Add core Laravel files and Docker config

public/index.php

@@ -0,0 +1,17 @@
+<?php
+
+use Illuminate\Http\Request;
+
+define('LARAVEL_START', microtime(true));
+
+require __DIR__.'/../vendor/autoload.php';
+
+$app = require_once __DIR__.'/../bootstrap/app.php';
+
+$kernel = $app->make(Illuminate\Contracts\Http\Kernel::class);
+
+$response = $kernel->handle(
+    $request = Request::capture()
+)->send();
+
+$kernel->terminate($request, $response);