Use custom activity source

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

@@ -1,18 +1,24 @@
 using Microsoft.EntityFrameworkCore;
+using System.Diagnostics;
 
 namespace Vegasco.Server.Api.Persistence;
 
-public class ApplyMigrationsService(ILogger<ApplyMigrationsService> logger, IServiceScopeFactory scopeFactory)
-    : IHostedService
+public class ApplyMigrationsService(
+	ILogger<ApplyMigrationsService> logger,
+	IServiceScopeFactory scopeFactory,
+	ActivitySource activitySource)
+	: IHostedService
 {
-    public async Task StartAsync(CancellationToken cancellationToken)
-    {
-        logger.LogInformation("Starting migrations");
-        
-        using IServiceScope scope = scopeFactory.CreateScope();
-        await using var dbContext = scope.ServiceProvider.GetRequiredService<ApplicationDbContext>();
-        await dbContext.Database.MigrateAsync(cancellationToken);
-    }
+	public async Task StartAsync(CancellationToken cancellationToken)
+	{
+		using var activity = activitySource.StartActivity("ApplyMigrations");
 
-    public Task StopAsync(CancellationToken cancellationToken) => Task.CompletedTask;
+		logger.LogInformation("Starting migrations");
+
+		using IServiceScope scope = scopeFactory.CreateScope();
+		await using var dbContext = scope.ServiceProvider.GetRequiredService<ApplicationDbContext>();
+		await dbContext.Database.MigrateAsync(cancellationToken);
+	}
+
+	public Task StopAsync(CancellationToken cancellationToken) => Task.CompletedTask;
 }