From e439183645c393e5ba330c54d9debc960b6f6da2 Mon Sep 17 00:00:00 2001
From: Polianin Nikita <nikitkapolyanin@yandex.ru>
Date: Tue, 5 Aug 2025 16:57:45 +0300
Subject: [PATCH] feat: add OpenTelemetry support for monitoring

---
 Endpoint/Endpoint.csproj |  5 +++++
 Endpoint/Program.cs      | 32 ++++++++++++++++++++++++++++++++
 2 files changed, 37 insertions(+)

diff --git a/Endpoint/Endpoint.csproj b/Endpoint/Endpoint.csproj
index f5bea67..89be01c 100644
--- a/Endpoint/Endpoint.csproj
+++ b/Endpoint/Endpoint.csproj
@@ -45,6 +45,11 @@
     <PackageReference Include="Microsoft.Win32.SystemEvents" Version="9.0.8" />
     <PackageReference Include="Mirea.Tools.Schedule.Parser" Version="1.2.7" />
     <PackageReference Include="Mirea.Tools.Schedule.WebParser" Version="1.0.7" />
+    <PackageReference Include="OpenTelemetry" Version="1.12.0" />
+    <PackageReference Include="OpenTelemetry.Exporter.OpenTelemetryProtocol" Version="1.12.0" />
+    <PackageReference Include="OpenTelemetry.Extensions.Hosting" Version="1.12.0" />
+    <PackageReference Include="OpenTelemetry.Instrumentation.AspNetCore" Version="1.12.0" />
+    <PackageReference Include="OpenTelemetry.Instrumentation.Runtime" Version="1.12.0" />
 		<PackageReference Include="QRCoder" Version="1.6.0" />
 		<PackageReference Include="Serilog" Version="4.3.0" />
 		<PackageReference Include="Serilog.AspNetCore" Version="9.0.0" />
diff --git a/Endpoint/Program.cs b/Endpoint/Program.cs
index 643e494..7edc3b9 100644
--- a/Endpoint/Program.cs
+++ b/Endpoint/Program.cs
@@ -20,7 +20,11 @@ using Mirea.Api.Endpoint.Configuration.Validation;
 using Mirea.Api.Endpoint.Configuration.Validation.Validators;
 using Mirea.Api.Security.Services;
 using OfficeOpenXml;
+using OpenTelemetry.Exporter;
+using OpenTelemetry.Metrics;
+using OpenTelemetry.Resources;
 using System;
+using System.Collections.Generic;
 using System.IO;
 
 namespace Mirea.Api.Endpoint;
@@ -118,6 +122,34 @@ public class Program
         builder.Services.AddDataProtection()
             .PersistKeysToFileSystem(new DirectoryInfo(PathBuilder.Combine("DataProtection")));
 
+        builder.Host.ConfigureServices((context, services) =>
+        {
+            var config = context.Configuration.Get<GeneralConfig>()?.LogSettings;
+
+            if (string.IsNullOrEmpty(config?.OpenTelemetryEndpoint)
+                || string.IsNullOrEmpty(config.OpenTelemetryServiceName))
+                return;
+
+            services.AddOpenTelemetry()
+                .WithMetrics(metrics =>
+                {
+                    metrics
+                        .AddAspNetCoreInstrumentation()
+                        .AddRuntimeInstrumentation()
+                        .SetResourceBuilder(ResourceBuilder.CreateDefault()
+                            .AddService(serviceName: config.OpenTelemetryServiceName)
+                            .AddAttributes([
+                                new KeyValuePair<string, object>("deployment.environment", context.HostingEnvironment.EnvironmentName),
+                                    new KeyValuePair<string, object>("host.name", Environment.MachineName)
+                            ]))
+                        .AddOtlpExporter(options =>
+                        {
+                            options.Endpoint = new Uri(config.OpenTelemetryEndpoint);
+                            options.Protocol = OtlpExportProtocol.Grpc;
+                        });
+                });
+        });
+
         var app = builder.Build();
 
         app.UseForwardedHeaders();