invoiceninja/config/filesystems.php

<?php

return [

	/*
	|--------------------------------------------------------------------------
	| Default Filesystem Disk
	|--------------------------------------------------------------------------
	|
	| Here you may specify the default filesystem disk that should be used
	| by the framework. A "local" driver, as well as a variety of cloud
	| based drivers are available for your choosing. Just store away!
	|
	| Supported: "local", "s3", "rackspace"
	|
	*/

	'default' => 'local',

	/*
	|--------------------------------------------------------------------------
	| Default Cloud Filesystem Disk
	|--------------------------------------------------------------------------
	|
	| Many applications store files both locally and in the cloud. For this
	| reason, you may specify a default "cloud" driver here. This driver
	| will be bound as the Cloud disk implementation in the container.
	|
	*/

	'cloud' => 's3',

	/*
	|--------------------------------------------------------------------------
	| Filesystem Disks
	|--------------------------------------------------------------------------
	|
	| Here you may configure as many filesystem "disks" as you wish, and you
	| may even configure multiple disks of the same driver. Defaults have
	| been setup for each driver as an example of the required options.
	|
	*/

	'disks' => [

		'local' => [
			'driver' => 'local',
			'root'   => storage_path().'/app',
		],

		'logos' => [
			'driver' => 'local',
			'root'   => env('LOGO_PATH', public_path().'/logo'),
		],

		'documents' => [
			'driver' => 'local',
			'root'   => storage_path().'/documents',
		],

		's3' => [
			'driver' => 's3',
			'key'    => env('S3_KEY', ''),
			'secret' => env('S3_SECRET', ''),
			'region' => env('S3_REGION', 'us-east-1'),
			'bucket' => env('S3_BUCKET', ''),
		],

		'rackspace' => [
			'driver'    => 'rackspace',
			'username'  => env('RACKSPACE_USERNAME', ''),
			'key'       => env('RACKSPACE_KEY', ''),
			'container' => env('RACKSPACE_CONTAINER', ''),
			'endpoint'  => env('RACKSPACE_ENDPOINT', 'https://identity.api.rackspacecloud.com/v2.0/'),
			'region'    => env('RACKSPACE_REGION', 'IAD'),
			'url_type'  => env('RACKSPACE_URL_TYPE', 'publicURL')
		],

        'gcs' => [
           'driver'                               => 'gcs',
           'service_account'                      => env('GCS_USERNAME', ''),
           'service_account_certificate'          => storage_path() . '/credentials.p12',
           'service_account_certificate_password' => env('GCS_PASSWORD', ''),
           'bucket'                               => env('GCS_BUCKET', 'cloud-storage-bucket'),
        ],
	],

];