulight/p/14295089.html

Run PowerShell scripts in your Windows VM by using Run Commandhttps://docs.microsoft.com/en-us/azure/virtual-machines/windows/run-command#azure-cli

azure-libraries-for-java VirtualMachineImpl.java : https://github.com/Azure/azure-libraries-for-java/blob/master/azure-mgmt-compute/src/main/java/com/microsoft/azure/management/compute/implementation/VirtualMachineImpl.java#L400

 

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