Laravel 5.4 AWS server

I have created a Laravel project in laravel 5.4 and i have made it live using AWS server . Now the issue I face is I have to provide the 777 permission to storage folder very frequently and due to this the site is not working properly. Can anyone help me with this as what can be the issue ? I have already given 777 permission to storage folder but somehow the permission changes and site stops as it cannot write log in log file. Thanks in advance

via Chebli Mohamed