Event source configuration

NuGet.config

@@ -4,8 +4,6 @@
     <clear />
     <add key="NuGet" value="https://api.nuget.org/v3/index.json" />
     <add key="MyGet" value="https://www.myget.org/F/opentelemetry/api/v3/index.json" />
-    <add key="Dotnet-public" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-public/nuget/v3/index.json" />
-    <add key="Dotnet-tools" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-tools/nuget/v3/index.json" />
   </packageSources>
   <disabledPackageSources />
 </configuration>

examples/eventcounters/Examples.EventCounters.AspNetCore/Controllers/WeatherForecastController.cs

@@ -0,0 +1,49 @@
+// <copyright file="WeatherForecastController.cs" company="OpenTelemetry Authors">
+// Copyright The OpenTelemetry Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+// </copyright>
+
+using Microsoft.AspNetCore.Mvc;
+
+namespace Examples.EventCounter.AspNetCore.Controllers
+{
+    [ApiController]
+    [Route("[controller]")]
+    public class WeatherForecastController : ControllerBase
+    {
+        private static readonly string[] Summaries = new[]
+        {
+        "Freezing", "Bracing", "Chilly", "Cool", "Mild", "Warm", "Balmy", "Hot", "Sweltering", "Scorching",
+        };
+
+        private readonly ILogger<WeatherForecastController> logger;
+
+        public WeatherForecastController(ILogger<WeatherForecastController> logger)
+        {
+            this.logger = logger;
+        }
+
+        [HttpGet]
+        public IEnumerable<WeatherForecast> Get()
+        {
+            return Enumerable.Range(1, 5).Select(index => new WeatherForecast
+            {
+                Date = DateTime.Now.AddDays(index),
+                TemperatureC = Random.Shared.Next(-20, 55),
+                Summary = Summaries[Random.Shared.Next(Summaries.Length)],
+            })
+            .ToArray();
+        }
+    }
+}

examples/eventcounters/Examples.EventCounters.AspNetCore/Examples.EventCounters.AspNetCore.csproj

@@ -0,0 +1,20 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <LangVersion>latest</LangVersion>
+  </PropertyGroup>
+
+    <ItemGroup>
+        <PackageReference Include="OpenTelemetry.Exporter.Prometheus" Version="1.2.0-rc1" />
+        <PackageReference Include="OpenTelemetry.Extensions.Hosting" Version="1.0.0-rc8" />
+        <PackageReference Include="OpenTelemetry.Instrumentation.AspNetCore" Version="1.0.0-rc8" />
+    </ItemGroup>
+
+    <ItemGroup>
+      <ProjectReference Include="..\..\..\src\OpenTelemetry.Contrib.Instrumentation.EventCounters\OpenTelemetry.Contrib.Instrumentation.EventCounters.csproj" />
+    </ItemGroup>
+
+</Project>

examples/eventcounters/Examples.EventCounters.AspNetCore/Program.cs

@@ -0,0 +1,58 @@
+// <copyright file="Program.cs" company="OpenTelemetry Authors">
+// Copyright The OpenTelemetry Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+// </copyright>
+
+using OpenTelemetry.Metrics;
+
+var builder = WebApplication.CreateBuilder(args);
+
+// Add services to the container.
+
+builder.Services.AddControllers();
+
+builder.Services.AddOpenTelemetryMetrics(
+                (builder) => builder
+                    .AddPrometheusExporter()
+                    .AddEventCounters(options =>
+                    {
+                        options.AddRuntime()
+                            .WithCounters("cpu-usage", "working-set");
+
+                        options.AddAspNetCore()
+                            .WithCurrentRequests("http_requests_in_progress")
+                            .WithFailedRequests()
+                            .WithRequestRate()
+                            .WithTotalRequests("http_requests_received_total");
+
+                        options.AddEventSource("Microsoft-AspNetCore-Server-Kestrel")
+                            .WithCounters("total-connections")
+                            .With("connections-per-second", "The number of connections per update interval to the web server", MetricType.LongSum);
+
+                        options.AddEventSource("Microsoft.AspNetCore.Http.Connections");
+                    }));
+
+var app = builder.Build();
+
+// Configure the HTTP request pipeline.
+
+app.UseHttpsRedirection();
+
+app.UseAuthorization();
+
+app.MapControllers();
+
+app.UseOpenTelemetryPrometheusScrapingEndpoint();
+
+app.Run();

examples/eventcounters/Examples.EventCounters.AspNetCore/Properties/launchSettings.json

@@ -0,0 +1,15 @@
+{
+  "$schema": "https://json.schemastore.org/launchsettings.json",
+  "profiles": {
+    "Examples.EventCounter.AspNetCore": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "launchUrl": "weatherforecast",
+      "applicationUrl": "https://localhost:7034;http://localhost:5034",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    }
+  }
+}

src/OpenTelemetry.Contrib.EventCounterListener/EventPipe/CounterType.cs → examples/eventcounters/Examples.EventCounters.AspNetCore/WeatherForecast.cs

@@ -1,4 +1,4 @@
-// <copyright file="CounterType.cs" company="OpenTelemetry Authors">
+// <copyright file="WeatherForecast.cs" company="OpenTelemetry Authors">
 // Copyright The OpenTelemetry Authors
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
@@ -14,17 +14,16 @@
 // limitations under the License.
 // </copyright>
 
