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Troubleshoot Azure Automation State Configuration issues

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Note

Azure Automation State Configuration will be retired on September 30, 2027, please transition to Azure Machine Configuration by that date. For more information, see the blog post announcement. The Azure Machine Configuration service combines features of DSC Extension, Azure Automation State Configuration, and the most commonly requested features from customer feedback. Azure Machine Configuration also includes hybrid machine support through Arc-enabled servers.

Caution

Azure Automation DSC for Linux has retired on 30 September 2023. For more information, see the announcement.

This article provides information on troubleshooting and resolving issues that occur while you compile or deploy configurations in Azure Automation State Configuration. For general information about the State Configuration feature, see Azure Automation State Configuration overview.

Diagnose an issue

When you receive a compilation or deployment error for configuration, here are a few steps to help you diagnose the issue.

1. Ensure that your configuration compiles successfully on the local machine

Azure Automation State Configuration is built on PowerShell Desired State Configuration (DSC). You can find the documentation for the DSC language and syntax in the PowerShell DSC Docs.

By compiling a DSC configuration on your local machine, you can discover and resolve common errors, such as:

  • Missing modules.
  • Syntax errors.
  • Logic errors.

2. View DSC logs on your node

If your configuration compiles successfully, but fails when applied to a node, you can find detailed information in the DSC logs. For information about where to find these logs, see Where are the DSC Event Logs.

The xDscDiagnostics module can assist you in parsing detailed information from the DSC logs. If you contact support, they require these logs to diagnose your issue.

You can install the xDscDiagnostics module on your local machine by following the instructions in Install the stable version module.

To install the xDscDiagnostics module on your Azure machine, use Invoke-AzVMRunCommand. You can also use the Run command option in the Azure portal by following the steps in Run PowerShell scripts in your Windows VM with Run Command.

For information on using xDscDiagnostics, see Using xDscDiagnostics to analyze DSC logs. See also xDscDiagnostics Cmdlets.

3. Ensure that the nodes and the Automation workspace have required modules

DSC depends on modules installed on the node. When you use Azure Automation State Configuration, import any required modules into your Automation account by following the steps in Import Modules. Configurations can also have a dependency on specific versions of modules. For more information, see Troubleshoot modules.

Scenario: A configuration with special characters can't be deleted from the portal

Issue

When you attempt to delete a DSC configuration from the portal, you see the following error:

An error occurred while deleting the DSC configuration '<name>'. Error-details: The argument
configurationName with the value <name> is not valid. Valid configuration names can contain only
letters, numbers, and underscores. The name must start with a letter. The length of the name must be
between 1 and 64 characters.

Cause

This error is a temporary issue. Try again later.

Resolution

Use the Remove-AzAutomationDscConfiguration cmdlet to delete the configuration.

Scenario: Failed to register the DSC Agent

Issue

You receive an error when you use Set-DscLocalConfigurationManager or another DSC cmdlet.

Registration of the Dsc Agent with the server
https://<location>-agentservice-prod-1.azure-automation.net/accounts/00000000-0000-0000-0000-000000000000
failed. The underlying error is: Failed to register Dsc Agent with AgentId
00000000-0000-0000-0000-000000000000 with the server
https://<location>-agentservice-prod-1.azure-automation.net/accounts/00000000-0000-0000-0000-000000000000/Nodes(AgentId='00000000-0000-0000-0000-000000000000').
    + CategoryInfo          : InvalidResult: (root/Microsoft/...gurationManager:String) [], CimException
    + FullyQualifiedErrorId : RegisterDscAgentCommandFailed,Microsoft.PowerShell.DesiredStateConfiguration.Commands.RegisterDscAgentCommand
    + PSComputerName        : <computerName>

Cause

Network problem can cause this error. Check your firewall settings or if the machine being behind a proxy server.

Resolution

Verify that your machine has access to the proper endpoints for DSC and try again. For a list of ports and addresses needed, see Network planning.

