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runtimeconfig.jsonが無効なため、ANCM InProcessの起動に失敗しました

アプリケーションは、Azureで（32ビット、.NET Core 2.2）App Serviceとしてデプロイされます。 AspNetCoreModuleホスティングモデルをサポートする新しいAspNetCoreModuleV2ではなく、標準のInProcessを使用すると、正常に機能します。

新しいInProcess hostingmodelを使用すると、実際のエラーは

インプロセス要求ハンドラが見つかりませんでした。 hostfxrの呼び出しからキャプチャされた出力：無効なruntimeconfig.json [D：\ home\site\wwwroot\Foo.Api.runtimeconfig.json] [D：\ home\site\wwwroot\Foo.Api.runtimeconfig.dev.json]

wwwrootの場所にあるFoo.Api.runtimeconfig.json

{
  "runtimeOptions": {
    "tfm": "netcoreapp2.2",
    "framework": {
      "name": "Microsoft.AspNetCore.App",
      "version": "2.2.0"
    },
    "configProperties": {
      "System.GC.Server": true
    }
  }
}

Web.config

<configuration>
  <location path="." inheritInChildApplications="false">
    <system.webServer>
      <handlers>
        <add name="aspNetCore" path="*" verb="*" modules="AspNetCoreModuleV2" resourceType="Unspecified" />
      </handlers>
      <aspNetCore processPath="dotnet" arguments=".\Foo.Api.dll" stdoutLogEnabled="true" stdoutLogFile=".\logs\stdout" hostingModel="InProcess">
           <handlerSettings>
               <handlerSetting name="debugLevel" value="file" />
               <handlerSetting name="debugFile" value=".\logs\ancm.log" />
           </handlerSettings>
      </aspNetCore>
    </system.webServer>
  </location>
</configuration>

ANCMログファイル

[aspnetcorev2.dll] Initializing logs for 'D:\Program Files (x86)\IIS\Asp.Net Core Module\V2\aspnetcorev2.dll'. Process Id: 12324.. File Version: 12.2.18296.0. Description: IIS ASP.NET Core Module V2. Commit: 61f1a70784dc0a32cf98f8ddd169c0293b0390ab.
[aspnetcorev2.dll] Detected app_offline file, creating polling application
[aspnetcorev2.dll] Application went offline
[aspnetcorev2.dll] Resolving hostfxr parameters for application: 'dotnet' arguments: '.\Foo.Api.dll' path: 'D:\home\site\wwwroot\'
[aspnetcorev2.dll] Known dotnet.exe location: ''
[aspnetcorev2.dll] Process path 'dotnet.exe' is dotnet, treating application as portable
[aspnetcorev2.dll] Resolving absolute path to dotnet.exe from 'dotnet.exe'
[aspnetcorev2.dll] Invoking where.exe to find dotnet.exe
[aspnetcorev2.dll] where.exe invocation returned: 'D:\Program Files (x86)\dotnet\dotnet.exe
D:\Program Files\dotnet\dotnet.exe
'
[aspnetcorev2.dll] Current process bitness type detected as isX64=0
[aspnetcorev2.dll] Processing entry 'D:\Program Files (x86)\dotnet\dotnet.exe'
[aspnetcorev2.dll] Binary type 0
[aspnetcorev2.dll] Found dotnet.exe via where.exe invocation at 'D:\Program Files (x86)\dotnet\dotnet.exe'
[aspnetcorev2.dll] Resolving absolute path to hostfxr.dll from 'D:\Program Files (x86)\dotnet\dotnet.exe'
[aspnetcorev2.dll] hostfxr.dll located at 'D:\Program Files (x86)\dotnet\Host\fxr\2.2.0\hostfxr.dll'
[aspnetcorev2.dll] Converted argument '.\Foo.Api.dll' to 'D:\home\site\wwwroot\.\Foo.Api.dll'
[aspnetcorev2.dll] Parsed hostfxr options: dotnet location: 'D:\Program Files (x86)\dotnet\dotnet.exe' hostfxr path: 'D:\Program Files (x86)\dotnet\Host\fxr\2.2.0\hostfxr.dll' arguments:
[aspnetcorev2.dll] Argument[0] = 'D:\Program Files (x86)\dotnet\dotnet.exe'
[aspnetcorev2.dll] Argument[1] = 'D:\home\site\wwwroot\.\Foo.Api.dll'
[aspnetcorev2.dll] Event Log: 'Invoking hostfxr to find the inprocess request handler failed without finding any native dependencies. This most likely means the app is misconfigured, please check the versions of Microsoft.NetCore.App and Microsoft.AspNetCore.App that are targeted by the application and are installed on the machine.' 
End Event Log Message.
[aspnetcorev2.dll] Failed HRESULT returned: 0x8000ffff at c:\b\w\e37dd45d8cd1eaf4\modules\iisintegration\src\aspnetcoremodulev2\aspnetcore\handlerresolver.cpp:80 
[aspnetcorev2.dll] Event Log: 'Could not find inprocess request handler. Captured output from invoking hostfxr: Invalid runtimeconfig.json [D:\home\site\wwwroot\Foo.Api.runtimeconfig.json] [D:\home\site\wwwroot\Foo.Api.runtimeconfig.dev.json]
' 
End Event Log Message.
[aspnetcorev2.dll] Failed HRESULT returned: 0x8000ffff at c:\b\w\e37dd45d8cd1eaf4\modules\iisintegration\src\aspnetcoremodulev2\aspnetcore\handlerresolver.cpp:153 
[aspnetcorev2.dll] Failed HRESULT returned: 0x8000ffff at c:\b\w\e37dd45d8cd1eaf4\modules\iisintegration\src\aspnetcoremodulev2\aspnetcore\applicationinfo.cpp:136 
[aspnetcorev2.dll] Failed HRESULT returned: 0x8000ffff at c:\b\w\e37dd45d8cd1eaf4\modules\iisintegration\src\aspnetcoremodulev2\aspnetcore\applicationinfo.cpp:91 
[aspnetcorev2.dll] Event Log: 'Failed to start application '/LM/W3SVC/1455123678/ROOT', ErrorCode '0x8000ffff'.' 
End Event Log Message.
[aspnetcorev2.dll] ASPNET_CORE_GLOBAL_MODULE::OnGlobalStopListening
[aspnetcorev2.dll] Stopping application '/LM/W3SVC/1455123678/ROOT'
[aspnetcorev2.dll] ASPNET_CORE_GLOBAL_MODULE::Terminate

