Get-AzVMDSCExtension and Get-AzVMDSCExtensionStatus new parameter set VMParameterSet for new parameter VM

src/Compute/Compute.Test/ScenarioTests/DscExtensionTests.cs

@@ -30,5 +30,12 @@ public void TestGetAzureRmVMDscExtension()
         {
             TestRunner.RunTestScript("Test-GetAzureRmVMDscExtension");
         }
+
+        [Fact]
+        [Trait(Category.AcceptanceType, Category.CheckIn)]
+        public void TestDSCExtensionVMPiping()
+        {
+            TestRunner.RunTestScript("Test-DSCExtensionVMPiping");
+        }
     }
 }

src/Compute/Compute.Test/ScenarioTests/DscExtensionTests.ps1

@@ -99,6 +99,112 @@ function Test-GetAzureRmVMDscExtension
     Remove-AzVMDscExtension -ResourceGroupName $rgname -VMName $vmname
 }
 
+<#
+.SYNOPSIS
+Test Get-AzVM piping to Get-AzVMDSCExtensionStatus and Get-AzVMDscExtension cmdlets.
+#>
+function Test-DSCExtensionVMPiping
+{
+    # Setup
+    $loc = Get-ComputeVMLocation;
+    $rgname = Get-ComputeTestResourceName;
+
+    try
+    {
+
+        # VM Profile & Hardware
+        $vmsize = 'Standard_E2s_v3';
+        $vmname = 'v' + $rgname;
+        $domainNameLabel1 = "domain1" + $rgname;
+
+        # Common
+        New-AzResourceGroup -Name $rgname -Location $loc -Force;
+
+        $username = "admin01";
+        $password = Get-PasswordForVM | ConvertTo-SecureString -AsPlainText -Force;
+        $cred = new-object -typename System.Management.Automation.PSCredential -argumentlist $username, $password;
+
+        $p = New-AzVMConfig -VMName $vmname -VMSize $vmsize;
+
+        # NRP
+        $subnet = New-AzVirtualNetworkSubnetConfig -Name ('subnet' + $rgname) -AddressPrefix "10.0.0.0/24";
+        $vnet = New-AzVirtualNetwork -Force -Name ('vnet' + $rgname) -ResourceGroupName $rgname -Location $loc -AddressPrefix "10.0.0.0/16" -Subnet $subnet;
+        $vnet = Get-AzVirtualNetwork -Name ('vnet' + $rgname) -ResourceGroupName $rgname;
+        $subnetId = $vnet.Subnets[0].Id;
+        $pubip = New-AzPublicIpAddress -Force -Name ('pubip' + $rgname) -ResourceGroupName $rgname -Location $loc -AllocationMethod Dynamic -DomainNameLabel ('pubip' + $rgname);
+        $pubip = Get-AzPublicIpAddress -Name ('pubip' + $rgname) -ResourceGroupName $rgname;
+        $pubipId = $pubip.Id;
+        $nic = New-AzNetworkInterface -Force -Name ('nic' + $rgname) -ResourceGroupName $rgname -Location $loc -SubnetId $subnetId -PublicIpAddressId $pubip.Id;
+        $nic = Get-AzNetworkInterface -Name ('nic' + $rgname) -ResourceGroupName $rgname;
+        $nicId = $nic.Id;
+
+        $p = Add-AzVMNetworkInterface -VM $p -Id $nicId;
+        Assert-AreEqual $p.NetworkProfile.NetworkInterfaces.Count 1;
+        Assert-AreEqual $p.NetworkProfile.NetworkInterfaces[0].Id $nicId;
+
+        # Storage Account 
+        $stoname = 'sto' + $rgname;
+        $stotype = 'Standard_GRS';
+        New-AzStorageAccount -ResourceGroupName $rgname -Name $stoname -Location $loc -Type $stotype;
+        Retry-IfException { $global:stoaccount = Get-AzStorageAccount -ResourceGroupName $rgname -Name $stoname; }
+
+        $osDiskName = 'osDisk';
+        $osDiskCaching = 'ReadWrite';
