Registration of the Dsc Agent with the server failed

DSC
1

Hello,

Setting up the DSC pull server and the node for the first time and I am hitting an error that I couldn’t solve. Please help.

Server configuration

Server in Azure

configuration Sample_xDscWebServiceRegistration
{
    param
    (
        [string[]]$NodeName = 'localhost',

        [ValidateNotNullOrEmpty()]
        [string] $certificateThumbPrint,

        [Parameter(HelpMessage='This should be a string with enough entropy (randomness) to protect the registration of clients to the pull server.  We will use new GUID by default.')]
        [ValidateNotNullOrEmpty()]
        [string] $RegistrationKey   # A guid that clients use to initiate conversation with pull server
    )

    Import-DSCResource -ModuleName PSDesiredStateConfiguration
    Import-DSCResource -ModuleName xPSDesiredStateConfiguration

    Node $NodeName
    {
        WindowsFeature DSCServiceFeature
        {
            Ensure = "Present"
            Name   = "DSC-Service"
        }

        xDscWebService PSDSCPullServer
        {
            Ensure                  = "Present"
            EndpointName            = "PSDSCPullServer"
            Port                    = 443
            PhysicalPath            = "$env:SystemDrive\inetpub\PSDSCPullServer"
            CertificateThumbPrint   = $certificateThumbPrint
            ModulePath              = "$env:PROGRAMFILES\WindowsPowerShell\DscService\Modules"
            ConfigurationPath       = "$env:PROGRAMFILES\WindowsPowerShell\DscService\Configuration"
            State                   = "Started"
            DependsOn               = "[WindowsFeature]DSCServiceFeature"
            RegistrationKeyPath     = "$env:PROGRAMFILES\WindowsPowerShell\DscService"
            AcceptSelfSignedCertificates = $true
            UseSecurityBestPractices     = $true
            Enable32BitAppOnWin64   = $false
        }

        File RegistrationKeyFile
        {
            Ensure          = 'Present'
            Type            = 'File'
            DestinationPath = "$env:ProgramFiles\WindowsPowerShell\DscService\RegistrationKeys.txt"
            Contents        = $RegistrationKey
        }
    }
}

PS C:\Program Files\WindowsPowerShell\DscService\Configuration> Get-DscConfigurationStatus

Status StartDate Type Mode RebootRequested NumberOfResources

Success 12/23/2020 9:05:38 PM Consistency PUSH False 3

Also created the testconfig.mof and the corresponding .checksum under the DSCService\Configurations folder

Client configuration

Test client machine - local desktop

Created the metamof using this configuration

[DSCLocalConfigurationManager()]
configuration PullClientConfigNames
{
    Node localhost
    {
        Settings
        {
            RefreshMode = 'Pull'
            RefreshFrequencyMins = 30
            ConfigurationMode = 'ApplyAndAutoCorrect'
            RebootNodeIfNeeded = $true
        }
        ConfigurationRepositoryWeb dsc-test
        {
            ServerURL = 'https://dsc-test.preprod.com/PSDSCPullServer.svc/'
            AllowUnsecureConnection = $true
            RegistrationKey = 'fc2a988a-aacf-4c6e-a388-fdd0c42338a8'
            ConfigurationNames = @('testconfig')
        }
    }
}
PullClientConfigNames

When running the command

Set-DscLocalConfigurationManager -Path .\PullClientConfigNames -Verbose

Getting the below error message

VERBOSE: Performing the operation “Start-DscConfiguration: SendMetaConfigurationApply” on target “MSFT_DSCLocalConfigurationManager”.
VERBOSE: Perform operation ‘Invoke CimMethod’ with following parameters, ‘‘methodName’ = SendMetaConfigurationApply,‘className’ = MSFT_DSCLocalConfigurationManager,‘namespaceName’ = root/Microsoft/Windows/DesiredStateConfiguration’.
VERBOSE: An LCM method call arrived from computer desktop-HOME with user sid S-1-5-21-1893490152-1803344854-317642803-1002.
VERBOSE: [desktop-HOME]: LCM: [ Start Set ]
VERBOSE: [desktop-HOME]: LCM: [ Start Resource ] [MSFT_DSCMetaConfiguration]
VERBOSE: [desktop-HOME]: LCM: [ Start Set ] [MSFT_DSCMetaConfiguration]
VERBOSE: [desktop-HOME]: LCM: [ End Set ] [MSFT_DSCMetaConfiguration] in 0.0340 seconds.
VERBOSE: [desktop-HOME]: LCM: [ End Resource ] [MSFT_DSCMetaConfiguration]
VERBOSE: [desktop-HOME]: LCM: [ End Set ]
Registration of the Dsc Agent with the server https://dsc-test.preprod.com/PSDSCPullServer.svc/ failed. The underlying error is: The PowerShell DSC resource is not a valid Desired State Configuration resource. .

  • CategoryInfo : InvalidOperation: (root/Microsoft/…gurationManager:String) , CimException
  • FullyQualifiedErrorId : Pull_Registration_ManagedPluginFailure
  • PSComputerName : localhost

VERBOSE: Operation ‘Invoke CimMethod’ complete.
VERBOSE: Set-DscLocalConfigurationManager finished in 0.399 seconds.

Note: I have the root cert from the pull server copied to the trusted certs on my desktop.

 

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