kuduを使用したサーバーの詳細

dotnet --info
.NET Core SDK (reflecting any global.json):
 Version:   2.2.100
 Commit:    51868761f2

Runtime Environment:
 OS Name:     Windows
 OS Version:  10.0.14393
 OS Platform: Windows
 RID:         win10-x86
 Base Path:   D:\Program Files (x86)\dotnet\sdk\2.2.100\

Host (useful for support):
  Version: 2.2.0
  Commit:  1249f08fed

.NET Core SDKs installed:
  1.1.10 [D:\Program Files (x86)\dotnet\sdk]
  2.1.402 [D:\Program Files (x86)\dotnet\sdk]
  2.1.500 [D:\Program Files (x86)\dotnet\sdk]
  2.2.100 [D:\Program Files (x86)\dotnet\sdk]

.NET Core runtimes installed:
  Microsoft.AspNetCore.All 2.1.4 [D:\Program Files (x86)\dotnet\shared\Microsoft.AspNetCore.All]
  Microsoft.AspNetCore.All 2.1.6 [D:\Program Files (x86)\dotnet\shared\Microsoft.AspNetCore.All]
  Microsoft.AspNetCore.All 2.2.0 [D:\Program Files (x86)\dotnet\shared\Microsoft.AspNetCore.All]
  Microsoft.AspNetCore.App 2.1.4 [D:\Program Files (x86)\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 2.1.6 [D:\Program Files (x86)\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 2.2.0 [D:\Program Files (x86)\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.NETCore.App 1.0.12 [D:\Program Files (x86)\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 1.1.9 [D:\Program Files (x86)\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 2.0.9 [D:\Program Files (x86)\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 2.1.4 [D:\Program Files (x86)\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 2.1.6 [D:\Program Files (x86)\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 2.2.0 [D:\Program Files (x86)\dotnet\shared\Microsoft.NETCore.App]

