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Problem Statement

Currently CloudStack does not offer a flexible pluggable framework for users to easily integrate and configure any 3rd-party object stores for such backup services as registering templates, taking snapshots, etc. Along with Edison's recent refactored storage subsystem 2.0, we are proposing to develop a storage backup object store plugin framework to allow CloudStack to systematically manage and configure various types of backup data stores from different vendors.
With this new plugin framework, we would like to achieve following functionalities:

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In this new refactored backup datastore plugin framework, we have clearly defined those pluggable service interfaces, such as PrimaryDataStore, ImageDataStore, DataMotionStrategy, AutoScaleStrategy, etc, so that different storage providers can develop their vendor-specific plugins based on the well-defined contracts that can be seemlessly managed by CloudStack orchestration.

DB Schema

This is the new DB model related to data store.

The following are deprecated tables:

• template_host_ref
• template_s3_ref
• template_swift_ref

API Changes

Following will be the changes in their behavior post introduction of Object Store plugin framework:

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