Xen Orchestra: XAPI and XenServer from the web-XPUS13 Lambert

http://xen-orchestra.comVates : Open source solutions

http://vates.fr

Xen Orchestra

Olivier LambertXO Project Leader

[email protected]

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Xen + XAPI from the Web

LinuxCon / Xen User Summit 2013 - http://xen-orchestra.comVates : Open source solutions

http://vates.fr

Plan

1) Why Xen Orchestra?

2) Global design

3) Current state

4) Next steps

5) Conclusion

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Why Xen Orchestra?

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Why Xen Orchestra?

● XO was born because of this question:

'On which host is running my VM, goddammit?'

● Then I searched something which:

– Provides a Web interface for managing Xen

– Gives a global overview of VMs and their hosts

– Makes every day Xen administration easier

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http://vates.fr

Why Xen Orchestra?Timeline

First XO XCP 1.0

2009 2010 2011 2012 2013

XenServer opensourced

XO “reboot”

Project discontinued

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Why Xen Orchestra?The reboot

● Get a simple and neat GUI for Xen

● Enjoy it with latest web technologies

● Embrace and leverage XAPI possibilities

● Driven by Open source (AGPL)

● Company support (Vates)

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Why Xen Orchestra?Ideal specifications

● Accessible from a web browser

● Work out of the box

● Cover everyday Xen administration tasks

● Innovative interface

● Use few resources (bandwidth/cpu/ram)

● Scalable design

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Why Xen Orchestra?What is NOT XO

● NOT a clone of XenCenter (but share the goal)

● NOT a cloud manager (e.g: OpenStack)

● NO specific agent to install on hosts or VMs

● NO complicated stack to install

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Why Xen Orchestra? Existing GUI's for XAPI hosts

● XenCenter: Windows only (Mono?), rich client, no persistence

● Open Xen Manager: XenCenter's clone, rich client, no persistence (last ver: 2010)

● Lot of small and/or dead projects without communities

● Specific projects: VPS vendors, big cloud interfaces (like Cloudstack or OpenStack)

A gap exists for XO

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Global design

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Global designWhy XAPI?

● XenServer have Xen+XAPI

● XAPI available on other distros (Debian/CentOS)

● Most versatile and feature-complete stack (pools...)

● XAPI is the backbone for existing management apps (XenCenter, xe CLI, {Open,Cloud}Stack)

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Global designWhy XAPI?

● Event tracking with progress and notifications: perfect for XO! (always up to date, bandwidth friendly)

● Resource pools

● Storage

● VM lifecycle

● And many more!

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Global designArchitecture

● Modular architecture:– XO-Server: persistence, connections, ACL's...

– XO-Web: interface

● Benefits:– Uncouple interface project from backend

– Change interface or backend painlessly

– And more...

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Global designXO Architecture

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Global designXO Architecture

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Global designExample

XS Master

XS host3

XS host2

XS host 4

XS host 5

Pool 1

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Global designExample (XenCenter)

XS Master

XS host3

XS host2

XS host 4

XS host 5

Pool 1 XenCenterClient 1

XenCenterClient 2

XenCenterClient 3

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Global designExample (XO)

XS Master

XS host3

XS host2

XS host 4

XS host 5

Pool 1

XO

WebClient 1

WebClient 3

WebClient 2

+ cache

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Global designTechnologies

● Rebooted with PHP again● Not great for dealing with servers● XML-RPC bugs in PHP lib● Exterior criticism about this choice

We looked for a better fit

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Global designTechnologies for XO-Server

● Node.js seems promising● Less complexity than PHP● Better maintenance● Adapted design for our needs● Easy to interact with Redis (NoSQL)

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Global designTechnologies for XO-Web

● Single page app (much faster)● Backbone.js (Marionette.js)● WebSocket● Twitter Bootstrap● No more PHP, only JavaScript

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Global designUI Design

● The most challenging part● Data density, diversity and redundancy● 2 parallel choices :

– Traditional solutions (tables) but always “light”

– Innovative design allows more data density

● UI research is a priority

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Global designClassical design

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Global designInnovative design

● Great JS lib: D3.js (http://d3js.org/)● Plenty of examples for dealing data complexity● Mixing symbols for displaying multiples data

And we have a Software ergonomist

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Current state

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Current statePlug and play

● Distributed in xva appliance:– Download

– Import

– Go on its IP in your browser

– That's it!

● No overkill stack for “just” Xen admin

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Current stateFeatures

● Works out the box for XenServer/XAPI hosts:– Tested on Debian+XAPI and XS 6.2

● Overview panel● VMs list● VMs consoles in Firefox● Local users and permissions

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Next steps

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Next stepsShort term (2013)

● Creating and managing VM/storage/network● LDAP compatible backend● Instant report and graphs with RRD's● More innovative views● Distro packaging

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Next stepsMid-term (2014)

● Stable release● Possibility of pro support or sponsoring● Trends (RRD history, workload analysis)● Possibilities with modular architecture:

– Other backend? (only change XO-Server)

– Research projects

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Conclusion

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Conclusion

● Website drained 4k unique visitors in August● Visits from more than 100 countries● Early users are enthusiasts● Expectations are high● Understaffing limits our developing rate

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Thank you!

● Website project: http://xen-orchestra.com● Forum: http://xen-orchestra.com/forum● IRC: #vates on Freenode● Twitter: @vatesfr

Come talk to us after this talk

We'll be available here until Friday

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Xen Orchestra: XAPI and XenServer from the web-XPUS13 Lambert

Technology

Transcript of Xen Orchestra: XAPI and XenServer from the web-XPUS13 Lambert