+        $osDiskVhdUri = "https://$stoname.blob.core.windows.net/test/os.vhd";
+        $dataDiskVhdUri1 = "https://$stoname.blob.core.windows.net/test/data1.vhd";
+
+        $p = Set-AzVMOSDisk -VM $p -Name $osDiskName -VhdUri $osDiskVhdUri -Caching $osDiskCaching -CreateOption FromImage;
+	    $p = Add-AzVMDataDisk -VM $p -Name 'testDataDisk1' -Caching 'ReadOnly' -DiskSizeInGB 10 -Lun 1 -VhdUri $dataDiskVhdUri1 -CreateOption Empty;
+
+	    # OS & Image
+        $user = "localadmin";
+        $password = $PLACEHOLDER;
+        $securePassword = ConvertTo-SecureString $password -AsPlainText -Force;
+        $cred = New-Object System.Management.Automation.PSCredential ($user, $securePassword);
+        $computerName = 'test';
+        $vhdContainer = "https://$stoname.blob.core.windows.net/test";
+
+        $p = Set-AzVMOperatingSystem -VM $p -Windows -ComputerName $computerName -Credential $cred -ProvisionVMAgent;
+        $p = Set-AzVMSourceImage -VM $p -PublisherName MicrosoftWindowsServer -Offer WindowsServer -Skus 2012-R2-Datacenter -Version "latest"
+
+        # Virtual Machine
+        New-AzVM -ResourceGroupName $rgname -Location $loc -VM $p;
+
+        # Test DSC Extension
+        $version = '2.19';
+
+        #Install DSC Extension handler
+	    Set-AzVMDscExtension -ResourceGroupName $rgname -VMName $vmname -ArchiveBlobName $null -ArchiveStorageAccountName $stoname -Version $version -Force -Location $loc
+
+        $dscGet = Get-AzVM -ResourceGroupName $rgname -Name $vmname | Get-AzVmDscExtensionStatus;
+        Assert-AreEqual $dscGet.Version $version;
+
+        # Test expected error message when missing ResourceGroup. 
+        $vmname2 = "errorvm";
+        $vmConfig = New-AzVMConfig -Name $vmname2 -VMSize $vmsize;
+        Assert-ThrowsContains {
+            $vmError = $vmconfig | Get-AzVMDSCExtensionStatus; } `
+            "The incoming virtual machine must have a 'resourceGroupName'.";
+
+        # Test Get-AzVMDscExtension piping scenario
+        $dscGetExt = Get-AzVM -ResourceGroupName $rgname -Name $vmname | Get-AzVmDscExtension;
+        Assert-AreEqual $dscGetExt.TypeHandlerVersion $version; 
+
+        # Test expected error message when missing ResourceGroup. 
+        $vmname3 = "errorvm3";
+        $vmConfigError = New-AzVMConfig -Name $vmname3 -VMSize $vmsize;
+        Assert-ThrowsContains {
+            $vmError = $vmconfigError | Get-AzVMDSCExtension; } `
+            "The incoming virtual machine must have a 'resourceGroupName'.";
+    }
+    finally 
+    {
+        # Cleanup
+        Clean-ResourceGroup $rgname;
+    }
+}
+
+
 #helper methods for ARM 
 function Get-DefaultResourceGroupLocation
 {

src/Compute/Compute.Test/ScenarioTests/VirtualMachineTests.ps1

@@ -4523,4 +4523,4 @@ function Test-VirtualMachineGetVMNameAcrossResourceGroups
         Clean-ResourceGroup $rgname;
         Clean-ResourceGroup $rgname2;
     }
-}
+}

src/Compute/Compute/ChangeLog.md

@@ -20,6 +20,7 @@
 
 -->
 ## Upcoming Release
+* New parameter `VM` in new parameter set `VMParameterSet` added to `Get-AzVMDscExtensionStatus` and `Get-AzVMDscExtension` cmdlets. 
 
