c# - 用于挂载azure云驱动器的控制台应用程序

Question

我想从我的私有(private)容器挂载 vhd。谷歌之后我发现它只能通过.net 实现。我是一个比较喜欢JAVA的人。我需要一个 C# 批处理脚本或代码(以便我可以获得 exe 文件)，它可以在启动时自动运行并挂载 vhd。所以我决定创建一个控制台应用程序来获取 exe 文件。(我对 c#/Visual studio 的了解很少)我正在使用以下 C# 控制台应用程序来执行此操作。

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Net;
using System.Threading;
using Microsoft.WindowsAzure;
using Microsoft.WindowsAzure.Diagnostics;
using Microsoft.WindowsAzure.ServiceRuntime;
using Microsoft.WindowsAzure.StorageClient;

using Microsoft.WindowsAzure.Internal;

namespace WorkerRole1
{
public class WorkerRole : RoleEntryPoint
{
    public override void Run()
    {
        // This is a sample worker implementation. Replace with your logic.
        Trace.WriteLine("WorkerRole1 entry point called", "Starting");
        MountDrive();

        //while (true)
        //{
        //    Thread.Sleep(10000);
        //    Trace.WriteLine("Working", "Information");
        //}
    }

    public override bool OnStart()
    {
        // Set the maximum number of concurrent connections 
        ServicePointManager.DefaultConnectionLimit = 12;

        // For information on handling configuration changes
        // see the MSDN topic at http://go.microsoft.com/fwlink/?LinkId=166357.

        return base.OnStart();
    }

    public void MountDrive()
    {
        string connectionStringSettingName = "DefaultEndpointsProtocol=http;AccountName=abc;AccountKey=xyz";
        string azureContainerName = "vhds";
        string vhdName = "myvhd.vhd";
        CloudStorageAccount storageAccount = CloudStorageAccount.Parse(connectionStringSettingName);
        //CloudStorageAccount storageAccount = CloudStorageAccount.DevelopmentStorageAccount;

        LocalResource localCache = RoleEnvironment.GetLocalResource("MyAzureDriveCache");
        CloudDrive.InitializeCache(localCache.RootPath, localCache.MaximumSizeInMegabytes);
        Trace.WriteLine("RootPath =====" + localCache.RootPath);
        Trace.WriteLine("MaximumSizeInMegabytes =====" + localCache.MaximumSizeInMegabytes);
        // Just checking: make sure the container exists
        CloudBlobClient blobClient = storageAccount.CreateCloudBlobClient();
        blobClient.GetContainerReference(azureContainerName).CreateIfNotExist();

        // Create cloud drive
        CloudDrive myCloudDrive = storageAccount.CreateCloudDrive(
            blobClient
            .GetContainerReference(azureContainerName)
            .GetPageBlobReference(vhdName)
            .Uri.ToString()
        );
        Trace.WriteLine("Uri =====" + blobClient
            .GetContainerReference(azureContainerName)
            .GetPageBlobReference(vhdName)
            .Uri.ToString());

        try
        {
            myCloudDrive.Create(1024);
        }
        catch (CloudDriveException ex)
        {
            // handle exception here
            // exception is also thrown if all is well but the drive already exists
        }

        string driveLetter = myCloudDrive.Mount(50, DriveMountOptions.Force);//Here It throws a Exception
        Trace.WriteLine("Drive =====" + driveLetter);

        for (int i = 0; i < 10; i++)
        {
            System.IO.File.WriteAllText(driveLetter + "\\" + i.ToString() + ".txt", "Test");
        }


    }

}
}

但我不断收到异常 ERROR_DEVFABRIC_LOCAL_MOUNT_ONLY

string driveLetter = myCloudDrive.Mount(50, DriveMountOptions.Force);

请告诉我哪里出错了？

Answer 1

当RoleEnvironment.IsAvailable 设置为false 时，这意味着您未在Windows Azure Web/Worker/VM 角色中运行。 Windows Azure 驱动器仅在安装在这些角色中时才起作用(因为它取决于 RoleEnvironment)。

更多信息可以在whitepaper中找到.