gitlab-org--gitlab-foss/doc/administration/geo/replication/object_storage.md

# Geo with Object storage **[PREMIUM ONLY]**

Geo can be used in combination with Object Storage (AWS S3, or
other compatible object storage).

## Configuration

At this time it is required that if object storage is enabled on the
**primary** node, it must also be enabled on each **secondary** node.

**Secondary** nodes can use the same storage bucket as the **primary** node, or
they can use a replicated storage bucket. At this time GitLab does not
take care of content replication in object storage.

For LFS, follow the documentation to
[set up LFS object storage](../../../workflow/lfs/lfs_administration.md#storing-lfs-objects-in-remote-object-storage).

For CI job artifacts, there is similar documentation to configure
[jobs artifact object storage](../../job_artifacts.md#using-object-storage)

For user uploads, there is similar documentation to configure [upload object storage](../../uploads.md#using-object-storage-core-only)

You should enable and configure object storage on both **primary** and **secondary**
nodes. Migrating existing data to object storage should be performed on the
**primary** node only. **Secondary** nodes will automatically notice that the migrated
files are now in object storage.

## Replication

When using Amazon S3, you can use
[CRR](https://docs.aws.amazon.com/AmazonS3/latest/dev/crr.html) to
have automatic replication between the bucket used by the **primary** node and
the bucket used by **secondary** nodes.

If you are using Google Cloud Storage, consider using
[Multi-Regional Storage](https://cloud.google.com/storage/docs/storage-classes#multi-regional).
Or you can use the [Storage Transfer Service](https://cloud.google.com/storage-transfer/docs/),
although this only supports daily synchronization.

For manual synchronization, or scheduled by `cron`, please have a look at:

- [`s3cmd sync`](https://s3tools.org/s3cmd-sync)
- [`gsutil rsync`](https://cloud.google.com/storage/docs/gsutil/commands/rsync)