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Azure Virtual Machine 之 如何利用Management Class Libraries 创建VM
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之前发的blog简单的介绍了如何使用Management Class Libraries 来控制Azure platform。
但由于官方并没有提供文档，所以我们只能够通过自己研究来摸索使用该类库的方法。
在使用过程中我发现可以再抽象出一层中间层，从而让该类库的使用更趋近于Management REST API。
下面以创建一个Virtual Machine 为例让我们来了解如何使用该类库来操作Virtual Machine
首先我们要知道，在Azure Platform中，任何一个VM Instance都要运行在一个HostedService 里面的Deployment下面的。
所以在使用过程中我们需要首先创建一个Hosted Service。
我们可以通过以下两个方法来进行创建：
public static void createCloudServiceByLocation(string cloudServiceName, string location)
{
ComputeManagementClient client = new ComputeManagementClient(getCredentials());
HostedServiceCreateParameters hostedServiceCreateParams = new HostedServiceCreateParameters
{
ServiceName = cloudServiceName,
Location = location,
Label = EncodeToBase64(cloudServiceName),
};
try
{
client.HostedServices.Create(hostedServiceCreateParams);
}
catch (CloudException e)
{
throw e;
} }
public static void createCloudServiceByAffinityGroup(string cloudServiceName, string affinityGroupName)
{
ComputeManagementClient client = new ComputeManagementClient(getCredentials());
HostedServiceCreateParameters hostedServiceCreateParams = new HostedServiceCreateParameters
{
ServiceName = cloudServiceName,
AffinityGroup = affinityGroupName,
Label = EncodeToBase64(cloudServiceName),
};
try
{
client.HostedServices.Create(hostedServiceCreateParams);
}
catch (CloudException e)
{
throw e;
} }
在有了HostedService之后，我们可以通过两种方式来创建VM。
第一种：首先创建一个Deployment，然后再通过添加角色来向这个Deployment中添加Virtual Machine，这样需要与Azure平台交互两次。
第二种：直接调用创建虚拟机部署，这样将在一个Request中创建一个虚拟机的Deployment并且将添加1或多个Virtual Machine到该Deployment下面。
我们可以通过创建自己的Extension Class Library来使得操作更趋向于REST API，一下是我抽象层的代码：
public static class MyVirtualMachineExtension
{
/// <summary>
/// Instantiation a new VM Role
/// </summary>
public static Role CreateVMRole(this IVirtualMachineOperations client, string cloudServiceName, string roleName, VirtualMachineRoleSize roleSize, string userName, string password, OSVirtualHardDisk osVHD)
{
Role vmRole = new Role
{
RoleType = VirtualMachineRoleType.PersistentVMRole.ToString(),
RoleName = roleName,
Label = roleName,
RoleSize = roleSize,
ConfigurationSets = new List<ConfigurationSet>(),
OSVirtualHardDisk = osVHD
};
ConfigurationSet configSet = new ConfigurationSet
{
ConfigurationSetType = ConfigurationSetTypes.WindowsProvisioningConfiguration,
EnableAutomaticUpdates = true,
ResetPasswordOnFirstLogon = false,
ComputerName = roleName,
AdminUserName = userName,
AdminPassword = password,
InputEndpoints = new BindingList<InputEndpoint>
{
new InputEndpoint { LocalPort = , Name = "RDP", Protocol = "tcp" },
new InputEndpoint { LocalPort = , Port = , Name = "web", Protocol = "tcp" }
}
};
vmRole.ConfigurationSets.Add(configSet);
return vmRole;
} public static OSVirtualHardDisk CreateOSVHD(this IVirtualMachineImageOperations operation, string cloudserviceName, string vmName, string storageAccount, string imageFamiliyName)
{
try
{
var osVHD = new OSVirtualHardDisk
{
MediaLink = GetVhdUri(string.Format("{0}.blob.core.windows.net/vhds", storageAccount), cloudserviceName, vmName),
SourceImageName = GetSourceImageNameByFamliyName(operation, imageFamiliyName)
};
return osVHD;
}
catch (CloudException e)
{ throw e;
} } private static string GetSourceImageNameByFamliyName(this IVirtualMachineImageOperations operation, string imageFamliyName)
{
var disk = operation.List().Where(o => o.ImageFamily == imageFamliyName).FirstOrDefault();
if (disk != null)
{
return disk.Name;
}
else
{
throw new CloudException(string.Format("Can't find {0} OS image in current subscription"));
}
} private static Uri GetVhdUri(string blobcontainerAddress, string cloudServiceName, string vmName, bool cacheDisk = false, bool https = false)
{
var now = DateTime.UtcNow;