 ## Version 4.7.0
 * Edited Get-AzVm to filter by `-Name` prior to checking for throttling due to too many resources. 

src/Compute/Compute/Extension/DSC/GetAzureVMDscExtensionCommand.cs

@@ -15,12 +15,14 @@ namespace Microsoft.Azure.Commands.Compute.Extension.DSC
     [Cmdlet("Get", ResourceManager.Common.AzureRMConstants.AzureRMPrefix + "VMDscExtension",DefaultParameterSetName = GetDscExtensionParamSetName),OutputType(typeof(VirtualMachineDscExtensionContext))]
     public class GetAzureVMDscExtensionCommand : VirtualMachineExtensionBaseCmdlet
     {
-        private const string GetDscExtensionParamSetName = "GetDscExtension";
+        private const string GetDscExtensionParamSetName = "GetDscExtension",
+            VMParameterSetName = "VMParameterSet";
 
         [Parameter(
             Mandatory = true,
             Position = 0,
             ValueFromPipelineByPropertyName = true,
+            ParameterSetName = GetDscExtensionParamSetName,
             HelpMessage = "The resource group name.")]
         [ResourceGroupCompleter]
         [ValidateNotNullOrEmpty]
@@ -30,6 +32,7 @@ public class GetAzureVMDscExtensionCommand : VirtualMachineExtensionBaseCmdlet
             Mandatory = true,
             Position = 1,
             ValueFromPipelineByPropertyName = true,
+            ParameterSetName = GetDscExtensionParamSetName,
             HelpMessage = "The virtual machine name.")]
         [ResourceNameCompleter("Microsoft.Compute/virtualMachines", "ResourceGroupName")]
         [ValidateNotNullOrEmpty]
@@ -38,6 +41,7 @@ public class GetAzureVMDscExtensionCommand : VirtualMachineExtensionBaseCmdlet
         [Parameter(
             Position = 2,
             ValueFromPipelineByPropertyName = true,
+            ParameterSetName = GetDscExtensionParamSetName,
             HelpMessage = "Name of the ARM resource that represents the extension. The Set-AzVMDscExtension cmdlet sets this name to  " +
             "'Microsoft.Powershell.DSC', which is the same value used by Get-AzVMDscExtension. Specify this parameter only if you changed " +
             "the default name in the Set cmdlet or used a different resource name in an ARM template.")]
@@ -51,19 +55,43 @@ public class GetAzureVMDscExtensionCommand : VirtualMachineExtensionBaseCmdlet
         [ValidateNotNullOrEmpty]
         public SwitchParameter Status { get; set; }
 
+        [Parameter(
+            ParameterSetName = VMParameterSetName,
+            ValueFromPipeline = true,
+            HelpMessage = "Specifies the virtual machine object the extension is on.")]
+        [ValidateNotNullOrEmpty]
+        public PSVirtualMachine VM { get; set; }
+
         public override void ExecuteCmdlet()
         {
             base.ExecuteCmdlet();
 
+            string virtualMachineName = "";
+            string resourceGroup = "";
+            if (this.ParameterSetName.Equals(VMParameterSetName))
+            {
+                virtualMachineName = this.VM.Name;
+                if (this.VM.ResourceGroupName == null)
+                {
+                    WriteError("The incoming virtual machine must have a 'resourceGroupName'.", this.VM);
+                }
+                resourceGroup = this.VM.ResourceGroupName;
+            }
+            else
+            {
+                virtualMachineName = VMName;
+                resourceGroup = ResourceGroupName;
+            }
+
             if (String.IsNullOrEmpty(Name))
             {
                 Name = DscExtensionCmdletConstants.ExtensionPublishedNamespace + "." + DscExtensionCmdletConstants.ExtensionPublishedName;
             }
 
             if (Status)
             {
-                var result = VirtualMachineExtensionClient.GetWithInstanceView(ResourceGroupName, VMName, Name);
-                var extension = result.ToPSVirtualMachineExtension(this.ResourceGroupName, this.VMName);
+                var result = VirtualMachineExtensionClient.GetWithInstanceView(resourceGroup, virtualMachineName, Name);
+                var extension = result.ToPSVirtualMachineExtension(resourceGroup, virtualMachineName);
 
