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Phase 1: Wire up OpenTelemetry in Budget.Api

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Adds OTel packages (Extensions.Hosting, Instrumentation.AspNetCore/Http/EFCore,
Exporter.OTLP) and configures logging + tracing in Program.cs. Endpoint is
intentionally left unset in code — read from OTEL_EXPORTER_OTLP_ENDPOINT at runtime.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Spencer Twaddle
2026-05-04 17:29:01 -05:00
parent 78fc982adc
commit 389446ee21
2 changed files with 23 additions and 0 deletions
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src/Budget.Api/Budget.Api.csproj
+5
View File
@@ -13,6 +13,11 @@
<PrivateAssets>all</PrivateAssets>
</PackageReference>
<PackageReference Include="Microsoft.Extensions.Diagnostics.HealthChecks.EntityFrameworkCore" Version="10.0.7" />
<PackageReference Include="OpenTelemetry.Exporter.OpenTelemetryProtocol" Version="1.15.3" />
<PackageReference Include="OpenTelemetry.Extensions.Hosting" Version="1.15.3" />
<PackageReference Include="OpenTelemetry.Instrumentation.AspNetCore" Version="1.15.2" />
<PackageReference Include="OpenTelemetry.Instrumentation.EntityFrameworkCore" Version="1.15.1-beta.1" />
<PackageReference Include="OpenTelemetry.Instrumentation.Http" Version="1.15.1" />
</ItemGroup>
<ItemGroup>
src/Budget.Api/Program.cs
+18
View File
@@ -10,9 +10,27 @@ using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Diagnostics.HealthChecks;
using Microsoft.Extensions.Options;
using Microsoft.IdentityModel.Tokens;
using OpenTelemetry.Resources;
using OpenTelemetry.Trace;
var builder = WebApplication.CreateBuilder(args);
builder.Logging.AddOpenTelemetry(logging =>
{
logging.IncludeFormattedMessage = true;
logging.IncludeScopes = true;
});
builder.Services.AddOpenTelemetry()
.ConfigureResource(resource => resource
.AddService(serviceName: "budget", serviceVersion: "1.0.0"))
.WithLogging()
.WithTracing(tracing => tracing
.AddAspNetCoreInstrumentation()
.AddHttpClientInstrumentation()
.AddEntityFrameworkCoreInstrumentation()
.AddOtlpExporter());
var connStr = builder.Configuration.GetConnectionString("DefaultConnection")
?? $"Host={builder.Configuration["POSTGRES_HOST"] ?? "localhost"};" +
$"Port={builder.Configuration["POSTGRES_PORT"] ?? "5432"};" +