- namespace OpenTelemetry.Contrib.EventCounterListener.EventPipe
+namespace Examples.EventCounter.AspNetCore
 {
-    /// <summary>
-    /// Counter Type Enumeration.
-    /// </summary>
-    internal enum CounterType
+    public class WeatherForecast
     {
-        /// <summary>Metric Counter Type.</summary>
-        Metric,
+        public DateTime Date { get; set; }
 
-        /// <summary>Rate Counter Type.</summary>
-        Rate,
+        public int TemperatureC { get; set; }
+
+        public int TemperatureF => 32 + (int)(this.TemperatureC / 0.5556);
+
+        public string? Summary { get; set; }
     }
 }

examples/eventcounters/Examples.EventCounters.AspNetCore/appsettings.Development.json

@@ -0,0 +1,8 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  }
+}

examples/eventcounters/Examples.EventCounters.AspNetCore/appsettings.json

@@ -0,0 +1,9 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  },
+  "AllowedHosts": "*"
+}

examples/eventcounters/README.md

@@ -0,0 +1,12 @@
+# Event counter Instrumentation for OpenTelemetry .NET - Examples
+
+Project structure:
+
+* Examples.EventCounters.AspNetCore
+
+  This is a small example how to use and configure the instrumentation library.
+
+  It shows how to add several event counters.
+
+  Start the project and open the "/metrics" endpoint to view the published 
+  metrics.

opentelemetry-dotnet-contrib.sln

@@ -1,7 +1,7 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio Version 16
-VisualStudioVersion = 16.0.30204.135
+# Visual Studio Version 17
+VisualStudioVersion = 17.0.32112.339
 MinimumVisualStudioVersion = 15.0.26124.0
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{22DF5DC0-1290-4E83-A9D8-6BB7DE3B3E63}"
 EndProject
@@ -156,9 +156,16 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Examples.Owin", "examples\o
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "OpenTelemetry.Contrib.Instrumentation.Owin.Tests", "test\OpenTelemetry.Contrib.Instrumentation.Owin.Tests\OpenTelemetry.Contrib.Instrumentation.Owin.Tests.csproj", "{D52558C8-B7BF-4F59-A0FA-9AA629E68012}"
 EndProject
-Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "OpenTelemetry.Contrib.EventCounterListener", "src\OpenTelemetry.Contrib.EventCounterListener\OpenTelemetry.Contrib.EventCounterListener.csproj", "{8487C723-DCAE-4EF5-A29F-ADB9BCDF9DCD}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "OpenTelemetry.Contrib.Instrumentation.EventCounters", "src\OpenTelemetry.Contrib.Instrumentation.EventCounters\OpenTelemetry.Contrib.Instrumentation.EventCounters.csproj", "{8487C723-DCAE-4EF5-A29F-ADB9BCDF9DCD}"
 EndProject
-Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "OpenTelemetry.Contrib.EventCounterListener.Tests", "test\OpenTelemetry.Contrib.EventCounterListener.Tests\OpenTelemetry.Contrib.EventCounterListener.Tests.csproj", "{2872634A-581E-494C-B3ED-01E0F3D304ED}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "OpenTelemetry.Contrib.Instrumentation.EventCounters.Tests", "test\OpenTelemetry.Contrib.Instrumentation.EventCounters.Tests\OpenTelemetry.Contrib.Instrumentation.EventCounters.Tests.csproj", "{2872634A-581E-494C-B3ED-01E0F3D304ED}"
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "eventcounters", "eventcounters", "{906FBA3E-CE12-4618-A833-184BA8ACC24C}"
+	ProjectSection(SolutionItems) = preProject
+		examples\eventcounters\README.md = examples\eventcounters\README.md
+	EndProjectSection
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Examples.EventCounters.AspNetCore", "examples\eventcounters\Examples.EventCounters.AspNetCore\Examples.EventCounters.AspNetCore.csproj", "{D593FCA7-724D-4C46-AF94-EE48FA2AC48A}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -318,6 +325,10 @@ Global
 		{2872634A-581E-494C-B3ED-01E0F3D304ED}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{2872634A-581E-494C-B3ED-01E0F3D304ED}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{2872634A-581E-494C-B3ED-01E0F3D304ED}.Release|Any CPU.Build.0 = Release|Any CPU
+		{D593FCA7-724D-4C46-AF94-EE48FA2AC48A}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{D593FCA7-724D-4C46-AF94-EE48FA2AC48A}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{D593FCA7-724D-4C46-AF94-EE48FA2AC48A}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{D593FCA7-724D-4C46-AF94-EE48FA2AC48A}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -367,6 +378,8 @@ Global
 		{D52558C8-B7BF-4F59-A0FA-9AA629E68012} = {2097345F-4DD3-477D-BC54-A922F9B2B402}
 		{8487C723-DCAE-4EF5-A29F-ADB9BCDF9DCD} = {22DF5DC0-1290-4E83-A9D8-6BB7DE3B3E63}
 		{2872634A-581E-494C-B3ED-01E0F3D304ED} = {2097345F-4DD3-477D-BC54-A922F9B2B402}
+		{906FBA3E-CE12-4618-A833-184BA8ACC24C} = {B75EE478-97F7-4E9F-9A5A-DB3D0988EDEA}
+		{D593FCA7-724D-4C46-AF94-EE48FA2AC48A} = {906FBA3E-CE12-4618-A833-184BA8ACC24C}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {B0816796-CDB3-47D7-8C3C-946434DE3B66}