> For the complete documentation index, see [llms.txt](https://mercure-technologies.gitbook.io/xprem/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mercure-technologies.gitbook.io/xprem/3-0-x/storage/local-storage.md).

# Local Storage

{% hint style="danger" %}
This storage solution is not recommended for production use. It is intended for development and testing purposes only. If you really want to use it in production, make sure to not have multiple instances of the server running, as the assets are stored locally and not shared between instances.
{% endhint %}

To use the local file system as your storage solution, you need to set the `STORAGE_MODE` and `LOCAL_BUCKET_BASE_PATH` environment variable to the path where you want to store your assets. The server will create the necessary directories and store the assets in the specified location.

```dotenv
STORAGE_MODE=local
LOCAL_BUCKET_BASE_PATH=/path/to/your/assets
```

### Volume ownership

The Docker image runs as a non-root user (uid `100`, gid `101`). The default `LOCAL_BUCKET_BASE_PATH` (`/app/updates` inside the container) is already writable, but if you mount a volume over it — or point `LOCAL_BUCKET_BASE_PATH` at a bind mount — the mounted directory must be writable by that user:

* **Docker bind mounts (Linux):** `chown 100:101 ./updates` on the host before mounting.
* **Kubernetes:** set `fsGroup: 101` in the pod's `securityContext`.


---

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