s3 Integration

What I'm I doing wrong? I am using sugar 8.0.2

from config_override.php

$sugar_config['upload_wrapper_class'] = 'SugarUploadS3';
$sugar_config['aws']['aws_key'] = 's3created';
$sugar_config['aws']['aws_secret'] = 's3created';
$sugar_config['aws']['upload_bucket'] = 'public bucket';