string dateString = now.Year + "-" + now.Month + "-" + now.Day; var address = string.Format("http{0}://{1}/{2}-{3}-{4}-{5}-650.vhd", https ? "s" : string.Empty, blobcontainerAddress, cloudServiceName, vmName, cacheDisk ? "-CacheDisk" : string.Empty, dateString);
return new Uri(address);
} public static void CreateVMDeployment(this IVirtualMachineOperations operations, string cloudServiceName, string deploymentName, List<Role> roleList, DeploymentSlot slot = DeploymentSlot.Production)
{ try
{
VirtualMachineCreateDeploymentParameters createDeploymentParams = new VirtualMachineCreateDeploymentParameters
{ Name = deploymentName,
Label = cloudServiceName,
Roles = roleList,
DeploymentSlot = slot
};
operations.CreateDeployment(cloudServiceName, createDeploymentParams);
}
catch (CloudException e)
{
throw e;
}
} public static void AddRole(this IVirtualMachineOperations operations, string cloudServiceName, string deploymentName, Role role, DeploymentSlot slot = DeploymentSlot.Production)
{
try
{
VirtualMachineCreateParameters createParams = new VirtualMachineCreateParameters
{
RoleName = role.Label,
RoleSize = role.RoleSize,
OSVirtualHardDisk = role.OSVirtualHardDisk,
ConfigurationSets = role.ConfigurationSets,
AvailabilitySetName = role.AvailabilitySetName,
DataVirtualHardDisks = role.DataVirtualHardDisks
}; operations.Create(cloudServiceName, deploymentName, createParams);
}
catch (CloudException e)
{
throw e;
} }
}
整体programe代码如下：
class Program
{ public const string base64EncodedCertificate = "";
public const string subscriptionId = ""; public static string vmName = "Azure111";
public static string location = "East Asia";
public static string storageAccountName = "superdino";
public static string userName = "Dino";
public static string password = "PassWord1！"; public static string imageFamiliyName = "Windows Server 2012 Datacenter"; static void Main(string[] args)
{
ComputeManagementClient client = new ComputeManagementClient(getCredentials());
//You need a hosted service host VM.
try
{
client.HostedServices.Get(vmName);
}
catch (CloudException e)
{
createCloudServiceByLocation(vmName, location);
} var OSVHD = client.VirtualMachineImages.CreateOSVHD(vmName, vmName, storageAccountName, imageFamiliyName);
var VMROle = client.VirtualMachines.CreateVMRole(vmName, vmName, VirtualMachineRoleSize.Small, userName, password, OSVHD);
List<Role> roleList = new List<Role>{
VMROle
};
client.VirtualMachines.CreateVMDeployment(vmName, vmName, roleList);
Console.WriteLine("Create VM success");
client.VirtualMachines.AddRole("CloudServiceName", "ExsitDeploymentName", VMROle); Console.ReadLine();
} public static void createCloudServiceByLocation(string cloudServiceName, string location)
{
ComputeManagementClient client = new ComputeManagementClient(getCredentials());
HostedServiceCreateParameters hostedServiceCreateParams = new HostedServiceCreateParameters
{
ServiceName = cloudServiceName,
Location = location,
Label = EncodeToBase64(cloudServiceName),
};
try
{
client.HostedServices.Create(hostedServiceCreateParams);
}
catch (CloudException e)
{
throw e;
} }
public static void createCloudServiceByAffinityGroup(string cloudServiceName, string affinityGroupName)
{
ComputeManagementClient client = new ComputeManagementClient(getCredentials());
HostedServiceCreateParameters hostedServiceCreateParams = new HostedServiceCreateParameters
{
ServiceName = cloudServiceName,
AffinityGroup = affinityGroupName,
Label = EncodeToBase64(cloudServiceName),
};
try
{
client.HostedServices.Create(hostedServiceCreateParams);
}
catch (CloudException e)
{
throw e;
} }
public static string EncodeToBase64(string toEncode)
{
byte[] toEncodeAsBytes
= System.Text.ASCIIEncoding.ASCII.GetBytes(toEncode);
string returnValue
= System.Convert.ToBase64String(toEncodeAsBytes);
return returnValue;
} public static SubscriptionCloudCredentials getCredentials()
{
return new CertificateCloudCredentials(subscriptionId, new X509Certificate2(Convert.FromBase64String(base64EncodedCertificate)));
} }
