This service exists to satisfy Google Cloud requirements for internal deployment of rclone, a service for managing cloud providers via command line interface.
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Rclone is a command-line program to manage files on cloud storage. It is a feature-rich alternative to cloud vendors' web storage interfaces. Over 70 cloud storage products support rclone including S3 object stores, business & consumer file storage services, as well as standard transfer protocols.
Users call rclone "The Swiss army knife of cloud storage", and "Technology indistinguishable from magic".
More about rclone can be read on its official website: https://rclone.org/