Not able to send log4net logs to application insights

I have dotnetcore service which is running in Kubernetes. For logging, I have used the log4net. I am trying to send the logs of service to application-insights but the logs are not showing there.

I have added the below configuration in my service for application insights.

Runtime version: netcoreapp3.1 version-2.31.0.1

Hosting environment: 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";      }  }  

I have also added the APPINSIGHTS_INSTRUMENTATIONKEY environment variable for service. I am able to see the request information for service but not logs. Only 2 logs are showing in the log section of application-insights but it is not from the application(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.  

Below are some links I have explored.

https://docs.microsoft.com/en-us/azure/azure-monitor/app/asp-net-trace-logs

https://medium.com/@muralimohan.mothupally/application-insights-integration-with-log4net-e1bef68fe3c8

https://blog.ehn.nu/2014/11/using-log4net-for-application-insights/

https://jan-v.nl/post/using-application-insights-in-your-log4net-application/

But still, logs are not adding in the application insights. Is there anything I am missing here? Also is it possible to add Console.WriteLine logs to application-insights as like in nodejs app we can send it by enabling the application-insights module's configuration? Can you please help me?

Thanks...

https://stackoverflow.com/questions/65563523/not-able-to-send-log4net-logs-to-application-insights January 04, 2021 at 09:31PM