3/2/10 1 © Copyright 2005-2006, XenSource, Inc. All rights ...

04/13/23 1© Copyright 2005-2006, XenSource, Inc. All rights reserved. Xen, XenSource and XenEnterprise are either registered trademarks or trademarks of XenSource Inc. in the United States and/or other countries.

Software Development Kit Webinar

March 20th 2007

Presenter Name Presenter Title

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Overview

• Introduction• Product and Timelines• XenSource Architecture Backgrounder• Management Architecture• Tools for building applications• Summary• Q&A

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Introduction

• Representing XenSource

• Shishir Pardikar - Product management• Carl Fisher - Product Management• Rich Persaud - Sales• Richard Sharp - Engineering• Dave Scott - Engineering

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Product Timelines

• XenEnterprise product codenamed Rio• SDK webinar – March 20th(today)• SDK preview – Web Download (today)

• http://tx.downloads.xensource.com/products/sdk/index.php

• Update schedule to Partners – March end• Beta release – Mid May 2007• RTM – End of June 2007

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• Architecture Backgrounder

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Virtualization

• Pre-Virtualization, one OS runs on a Computer• With Virtualization, one Computer runs multiple

OSes• Virtualization decouples OS from Hardware• Creates a Virtual Machine (VM) abstraction• VMs can be

– Provisioned, monitored, moved and modified via software

• Provide a convenient and cost effective management

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Architecture Backgrounder: The Basics

• Xen Hypervisor is a thin software layer

• Abstracts Machine (Host) Hardware

• Allocates Host hardware resources

• “Virtualizes” CPU, Memory, Devices etc.

• Creates multiple “Domains”

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Architecture Backgrounder

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• Rio Management Architecture

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Rio Management Architecture - Goals

• Lightweight

• Enable remote management

• Rich and extensible

• Integration with enterprise management

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Rio Management Architecture

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Rio Management Architecture

• Exposes Persistent Object Model

• XML-RPC API to manipulate objects

• Secure remoting with authentication

• Implemented by Xen Agent in Dom0

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Rio Management Architecture

• Utilized by GUI console

• Easy usage provided through CLI

• Language Bindings for tighter integration

• Use XML-RPC directly with any language

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Management Stack

Xenstore Xen-Hypervisor Host Utils

Xen Agent

API Language Bindings

CIM-Providers, CLIs (xe, xm)

Dom 0

Dom 0,Dom U,another PC

XML-RPC API Server

XML-RPC Client

Custom Apps Custom Apps

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API Categories

• Monitoring APIs – Inspect object state, performance

• Actuation APIs– VM lifecycle, product configuration etc.

• More categories to follow….

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• Object Model Basics

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Facilities Provided

• Installation

• VM lifecycle

• Network interfaces management

• Storage management

• Statistics

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Object Model

• Persisted in a database

• Captures interrelationships• e.g. VM <-> Block Device (VBD) <-> disk Image

<VDI>

• Key Objects– Host, VM, VBD, VIF etc.…

• Can represent host clustering

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Important Base Objects

• User – principal executing APIs

• Session – An authenticated API session

• Task – A long running async operation

• Host – A physical Host Machine

• VM – A Virtual machine

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Networking Objects Usage Examples

• Add/delete a Virtual NIC to/from a VM

• Configure a virtual NIC• e.g. Change MAC/IP address

• Connect a VM NIC to a physical NIC

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Storage Objects

• Unify various storage capabilities• Logical Volumes, CDs, files

• Provide a single model for all types

• VM sees them as a Virtual Block Device

• Easy to manage

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• SDK for building applications

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SDK Contents

• XenSource Virtual Appliance– Emulation Server (automatically started)– Language Bindings– Build Environment with c samples– Samples with each language

• C language samples for Linux• C# samples for Windows• Bash scripts that issue CLI commands• Python

• XML-RPC API reference

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C Language Binding Walkthrough

• Per-object type – Sources /SDK/client-examples/c/libxen

• Correlates with API object reference

• Example:– xen_vm.h– xen_vm.c– Corresponds to VM object type in the API reference

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C Language Binding Walkthrough-contd.

• xen_<object>_record• Defines the object and all it’s fields• e.g. xen_host_record, xen_vm_record

• xen_<object>– Opaque reference in session context– Returned via xen_get_by_uuid and xen_get_by_name

• xen_get_xxx and xen_set_xxx• get and set a field

• xen_get_<object>_record• Get the entire record from opaque reference

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C# Language Binding

• /SDK/client-samples/csharp/XenSDK.net/XenAPI.net

• Includes dlls, language binding sources, samples

• Built against .NET 2.0• Renders the API object model• All properties and methods implemented

• e.g. VM.get_name_label,• VM.get_by_uuid

• Can be used from unmanaged code

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Other Samples

• New powerful CLI

• CLI samples wrapped in bash scripts– /SDK/client-samples/bash-cli

• Python samples– /SDK/client-samples/Python

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• Download location

• http://tx.downloads.xensource.com/products/sdk/index.php

• Has SDK ISO and a Readme

• Burn CD using the ISO

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How to Install

• Packaged as a XenEnterprise Virtual Appliance• Runs on XenEnterprise 3.2.0 BETA

– https://xensource.licensetech.com/xenshop/include/XenSource/xs320b1download.htm

• On windows machine– Insert the CD in the drive– Launch XenEnterprise 3.2.0 Console– Choose “Import VM”– Browse to CD ROM– Import

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Summary

• Rich Architecture

• Versatile management stack

• Choice of platforms for ISVs– Write apps on Windows or Linux

• Choice of languages– C, C# and python for starters– Others based on partner/ISV feedback

• [email protected] for questions

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• Please download today

• Give us feedback

• Thank You!

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Questions?