🎨 Splitting up startup steps in Program

DysonNetwork.Sphere/Startup/MetricsConfiguration.cs

@@ -0,0 +1,40 @@
+using OpenTelemetry.Metrics;
+using OpenTelemetry.Trace;
+using Prometheus;
+using Prometheus.SystemMetrics;
+
+namespace DysonNetwork.Sphere.Startup;
+
+public static class MetricsConfiguration
+{
+    public static IServiceCollection AddAppMetrics(this IServiceCollection services)
+    {
+        // Prometheus
+        services.UseHttpClientMetrics();
+        services.AddHealthChecks();
+        services.AddSystemMetrics();
+        services.AddPrometheusEntityFrameworkMetrics();
+        services.AddPrometheusAspNetCoreMetrics();
+        services.AddPrometheusHttpClientMetrics();
+
+        // OpenTelemetry
+        services.AddOpenTelemetry()
+            .WithTracing(tracing =>
+            {
+                tracing
+                    .AddAspNetCoreInstrumentation()
+                    .AddHttpClientInstrumentation()
+                    .AddOtlpExporter();
+            })
+            .WithMetrics(metrics =>
+            {
+                metrics
+                    .AddAspNetCoreInstrumentation()
+                    .AddHttpClientInstrumentation()
+                    .AddRuntimeInstrumentation()
+                    .AddOtlpExporter();
+            });
+
+        return services;
+    }
+}