OCCI 1.2 Open Cloud Computing Interface – Service Level Agreements

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OCCI 1.2 Open Cloud Computing Interface – Service Level Agreements

SCOPE

This document, part of a document series produced by the OCCI working group within the Open Grid Forum (OGF), provides a high-level definition of a Protocol and API. The document is based upon previously gathered requirements and focuses on the scope of important capabilities required to support modern service offerings.
 
The Open Cloud Computing Interface (OCCI) is a RESTful Protocol and API for all kinds of management tasks. OCCI was originally initiated to create a remote management API for IaaS1 model-based services, allowing for the development of interoperable tools for common tasks including deployment, autonomic scaling and monitoring. It has since evolved into a flexible API with a strong focus on interoperability while still offering a high degree of extensibility. The current release of the Open Cloud Computing Interface is suitable to serve many other models in addition to IaaS, including PaaS and SaaS.
 
In order to be modular and extensible the current OCCI specification is released as a suite of complementary documents, which together form the complete specification. The documents are divided into four categories consisting of the OCCI Core, the OCCI Protocols, the OCCI Renderings and the OCCI Extensions.

  • The OCCI Core specification consists of a single document defining the OCCI Core Model. OCCI interaction occurs through renderings (including associated behaviors) and is expandable through extensions.
  • The OCCI Protocol specifications consist of multiple documents, each describing how the model can be interacted with over a particular protocol (e.g. HTTP, AMQP, etc.). Multiple protocols can interact with the same instance of the OCCI Core Model.
  • The OCCI Rendering specifications consist of multiple documents, each describing a particular rendering of the OCCI Core Model. Multiple renderings can interact with the same instance of the OCCI Core Model and will automatically support any additions to the model which follow the extension rules defined in OCCI Core.
  • The OCCI Extension specifications consist of multiple documents, each describing a particular extension of the OCCI Core Model. The extension documents describe additions to the OCCI Core Model defined within the OCCI specification suite.

The current specification consists of seven documents. This specification describes version 1.2 of OCCI and is backward compatible with 1.1.
 
This document, part of a document series, produced by the OCCI working group within the Open Grid Forum (OGF), provides a high-level definition of a Protocol and API in relation with the Service Level Agreements extension of the OCCI Core Model.
 
The OCCI Service Level Agreements (OCCI SLAs) document describes how the OCCI Core Model can be extended and used to implement a Service Level Agreement management API. This API allows for the creation and management of resources related with the realization of agreements between an OCCI-enabled cloud service provider and potential consumers of the provider’s resources. The introduced types and Mixins defined in this OCCI SLAs document are the following:
 
Agreement: This resource represents the Service Level Agreement between the provider and the consumer. It includes the basic information for this contract and with the appropriate extensions (Mixins) it can be populated with further information. To this end, we introduce the AgreementTemplate and the AgreementTerms Mixins which complement the SLAs with template tagging and terms specification respectively.
AgreementLink: This is a link entity that associates an Agreement instance with any other Resource instance.

WORKING GROUP
LATEST PUBLICATION DATE
October 2016
LINK TO THE LATEST PUBLISHED VERSION
WIKI WATCH

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