                 if (
                     extension.Publisher.Equals(DscExtensionCmdletConstants.ExtensionPublishedNamespace,
@@ -80,8 +108,8 @@ public override void ExecuteCmdlet()
             }
             else
             {
-                var result = VirtualMachineExtensionClient.Get(ResourceGroupName, VMName, Name);
-                var extension = result.ToPSVirtualMachineExtension(this.ResourceGroupName, this.VMName);
+                var result = VirtualMachineExtensionClient.Get(resourceGroup, virtualMachineName, Name);
+                var extension = result.ToPSVirtualMachineExtension(resourceGroup, virtualMachineName);
 
                 if (
                     extension.Publisher.Equals(
@@ -157,5 +185,10 @@ private VirtualMachineDscExtensionContext GetDscExtensionContext(PSVirtualMachin
 
             return context;
         }
+
+        private void WriteError(string message, params object[] args)
+        {
+            base.WriteError(new ErrorRecord(new Exception(String.Format(message, args)), "Error", ErrorCategory.NotSpecified, null));
+        }
     }
 }

src/Compute/Compute/Extension/DSC/GetAzureVMDscExtensionStatusCommand.cs

@@ -20,13 +20,17 @@ namespace Microsoft.Azure.Commands.Compute.Extension.DSC
     /// Get-AzVMDscExtensionStatus -ResourceGroupName resgrp1 -VMName vm1
     /// /// Get-AzVMDscExtensionStatus -ResourceGroupName resgrp1 -VMName vm1 -Name DSC
     /// </summary>
-    [Cmdlet("Get", ResourceManager.Common.AzureRMConstants.AzureRMPrefix + "VMDscExtensionStatus"),OutputType(typeof(PSVirtualMachineInstanceView))]
+    [Cmdlet("Get", ResourceManager.Common.AzureRMConstants.AzureRMPrefix + "VMDscExtensionStatus", DefaultParameterSetName = GetDscExtensionParamSetName), OutputType(typeof(PSVirtualMachineInstanceView))]
     public class GetAzureVMDscExtensionStatusCommand : VirtualMachineExtensionBaseCmdlet
     {
+        private const string GetDscExtensionParamSetName = "GetDscExtension",
+            VMParameterSetName = "VMParameterSet";
+
         [Parameter(
             Mandatory = true,
             Position = 0,
             ValueFromPipelineByPropertyName = true,
+            ParameterSetName = GetDscExtensionParamSetName,
             HelpMessage = "The resource group name.")]
         [ResourceGroupCompleter]
         [ValidateNotNullOrEmpty]
@@ -36,6 +40,7 @@ public class GetAzureVMDscExtensionStatusCommand : VirtualMachineExtensionBaseCm
             Mandatory = true,
             Position = 1,
             ValueFromPipelineByPropertyName = true,
+            ParameterSetName = GetDscExtensionParamSetName,
             HelpMessage = "The virtual machine name.")]
         [ResourceNameCompleter("Microsoft.Compute/virtualMachines", "ResourceGroupName")]
         [ValidateNotNullOrEmpty]
@@ -44,26 +49,51 @@ public class GetAzureVMDscExtensionStatusCommand : VirtualMachineExtensionBaseCm
         [Parameter(
             Position = 2,
             ValueFromPipelineByPropertyName = true,
+            ParameterSetName = GetDscExtensionParamSetName,
             HelpMessage = "Name of the ARM resource that represents the extension. The Set-AzVMDscExtension cmdlet sets this name to  " +
             "'Microsoft.Powershell.DSC', which is the same value used by Get-AzVMDscExtension. Specify this parameter only if you changed " +
             "the default name in the Set cmdlet or used a different resource name in an ARM template.")]
         [ResourceNameCompleter("Microsoft.Compute/virtualMachines/extensions", "ResourceGroupName", "VMName")]
         [ValidateNotNullOrEmpty]
         public string Name { get; set; }
 
