feat: add tracing enrichment and prometheus exporter

src/Api/TakeoutSaaS.UserApi/Program.cs

@@ -11,18 +11,20 @@ using TakeoutSaaS.Shared.Web.Extensions;
 using TakeoutSaaS.Shared.Web.Swagger;
 
 var builder = WebApplication.CreateBuilder(args);
+const string logTemplate = "[{Timestamp:yyyy-MM-dd HH:mm:ss.fff zzz} {Level:u3}] [TraceId:{TraceId}] [SpanId:{SpanId}] [Service:{Service}] {SourceContext} {Message:lj}{NewLine}{Exception}";
 
 builder.Host.UseSerilog((_, _, configuration) =>
 {
     configuration
         .Enrich.FromLogContext()
         .Enrich.WithProperty("Service", "UserApi")
-        .WriteTo.Console()
+        .WriteTo.Console(outputTemplate: logTemplate)
         .WriteTo.File(
             "logs/user-api-.log",
             rollingInterval: RollingInterval.Day,
             retainedFileCountLimit: 7,
-            shared: true);
+            shared: true,
+            outputTemplate: logTemplate);
 });
 
 builder.Services.AddSharedWebCore();
@@ -33,6 +35,7 @@ builder.Services.AddSharedSwagger(options =>
     options.EnableAuthorization = true;
 });
 builder.Services.AddTenantResolution(builder.Configuration);
+builder.Services.AddHealthChecks();
 var otelSection = builder.Configuration.GetSection("Otel");
 var otelEndpoint = otelSection.GetValue<string>("Endpoint");
 var useConsoleExporter = otelSection.GetValue<bool?>("UseConsoleExporter") ?? builder.Environment.IsDevelopment();
@@ -67,7 +70,8 @@ builder.Services.AddOpenTelemetry()
         metrics
             .AddAspNetCoreInstrumentation()
             .AddHttpClientInstrumentation()
-            .AddRuntimeInstrumentation();
+            .AddRuntimeInstrumentation()
+            .AddPrometheusExporter();
 
         if (!string.IsNullOrWhiteSpace(otelEndpoint))
         {
@@ -99,6 +103,8 @@ app.UseTenantResolution();
 app.UseSharedWebCore();
 app.UseSharedSwagger();
 
+app.MapHealthChecks("/healthz");
+app.MapPrometheusScrapingEndpoint();
 app.MapControllers();
 app.Run();