Ça a l'air que DotNet Aspire c'est ben sweet.

BlazorCanvas/BlazorCanvas.ServiceDefaults/BlazorCanvas.ServiceDefaults.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Library</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <IsAspireSharedProject>true</IsAspireSharedProject>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <FrameworkReference Include="Microsoft.AspNetCore.App" />
+
+    <PackageReference Include="Microsoft.Extensions.Http.Resilience" Version="8.0.0" />
+    <PackageReference Include="Microsoft.Extensions.ServiceDiscovery" Version="8.0.0-preview.1.23557.2" />
+    <PackageReference Include="OpenTelemetry.Exporter.OpenTelemetryProtocol" Version="1.7.0-alpha.1" />
+    <PackageReference Include="OpenTelemetry.Extensions.Hosting" Version="1.7.0-alpha.1" />
+    <PackageReference Include="OpenTelemetry.Instrumentation.AspNetCore" Version="1.6.0-beta.2" />
+    <PackageReference Include="OpenTelemetry.Instrumentation.GrpcNetClient" Version="1.6.0-beta.2" />
+    <PackageReference Include="OpenTelemetry.Instrumentation.Http" Version="1.6.0-beta.2" />
+    <PackageReference Include="OpenTelemetry.Instrumentation.Runtime" Version="1.5.1" />
+  </ItemGroup>
+
+</Project>

BlazorCanvas/BlazorCanvas.ServiceDefaults/Extensions.cs

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+using Microsoft.AspNetCore.Builder;
+using Microsoft.AspNetCore.Diagnostics.HealthChecks;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Diagnostics.HealthChecks;
+using Microsoft.Extensions.Logging;
+using OpenTelemetry.Logs;
+using OpenTelemetry.Metrics;
+using OpenTelemetry.Trace;
+
+namespace Microsoft.Extensions.Hosting;
+
+public static class Extensions
+{
+    public static IHostApplicationBuilder AddServiceDefaults(this IHostApplicationBuilder builder)
+    {
+        builder.ConfigureOpenTelemetry();
+
+        builder.AddDefaultHealthChecks();
+
+        builder.Services.AddServiceDiscovery();
+
+        builder.Services.ConfigureHttpClientDefaults(http =>
+        {
+            // Turn on resilience by default
+            http.AddStandardResilienceHandler();
+
+            // Turn on service discovery by default
+            http.UseServiceDiscovery();
+        });
+
+        return builder;
+    }
+
+    public static IHostApplicationBuilder ConfigureOpenTelemetry(this IHostApplicationBuilder builder)
+    {
+        builder.Logging.AddOpenTelemetry(logging =>
+        {
+            logging.IncludeFormattedMessage = true;
+            logging.IncludeScopes = true;
+        });
+
+        builder.Services.AddOpenTelemetry()
+            .WithMetrics(metrics =>
+            {
+                metrics.AddRuntimeInstrumentation()
+                       .AddBuiltInMeters();
+            })
+            .WithTracing(tracing =>
+            {
+                if (builder.Environment.IsDevelopment())
+                {
+                    // We want to view all traces in development
+                    tracing.SetSampler(new AlwaysOnSampler());
+                }
+
+                tracing.AddAspNetCoreInstrumentation()
+                       .AddGrpcClientInstrumentation()
+                       .AddHttpClientInstrumentation();
+            });
+
+        builder.AddOpenTelemetryExporters();
+
+        return builder;
+    }
+
+    private static IHostApplicationBuilder AddOpenTelemetryExporters(this IHostApplicationBuilder builder)
+    {
+        var useOtlpExporter = !string.IsNullOrWhiteSpace(builder.Configuration["OTEL_EXPORTER_OTLP_ENDPOINT"]);
+
+        if (useOtlpExporter)
+        {
+            builder.Services.Configure<OpenTelemetryLoggerOptions>(logging => logging.AddOtlpExporter());
+            builder.Services.ConfigureOpenTelemetryMeterProvider(metrics => metrics.AddOtlpExporter());
+            builder.Services.ConfigureOpenTelemetryTracerProvider(tracing => tracing.AddOtlpExporter());
+        }
+
+        // Uncomment the following lines to enable the Prometheus exporter (requires the OpenTelemetry.Exporter.Prometheus.AspNetCore package)
+        // builder.Services.AddOpenTelemetry()
+        //    .WithMetrics(metrics => metrics.AddPrometheusExporter());
+
+        // Uncomment the following lines to enable the Azure Monitor exporter (requires the Azure.Monitor.OpenTelemetry.Exporter package)
+        // builder.Services.AddOpenTelemetry()
+        //    .UseAzureMonitor();
+
+        return builder;
+    }
+
+    public static IHostApplicationBuilder AddDefaultHealthChecks(this IHostApplicationBuilder builder)
+    {
+        builder.Services.AddHealthChecks()
+            // Add a default liveness check to ensure app is responsive
+            .AddCheck("self", () => HealthCheckResult.Healthy(), ["live"]);
+
+        return builder;
+    }
+
+    public static WebApplication MapDefaultEndpoints(this WebApplication app)
+    {
+        // Uncomment the following line to enable the Prometheus endpoint (requires the OpenTelemetry.Exporter.Prometheus.AspNetCore package)
+        // app.MapPrometheusScrapingEndpoint();
+
+        // All health checks must pass for app to be considered ready to accept traffic after starting
+        app.MapHealthChecks("/health");
+
+        // Only health checks tagged with the "live" tag must pass for app to be considered alive
+        app.MapHealthChecks("/alive", new HealthCheckOptions
+        {
+            Predicate = r => r.Tags.Contains("live")
+        });
+
+        return app;
+    }
+
+    private static MeterProviderBuilder AddBuiltInMeters(this MeterProviderBuilder meterProviderBuilder) =>
+        meterProviderBuilder.AddMeter(
+            "Microsoft.AspNetCore.Hosting",
+            "Microsoft.AspNetCore.Server.Kestrel",
+            "System.Net.Http");
+}