Open Stack

Hi,

Let’s have regular meeting today starting UTC1300 at #openstack-meeting

Agenda:
Progress of To-do list: https://etherpad.openstack.org/p/TricircleToDo
Discussion of stateless design.


Best Regards
Chaoyi Huang ( Joe Huang )

From: joehuang [mailto:joehuang at huawei.com]
Sent: Tuesday, December 08, 2015 1:18 PM
To: OpenStack Development Mailing List (not for usage questions)
Subject: [openstack-dev] [tricircle]Stateless design proposal for Tricircle project

Hi,

Managing multiple instances of OpenStack is a headache.  Each OpenStack instance is individual silo, with its separate resources, networks, images, etc.

Tricircle, the project aiming to address this headache, a Top (aka cascading) minimalist "OpenStack instance" will manages multiple Bottom (aka cascaded) OpenStack instances. The top will expose OpenStack API to embrace all eco-system built upon OpenStack API. This model and its value has been verified in several production clouds.

Now one stateless design for the Tricircle, the top minimalist "OpenStack instance",  is just proposed in the doc [1]:

The stateless design introduce several components, and fully decoupled with OpenStack services like Nova, Cinder, and the Tricircle plugin will work just like OVN, ODL plugin in Neutron project, the design also try to remove the uuid mapping, status synchronization challenges.

•      Admin API
manage sites(bottom OpenStack instances) and availability zone mapping
retrieve object uuid routing
expose api for maintenance
•      Nova API-GW
an standalone web service to receive all nova api request, and routing the request to regarding bottom OpenStack according to Availability Zone ( during creation ) or resource id ( during operation and query ).
work as stateless service, and could run with processes distributed in multi-hosts.
•      Cinder API-GW
an standalone web service to receive all cinder api request, and routing the request to regarding bottom OpenStack according to Availability Zone ( during creation ) or resource id ( during operation and query ).
work as stateless service, and could run with processes distributed in multi-hosts.
•      XJob
receive and process cross OpenStack functionalities and other async. jobs from message bus for example, when booting a VM for the first time for the project, router, security group rule, FIP and other resources may have not already been created in the bottom site, but it’s required. Not like network, security group, ssh key etc resources they must be created before a VM booting, these resources could be created in async.way to accelerate response for the first VM booting request
cross OpenStack networking also will be done in async. jobs
Any of Admin API, Nova API-GW, Cinder API-GW, Neutron Tricircle plugin could send an async. job to XJob through message bus with RPC API provided by XJob
•      Neutron Tricircle plugin
Just like OVN, ODL Neutron plugin, the tricircle plugin serve for multi-site networking purpose, including interaction with DCI SDN controller, will use ML2 mechanism driver interface to call DCI SDN controller, especially for cross OpenStack provider multi-segment L2 networking.
•      DB
Tricircle can have its own database to store sites, fake nodes, availability zone mapping, jobs, resource routing table

A plan to do PoC for this idea is working on the experiment branch of Tricircle [2][4], once the result give us positive feedback, the work will be moved to the master branch.

Welcome to join the adventure, contribute your power in the review, design  writing source code, maintaining infrastructure, testing, bug fix, the weekly meeting[3]..., all work just starts[4].

[1] design doc: https://docs.google.com/document/d/18kZZ1snMOCD9IQvUKI5NVDzSASpw-QKj7l2zNqMEd3g
[2] Stateless design branch: https://github.com/openstack/tricircle/tree/experiment
[3] weekly meeting: #openstack-meeting on every Wednesday starting from UTC 13:00
[4] To do list is in the etherpad: https://etherpad.openstack.org/p/TricircleToDo

Best Regards
Chaoyi Huang ( Joe Huang )

From: joehuang
Sent: Wednesday, December 02, 2015 2:37 PM
To: 'Zhipeng Huang'; OpenStack Development Mailing List (not for usage questions); caizhiyuan (A); Irena Berezovsky; Orran Krieger; Mohammad Badruzzaman; 홍석찬
Subject: [openstack-dev][tricircle] weekly meeting of Dec.2

Hi,

Let’s have regular meeting today starting UTC1300 at #openstack-meeting.

The networking proposal is updated in the document, and a proposal for stateless PoC also was updated in the doc.
https://docs.google.com/document/d/18kZZ1snMOCD9IQvUKI5NVDzSASpw-QKj7l2zNqMEd3g/edit?usp=sharing

Best Regards
Chaoyi Huang ( Joe Huang )

From: Zhipeng Huang [mailto:zhipengh512 at gmail.com]
Sent: Wednesday, November 25, 2015 5:44 PM
To: OpenStack Development Mailing List (not for usage questions); joehuang; caizhiyuan (A); Irena Berezovsky; Orran Krieger; Mohammad Badruzzaman; 홍석찬
Subject: Re: [openstack-dev][tricircle]Tokyo Summit Summary

Hi All,

We will hold our regular meeting today starting UTC1300 at #openstack-meeting, and we will chat about the new architecture discussed during the Tokyo Design Summit

On Sat, Nov 21, 2015 at 10:20 AM, Zhipeng Huang <zhipengh512 at gmail.com<mailto:zhipengh512 at gmail.com>> wrote:
Hi Team,

We had very great sessions re Tricircle at Tokyo Summit, both main conference [1] and design summit [2].

After the summit the core team dived into new architecture design as discussed in the design summit session [3] , therefore there had been sorta radio silent, but rest assure the work is continuing :)

We will still hold our weekly meeting at openstack-meeting every Wed from UTC 1300 to UTC 1400, where we will discuss problems and ideas in the developments. There would be no specific agenda assigned, except for the last week meeting every month where we will deal with major problems with focus.

Other than the everyday dev discuz at openstack-meeting, we will have architectural/functional/conceptual discussions at openstack-tricircle at earlier time each week, where we will bash ideas on how to proceed the project.

I'm also contemplating google hangout for openstack-meeting sessions so people could directly communicate. I will send out detailed info about this later on :)

Anyways wish yall have a great weekend, and meet you guys next week at the meeting. At the mean time check out the new arch proposal done by the core team [3].

[1] https://openstacksummitoctober2015tokyo.sched.org/event/49sw/multisite-openstack-deep-dive
[2] https://wiki.openstack.org/wiki/Design_Summit/Mitaka/Etherpads#Tricircle
[3] https://wiki.openstack.org/wiki/Tricircle
--
Zhipeng (Howard) Huang

Standard Engineer
IT Standard & Patent/IT Prooduct Line
Huawei Technologies Co,. Ltd
Email: huangzhipeng at huawei.com<mailto:huangzhipeng at huawei.com>
Office: Huawei Industrial Base, Longgang, Shenzhen

(Previous)
Research Assistant
Mobile Ad-Hoc Network Lab, Calit2
University of California, Irvine
Email: zhipengh at uci.edu<mailto:zhipengh at uci.edu>
Office: Calit2 Building Room 2402

OpenStack, OPNFV, OpenDaylight, OpenCompute Aficionado
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