Use custom activity source

src/Vegasco.Server.Api/Common/DependencyInjectionExtensions.cs

@@ -2,6 +2,8 @@
 using FluentValidation;
 using Microsoft.AspNetCore.Authentication.JwtBearer;
 using Microsoft.Extensions.Options;
+using System.Diagnostics;
+using System.Reflection;
 using Vegasco.Server.Api.Authentication;
 using Vegasco.Server.Api.Common;
 using Vegasco.Server.Api.Persistence;
@@ -27,6 +29,11 @@ public static class DependencyInjectionExtensions
 
 	private static IServiceCollection AddMiscellaneousServices(this IServiceCollection services)
 	{
+		var assemblyName = Assembly.GetExecutingAssembly()
+			.GetName()
+			.Name ?? "Vegasco.Server.Api";
+		services.AddSingleton(new ActivitySource(assemblyName));
+
 		services.AddResponseCompression();
 
 		services.AddValidatorsFromAssemblies(

src/Vegasco.Server.Api/Persistence/ApplyMigrationsService.cs

@@ -1,12 +1,18 @@
 using Microsoft.EntityFrameworkCore;
+using System.Diagnostics;
 
 namespace Vegasco.Server.Api.Persistence;
 
-public class ApplyMigrationsService(ILogger<ApplyMigrationsService> logger, IServiceScopeFactory scopeFactory)
+public class ApplyMigrationsService(
+	ILogger<ApplyMigrationsService> logger,
+	IServiceScopeFactory scopeFactory,
+	ActivitySource activitySource)
 	: IHostedService
 {
 	public async Task StartAsync(CancellationToken cancellationToken)
 	{
+		using var activity = activitySource.StartActivity("ApplyMigrations");
+
 		logger.LogInformation("Starting migrations");
 
 		using IServiceScope scope = scopeFactory.CreateScope();