Umbraco DI Composition Root

UmbracoApplication.cs

using Autofac;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Optimization;
using Umbraco.Core;
using Umbraco.Core.Services;

namespace MyApplication
{
    public class UmbracoApplication : IApplicationEventHandler
    {
        public void OnApplicationStarted(UmbracoApplicationBase umbracoApplication, ApplicationContext applicationContext)
        {
            BundleConfig.RegisterBundles(BundleTable.Bundles);
            var builder = new ContainerBuilder();
            
            // Here we will register our components with our DI container

        }

        public void OnApplicationInitialized(UmbracoApplicationBase umbracoApplication, ApplicationContext applicationContext)
        {
        }

        public void OnApplicationStarting(UmbracoApplicationBase umbracoApplication, ApplicationContext applicationContext)
        {
        }
    }
}