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c# - .NET Core Healthchecks UI 未显示

问题描述

我正在使用 .NET Core 3.1 并尝试设置运行状况检查并遇到一个奇怪的问题，需要一些帮助。

当我转到基本健康检查 URL (https://localhost:5001/hc) 时，我得到以下信息：

{
  "status": "Healthy",
  "errors": [
    {
      "key": "AssessmentContext",
      "value": "Healthy"
    }
  ]
}

哪个看起来不错！但是，当我尝试转到 UI 时，它说应用程序不健康。

界面错误

所以它正确地提取了端点名称，但没有正确注册它。

我的 startup.cs 文件如下所示：

public void ConfigureServices(IServiceCollection services) {
    ...

    services
        .AddHealthChecks()
        .AddDbContextCheck<AssessmentContext>();

    services.AddHealthChecksUI(opt => {
        opt.SetEvaluationTimeInSeconds(30);
        opt.MaximumHistoryEntriesPerEndpoint(60);

        opt.AddHealthCheckEndpoint(name: "app", uri: "~/hc");
    }).AddInMemoryStorage();

}

public void Configure(IApplicationBuilder app, IWebHostEnvironment env) {
    ...

    app.UseEndpoints(endpoints =>
    {
        endpoints.MapHealthChecks("/hc", new HealthCheckOptions
        {
            Predicate = _ => true,
            ResponseWriter = UIResponseWriter.WriteHealthCheckUIResponse,
        });

        endpoints.MapHealthChecksUI(opt => {
            opt.UseRelativeApiPath = false;
            opt.UseRelativeResourcesPath = false;
            opt.AsideMenuOpened = false;

            opt.UIPath = "/health";
            opt.ApiPath = "/healthAPI";
        });


        ...
    });
}

并且 csproj 文件具有以下版本：

<PackageReference Include="AspNetCore.HealthChecks.UI" Version="3.1.1" />
<PackageReference Include="AspNetCore.HealthChecks.UI.Client" Version="3.1.1" />
<PackageReference Include="AspNetCore.HealthChecks.UI.InMemory.Storage" Version="3.1.1" />
<PackageReference Include="AspNetCore.HealthChecks.System" Version="3.1.2" />
<PackageReference Include="Microsoft.Extensions.Diagnostics.HealthChecks.EntityFrameworkCore" Version="3.1.8" />
<PackageReference Include="AspNetCore.HealthChecks.MySql" Version="3.1.1" />


HealthChecks.UI.Core.HostedService.HealthCheckReportCollector: Error: GetHealthReport threw an exception when trying to get report from ~/hc configured with name app.

System.Net.Http.HttpRequestException: The SSL connection could not be established, see inner exception.
 ---> System.Security.Authentication.AuthenticationException: The remote certificate is invalid according to the validation procedure.
   at System.Net.Security.SslStream.StartSendAuthResetSignal(ProtocolToken message, AsyncProtocolRequest asyncRequest, ExceptionDispatchInfo exception)
   at System.Net.Security.SslStream.CheckCompletionBeforeNextReceive(ProtocolToken message, AsyncProtocolRequest asyncRequest)
   at System.Net.Security.SslStream.StartSendBlob(Byte[] incoming, Int32 count, AsyncProtocolRequest asyncRequest)
   at System.Net.Security.SslStream.ProcessReceivedBlob(Byte[] buffer, Int32 count, AsyncProtocolRequest asyncRequest)
   at System.Net.Security.SslStream.StartReceiveBlob(Byte[] buffer, AsyncProtocolRequest asyncRequest)
   at System.Net.Security.SslStream.CheckCompletionBeforeNextReceive(ProtocolToken message, AsyncProtocolRequest asyncRequest)
   at System.Net.Security.SslStream.StartSendBlob(Byte[] incoming, Int32 count, AsyncProtocolRequest asyncRequest)
   at System.Net.Security.SslStream.ProcessReceivedBlob(Byte[] buffer, Int32 count, AsyncProtocolRequest asyncRequest)
   at System.Net.Security.SslStream.PartialFrameCallback(AsyncProtocolRequest asyncRequest)
--- End of stack trace from previous location where exception was thrown ---
   at System.Net.Security.SslStream.EndProcessAuthentication(IAsyncResult result)
   at System.Net.Security.SslStream.EndAuthenticateAsClient(IAsyncResult asyncResult)
   at System.Net.Security.SslStream.<>c.<AuthenticateAsClientAsync>b__65_1(IAsyncResult iar)
   at System.Threading.Tasks.TaskFactory`1.FromAsyncCoreLogic(IAsyncResult iar, Func`2 endFunction, Action`1 endAction, Task`1 promise, Boolean requiresSynchronization)
--- End of stack trace from previous location where exception was thrown ---
   at System.Net.Http.ConnectHelper.EstablishSslConnectionAsyncCore(Stream stream, SslClientAuthenticationOptions sslOptions, CancellationToken cancellationToken)
   --- End of inner exception stack trace ---
   at System.Net.Http.ConnectHelper.EstablishSslConnectionAsyncCore(Stream stream, SslClientAuthenticationOptions sslOptions, CancellationToken cancellationToken)
   at System.Net.Http.HttpConnectionPool.ConnectAsync(HttpRequestMessage request, Boolean allowHttp2, CancellationToken cancellationToken)
   at System.Net.Http.HttpConnectionPool.CreateHttp11ConnectionAsync(HttpRequestMessage request, CancellationToken cancellationToken)
   at System.Net.Http.HttpConnectionPool.GetHttpConnectionAsync(HttpRequestMessage request, CancellationToken cancellationToken)
   at System.Net.Http.HttpConnectionPool.SendWithRetryAsync(HttpRequestMessage request, Boolean doRequestAuth, CancellationToken cancellationToken)
   at System.Net.Http.RedirectHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
   at Microsoft.Extensions.Http.Logging.LoggingHttpMessageHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
   at Microsoft.Extensions.Http.Logging.LoggingScopeHttpMessageHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
   at System.Net.Http.HttpClient.FinishSendAsyncBuffered(Task`1 sendTask, HttpRequestMessage request, CancellationTokenSource cts, Boolean disposeCts)
   at HealthChecks.UI.Core.HostedService.HealthCheckReportCollector.GetHealthReport(HealthCheckConfiguration configuration)

标签： c#asp.net-corehealth-check

解决方案

我希望您已经找到了解决方案。但是由于这个问题仍然没有答案，而且这也是我面临的一个问题，我将发布我是如何解决它的，希望将来能帮助其他人。谢谢你。

public void ConfigureServices(IServiceCollection services)
{
    services.AddHealthChecks()
            .AddCheck("Products", new SqlServerHealthCheck(connectionString))
            .AddSqlServer(connectionString, name: "DataBase");
            
    services.AddHealthChecksUI(setup =>
    {
        setup.UseApiEndpointHttpMessageHandler(sp =>
        {
            return new HttpClientHandler
            {
                ClientCertificateOptions = ClientCertificateOption.Manual,
                ServerCertificateCustomValidationCallback = (httpRequestMessage, cert, cetChain, policyErrors) => { return true; }
            };
        });
    }).AddInMemoryStorage();
}        

public void Configure(IApplicationBuilder app, IWebHostEnvironment env, IApiVersionDescriptionProvider provider)
{
    app.UseEndpoints(endpoints =>
    {
        endpoints.MapControllers();
        endpoints.MapHealthChecks("/api/hc", new HealthCheckOptions
        {
            Predicate = _ => true,
            ResponseWriter = UIResponseWriter.WriteHealthCheckUIResponse
        });
        endpoints.MapHealthChecksUI();
        
    });
}

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