DSCResources/MSFT_xAzureVMDscConfiguration/MSFT_xAzureVMDscConfiguration.psm1
|
# Purpose: # Resource to Publish a Dsc Configuration archive to Azure storage # Prerequisite: Azure PowerShell SDK if (-not (Get-Module Azure)) { throw "Azure module is not present in $env:PSModulePath" } #region GET function Get-TargetResource { [CmdletBinding()] [OutputType([Hashtable])] param( [Parameter(Mandatory)] [ValidateNotNullOrEmpty()] [string]$StorageAccountName, [string]$ContainerName = 'windows-powershell-dsc', [Parameter(Mandatory)] [ValidateNotNullOrEmpty()] [string]$ConfigurationPath, [ValidateNotNullOrEmpty()] [string]$AzureSubscriptionName, [ValidateNotNullOrEmpty()] [string]$AzurePublishSettingsPath ) if ($AzureSubscriptionName -and $AzurePublishSettingsPath) { Write-Verbose "Azure Publish Settings provided. AzureSubscriptionName = $AzureSubscriptionName, AzurePublishSettingsPath = $AzurePublishSettingsPath" Import-AzurePublishSettingsFile $AzurePublishSettingsPath Set-AzureSubscription -SubscriptionName $AzureSubscriptionName } Write-Verbose "Storage Account Name = $StorageAccountName" $storageAccountKey = (Get-AzureStorageKey $StorageAccountName).Primary $Script:StorageContext = New-AzureStorageContext -StorageAccountName $StorageAccountName -StorageAccountKey $storageAccountKey -Protocol https Write-Verbose "ConfigurationPath = $ConfigurationPath" $Script:ConfigFileName = [IO.Path]::GetFileName($ConfigurationPath) $storageBlobArchive = Get-AzureStorageBlob -Blob "$Script:ConfigFileName.zip" -Container $ContainerName -Context $Script:StorageContext -ErrorAction SilentlyContinue $blobUri = $($storageBlobArchive.ICloudBlob.Uri.AbsoluteUri) Write-Verbose "Blob Uri is $blobUri" $returnValue = @{ BlobUri = $blobUri } return $returnValue } #endregion #region SET function Set-TargetResource { [CmdletBinding()] param( [Parameter(Mandatory)] [ValidateNotNullOrEmpty()] [string]$StorageAccountName, [ValidateSet('Present','Absent')] [string]$Ensure = 'Present', [string]$ContainerName = 'windows-powershell-dsc', [Parameter(Mandatory)] [ValidateNotNullOrEmpty()] [string]$ConfigurationPath, [ValidateNotNullOrEmpty()] [string]$AzureSubscriptionName, [ValidateNotNullOrEmpty()] [string]$AzurePublishSettingsPath ) switch ($Ensure) { 'Present' { Write-Verbose "Ensure is set to $Ensure. Calling Publish-AzureVMDscConfiguration to create the Configuration and Resource archive in Storage `"$($Script:StorageContext.StorageAccountName)`"" Publish-AzureVMDscConfiguration -ConfigurationPath $ConfigurationPath -StorageContext $Script:StorageContext -Force -Verbose } 'Absent' { Write-Verbose "Ensure is set to $Ensure. Calling Remove-AzureStorageBlob to remove the Blob from Storage `"$($Script:StorageContext.StorageAccountName)`"" Remove-AzureStorageBlob -Blob "$Script:ConfigFileName.zip" -Container $ContainerName -Force } } } #endregion #region TEST function Test-TargetResource { [CmdletBinding()] [OutputType([Boolean])] param( [Parameter(Mandatory)] [ValidateNotNullOrEmpty()] [string]$StorageAccountName, [ValidateSet('Present','Absent')] [string]$Ensure = 'Present', [string]$ContainerName = 'windows-powershell-dsc', [Parameter(Mandatory)] [ValidateNotNullOrEmpty()] [string]$ConfigurationPath, [ValidateNotNullOrEmpty()] [string]$AzureSubscriptionName, [ValidateNotNullOrEmpty()] [string]$AzurePublishSettingsPath ) Write-Verbose "Invoke Get-TargetResource to obtain the Absolute Uri to the Blob" $parameters = @{} $parameters["StorageAccountName"] = $StorageAccountName $parameters["ContainerName"] = $ContainerName $parameters["ConfigurationPath"] = $ConfigurationPath if($AzureSubscriptionName) { $parameters["AzureSubscriptionName"] = $AzureSubscriptionName } if($AzurePublishSettingsPath) { $parameters["AzurePublishSettingsPath"] = $AzurePublishSettingsPath } $blobUriObj = Get-TargetResource @parameters switch ($Ensure) { 'Present' { if (-not $($blobUriObj.BlobUri)) { Write-Verbose "Ensure is set to $Ensure. But the archive is absent in Storage. We need to Publish the archive to Storage" return $false } } 'Absent' { if ($($blobUriObj.BlobUri)) { Write-Verbose "Ensure is set to $Ensure. But the archive is present in Storage. We need to Remove the archive from Storage" return $false } } } return $true } #endregion Export-ModuleMember -function *-TargetResource |