crater/database/factories/FileDiskFactory.php

<?php

namespace Database\Factories;

use Crater\Models\FileDisk;
use Illuminate\Database\Eloquent\Factories\Factory;

class FileDiskFactory extends Factory
{
    /**
     * The name of the factory's corresponding model.
     *
     * @var string
     */
    protected $model = FileDisk::class;

    /**
     * Define the model's default state.
     *
     * @return array
     */
    public function definition()
    {
        return [
            'name' => $this->faker->word,
            'driver' => 'local',
            'set_as_default' => false,
            'credentials' =>  [
                'driver' => 'local',
                'root' => storage_path('app'),
            ]

        ];
    }
}