Open Cloud Computing Interface

Last updated
Open Cloud Computing Interface
Open Cloud Computing Interface logo.svg
AbbreviationOCCI
StatusPublished
Year started2010
Latest version1.2
Organization Open Grid Forum
Related standards Open Virtualisation Format (OVF), Cloud Data Management Interface (CDMI)
Domain Cloud computing
Website OCCI working group

The Open Cloud Computing Interface (OCCI) is a set of specifications delivered through the Open Grid Forum, [1] [2] for cloud computing service providers. OCCI has a set of implementations that act as proofs of concept. It builds upon World Wide Web fundamentals by using the Representational State Transfer (REST) approach for interacting with services.

Contents

Scope

The aim of the Open Cloud Computing Interface is the development of an open specification and API for cloud offerings. The focus was on Infrastructure-as-a-Service (IaaS) based offerings but the interface can be extended to support Platform and Software as a Service offerings [3] as well.

IaaS is one of three primary segments of the cloud computing industry in which compute, storage and network resources are provided as services. The API is based on a review of existing service-provider functionality and a set of use cases contributed by the working group. [4] OCCI is a boundary API that acts as a service front-end to an IaaS provider’s internal infrastructure management framework. OCCI provides commonly understood semantics, syntax and a means of management in the domain of consumer-to-provider IaaS. It covers management of the entire life-cycle of OCCI-defined model entities and is compatible with existing standards such as the Open Virtualization Format (OVF) and the Cloud Data Management Interface (CDMI). [5] Notably, it serves as an integration point for standardization efforts including Distributed Management Task Force, Internet Engineering Task Force and the Storage Networking Industry Association. [6]

Context

OCCI began in March 2009 and was initially led by RabbitMQ and the Complutense University of Madrid. Today,[ when? ] the working group has over 250 members and includes numerous individuals, industry and academic parties. The OCCI operates under the umbrella of the Open Grid Forum (OGF), [7] using a wiki [8] and a mailing list [9] for collaboration.

Goals

Specific Implementations

They implement specific extensions of OCCI for a particular service: IaaS, PaaS, brokering, etc.

ProjectLink
European Grid Infrastructure OCCI used in its multi-organization community Federated Cloud [10]
OpenNebula Supports OCCI, Amazon Web Services and its internal Sunstone GUI [11] interfaces.
CloudStack Supports OCCI, Amazon Web Services and its own internal interface [12]
OpenStack Supports its own internal interfaces with community-supported OCCI add-on available [13]
SLA@SOI (website)automated infrastructure service-level agreements using OCCI
Italian National Institute of Nuclear Physics (INFN) uses OCCI to power their on-demand computing infrastructure
CompatibleOne (website)An Open Source Cloud service broker

Several implementations have been announced or released. [14] [15]

Generic Implementations (frameworks)

Here are frameworks to build OCCI APIs.

ProjectLanguageProtocolBackends
rOCCI RubyHTTP OpenNebula
pySSF PythonHTTPmultiple
erocci erlang HTTP, HTTPS, XMPP mnesia

Complementing these are a variety of developer tools. [16]

Alternatives

Alternative approaches include the use of the Cloud Infrastructure Management Interface (CIMI) and related standards set from DMTF and the Amazon Web Services interfaces from Amazon. (The latter have not been endorsed by any known Standards organization).

OpenNebula conducted a survey [17] of their users in which the results showed, 38% do not expose cloud APIs, their users only interface through the Sunstone GUI, 36% mostly use the Amazon Web Services API, and 26% mostly use the OpenNebula’s OCCI API or the OCCI API offered by rOCCI. [18]

See also

Related Research Articles

<span class="mw-page-title-main">Distributed Management Task Force</span> Organization

Distributed Management Task Force (DMTF) is a 501(c)(6) nonprofit industry standards organization that creates open manageability standards spanning diverse emerging and traditional IT infrastructures including cloud, virtualization, network, servers and storage. Member companies and alliance partners collaborate on standards to improve interoperable management of information technologies.

