我正在尝试在Azure中托管.NET 5 ASP.NET Core Web API。不幸的是，应用程序没有启动，因为“诊断问题”也看到了。看起来它陷入了启动循环，因为我在日志流中一遍又一遍地得到相同的消息：

2020-11-13T11:25:43 Start 'Microsoft.AspNetCore.AzureAppServices.SiteExtension' site extension transform
2020-11-13T11:25:44 StartSection Executing InsertIfMissing (transform line 7, 23)
2020-11-13T11:25:44 on /configuration/system.webServer
2020-11-13T11:25:44 Applying to 'configuration' element (no source line info)
2020-11-13T11:25:44 EndSection Done executing InsertIfMissing
2020-11-13T11:25:44 StartSection Executing InsertIfMissing (transform line 8, 16)
2020-11-13T11:25:44 on /configuration/system.webServer/runtime
2020-11-13T11:25:44 Applying to 'system.webServer' element (no source line info)
2020-11-13T11:25:44 EndSection Done executing InsertIfMissing
2020-11-13T11:25:44 StartSection Executing InsertIfMissing (transform line 9, 31)
2020-11-13T11:25:44 on /configuration/system.webServer/runtime/environmentVariables
2020-11-13T11:25:44 Applying to 'runtime' element (no source line info)
2020-11-13T11:25:44 EndSection Done executing InsertIfMissing
2020-11-13T11:25:44 StartSection Executing InsertOrAppendAttribute (transform line 10, 406)
2020-11-13T11:25:44 on /configuration/system.webServer/runtime/environmentVariables/add[@name='DOTNET_ADDITIONAL_DEPS']
2020-11-13T11:25:44 Applying to 'environmentVariables' element (no source line info)
2020-11-13T11:25:44 EndSection Done executing InsertOrAppendAttribute
2020-11-13T11:25:44 StartSection Executing InsertOrAppendAttribute (transform line 11, 158)
2020-11-13T11:25:44 on /configuration/system.webServer/runtime/environmentVariables/add[@name='DOTNET_SHARED_STORE']
2020-11-13T11:25:44 Applying to 'environmentVariables' element (no source line info)
2020-11-13T11:25:44 EndSection Done executing InsertOrAppendAttribute
2020-11-13T11:25:44 StartSection Executing InsertOrAppendAttribute (transform line 12, 146)
2020-11-13T11:25:44 on /configuration/system.webServer/runtime/environmentVariables/add[@name='ASPNETCORE_HOSTINGSTARTUPASSEMBLIES']
2020-11-13T11:25:44 Applying to 'environmentVariables' element (no source line info)
2020-11-13T11:25:44 EndSection Done executing InsertOrAppendAttribute
2020-11-13T11:25:44 Successful 'C:\home\SiteExtensions\Microsoft.AspNetCore.AzureAppServices.SiteExtension\applicationHost.xdt' site extension transform
2020-11-13T11:25:44 sandboxproc.exe complete successfully. Elapsed = 1208.00 ms
2020-11-13T11:25:56 sandboxproc.exe D:\DWASFiles\Sites\fotoapp-api\Temp\applicationhost.config True True
2020-11-13T11:25:57 env XPROC_TYPENAME=Microsoft.Web.Hosting.Transformers.ApplicationHost.SiteExtensionHelper, Microsoft.Web.Hosting, Version=7.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
2020-11-13T11:25:57 env XPROC_METHODNAME=Transform
<these messages repeat endlessly>

我尝试了依赖于框架的部署（在应用服务中启用了.NET 5运行时）和自包含部署。
我在任何地方都找不到更好的日志。尚不支持Application Insights。
对API的请求无法到达日志流。大约2分钟后，服务器响应“HTTP错误503。服务不可用”。