Powershell: Powershell DSC does not work on OSX

[jdcc2]

Anything related to DSC does not seem to work on OSX because of a dependency problem. Related to https://github.com/PowerShell/MMI/issues/33

It is not a problem with Publish-AzVMDscConfiguration, but this happens with anything DSC related.

Steps to reproduce

Publish-AzVMDscConfiguration ".\configuread.ps1" -OutputArchivePath ".\configuread.ps1.zip"

Expected behavior

No errors

Actual behavior

Publish-AzVMDscConfiguration : Configuration script '/Users/jhk/Workspace/tf-azure-dsc/dsc/configuread.ps1' contained parse errors:
At /Users/jhk/Workspace/tf-azure-dsc/dsc/configuread.ps1:1 char:15
+ Configuration NewADForest
+               ~~~~~~~~~~~
System.IO.DirectoryNotFoundException: Unable to find DSC schema store at /etc/opt/omi/conf/dsc/configuration. Please ensure PS DSC for Linux is installed.
   at Microsoft.PowerShell.DesiredStateConfiguration.Internal.DscClassCache.Initialize(Collection`1 errors, List`1 modulePathList)
   at Microsoft.PowerShell.DesiredStateConfiguration.Internal.DscClassCache.LoadDefaultCimKeywords(Dictionary`2 functionsToDefine, Collection`1 errors, List`1 modulePathList, Boolean cacheResourcesFromMultipleModuleVersions)
   at Microsoft.PowerShell.DesiredStateConfiguration.Internal.DscClassCache.LoadDefaultCimKeywords(Collection`1 errors)
   at System.Management.Automation.Language.Parser.ConfigurationStatementRule(IEnumerable`1 customAttributes, Token configurationToken)
At /Users/jhk/Workspace/tf-azure-dsc/dsc/configuread.ps1:2 char:1
+ {
+ ~
Unexpected token '{' in expression or statement.
At /Users/jhk/Workspace/tf-azure-dsc/dsc/configuread.ps1:8 char:52
+         [System.Management.Automation.PSCredential]
+                                                    ~
Missing closing ')' in expression.
At /Users/jhk/Workspace/tf-azure-dsc/dsc/configuread.ps1:9 char:9
+         $Credential,
+         ~~~~~~~~~~~
Unexpected token '$Credential' in expression or statement.
At /Users/jhk/Workspace/tf-azure-dsc/dsc/configuread.ps1:18 char:5
+     )
+     ~
Unexpected token ')' in expression or statement.
At /Users/jhk/Workspace/tf-azure-dsc/dsc/configuread.ps1:63 char:1
+ }
+ ~
Unexpected token '}' in expression or statement.
At /Users/jhk/Workspace/tf-azure-dsc/dsc/configuread.ps1:6 char:9
+         [Parameter(Mandatory = $true)]
+         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Unexpected attribute 'Parameter'.
At /Users/jhk/Workspace/tf-azure-dsc/dsc/configuread.ps1:7 char:9
+         [ValidateNotNullOrEmpty()]
+         ~~~~~~~~~~~~~~~~~~~~~~~~~~
Unexpected attribute 'ValidateNotNullOrEmpty'.
At /Users/jhk/Workspace/tf-azure-dsc/dsc/configuread.ps1:12 char:9
+         [Parameter(Mandatory = $true)]
+         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Unexpected attribute 'Parameter'.
At /Users/jhk/Workspace/tf-azure-dsc/dsc/configuread.ps1:13 char:9
+         [ValidateNotNullOrEmpty()]
+         ~~~~~~~~~~~~~~~~~~~~~~~~~~
Unexpected attribute 'ValidateNotNullOrEmpty'.
At line:1 char:1
+ Publish-AzVMDscConfiguration ".\configuread.ps1" -OutputArchivePath " ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo          : ParserError: (:) [Publish-AzVMDscConfiguration], ParseException
+ FullyQualifiedErrorId : DscConfigurationParseError,Microsoft.Azure.Commands.Compute.Extension.DSC.PublishAzureVMDscConfigurationCommand

Environment data

I tried both the stable version and the preview.

Name                           Value
----                           -----
PSVersion                      7.0.0-preview.4
PSEdition                      Core
GitCommitId                    7.0.0-preview.4
OS                             Darwin 18.7.0 Darwin Kernel Version 18.7.0: Tue Aug 20 16:57:14 PDT 2019; root:xnu-4903.271.2~2…
Platform                       Unix
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0…}
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1
WSManStackVersion              3.0

[PleaseStopAsking]

@amitsara Is this issue being investigated? Travis Plunk mentioned you were looking into this under https://github.com/PowerShell/MMI/issues/33 and while that issue was closed as OMI is obsolete, the issues still exist and make editing DSC configs on MacOS difficult.

[raandree]

Running into this in Azure Cloud Shell. How can I use DSC in the cloud shell then?

[PleaseStopAsking]

This is still an issue on the most recent RC.

[PleaseStopAsking]

Any update on this? Dsc on MacOS is unusable at this point.

[raandree]

@mgreenegit, @nitinbps, is this something you can help?

[thecherrytree]

This is an issue for us as well. @mgreenegit @nitinbps

[thecherrytree]

@PleaseStopAsking - the way the token errors are showing up makes me think this is more of a unix conversion issue. Have you tried running unix2dos or dos2unix on your .ps1 before running the Start-DscConfiguration? I've seen that the DSC configuration when using an ARM Template will error out with a vanilla configuration file developed on a Mac, but will work fine with one developed on a windows device. The extra line breaks in the configuration file might actually be the cause of the weird schema and parsing errors.