In computing, Web-Based Enterprise Management (WBEM) comprises a set of systems-management technologies developed to unify the management of distributed computing environments. The WBEM initiative, initially sponsored in 1996 by BMC Software, Cisco Systems, Compaq Computer, Intel, and Microsoft, is now widely adopted. WBEM is based on Internet standards and Distributed Management Task Force (DMTF) open standards:

Distributed Resource Management Application API (DRMAA) is a high-level Open Grid Forum (OGF) API specification for the submission and control of jobs to a distributed resource management (DRM) system, such as a cluster or grid computing infrastructure. The scope of the API covers all the high level functionality required for applications to submit, control, and monitor jobs on execution resources in the DRM system.

A virtual appliance is a pre-configured virtual machine image, ready to run on a hypervisor; virtual appliances are a subset of the broader class of software appliances. Installation of a software appliance on a virtual machine and packaging that into an image creates a virtual appliance. Like software appliances, virtual appliances are intended to eliminate the installation, configuration and maintenance costs associated with running complex stacks of software.

<span class="mw-page-title-main">Open Grid Forum</span> Computing standards organization

The Open Grid Forum (OGF) is a community of users, developers, and vendors for standardization of grid computing. It was formed in 2006 in a merger of the Global Grid Forum and the Enterprise Grid Alliance. The OGF models its process on the Internet Engineering Task Force (IETF), and produces documents with many acronyms such as OGSA, OGSI, and JSDL.

The Simple API for Grid Applications (SAGA) is a family of related standards specified by the Open Grid Forum to define an application programming interface (API) for common distributed computing functionality.

Infrastructure as a service (IaaS) is a cloud computing service model by means of which computing resources are supplied by a cloud services provider. The IaaS vendor provides the storage, network, servers, and virtualization (which mostly refers, in this case, to emulating computer hardware). This service enables users to free themselves from maintaining an on-premises data center. The IaaS provider is hosting these resources in either the public cloud (meaning users share the same hardware, storage, and network devices with other users), the private cloud (meaning users do not share these resources), or the hybrid cloud (combination of both).

ElasticHosts was a computer service provider based in London, England. It was founded in March 2008, and closed on 30 June 2020. It provided a cloud computing service, which used ten data centres; in the United Kingdom, Netherlands, United States, Canada, Hong Kong and Australia.

Kaavo is a cloud computing management company. Kaavo was founded in November 2007 in the U.S. Kaavo pioneered top-down application-centric management of cloud infrastructure across public, private, and hybrid clouds.

gUSE Grid computing framework

The Grid and Cloud User Support Environment (gUSE), also known as WS-PGRADE /gUSE, is an open source science gateway framework that enables users to access grid and cloud infrastructures. gUSE is developed by the Laboratory of Parallel and Distributed Systems (LPDS) at Institute for Computer Science and Control (SZTAKI) of the Hungarian Academy of Sciences.

<span class="mw-page-title-main">OpenStack</span> Cloud computing software

OpenStack is a free, open standard cloud computing platform. It is mostly deployed as infrastructure-as-a-service (IaaS) in both public and private clouds where virtual servers and other resources are made available to users. The software platform consists of interrelated components that control diverse, multi-vendor hardware pools of processing, storage, and networking resources throughout a data center. Users manage it either through a web-based dashboard, through command-line tools, or through RESTful web services.

Deltacloud is an application programming interface (API) developed by Red Hat and the Apache Software Foundation that abstracts differences between cloud computing implementations. It was announced on September 3, 2009.

<span class="mw-page-title-main">OpenNebula</span> Cloud-computing platform for managing heterogeneous distributed infrastructure

OpenNebula is an open source cloud computing platform for managing heterogeneous data center, public cloud and edge computing infrastructure resources. OpenNebula manages on-premise and remote virtual infrastructure to build private, public, or hybrid implementations of Infrastructure as a Service and multi-tenant Kubernetes deployments. The two primary uses of the OpenNebula platform are data center virtualization and cloud deployments based on the KVM hypervisor, LXD/LXC system containers, and AWS Firecracker microVMs. The platform is also capable of offering the cloud infrastructure necessary to operate a cloud on top of existing VMware infrastructure. In early June 2020, OpenNebula announced the release of a new Enterprise Edition for corporate users, along with a Community Edition. OpenNebula CE is free and open-source software, released under the Apache License version 2. OpenNebula CE comes with free access to patch releases containing critical bug fixes but with no access to the regular EE maintenance releases. Upgrades to the latest minor/major version is only available for CE users with non-commercial deployments or with significant open source contributions to the OpenNebula Community. OpenNebula EE is distributed under a closed-source license and requires a commercial Subscription.

