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Trondh
Asked: 2016-05-25 09:22:26 +0800 CST

Invoke-DscResource against a resource without a module

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On the current version of WMF5, I try and invoke a DSC resource using Invoke-DSCResource like so:

$destinationPath="$env:SystemDrive\DirectAccess.txt"
$fileContents="This file is create by Invoke-DscResource"
$result = Invoke-DscResource -Name File -Method Test -Property @{
DestinationPath=$destinationPath
Contents=$fileContents } -Verbose
$result | fl *

However, I'm asked for a module name for the "File" resource.

Doing Get-DscResource File lists the dsc resource, but the "module" property is empty. How can I figure out which module to pass Invoke-DscResource? Where (in what module) does the "File" resource really live?

powershell dsc

2 Answers

  1. PSDesiredStateConfiguration was the correct module (can be seen in compiled mof when using the file resource). Apparently "File" is a weird DSC resource.

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  2. The File resource in DSC is implemented as a WMI provider (the only resource that way) while the rest of the resources are implemented as PowerShell resources. Invoke-DscResource only works with PowerShell resources hence you will not be able to invoke it on File.

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