Introduction
This wiki explains the current format of the data which refers to the could object and the proposed design to make it cloud agnostic.
Background & Problem Statement
The sunbird platform uses cloud storage in various scenarios to save and access different types of files. The metadata of the functional objects stores the references (URLs) of the respective files to link and understand and provide access to read, modify or delete them.
For example, the content object in the Sunbird Knowlg building block stores the URLs of different files in its metadata to refer to the actual content.
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All these URLs of the files are directly stored in the respective databases in most of the scenarios. The data in this format makes it difficult to switch from one cloud service provider (CSP) to another CSP.
Key Design Problems
Avoid the cloud store specific reference in data and metadata.
Generalise the base path usage for any CSP.