I didn't try it myself, I ended up just doing everything on a windows VM as a work around. This conversion issue sort of came to me after the fact.

[tigerdeccan]

same issue with me , updated Az modules and powershel7 as well. still no luck. My understanding is OMi is not used on Mac but for somereason it still expects it ,
System.IO.DirectoryNotFoundException: Unable to find DSC schema store at /etc/opt/omi/conf/dsc/configuration. Please ensure PS DSC for Linux is installed.
at Microsoft.PowerShell.DesiredStateConfiguration.Internal.DscClassCache.Initialize(Collection1 errors, List1 modulePathList)
at Microsoft.PowerShell.DesiredStateConfiguration.Internal.DscClassCache.LoadDefaultCimKeywords(Dictionary2 functionsToDefine, Collection1 errors, List1 modulePathList, Boolean cacheResourcesFromMultipleModuleVersions) at Microsoft.PowerShell.DesiredStateConfiguration.Internal.DscClassCache.LoadDefaultCimKeywords(Collection1 errors)
at System.Management.Automation.Language.Parser.ConfigurationStatementRule(IEnumerable`1 customAttributes, Token configurationToken)PowerShell
Peek Problem (⌥F8)

[PleaseStopAsking]

@thecherrytree I am actually not even getting to the point of executing them when I get the error. I am seeing the error when simply viewing my .ps1 files within VSCode. I don't currently execute them on MacOS, just develop them there and then execute on Windows boxes elsewhere.

[MikeCantCode]

Here's output when running a good ol fashioned 'Get-DscResource'.

MacOS Catalina (10.15.6) running PowerShell 7.0.3

PS> $PSVersionTable

Name                           Value
----                           -----
PSVersion                      7.0.3
PSEdition                      Core
GitCommitId                    7.0.3
OS                             Darwin 19.6.0 Darwin Kernel Version 19.6.0: Sun Jul  5 00:43:10 PDT 2020; root:xnu-6153.141.1~9/RELEASE_X86_64
Platform                       Unix
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0…}
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1
WSManStackVersion              3.0

PS> Get-DscResource

PSMessageDetails      :
Exception             : System.Management.Automation.MethodInvocationException: Exception calling "ImportCimKeywordsFromModule" with "5" argument(s): "Unable to load shared
                        library 'libmi' or one of its dependencies. In order to help diagnose loading problems, consider setting the DYLD_PRINT_LIBRARIES environment variable:
                        dlopen(liblibmi, 1): image not found"
                         ---> System.DllNotFoundException: Unable to load shared library 'libmi' or one of its dependencies. In order to help diagnose loading problems,
                        consider setting the DYLD_PRINT_LIBRARIES environment variable: dlopen(liblibmi, 1): image not found
                           at Microsoft.Management.Infrastructure.Native.NativeMethods.MI_Application_InitializeV1(UInt32 flags, String applicationID, IndirectPtr
                        extendedError, DirectPtr application)
                           at Microsoft.Management.Infrastructure.Native.MI_Application.Initialize(String applicationId, MI_Instance& extendedError, MI_Application& application)
                           at Microsoft.Management.Infrastructure.Internal.CimApplication.GetApplicationHandle()
                           at System.Lazy`1.ViaFactory(LazyThreadSafetyMode mode)
                        --- End of stack trace from previous location where exception was thrown ---
                           at System.Lazy`1.CreateValue()
                           at Microsoft.Management.Infrastructure.Internal.CimApplication.get_Handle()
                           at Microsoft.Management.Infrastructure.Serialization.CimMofDeserializer..ctor()
                           at Microsoft.Management.Infrastructure.Serialization.CimMofDeserializer.Create()
                           at Microsoft.PowerShell.DesiredStateConfiguration.CimDSCParser..ctor(OnClassNeeded onClassNeeded)
                           at Microsoft.PowerShell.DesiredStateConfiguration.Internal.DscClassCache.ImportClasses(String path, Tuple`2 moduleInfo, Collection`1 errors, Boolean
                        importInBoxResourcesImplicitly)
                           at Microsoft.PowerShell.DesiredStateConfiguration.Internal.DscClassCache.ImportCimKeywordsFromModule(PSModuleInfo module, String resourceName,
                        String& schemaFilePath, Dictionary`2 functionsToDefine, Collection`1 errors)
                           at CallSite.Target(Closure , CallSite , Type , Object , Object , PSReference , Object , Object )
                           --- End of inner exception stack trace ---
                           at System.Management.Automation.ExceptionHandlingOps.ConvertToMethodInvocationException(Exception exception, Type typeToThrow, String methodName,
                        Int32 numArgs, MemberInfo memberInfo)
                           at CallSite.Target(Closure , CallSite , Type , Object , Object , PSReference , Object , Object )
                           at ImportCimAndScriptKeywordsFromModule(Closure , FunctionContext )
TargetObject          :
CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
FullyQualifiedErrorId : DllNotFoundException
ErrorDetails          :
InvocationInfo        : System.Management.Automation.InvocationInfo
ScriptStackTrace      : at ImportCimAndScriptKeywordsFromModule, /usr/local/microsoft/powershell/7/Modules/PSDesiredStateConfiguration/PSDesiredStateConfiguration.psm1: line
                        2527
                        at Get-DscResource<Begin>, /usr/local/microsoft/powershell/7/Modules/PSDesiredStateConfiguration/PSDesiredStateConfiguration.psm1: line 3980
                        at <ScriptBlock>, <No file>: line 1
PipelineIterationInfo : {}

It would be great to be able to develop DSC Configurations for Windows on a Mac.