CustomDimensions 未显示在 Azure Functions 隔离的 ApplicationInsights 跟踪中

Question

我正在尝试将 customDimension 添加到我的 Azure 函数日志中，但它们似乎没有通过，我不知道为什么。我尝试过使用 BeginScope 并使用单独的日志发送参数，但似乎都不起作用。

 public static void LogCustomTrace(this ILogger logger,
            string method,
            string message,
            TraceType traceType,
            LogLevel logLevel = LogLevel.Information,
            Exception? exception = null,
            params object[] args)
        {
            var customProperties = new Dictionary<string, object>
            {
                ["TraceType"] = traceType.ToString()
            };

            using (logger.BeginScope(customProperties))
            {
                if (exception != null)
                {
                    logger.Log(logLevel, exception, $"[{method}]: {message}", args);
                }
                else
                {
                    logger.Log(logLevel, $"[{method}]: {message}", args);
                }
            }
        }

和

public static void LogCustomTrace(this ILogger logger,
            string method,
            string message,
            TraceType traceType,
            LogLevel logLevel = LogLevel.Information,
            Exception? exception = null,
            params object[] args)
        {
            var customProperties = new Dictionary<string, object>
            {
                ["TraceType"] = traceType.ToString()
            };

            if (exception != null)
            {
                logger.Log(logLevel, exception, $"[{method}]: {message}", customProperties);
            }
            else
            {
                logger.Log(logLevel, $"[{method}]: {message}", customProperties);
            }
        }

我发现一些线程，人们设法添加 customDimensions 但对于同一请求的所有日志 - 我只想为单个日志执行此操作，每个日志将具有不同的类型，以便可以轻松过滤它们。

功能应用程序设置如下：

 .ConfigureServices((hostContext, services) =>
 {
     services.AddApplicationInsightsTelemetryWorkerService();
     services.ConfigureFunctionsApplicationInsights();

我正在使用最新的

Microsoft.ApplicationInsights.WorkerService

和

Microsoft.Azure.Functions.Worker.ApplicationInsights

包。

Answer 1

我尝试了以下 Http 触发器函数隔离模型，以使用 Application Insights 获取 Azure Function 应用程序的

Custom Dimensions

。

Helpers/LoggerExtensions.cs：

using FunctionApp24.Functions;
using Microsoft.ApplicationInsights;
using Microsoft.ApplicationInsights.DataContracts;
using Microsoft.Extensions.Logging;
using System;

namespace FunctionApp24.Helpers
{
    public static class LoggerExtensions
    {
        public static void LogCustomTrace(this TelemetryClient telemetryClient,
                                          string method,
                                          string message,
                                          TraceType traceType,
                                          LogLevel logLevel = LogLevel.Information,
                                          Exception? exception = null)
        {
            var traceTelemetry = new TraceTelemetry
            {
                Message = $"[{method}]: {message}",
                SeverityLevel = logLevel.ToSeverityLevel()
            };
            traceTelemetry.Properties["TraceType"] = traceType.ToString();
            if (exception != null)
            {
                traceTelemetry.Properties["ExceptionType"] = exception.GetType().Name;
                traceTelemetry.Properties["ExceptionMessage"] = exception.Message;
            }

            telemetryClient.TrackTrace(traceTelemetry);
        }

        public static SeverityLevel ToSeverityLevel(this LogLevel logLevel)
        {
            return logLevel switch
            {
                LogLevel.Trace => SeverityLevel.Verbose,
                LogLevel.Debug => SeverityLevel.Verbose,
                LogLevel.Information => SeverityLevel.Information,
                LogLevel.Warning => SeverityLevel.Warning,
                LogLevel.Error => SeverityLevel.Error,
                LogLevel.Critical => SeverityLevel.Critical,
                _ => SeverityLevel.Information
            };
        }
    }
}

函数/MyFunction.cs：

using Microsoft.Azure.Functions.Worker;
using Microsoft.Azure.Functions.Worker.Http;
using Microsoft.Extensions.Logging;
using Microsoft.ApplicationInsights;
using System.Net;
using FunctionApp24.Helpers;

namespace FunctionApp24.Functions
{
    public class MyFunction
    {
        private readonly ILogger<MyFunction> _logger;
        private readonly TelemetryClient _telemetryClient;

        public MyFunction(ILogger<MyFunction> logger, TelemetryClient telemetryClient)
        {
            _logger = logger;
            _telemetryClient = telemetryClient;
        }

        [Function("MyFunction")]
        public async Task<HttpResponseData> Run([HttpTrigger(AuthorizationLevel.Function, "get", "post")] HttpRequestData req)
        {
            _logger.LogInformation("Function MyFunction triggered");
            _telemetryClient.LogCustomTrace("MyFunction", "Processing request", TraceType.Request);
            var response = req.CreateResponse(HttpStatusCode.OK);
            await response.WriteStringAsync("Function executed successfully.");
            return response;
        }
    }
    public enum TraceType
    {
        Request,
        Response,
        Error
    }
}

appsettings.json：

{
    "IsEncrypted": false,
  "Values": {
    "AzureWebJobsStorage": "<storageconnec>",
    "FUNCTIONS_WORKER_RUNTIME": "dotnet-isolated",
    "APPLICATIONINSIGHTS_CONNECTION_STRING": "<connecstring>"
  }
}

将上述项目发布到 Azure Function App 并在 Azure 门户中运行它，如下所示。

查询：

在 Azure 应用程序 Inisghts > Logs 中运行以下查询以获取函数应用程序的

Cunstome Dimensions

。

traces
| where customDimensions.TraceType == "Request"
| project timestamp, message, customDimensions
| order by timestamp desc

自定义尺寸输出：