Updating instructions for Flysystem 3 (#827)

cookbook/external-media-storage.rst

@@ -1,19 +1,12 @@
 Store Media in an external Storage
 ==================================
 
-Sulu is able to upload newly created media files directly to an external storage provider (such as AWS S3 or
-Google Cloud Storage).
+Sulu stores its media with the `flysystem file system abstraction`_. This allows you to configure different storage backends easily.
 
-AWS-S3
-------
+By default this uses the local file system storage. A list of other supported storage backends and their installation instructions
+can be found here: https://github.com/thephpleague/flysystem-bundle/blob/3.x/docs/2-cloud-storage-providers.md
 
-First install dependencies.
-
-.. code-block:: bash
-
-    composer require "league/flysystem:^1.0" "league/flysystem-aws-s3-v3:^1.0.1"
-
-Configure the storage with following yaml-snippet:
+If you want to set up multiple storage backends you have to configure which of those to use for sulu media which can be done like this:
 
 .. code-block:: yaml
 
@@ -30,66 +23,4 @@ Configure the storage with following yaml-snippet:
 If you use s3 compatible services (e.g. minio) you can pass additional ``arguments`` and ``endpoint`` to the
 configuration.
 
-Google Cloud-Storage
---------------------
-
-First follow this the `Google Cloud Documentation`_ to setup a System-Account and download the json-key.
-
-.. code-block:: json
-
-    {
-        "type": "service_account",
-        "project_id": "project-id",
-        "private_key_id": "some_number",
-        "private_key": "-----BEGIN PRIVATE KEY-----\n....
-        =\n-----END PRIVATE KEY-----\n",
-        "client_email": "<api-name>[email protected]",
-        "client_id": "...",
-        "auth_uri": "https://accounts.google.com/o/oauth2/auth",
-        "token_uri": "https://accounts.google.com/o/oauth2/token",
-        "auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/v1/certs",
-        "client_x509_cert_url": "https://www.googleapis.com/...<api-name>api%40project-id.iam.gserviceaccount.com"
-    }
-
-Install the dependencies:
-
-.. code-block:: bash
-
-    composer require "league/flysystem:^1.0" "superbalist/flysystem-google-storage:^7.1"
-
-Dump this file to a readable folder on your machine and configure the storage with following yaml-snippet:
-
-.. code-block:: yaml
-
-    sulu_media:
-        storage: google_cloud
-        storages:
-            google_cloud:
-                key_file_path: '/path/to/key.json'
-                bucket_name: 'sulu-bucket'
-                path_prefix: 'optional path prefix'
-
-.. _Google Cloud Documentation: https://cloud.google.com/video-intelligence/docs/common/auth#set_up_a_service_account
-
-
-Azure Blob Storage
-------------------
-
-First install dependencies.
-
-.. code-block:: bash
-
-    composer require "league/flysystem:^1.0" "league/flysystem-azure-blob-storage:^0.1"
-
-Configure the storage with following yaml-snippet:
-
-.. code-block:: yaml
-
-    sulu_media:
-        storage: azure_blob
-        storages:
-            azure_blob:
-                connection_string: 'DefaultEndpointsProtocol=https;AccountName={YOUR_ACCOUNT_NAME};AccountKey={YOUR_ACCOUNT_KEY};'
-                container_name: 'container-name'
-                path_prefix: 'optional path prefix'
-
+.. _flysystem file system abstraction: https://github.com/thephpleague/flysystem