Wakame-vdc is an IaaS cloud computing framework, facilitating the provisioning and management of a heterogeneous virtualized infrastructure. Wakame-vdc virtualizes the entire data center; servers, storage, and networking. Wakame-vdc is managed via a native Web Interface, the Wakame-vdc CLI, or the powerful Wakame-vdc API.

Nimbula was a computer software company that existed from 2008 to 2017. It developed software for the implementation of public and private cloud computing environments.

GridRPC in distributed computing, is Remote Procedure Call over a grid. This paradigm has been proposed by the GridRPC working group of the Open Grid Forum (OGF), and an API has been defined in order for clients to access remote servers as simply as a function call. It is used among numerous Grid middleware for its simplicity of implementation, and has been standardized by the OGF in 2007. For interoperability reasons between the different existing middleware, the API has been followed by a document describing good use and behavior of the different GridRPC API implementations. Works have then been conducted on the GridRPC Data Management, which has been standardized in 2011.

<span class="mw-page-title-main">FUJITSU Cloud IaaS Trusted Public S5</span> Cloud computing platform

FUJITSU Cloud IaaS Trusted Public S5 is a Fujitsu cloud computing platform that aims to deliver standardized enterprise-class public cloud services globally. It offers Infrastructure-as-a-Service (IaaS) from Fujitsu's data centres to provide computing resources that can be employed on-demand and suited to customers' needs.

CloudStack is open-source Infrastructure-as-a-Service cloud computing software for creating, managing, and deploying infrastructure cloud services. It uses existing hypervisor platforms for virtualization, such as KVM, VMware vSphere, including ESXi and vCenter, XenServer/XCP and XCP-ng. In addition to its own API, CloudStack also supports the Amazon Web Services (AWS) API and the Open Cloud Computing Interface from the Open Grid Forum.

Network functions virtualization (NFV) is a network architecture concept that leverages IT virtualization technologies to virtualize entire classes of network node functions into building blocks that may connect, or chain together, to create and deliver communication services.

Cloud Infrastructure Management Interface (CIMI) is an open standard API specification for managing cloud infrastructure.

References

  1. "Open Cloud Computing Interface | Open Standard | Open Community". occi-wg.org. Retrieved 2021-11-22.
  2. The “Open” Cloud is Coming
  3. A. Edmonds, T. Metsch, and A. Papaspyrou, "Open Cloud Computing Interface in Data Management-related Setups," Springer Grid and Cloud Database Management, pp. 1–27, Jul. 2011.
  4. "OCCI Use Cases" (PDF).
  5. "An Open, Interoperable Cloud".
  6. "OCCI and SNIA" (PDF).
  7. "New OGF Working Group to Create an API for Cloud Computing". Archived from the original on 2011-07-18. Retrieved 2009-05-14.
  8. OCCI Wiki
  9. "occi-wg Info Page". www.ogf.org. Retrieved 2021-11-22.
  10. "EGI Federated Cloud" . Retrieved Feb 26, 2014.
  11. "OpenNebula - Flexible Enterprise Cloud Made Simple". archives.opennebula.org. Retrieved 2021-11-22.
  12. "OCCI Interface to CloudStack" . Retrieved Feb 26, 2014.
  13. "OCCI Nova Interface to openStack". GitHub . Retrieved Feb 26, 2014.
  14. "Open Cloud Computing Interface | Implementations". occi-wg.org. Retrieved 2021-11-22.
  15. Presentation on Cloud Standards Interoperability: Status Update on OCCI and CDMI Implementations at the Workshop on Science Agency Uses of Clouds and Grids
  16. "Open Cloud Computing Interface | Tools". occi-wg.org. Retrieved 2021-11-22.
  17. "OpenNebula Cloud API: Amazon, OGF OCCI, OpenStack, Google Cloud, DMTF CIMI or vCloud? - OpenNebula – Open Source Cloud & Edge Computing Platform". opennebula.io. Retrieved 2021-11-22.
  18. gwdg/rOCCI-server, Gesellschaft für wissenschaftliche Datenverarbeitung mbH Göttingen, 2017-04-10, retrieved 2021-11-22