distribution/docs/storage-drivers/inmemory.md

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Explains how to use the in-memory storage drivers	registry, service, driver, images, storage, in-memory	main parent smn_storagedrivers	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 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.

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