autocde2.0/database/migrations/2019_09_15_000010_create_tenants_table.php

<?php

declare(strict_types=1);

use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\Schema;

class CreateTenantsTable extends Migration
{
    /**
     * Get the migration connection name.
     */
    public function getConnection(): ?string
    {
        return config('tenancy.database.central_connection');
    }

    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up(): void
    {
        Schema::create('tenants', function (Blueprint $table) {
            $table->string('id')->primary();

            // your custom columns may go here

            $table->timestamps();
            $table->json('data')->nullable();
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down(): void
    {
        Schema::dropIfExists('tenants');
    }
}