如何使用 .NET Azure 容器应用程序获取通过 Application Insights 记录的 cloudRoleName 和 cloudRoleInstance？

Question

在 Azure 容器应用上托管 ASP.NET Core 应用程序时，Application Insights 目前未记录 cloudRoleName 和 cloudRoleInstance（或留空）。

Answer 1

初始化时添加自定义初始化程序，例如：

using Microsoft.ApplicationInsights.Extensibility;
using Microsoft.AspNetCore.Mvc;
using Models;
using Utils;

var builder = WebApplication.CreateBuilder(args);
builder.Services.AddApplicationInsightsTelemetry();
builder.Services.Configure<TelemetryConfiguration>((o) =>
{
    o.TelemetryInitializers.Add(new AppInsightsTelemetryInitializer());
});

然后用

初始化

using Microsoft.ApplicationInsights.Channel;
using Microsoft.ApplicationInsights.Extensibility;

namespace Utils
{

    public class AppInsightsTelemetryInitializer : ITelemetryInitializer
    {
        public void Initialize(ITelemetry telemetry)
        {
            if (string.IsNullOrEmpty(telemetry.Context.Cloud.RoleName))
            {
                telemetry.Context.Cloud.RoleName = System.Environment.GetEnvironmentVariable("CONTAINER_APP_NAME") ?? "CONTAINER_APP_NAME-not-set";
            }
            if (string.IsNullOrEmpty(telemetry.Context.Cloud.RoleInstance))
            {
                telemetry.Context.Cloud.RoleInstance = System.Environment.GetEnvironmentVariable("HOSTNAME") ?? "HOSTNAME-not-set";
            }
        }
    }

}