chore(web-api): separate the telemetry-configuration into aspnet util…

…s library (#1341)

<!--- Provide a general summary of your changes in the Title above -->

## Description

<!--- Describe your changes in detail -->

As a step to configure telemetry in service and graphql, separating the
configuration into the aspnet-project

## Related Issue(s)

- #1262

## Verification

- [ ] **Your** code builds clean without any errors or warnings
- [ ] Manual testing done (required)
- [ ] Relevant automated test added (if you find this hard, leave it and
we'll help out)

## Documentation

- [ ] Documentation is updated (either in `docs`-directory, Altinnpedia
or a separate linked PR in
[altinn-studio-docs.](https://github.com/Altinn/altinn-studio-docs), if
applicable)


<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

- **New Features**
- Introduced a new method for configuring telemetry in the application,
enhancing observability through OpenTelemetry for tracing and metrics.
- Added support for Azure Monitor and Application Insights based on
environment settings.
  
- **Bug Fixes**
- Removed outdated telemetry configuration that could lead to
inconsistencies in monitoring.

- **Chores**
- Updated project dependencies to include necessary telemetry packages
for improved performance and monitoring capabilities.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

src/Digdir.Domain.Dialogporten.WebApi/Digdir.Domain.Dialogporten.WebApi.csproj

@@ -8,17 +8,12 @@
 
     <ItemGroup>
         <PackageReference Include="Azure.Identity" Version="1.13.0" />
-        <PackageReference Include="Azure.Monitor.OpenTelemetry.AspNetCore" Version="1.2.0" />
         <PackageReference Include="FastEndpoints.Swagger" Version="5.29.0"/>
-        <PackageReference Include="Microsoft.ApplicationInsights.AspNetCore" Version="2.22.0"/>
         <PackageReference Include="Microsoft.AspNetCore.Authentication.JwtBearer" Version="8.0.10" />
         <PackageReference Include="Microsoft.AspNetCore.Mvc.NewtonsoftJson" Version="8.0.10" />
         <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="8.0.10" />
         <PackageReference Include="Microsoft.Azure.AppConfiguration.AspNetCore" Version="8.0.0" />
-        <PackageReference Include="Npgsql.OpenTelemetry" Version="8.0.5" />
-        <PackageReference Include="OpenTelemetry.Instrumentation.Runtime" Version="1.9.0" />
         <PackageReference Include="Serilog.AspNetCore" Version="8.0.3" />
-        <PackageReference Include="OpenTelemetry" Version="1.9.0" />
         <PackageReference Include="Serilog.Sinks.ApplicationInsights" Version="4.0.0"/>
     </ItemGroup>
 

src/Digdir.Library.Utils.AspNet/AspNetUtilitiesExtensions.cs

@@ -1,9 +1,15 @@
+using Azure.Monitor.OpenTelemetry.AspNetCore;
 using Digdir.Library.Utils.AspNet.HealthChecks;
 using HealthChecks.UI.Client;
-using Microsoft.Extensions.DependencyInjection;
-using Microsoft.Extensions.Diagnostics.HealthChecks;
 using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Diagnostics.HealthChecks;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Diagnostics.HealthChecks;
+using Microsoft.Extensions.Hosting;
+using Npgsql;
+using OpenTelemetry.Trace;
+using OpenTelemetry.Metrics;
+using OpenTelemetry.Resources;
 
 namespace Digdir.Library.Utils.AspNet;
 
@@ -40,4 +46,43 @@ private static WebApplication MapHealthCheckEndpoint(this WebApplication app, st
         app.MapHealthChecks(path, new HealthCheckOptions { Predicate = predicate, ResponseWriter = UIResponseWriter.WriteHealthCheckUIResponse });
         return app;
     }
+
+    public static WebApplicationBuilder ConfigureTelemetry(this WebApplicationBuilder builder)
+    {
+        builder.Services.AddOpenTelemetry()
+            .ConfigureResource(resource => resource
+                .AddService(serviceName: builder.Environment.ApplicationName))
+            .WithTracing(tracing =>
+            {
+                if (builder.Environment.IsDevelopment())
+                {
+                    tracing.SetSampler(new AlwaysOnSampler());
+                }
+
+                tracing.AddAspNetCoreInstrumentation(options =>
+                {
+                    options.Filter = (httpContext) =>
+                        !httpContext.Request.Path.StartsWithSegments("/health");
+                });
+
+                tracing.AddHttpClientInstrumentation();
+                tracing.AddNpgsql();
+            })
+            .WithMetrics(metrics =>
+            {
+                metrics.AddRuntimeInstrumentation();
+            });
+
+        if (!string.IsNullOrEmpty(Environment.GetEnvironmentVariable("APPLICATIONINSIGHTS_CONNECTION_STRING")))
+        {
+            builder.Services.AddOpenTelemetry().UseAzureMonitor();
+        }
+        else
+        {
+            // Use Application Insights SDK for local development
+            builder.Services.AddApplicationInsightsTelemetry();
+        }
+
+        return builder;
+    }
 }

src/Digdir.Library.Utils.AspNet/Digdir.Library.Utils.AspNet.csproj

@@ -7,9 +7,14 @@
 
     <ItemGroup>
         <PackageReference Include="Azure.Identity" Version="1.13.0" />
+        <PackageReference Include="Azure.Monitor.OpenTelemetry.AspNetCore" Version="1.2.0" />
+        <PackageReference Include="Microsoft.ApplicationInsights.AspNetCore" Version="2.22.0" />
         <PackageReference Include="Microsoft.Extensions.Http" Version="8.0.1" />
         <PackageReference Include="AspNetCore.HealthChecks.UI.Client" Version="8.0.1" />
         <PackageReference Include="Microsoft.Azure.AppConfiguration.AspNetCore" Version="8.0.0" />
+        <PackageReference Include="Npgsql.OpenTelemetry" Version="8.0.5" />
+        <PackageReference Include="OpenTelemetry" Version="1.9.0" />
+        <PackageReference Include="OpenTelemetry.Instrumentation.Runtime" Version="1.9.0" />
     </ItemGroup>
 
 </Project>