Add more telemetry.

Aaru.Server/Aaru.Server.csproj

@@ -19,9 +19,13 @@
     <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" />
     <PackageReference Include="MimeKit" />
     <PackageReference Include="OpenTelemetry" />
+    <PackageReference Include="OpenTelemetry.Exporter.Prometheus.AspNetCore" />
     <PackageReference Include="OpenTelemetry.Extensions.Hosting" />
     <PackageReference Include="OpenTelemetry.Instrumentation.AspNetCore" />
+    <PackageReference Include="OpenTelemetry.Instrumentation.EventCounters" />
     <PackageReference Include="OpenTelemetry.Instrumentation.Http" />
+    <PackageReference Include="OpenTelemetry.Instrumentation.Process" />
+    <PackageReference Include="OpenTelemetry.Instrumentation.Runtime" />
     <PackageReference Include="Sentry" />
     <PackageReference Include="Sentry.AspNetCore" />
     <PackageReference Include="Sentry.Extensions.Logging" />

Aaru.Server/Program.cs

@@ -9,6 +9,7 @@ using Microsoft.AspNetCore.Identity;
 using Microsoft.EntityFrameworkCore;
 using OpenTelemetry.Metrics;
 using OpenTelemetry.Trace;
+using OpenTelemetry.Resources;
 using Sentry.OpenTelemetry;
 using Serilog;
 using Serilog.Events;
@@ -114,7 +115,23 @@ builder.Services.AddOpenTelemetry()
                                             .AddSentry() // <-- Configure OpenTelemetry to send trace information to Sentry
                    )
        .WithMetrics(metricsProviderBuilder =>
-                        metricsProviderBuilder.AddAspNetCoreInstrumentation().AddHttpClientInstrumentation());
+            metricsProviderBuilder
+                .SetResourceBuilder(ResourceBuilder.CreateDefault()
+                    .AddService(
+                        serviceName: "Aaru.Server",
+                        serviceVersion: typeof(Program).Assembly.GetName().Version?.ToString() ?? "unknown"))
+                .AddAspNetCoreInstrumentation()
+                .AddHttpClientInstrumentation()
+                .AddRuntimeInstrumentation()
+                .AddProcessInstrumentation()
+                .AddEventCountersInstrumentation(options =>
+                {
+                    options.AddEventSources(
+                        "System.Runtime",
+                        "Microsoft.AspNetCore.Hosting",
+                        "Microsoft-AspNetCore-Server-Kestrel");
+                })
+                .AddPrometheusExporter());
 
 builder.WebHost.UseSentry(o =>
 {
@@ -191,6 +208,8 @@ app.MapRazorComponents<App>().AddInteractiveServerRenderMode();
 app.MapAdditionalIdentityEndpoints();
 app.MapControllers();
 
+app.UseOpenTelemetryPrometheusScrapingEndpoint();
+
 using(IServiceScope scope = app.Services.CreateScope())
 {
     IServiceProvider services = scope.ServiceProvider;

Directory.Packages.props

@@ -22,9 +22,13 @@
     <PackageVersion Include="Microsoft.VisualStudio.Threading.Analyzers" Version="17.14.15" />
     <PackageVersion Include="MimeKit" Version="4.12.0" />
     <PackageVersion Include="OpenTelemetry" Version="1.12.0" />
+    <PackageVersion Include="OpenTelemetry.Exporter.Prometheus.AspNetCore" Version="1.12.0-beta.1" />
     <PackageVersion Include="OpenTelemetry.Extensions.Hosting" Version="1.12.0" />
     <PackageVersion Include="OpenTelemetry.Instrumentation.AspNetCore" Version="1.12.0" />
+    <PackageVersion Include="OpenTelemetry.Instrumentation.EventCounters" Version="1.5.1-alpha.1" />
     <PackageVersion Include="OpenTelemetry.Instrumentation.Http" Version="1.12.0" />
+    <PackageVersion Include="OpenTelemetry.Instrumentation.Process" Version="1.12.0-beta.1" />
+    <PackageVersion Include="OpenTelemetry.Instrumentation.Runtime" Version="1.12.0" />
     <PackageVersion Include="Philips.CodeAnalysis.MaintainabilityAnalyzers" Version="1.5.0" />
     <PackageVersion Include="Pomelo.EntityFrameworkCore.MySql.Design" Version="1.1.2" />
     <PackageVersion Include="Pomelo.EntityFrameworkCore.MySql" Version="9.0.0-preview.3.efcore.9.0.0" />