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GrafanaBlazor/BlazorApp/Program.cs

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+using Microsoft.AspNetCore.Components;
+using BlazorApp.Components;
+using Serilog;
+using OpenTelemetry.Resources;
+using OpenTelemetry.Trace;
+using OpenTelemetry.Metrics;
+
+var builder = WebApplication.CreateBuilder(args);
+
+// Configure Serilog
+Log.Logger = new LoggerConfiguration()
+    .ReadFrom.Configuration(builder.Configuration)
+    .Enrich.FromLogContext()
+    .WriteTo.Console()
+    .WriteTo.File("logs/blazorapp-.log", rollingInterval: RollingInterval.Day)
+    .CreateLogger();
+
+builder.Host.UseSerilog();
+
+// Add services to the container
+builder.Services.AddRazorComponents()
+    .AddInteractiveServerComponents();
+
+// Add Application Insights
+builder.Services.AddApplicationInsightsTelemetry();
+
+// Add OpenTelemetry
+builder.Services.AddOpenTelemetry()
+    .ConfigureResource(resource => resource
+        .AddService(serviceName: "BlazorApp"))
+    .WithTracing(tracing => tracing
+        .AddAspNetCoreInstrumentation()
+        .AddHttpClientInstrumentation()
+        .AddConsoleExporter())
+    .WithMetrics(metrics => metrics
+        .AddAspNetCoreInstrumentation()
+        .AddHttpClientInstrumentation()
+        .AddConsoleExporter());
+
+// Add health checks
+builder.Services.AddHealthChecks();
+
+var app = builder.Build();
+
+// Configure the HTTP request pipeline
+if (!app.Environment.IsDevelopment())
+{
+    app.UseExceptionHandler("/Error", createScopeForErrors: true);
+    app.UseHsts();
+}
+
+app.UseHttpsRedirection();
+app.UseStaticFiles();
+app.UseAntiforgery();
+
+// Enable Prometheus metrics endpoint
+app.UseMetricServer();
+app.UseHttpMetrics();
+
+// Map health check endpoint
+app.MapHealthChecks("/health");
+
+app.MapRazorComponents<App>()
+    .AddInteractiveServerRenderMode();
+
+app.Logger.LogInformation("BlazorApp starting up...");
+
+app.Run();