Program.cs

using System;
using System.Diagnostics.CodeAnalysis;
using System.IO;
using Foo.Dal;
using Microsoft.AspNetCore;
using Microsoft.AspNetCore.Hosting;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Serilog;

namespace Foo.Api
{
    [ExcludeFromCodeCoverage]
    public class Program
    {
        public static IConfiguration Configuration { get; } = new ConfigurationBuilder()
            .SetBasePath(Directory.GetCurrentDirectory())
            .AddJsonFile("appsettings.json", optional: false, reloadOnChange: true)
            .AddEnvironmentVariables()
            .Build();

        public static int Main(string[] args)
        {
            Log.Logger = new LoggerConfiguration()
                .Enrich.FromLogContext()
                .ReadFrom.Configuration(Configuration)
                .WriteTo.Console()
                .CreateLogger();

            try
            {
                Log.Information("Starting web Host");
                CreateWebHostBuilder(args).Build().Migrate().Run();
                return 0;
            }
            catch (Exception ex)
            {
                Log.Fatal(ex, "Host terminated unexpectedly");
                return 1;
            }
            finally
            {
                Log.CloseAndFlush();
            }
        }

        public static IWebHostBuilder CreateWebHostBuilder(string[] args) =>
            WebHost.CreateDefaultBuilder(args)
                .UseStartup<Startup>()
                .UseConfiguration(Configuration)
                .UseSerilog();


    }

    public static class MigrationExtentions
    {
        public static IWebHost Migrate(this IWebHost webhost)
        {
            using (var scope = webhost.Services.GetService<IServiceScopeFactory>().CreateScope())
            {
                using (var dbContext = scope.ServiceProvider.GetRequiredService<MyContext>())
                {
                    dbContext.Database.Migrate();
                }
            }
            return webhost;
        }
    }
}

csproj抜粋

<PropertyGroup>
    <TargetFramework>netcoreapp2.2</TargetFramework>
    <RuntimeFrameworkVersion>2.2.0</RuntimeFrameworkVersion>
    <UserSecretsId>717ec1cf-5ff6-4176-b96b-ee427f40bee5</UserSecretsId>
    <AssemblyName>Bar.Foo.Api</AssemblyName>
    <AspNetCoreHostingModel>InProcess</AspNetCoreHostingModel>
</PropertyGroup>
c#asp.net-coreasp.net-core-2.2
9
emp

ASP.NET Core 2.2のInProcessホスティングモデルでDirectory.GetCurrentDirectory()が機能しません。これは私が Github で報告したバグです。

別の解決策は、CurrentDirectoryHelpersというヘルパークラスを次のように記述することです。

_internal class CurrentDirectoryHelpers
{
    internal const string AspNetCoreModuleDll = "aspnetcorev2_inprocess.dll";

    [System.Runtime.InteropServices.DllImport("kernel32.dll")]
    private static extern IntPtr GetModuleHandle(string lpModuleName);

    [System.Runtime.InteropServices.DllImport(AspNetCoreModuleDll)]
    private static extern int http_get_application_properties(ref IISConfigurationData iiConfigData);

    [System.Runtime.InteropServices.StructLayout(System.Runtime.InteropServices.LayoutKind.Sequential)]
    private struct IISConfigurationData
    {
        public IntPtr pNativeApplication;
        [System.Runtime.InteropServices.MarshalAs(System.Runtime.InteropServices.UnmanagedType.BStr)]
        public string pwzFullApplicationPath;
        [System.Runtime.InteropServices.MarshalAs(System.Runtime.InteropServices.UnmanagedType.BStr)]
        public string pwzVirtualApplicationPath;
        public bool fWindowsAuthEnabled;
        public bool fBasicAuthEnabled;
        public bool fAnonymousAuthEnable;
    }

    public static void SetCurrentDirectory()
    {
        try
        {
            // Check if physical path was provided by ANCM
            var sitePhysicalPath = Environment.GetEnvironmentVariable("ASPNETCORE_IIS_PHYSICAL_PATH");
            if (string.IsNullOrEmpty(sitePhysicalPath))
            {
                // Skip if not running ANCM InProcess
                if (GetModuleHandle(AspNetCoreModuleDll) == IntPtr.Zero)
                {
                    return;
                }

                IISConfigurationData configurationData = default(IISConfigurationData);
                if (http_get_application_properties(ref configurationData) != 0)
                {
                    return;
                }

                sitePhysicalPath = configurationData.pwzFullApplicationPath;
            }

            Environment.CurrentDirectory = sitePhysicalPath;
        }
        catch
        {
            // ignore
        }
    }
}
_

次に、CurrentDirectoryHelpersクラスのSetCurrentDirectory()を次のように呼び出します。

_public class Program
{
    public static void Main(string[] args)
    {
        CurrentDirectoryHelpers.SetCurrentDirectory();

        Log.Logger = new LoggerConfiguration()
                .Enrich.FromLogContext()
                .ReadFrom.Configuration(Configuration)
                .WriteTo.Console()
                .CreateLogger();

        ...
    }
}
_

これですべてがうまくいくはずです！

8
TanvirArjel