Scenario: Status reports return the response code Unauthorized

Issue

When you register a node with Azure Automation State Configuration, you receive one of the following error messages:

The attempt to send status report to the server https://{your Automation account
URL}/accounts/xxxxxxxxxxxxxxxxxxxxxx/Nodes(AgentId='xxxxxxxxxxxxxxxxxxxxxxxxx')/SendReport returned
unexpected response code Unauthorized.

VM has reported a failure when processing extension 'Microsoft.Powershell.DSC / Registration of the
Dsc Agent with the server failed.

Cause

The following are the possible causes:

Resolution

Use the following steps to reregister the failing DSC node.

Step 1: Unregister the node

  1. In the Azure portal, go to Home > Automation Accounts > (your Automation account) > State configuration (DSC).
  2. Select Nodes, and select the node having trouble.
  3. Select Unregister to unregister the node.

Step 2: Uninstall the DSC extension from the node

  1. In the Azure portal, go to Home > Virtual Machine > (failing node) > Extensions.
  2. Select Microsoft.Powershell.DSC, the PowerShell DSC extension.
  3. Select Uninstall to uninstall the extension.

Step 3: Remove all bad or expired certificates from the node

On the failing node from an elevated PowerShell prompt, run these commands:

$certs = @()
$certs += dir cert:\localmachine\my | ?{$_.FriendlyName -like "DSC"}
$certs += dir cert:\localmachine\my | ?{$_.FriendlyName -like "DSC-OaaS Client Authentication"}
$certs += dir cert:\localmachine\CA | ?{$_.subject -like "CN=AzureDSCExtension*"}
"";"== DSC Certificates found: " + $certs.Count
$certs | FL ThumbPrint,FriendlyName,Subject
If (($certs.Count) -gt 0)
{
    ForEach ($Cert in $certs)
    {
        RD -LiteralPath ($Cert.Pspath)
    }
}

Step 4: Reregister the failing node

  1. In the Azure portal, go to Home > Automation Accounts > (your Automation account) > State configuration (DSC).
  2. Select Nodes.
  3. Select Add.
  4. Select the failing node.
  5. Select Connect, and select your desired options.

Scenario: Node is in failed status with a "Not found" error

Issue

The node has a report with Failed status and contains the error:

The attempt to get the action from server
https://<url>//accounts/<account-id>/Nodes(AgentId=<agent-id>)/GetDscAction failed because a valid
configuration <guid> cannot be found.

Cause

This error typically occurs when the node is assigned to a configuration name, for example, ABC, instead of a node configuration (MOF file) name, for example, ABC.WebServer.

Resolution

  • Make sure that you're assigning the node with the node configuration name and not the configuration name.
  • You can assign a node configuration to a node by using the Azure portal or with a PowerShell cmdlet.
    • In the Azure portal, go to Home > Automation Accounts > (your Automation account) > State configuration (DSC). Then select a node and select Assign node configuration.
    • Use the Set-AzAutomationDscNode cmdlet.

Scenario: No node configurations (MOF files) were produced when a configuration was compiled

Issue

Your DSC compilation job suspends with the error:

Compilation completed successfully, but no node configuration **.mof** files were generated.

Cause

When the expression following the Node keyword in the DSC configuration evaluates to $null, no node configurations are produced.

Resolution

Use one of the following solutions to fix the problem:

  • Make sure that the expression next to the Node keyword in the configuration definition isn't evaluating to Null.
  • If you're passing ConfigurationData when you compile the configuration, make sure that you're passing the values that the configuration expects from the configuration data.

Scenario: The DSC node report becomes stuck in the In Progress state

Issue

The DSC agent outputs:

No instance found with given property values

Cause

This problem can occur if Windows Management Instrumentation (WMI) is corrupted on the node.

Resolution

Follow the instructions in DSC known issues and limitations.

Scenario: Unable to use a credential in a DSC configuration

Issue

Your DSC compilation job suspended with the error:

System.InvalidOperationException error processing property 'Credential' of type <some resource
name>: Converting and storing an encrypted password as plaintext is allowed only if
PSDscAllowPlainTextPassword is set to true.

