Program.cs

using System;
using System.IO;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;
using Serilog;
using Venjix.Infrastructure.Database;

namespace Venjix
{
    public class Program
    {
        public static int Main(string[] args)
        {
            var configuration = new ConfigurationBuilder()
               .AddJsonFile("appsettings.json")
               .Build();

            Log.Logger = new LoggerConfiguration()
                .ReadFrom.Configuration(configuration)
                .CreateLogger();

            try
            {
                Log.Information("Starting web host");
                var host = CreateHostBuilder(args).Build();

                CreateDataDirecoryIfNotExists();
                CreateDbIfNotExists(host);

                host.Run();
                return 0;
            }
            catch (Exception ex)
            {
                Log.Fatal(ex, "Host terminated unexpectedly");
                return 1;
            }
            finally
            {
                Log.CloseAndFlush();
            }
        }

        public static IHostBuilder CreateHostBuilder(string[] args)
        {
            return Host.CreateDefaultBuilder(args)
                .UseSerilog()
                .ConfigureWebHostDefaults(webBuilder =>
                {
                    webBuilder.UseStartup<Startup>();
                });
        }

        private static void CreateDbIfNotExists(IHost host)
        {
            using (var scope = host.Services.CreateScope())
            {

                var services = scope.ServiceProvider;
                try
                {
                    var context = services.GetRequiredService<VenjixContext>();
                    context.Database.EnsureCreated();
                }
                catch (Exception ex)
                {
                    var logger = services.GetRequiredService<ILogger<Program>>();
                    logger.LogError(ex, "An error occurred creating the DB.");
                }
            }
        }

        public static void CreateDataDirecoryIfNotExists()
        {
            var parentDir = Path.GetDirectoryName(AppDomain.CurrentDomain.BaseDirectory);
            Directory.CreateDirectory(parentDir);
        }
    }
}