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seo Simplifying Access Control in Google Cloud Storage 2013

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By Navneet Joneja, Product Manager

Google Cloud Storage is a robust, high-performance service that enables developers and businesses to use Google’s infrastructure to power their data. Today, we’re announcing a new feature that makes it even easier to control and share your data.

Per-Bucket Default Object ACLs

Customers building a wide variety of applications have asked us for an easier mechanism to control the permissions granted on newly created objects. Now you can define your access control policy for a bucket once by specifying a Default Object ACL for any bucket, and we’ll automatically apply that ACL to any object without an explicitly defined ACL. You can always override the default by providing a canned ACL when you upload the object or by updating the object’s ACL afterwards. This mechanism simplifies wide variety of use cases, including data sharing, controlled-access data sets and corporate drop-boxes.

New buckets without Default ACLs

After analyzing how customers use our service, we’ve also decided to make a few small changes to the behavior of buckets that have no explicit default object ACL. Effective today, new buckets are created with an implied project-private default object ACL. In other words, project editors and owners will have FULL_CONTROL access to new objects, and project viewers will have READ access to them. This change better aligns the default behavior with how our customers use storage. You can change a bucket’s default object ACL at any time after creating the bucket.

Existing buckets have an effective default object ACL of "private", and they will continue to work as they always have until and unless you specify a new default object ACL for them.


Navneet Joneja loves being at the forefront of the next generation of simple and reliable software infrastructure, the foundation on which next-generation technology is being built. When not working, he can usually be found dreaming up new ways to entertain his intensely curious one-year-old.

Posted by Scott Knaster, Editor
2013, By: Seo Master

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