Cause

This problem can occur when you use a credential in a configuration but didn't provide proper ConfigurationData to set PSDscAllowPlainTextPassword to true for each node configuration.

Resolution

Make sure to pass in the proper ConfigurationData, setting PSDscAllowPlainTextPassword to true for each node configuration. See Compiling DSC configurations in Azure Automation State Configuration.

Scenario: "Failure processing extension" error when enabling a machine from a DSC extension

Issue

When you enable a machine by using a DSC extension, a failure occurs that contains the error:

VM has reported a failure when processing extension 'Microsoft.Powershell.DSC'. Error message: \"DSC
COnfiguration 'RegistrationMetaConfigV2' completed with error(s). Following are the first few:
Registration of the Dsc Agent with the server <url> failed. The underlying error is: The attempt to
register Dsc Agent with Agent Id <ID> with the server <url> return unexpected response code
BadRequest. .\".

Cause

This error typically occurs when the node is assigned a node configuration name that doesn't exist in the service.

Resolution

Make sure that the node name that exactly matches the name in the service, or don't include the node configuration name. This enables the node but doesn't assign a node configuration.

Scenario: "One or more errors occurred" error when registering a node by using PowerShell

Issue

When you register a node by using Register-AzAutomationDSCNode or Register-AzureRMAutomationDSCNode, you receive the following error:

One or more errors occurred.

Cause

This error occurs when you try to register a node in a subscription different from the one used by the Automation account.

Resolution

Treat the cross-subscription node as a node defined for a separate cloud or on-premises. Register the node by using one of these options for enabling machines:

Scenario: "Provisioning has failed" error message

Issue

When you register a node, you see the error:

Provisioning has failed

Cause

This message occurs when there's an issue with connectivity between the node and Azure.

Resolution

Determine if your node is in a virtual private network (VPN) or has other issues connecting to Azure. See Troubleshoot feature deployment issues.

Scenario: Failure with a general error when applying a configuration in Linux

Issue

When you apply a configuration in Linux, a failure occurs that contains the error:

This event indicates that failure happens when LCM is processing the configuration. ErrorId is 1.
ErrorDetail is The SendConfigurationApply function did not succeed.. ResourceId is [resource]name
and SourceInfo is ::nnn::n::resource. ErrorMessage is A general error occurred, not covered by a
more specific error code..

Cause

If the /tmp location is set to noexec, the current version of DSC fails to apply configurations.

Resolution

Remove the noexec option from the /tmp location.

Scenario: Node configuration names that overlap can result in a bad release

Issue

When you use a single configuration script to generate multiple node configurations and some node configuration names are subsets of other names, the compilation service can end up assigning the wrong configuration. This issue only occurs when you use a single script to generate configurations with configuration data per node, and only when the name overlap occurs at the beginning of the string. An example is a single configuration script used to generate configurations based on node data passed as a hashtable using cmdlets, and the node data includes servers named server and 1server.

Cause

This is a known issue with the compilation service.

Resolution

The best workaround is to compile locally or in a CI/CD pipeline and upload the node configuration MOF files directly to the service. If compilation in the service is a requirement, the next best workaround is to split the compilation jobs so that there's no overlap in names.

Scenario: Gateway timeout error on DSC configuration upload

Issue

You receive a GatewayTimeout error when you upload a DSC configuration.

Cause

DSC configurations that take a long time to compile can cause this error.

Resolution

You can make your DSC configurations parse faster by explicitly including the ModuleName parameter for any Import-DSCResource calls.

Scenario: Error while onboarding a machine

Issue

You receive a agent has a problem error when you onboard a machine.

Cause

This is a known issue. You can't assign the same configuration again as the node remains in pending state.

Resolution

To work around the problem, apply a different test configuration and try the original configuration again.

Next steps

If you don't see your problem here or you can't resolve your issue, try one of the following support channels:

  • Get answers from Azure experts through Azure Forums.
  • Connect with @AzureSupport, the official Microsoft Azure account for improving customer experience. Azure Support connects the Azure community to answers, support, and experts.
  • File an Azure support incident. Go to the Azure support site, and select Get Support.