【发布时间】：2021-01-05 10:06:05
【问题描述】：
我有在 Kubernetes 中运行的 dotnetcore 服务。对于日志记录，我使用了 log4net。我正在尝试将服务日志发送到 application-insights，但那里没有显示日志。
我在我的服务中添加了以下配置以获取应用洞察。
运行时版本： netcoreapp3.1 version-2.31.0.1
托管环境： Azure-cluster
app-service.csproj
<ItemGroup>
<PackageReference Include="Microsoft.ApplicationInsights.AspNetCore" Version="2.16.0" />
<PackageReference Include="Microsoft.ApplicationInsights.Log4NetAppender" Version="2.16.0" />
...
<ItemGroup>
log4net.config
...
<appender name="aiAppender" type="Microsoft.ApplicationInsights.Log4NetAppender.ApplicationInsightsAppender, Microsoft.ApplicationInsights.Log4NetAppender">
<InstrumentationKey name="AppInsightsKey" value="abcdefgh-abcd-abcd-abcd-abcdefghijkl" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%message%newline"/>
</layout>
</appender>
startup.cs
public Startup(IConfiguration configuration)
{
Configuration = configuration;
Logger.ConfigureLog4Net("./logs/app.log", Configuration)
...
}
public void ConfigureServices(IServiceCollection services)
{
// The following line enables Application Insights telemetry collection.
services.AddApplicationInsightsTelemetry();
services.AddSingleton<ITelemetryInitializer, CloudRoleNameTelemetryInitializer>();
// This code adds other services for the application.
services.AddMvc();
...
}
CloudRoleNameTelemetryInitializer.cs
using System.Net;
using Microsoft.ApplicationInsights;
using Microsoft.ApplicationInsights.Channel;
using Microsoft.ApplicationInsights.Extensibility;
public class CloudRoleNameTelemetryInitializer : ITelemetryInitializer
{
public void Initialize(ITelemetry telemetry)
{
// set custom role name here
telemetry.Context.Cloud.RoleName = "app-service";
}
}
我还为服务添加了 APPINSIGHTS_INSTRUMENTATIONKEY 环境变量。我可以看到服务请求信息，但看不到日志。 application-insights 的日志部分仅显示 2 个日志，但不是来自应用程序（log4net）。
No XML encryptor configured. Key {XXX-XXX-XXX-XXX-XXX} may be persisted to storage in unencrypted form.
Storing keys in a directory '/root/.aspnet/DataProtection-Keys' that may not be persisted outside of the container. Protected data will be unavailable when the container is destroyed.
以下是我探索过的一些链接。
https://docs.microsoft.com/en-us/azure/azure-monitor/app/asp-net-trace-logs
https://blog.ehn.nu/2014/11/using-log4net-for-application-insights/
https://jan-v.nl/post/using-application-insights-in-your-log4net-application/
但是，日志并没有添加到应用程序洞察中。我在这里有什么遗漏吗？是否可以将 Console.WriteLine 日志添加到 application-insights，就像在 nodejs 应用程序中一样，我们可以通过启用 application-insights 模块的配置来发送它？你能帮帮我吗？
谢谢...
【问题讨论】：
标签： docker logging .net-core log4net azure-application-insights