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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>I would like to present for discussion a statement on the scope and projects that are considered core to OpenStack in the short term (2011). Additionally, this is a proposal to “formalize” how OpenStack includes and associates projects that are closely tied to the project but not part of the core.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Why is this important to discuss? I believe it drives conversations about what to implement (priorities), how to implement (in Python in the core, through an extension mechanism, or via a published API). It is also important that the community is relatively on the same page about what OpenStack is, and what is outside the charter.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Once the community has reached consensus the Project Oversight Board should review and publish as part of the overall project charter.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Key concepts (proposed):<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>OpenStack is scoped in the short term (ie. today and through 2011) to the following <u>core</u> components (note this is subject to modification by the Project Oversight Committee):<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l2 level1 lfo5'><![if !supportLists]><span style='font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>Cloud and Automation Infrastructure (Nova)<o:p></o:p></p><p class=MsoListParagraph style='margin-left:1.0in;text-indent:-.25in;mso-list:l2 level2 lfo5'><![if !supportLists]><span style='font-family:"Courier New"'><span style='mso-list:Ignore'><span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>Virtual Machine Provisioning and Management (Compute)<o:p></o:p></p><p class=MsoListParagraph style='margin-left:1.0in;text-indent:-.25in;mso-list:l2 level2 lfo5'><![if !supportLists]><span style='font-family:"Courier New"'><span style='mso-list:Ignore'><span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>Virtual Image Management and Tools (Glance)<o:p></o:p></p><p class=MsoListParagraph style='margin-left:1.0in;text-indent:-.25in;mso-list:l2 level2 lfo5'><![if !supportLists]><span style='font-family:"Courier New"'><span style='mso-list:Ignore'><span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>Virtual Volume Provisioning and Management (Block Storage)<o:p></o:p></p><p class=MsoListParagraph style='margin-left:1.0in;text-indent:-.25in;mso-list:l2 level2 lfo5'><![if !supportLists]><span style='font-family:"Courier New"'><span style='mso-list:Ignore'><span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>Virtual Network Provisioning and Management (Network)<o:p></o:p></p><p class=MsoListParagraph style='margin-left:1.0in'><o:p> </o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l2 level1 lfo5'><![if !supportLists]><span style='font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>Large Scale Data Storage and Processing (Swift)<o:p></o:p></p><p class=MsoListParagraph style='margin-left:1.0in;text-indent:-.25in;mso-list:l2 level2 lfo5'><![if !supportLists]><span style='font-family:"Courier New"'><span style='mso-list:Ignore'><span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>Highly Available Object Storage<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>The core projects are under project and governance control of the OpenStack open source project. These components will make up the OpenStack distribution packages that can be picked up by downstream distributions (such as Ubuntu). In order to ensure that there is ubiquitous distribution of the core OpenStack projects the development languages/environments will be limited to C, C++, and Python (other languages/runtimes that are ubiquitously available times might be considered by the POC in the future).<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>OpenStack core projects will be presented as a series of services and will follow a common and agreed to service architecture. This will include:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo6'><![if !supportLists]><span style='font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>A public RESTful API<o:p></o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo6'><![if !supportLists]><span style='font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>A private RESTful management API<o:p></o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo6'><![if !supportLists]><span style='font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>Optionally, a pub/sub notification interface<o:p></o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo6'><![if !supportLists]><span style='font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>An extension interface to allow specific service behaviors to be plugged in<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><img width=448 height=301 id="_x0000_i1026" src="cid:image001.jpg@01CBA832.2F1F9060"><o:p></o:p></p><p class=MsoListParagraph><o:p> </o:p></p><p class=MsoListParagraph style='margin-left:0in'>Proprietary or open source modules may be plugged into the extension interface to provide deployment specific features and functionality. For example: OpenStack will provide a general interface for elastic block storage to the Compute nodes. A vendor, contractor, or hoster may plug a specific implementation of block storage under the service, i.e. proprietary interface to NetApp storage, and interface to Sheepdog block storage, etc.<o:p></o:p></p><p class=MsoListParagraph style='margin-left:0in'><o:p> </o:p></p><p class=MsoListParagraph style='margin-left:0in'>These extension modules have no defined OpenStack requirements, save they conform to the defined extension interface for the service. Language selection, distribution models, source license, etc. are all defined and controlled by the implementer(s).<o:p></o:p></p><p class=MsoListParagraph style='margin-left:0in'><o:p> </o:p></p><p class=MsoListParagraph style='margin-left:0in'>Note that the “public” service API’s are not necessarily exposed to OpenStack developers directly. For instance, the programming model for Nova will present a singular API endpoint, yet may expose Virtual Image or Virtual Volume operations. This aggregation of API functionality should be consistent across the OpenStack projects to allow a consistent programming model and, ultimately, is under the direction of the POC.<o:p></o:p></p><p class=MsoListParagraph style='margin-left:0in'><o:p> </o:p></p><p class=MsoListParagraph style='margin-left:0in'>In addition, there will be a concept of “affiliated” or “compatible” services for OpenStack that live outside of the core projects. These will generally be cloud services that extend the functionality of the base (core) OpenStack distribution. It is encouraged that these services be built using the same core service architectural concepts. Since these projects live outside of the core OpenStack projects they have the following characteristics:<o:p></o:p></p><p class=MsoListParagraph style='margin-left:0in'><o:p> </o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l1 level1 lfo7'><![if !supportLists]><span style='mso-list:Ignore'>1.<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]>They are not subject to the OpenStack governance model or process. The governance will be the responsibility of the contributor(s).<o:p></o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l1 level1 lfo7'><![if !supportLists]><span style='mso-list:Ignore'>2.<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]>The responsibility for distribution will be on the contributor(s). These are optional OpenStack projects and may or may not be picked up by the downstream distributions.<o:p></o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l1 level1 lfo7'><![if !supportLists]><span style='mso-list:Ignore'>3.<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]>OpenStack does not impose any language or runtime constraints on these services. The contributors need to weigh their runtime environment requirements against ease of development and desired ubiquity of distribution and deployment.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Examples of potential services include Database, Platform, Monitoring, etc. implementations.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>A graphical view:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><img width=691 height=449 id="Picture_x0020_15" src="cid:image002.jpg@01CBA832.2F1F9060"><o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:black'><o:p> </o:p></span></p></div></body></html>