+        [Parameter(
+            ValueFromPipeline = true,
+            ParameterSetName = VMParameterSetName,
+            HelpMessage = "Specifies the virtual machine object the extension is on.")]
+        [ValidateNotNullOrEmpty]
+        public PSVirtualMachine VM { get; set; }
+
         public override void ExecuteCmdlet()
         {
             base.ExecuteCmdlet();
 
+            string virtualMachineName = "";
+            string resourceGroup = "";
+            if (this.ParameterSetName.Equals(VMParameterSetName))
+            {
+                virtualMachineName = this.VM.Name; 
+                if (this.VM.ResourceGroupName == null)
+                {
+                    WriteError("The incoming virtual machine must have a 'resourceGroupName'.", this.VM);
+                }
+                resourceGroup = this.VM.ResourceGroupName;
+            }
+            else
+            {
+                virtualMachineName = VMName;
+                resourceGroup = ResourceGroupName;
+            }
+
             if (String.IsNullOrEmpty(Name))
             {
                 Name = DscExtensionCmdletConstants.ExtensionPublishedNamespace + "." + DscExtensionCmdletConstants.ExtensionPublishedName;
             }
 
-            var result = VirtualMachineExtensionClient.GetWithInstanceView(ResourceGroupName, VMName, Name);
+            var result = VirtualMachineExtensionClient.GetWithInstanceView(resourceGroup, virtualMachineName, Name);
             if (result != null && result.Body != null)
             {
-                WriteObject(GetDscExtensionStatusContext(result.Body, ResourceGroupName, VMName));
+                WriteObject(GetDscExtensionStatusContext(result.Body, resourceGroup, virtualMachineName));
             }
             else
             {
@@ -104,5 +134,10 @@ private VirtualMachineDscExtensionStatusContext GetDscExtensionStatusContext(
 
             return context;
         }
+
+        private void WriteError(string message, params object[] args)
+        {
+            base.WriteError(new ErrorRecord(new Exception(String.Format(message, args)), "Error", ErrorCategory.NotSpecified, null));
+        }
     }
 }

src/Compute/Compute/help/Get-AzVMDscExtension.md

@@ -13,11 +13,18 @@ Gets the settings of the DSC extension on a particular virtual machine.
 
 ## SYNTAX
 
+### GetDscExtension (Default)
 ```
 Get-AzVMDscExtension [-ResourceGroupName] <String> [-VMName] <String> [[-Name] <String>] [-Status]
  [-DefaultProfile <IAzureContextContainer>] [<CommonParameters>]
 ```
 
+### VMParameterSet
+```
+Get-AzVMDscExtension [-Status] [-VM <PSVirtualMachine>] [-DefaultProfile <IAzureContextContainer>]
+ [<CommonParameters>]
+```
+
 ## DESCRIPTION
 The **Get-AzVMDscExtension** cmdlet gets the settings of the Desired State Configuration (DSC) extension on a particular virtual machine.
 
@@ -54,7 +61,7 @@ Specify this parameter only if you changed the default name in the **Set-AzVMDsc
 
 ```yaml
 Type: System.String
-Parameter Sets: (All)
+Parameter Sets: GetDscExtension
 Aliases:
 
 Required: False
@@ -69,7 +76,7 @@ Specifies the name of the resource group of the virtual machine.
 
 ```yaml
 Type: System.String
-Parameter Sets: (All)
+Parameter Sets: GetDscExtension
 Aliases:
 
 Required: True
@@ -94,12 +101,27 @@ Accept pipeline input: True (ByPropertyName)
 Accept wildcard characters: False
 ```
 
+### -VM
+Specifies the virtual machine object the extension is on.
+
+```yaml
+Type: Microsoft.Azure.Commands.Compute.Models.PSVirtualMachine
+Parameter Sets: VMParameterSet
+Aliases:
+
+Required: False
+Position: Named
+Default value: None
+Accept pipeline input: True (ByValue)
+Accept wildcard characters: False
+```
+
 ### -VMName
 Specifies the name of a virtual machine for which this cmdlet gets the DSC extension.
 
 ```yaml
 Type: System.String
-Parameter Sets: (All)
+Parameter Sets: GetDscExtension
 Aliases:
 
 Required: True