distribution/docs/storage-drivers/inmemory.md

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---
description: Explains how to use the in-memory storage drivers
keywords:
- registry, service, driver, images, storage, in-memory
menu:
main:
parent: smn_storagedrivers
title: In-memory storage driver
---
# In-memory storage driver (Testing Only)
For purely tests purposes, you can use the `inmemory` storage driver. This
driver is an implementation of the `storagedriver.StorageDriver` interface which
uses local memory for object storage. If you would like to run a registry from
volatile memory, use the [`filesystem` driver](filesystem.md) on a ramdisk.
**IMPORTANT**: This storage driver *does not* persist data across runs. This is why it is only suitable for testing. *Never* use this driver in production.
## Parameters
None