docs: Add Magento 2 Remote Storage documentation

Author: tdgroot

docs/ecommerce-applications/magento-2/how-to-configure-remote-storage-for-magento-2-x.md

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+---
+myst:
+  html_meta:
+    description: Configure remote storage for Magento 2.x. Learn how to configure
+      Magento 2 to start storing files in your bucket using a single command.
+    title: How to Configure Remote Storage for Magento 2.x | Hypernode
+---
+
+# How to Configure Remote Storage for Magento 2.x
+
+Magento 2.x supports remote storage for media files, import/export files, and other files.
+This feature allows you to store files in a remote storage location, such as an Amazon S3 bucket, instead of storing them on the server itself.
+
+This can be useful for many reasons, such as:
+- Offloading storage from your server, reducing the load on your server, and improving performance.
+- Allows you to make use of [horizontal scaling](../../hypernode-platform/autoscaling/how-does-horizontal-autoscaling-work), as you can easily add more servers without having to worry about syncing files between them.
+- Allows for effortless storage capacity scaling, as you can easily increase the storage capacity of your remote storage location.
+- Serving assets from a CDN, which can improve the performance of your website.
+
+## Configuring the application
+
+Configuring Magento 2 to start storing files in your bucket is done using a single command.
+If you're using a different provider than AWS S3, you need to specify the `--remote-storage-endpoint` option.
+
+**AWS S3**
+
+```bash
+bin/magento setup:config:set \
+    --remote-storage-driver="aws-s3" \
+    --remote-storage-bucket="my_bucket_name" \
+    --remote-storage-region="my-aws-region" \
+    --remote-storage-key="abcd1234" \
+    --remote-storage-secret="abcd1234"
+```
+
+**Other S3 compatible providers**
+
+```bash
+bin/magento setup:config:set \
+    --remote-storage-driver="aws-s3" \
+    --remote-storage-bucket="my_bucket_name" \
+    --remote-storage-region="my-aws-region" \
+    --remote-storage-key="abcd1234" \
+    --remote-storage-secret="abcd1234" \
+    --remote-storage-endpoint="https://my-s3-compatible.endpoint.com"
+```
+
+## Syncing the files
+
+Instead of running (which is Magento's official way to do this):
+
+```bash
+bin/magento remote-storage:sync
+```
+
+One can run the following instead to really speed up the process:
+
+```bash
+aws s3 sync pub/media/ s3://my_bucket_name/media/
+aws s3 sync var/import_export s3://my_bucket_name/import_export
+```
+
+This is much faster than Magento's built-in sync, because `aws s3 sync` uploads files concurrently.
+
+## The storage flag file in the bucket
+
+Magento's S3 implementation creates a test file called `storage.flag`, which is basically created to test if the connection works. So this is not a magic file to mark anything ([source](https://github.com/magento/magento2/blob/6f4805f82bb7511f72935daa493d48ebda3d9039/app/code/Magento/AwsS3/Driver/AwsS3.php#L104)).
+
+## Magento remote storage documentation
+
+- [Configure Remote Storage](https://experienceleague.adobe.com/en/docs/commerce-operations/configuration-guide/storage/remote-storage/remote-storage)
+- [Configure AWS S3 bucket for remote storage](https://experienceleague.adobe.com/en/docs/commerce-operations/configuration-guide/storage/remote-storage/remote-storage-aws-s3)