distribution/docs/storage-drivers/gcs.md

description	keywords	title
Explains how to use the Google Cloud Storage drivers	registry, service, driver, images, storage, gcs, google, cloud	Google Cloud Storage driver

An implementation of the storagedriver.StorageDriver interface which uses Google Cloud for object storage.

Parameters

Parameter	Required	Description
bucket	yes	The name of your Google Cloud Storage bucket where you wish to store objects (needs to already be created prior to driver initialization).
keyfile	no	A private service account key file in JSON format used for Service Account Authentication.
rootdirectory	no	The root directory tree in which all registry files are stored. Defaults to the empty string (bucket root). If a prefix is used, the path bucketname/<prefix> has to be pre-created before starting the registry. The prefix is applied to all Google Cloud Storage keys to allow you to segment data in your bucket if necessary.
chunksize	no (default 5242880)	This is the chunk size used for uploading large blobs, must be a multiple of 256*1024.

Note: Instead of a key file you can use Google Application Default Credentials.