Cloud Role Name is missing after upgrading to latest stable version of Microsoft.ApplicationInsights.AspNetCore

Are there any news? When it is going to be fixed?

Not sure if it will help, but I had a similar issue which I “fixed” (patched in a most hacky way) by creating an overridden TraceTelemetryInitializer and using that when setting up my App Insights sink. I also couldn’t live without my custom cloud_roleName!

SerilogAppInsightsTraceTelemetryConverter.cs

using Microsoft.ApplicationInsights.Channel;
using Serilog.Events;
using Serilog.Sinks.ApplicationInsights.Sinks.ApplicationInsights.TelemetryConverters;
using System;
using System.Collections.Generic;
using System.Reflection;

namespace MyApp.Common.Logging.TelemetryConverters
{
    public class SerilogAppInsightsTraceTelemetryConverter : TraceTelemetryConverter
    {
        private string? _roleName;

        public SerilogAppInsightsTraceTelemetryConverter()
        {
            _roleName = Assembly.GetEntryAssembly()?.GetName()?.Name;  // Or whatever else you'd like to set the name to.
        }

        public override IEnumerable<ITelemetry> Convert(LogEvent logEvent, IFormatProvider formatProvider)
        {
            foreach(var telemetry in base.Convert(logEvent, formatProvider))
            {
                telemetry.Context.Cloud.RoleName = _roleName;
                yield return telemetry;
            }
        }
    }
}

Then use it during startup:

Host.CreateDefaultBuilder(args)
    .UseSerilog((context, services, serilogConfiguration) =>
        serilogConfiguration.WriteTo.ApplicationInsights(new TelemetryConfiguration(instrumentationKey), new SerilogAppInsightsTraceTelemetryConverter(), LogEventLevel.Information);
    )

@daniel-simpson Thanks. This workaround worked for me as well.