HTTP拉取服务器返回PowerShell 503服务不可用

Question

我正在使用PowerShell 5.0 9月预览版在VMware工作站上运行的Windows Server2012 R2虚拟机上配置PowerShell Desired State Configuration Pull服务器。要执行DSC的配置，我将使用从Microsoft博客中获取的代码片段，该代码片段利用了xPSDesiredStateConfiguration模块的xDscWebService DSC资源。

当我尝试测试DSC Pull Server的OData端点时，收到一条HTTP503: Service Unavailable消息。对如何调试和修复这个问题有什么想法吗？

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configuration DscWebService 
{ 
    param 
    ( 
        [ValidateNotNullOrEmpty()] 
        [string] $CertificateThumbPrint = 'AllowUnencryptedTraffic'
    ) 

    Import-DSCResource -ModuleName xPSDesiredStateConfiguration;

    WindowsFeature DSCServiceFeature 
    { 
        Ensure = 'Present';
        Name   = 'DSC-Service';
    } 

    WindowsFeature WinAuth 
    { 
        Ensure = 'Present';
        Name   = 'web-Windows-Auth';    
    } 

    xDscWebService PSDSCPullServer 
    { 
        Ensure                  = 'Present';
        EndpointName            = 'PullSvc'; 
        Port                    = 10100;
        PhysicalPath            = "$env:SystemDrive\inetpub\wwwroot\PSDSCPullServer";
        CertificateThumbPrint   = $CertificateThumbPrint;
        ModulePath              = "$env:PROGRAMFILES\WindowsPowerShell\DscService\Modules";
        ConfigurationPath       = "$env:PROGRAMFILES\WindowsPowerShell\DscService\Configuration";
        State                   = 'Started';
        DependsOn               = '[WindowsFeature]DSCServiceFeature';
    } 

    xDscWebService PSDSCConformanceService
    {   
        Ensure                  = 'Present';
        EndpointName            = 'DscConformance';
        Port                    = 10101;
        PhysicalPath            = "$env:SystemDrive\inetpub\wwwroot\PSDSCComplianceServer";
        CertificateThumbPrint   = 'AllowUnencryptedTraffic';
        State                   = 'Started';
        IsComplianceServer      = $true;
        DependsOn               = @('[WindowsFeature]DSCServiceFeature', '[WindowsFeature]WinAuth','[xDSCWebService]PSDSCPullServer') ;
    } 
}  

DscWebService  -ComputerName dsc01.t.loc -OutputPath c:\dsc\PullServer -CertificateThumbPrint 00A2F55847C5523FE6CB0C2EE132C638339EA3A8;
Start-DscConfiguration -Wait -Verbose -Path c:\dsc\PullServer -Force;

Answer 1

503错误通常表示与站点关联的应用程序池存在问题。运行以下命令查看应用程序池的状态

    Get-ChildItem IIS:\AppPools