OpenStack Cloud Application Development E-Book

Scott Adkins

• Herausgeber: John Wiley & Sons
• Kategorie: Wissenschaft und neue Technologien
• Sprache: Englisch

Seitenzahl: 299

Veröffentlichungsjahr: 2015

Beschreibung

Leverage the power of OpenStack to develop scalable applications with no vendor lock-in OpenStack Cloud Application Development is a fast-paced, professional book for OpenStack developers, delivering comprehensive guidance without wasting time on development fundamentals. Written by experts in the OpenStack community from Infoblox, Gigaspaces, GoDaddy, and Comcast, this book shows you how to work effectively and efficiently within the OpenStack platform to develop large, scalable applications without worrying about underlying hardware. Follow along with an OpenStack build that illustrates how and where each technology comes into play, as you learn expert tips and best practices that make your product stronger. Coverage includes OpenStack service primitives, networking within the OpenStack Ecosystem, deployment of Virtualized Network Functions for Enterprises, containers, data protection, and much more. If you need to get on board quickly, this professional book is your ideal roadmap to OpenStack development. * Understand all aspects of OpenStack technologies * Follow an example build to drill down into critical elements * Learn the OpenStack best practices and insider tips * Leverage the full capability of IaaS at a professional pace OpenStack is supported by dozens of major technology companies, compatible with Amazon Web Services, and can be used alongside or on top of VMWare vSphere and other similar technologies. It frees developers from the confines of hardware and vendor lock-in while providing a reliable, fast, and easy platform for developing scalable cloud applications. OpenStack Cloud Application Development is an expert-led guide to getting the most out of OpenStack, designed specifically for the professional developer.

Leseprobe

CONTENTS

INTRODUCTION

WHO THIS BOOK IS FOR

WHAT THIS BOOK COVERS

HOW THIS BOOK IS STRUCTURED

WHAT YOU NEED TO USE THIS BOOK

CONVENTIONS

SOURCE CODE

ERRATA

P2P.WROX.COM

PART I OPENSTACK OVERVIEW

1 INTRODUCING OPENSTACK

WHAT IS CLOUD COMPUTING?

WHY SHOULD I CARE?

UNDERSTANDING THE ARCHITECTURE

SUMMARY

2 UNDERSTANDING THE OPENSTACK ECOSYSTEM: CORE PROJECTS

IDENTITY

COMPUTE

STORAGE

IMAGING

DASHBOARD

NETWORKING

BRINGING IT ALL TOGETHER

SUMMARY

3 UNDERSTANDING THE OPENSTACK ECOSYSTEM: ADDITIONAL PROJECTS

OPENSTACK HEAT

OPENSTACK DATABASE AS A SERVICE: TROVE

DESIGNATE: DNS AS A SERVICE

MAGNUM

MURANO: APPLICATION AS A SERVICE

CEILOMETER: TELEMETRY AS A SERVICE

SUMMARY

PART II DEVELOPING AND DEPLOYING APPLICATIONS WITH OPENSTACK

4 APPLICATION DEVELOPMENT

CONVERTING A LEGACY APP TO AN OPENSTACK APP

BUILDING APPS FROM SCRATCH

OPENSTACK APP DESCRIPTION AND DEPLOYMENT STRATEGIES

SUMMARY

5 IMPROVING ON THE APPLICATION

FAILURE SCENARIOS

HOSTNAME AND IP ADDRESSING

SCALING

IMPROVING OUR APPLICATION

SUMMARY

6 DEPLOYING THE APPLICATION

BARE METAL, VIRTUAL MACHINES, AND CONTAINERS

ORCHESTRATION AND CONFIGURATION MANAGEMENT

MONITORING AND METERING

ELASTICITY

UPDATING AND PATCHING

SUMMARY

BOOK WRAP UP

TITLE PAGE

COPYRIGHT

ABOUT THE AUTHOR

ABOUT THE TECHNICAL EDITORS

CREDITS

ACKNOWLEDGMENTS

EULA

List of Illustrations

Chapter 1

Figure 1.1

Figure 1.2

Figure 1.3

Figure 1.4

Figure 1.5

Figure 1.6

Chapter 2

Figure 2.1

Figure 2.2

Figure 2.3

Figure 2.4

Figure 2.5

Figure 2.6

Figure 2.7

Figure 2.8

Figure 2.9

Figure 2.10

Figure 2.11

Figure 2.12

Figure 2.13

Chapter 3

Figure 3.1

Figure 3.2

Figure 3.3

Figure 3.4

Figure 3.5

Figure 3.6

Figure 3.7

Figure 3.8

Figure 3.9

Figure 3.10

Figure 3.11

Figure 3.12

Figure 3.13

Chapter 4

Figure 4.1

Figure 4.2

Figure 4.3

Figure 4.4

Figure 4.5

Figure 4.6

Chapter 5

Figure 5.1

Figure 5.2

Figure 5.3

Figure 5.4

Figure 5.5

Figure 5.6

Figure 5.7

Figure 5.8

Figure 5.9

Figure 5.10

Chapter 6

Figure 6.1

Figure 6.2

Figure 6.3

Figure 6.4

Figure 6.5

Guide

Cover

Table of Contents

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INTRODUCTION

OpenStack is a set of software packages that manage virtualized resources, including computing, networking, and storage. It enables you to create and destroy virtual machines, connect them together with private networks, provide network-based storage, and make them available to the rest of your network and the world. OpenStack provides consistent, uniform API services for all of this, hiding hypervisor and vendor specific details from the applications that are using the APIs. It also provides a user interface, built on top of the same APIs, that allows users to see and manage their virtual resources.

WHO THIS BOOK IS FOR

This book is for application developers that are interested in learning more about OpenStack and how it will transform the application design and development process. It is for someone who is new to the cloud environment, who wants a broad understanding of that environment, as well as a deep enough knowledge to make practical use of OpenStack.

WHAT THIS BOOK COVERS

This book will provide a broad understanding of cloud concepts and how they fit into the life of an application developer. It will drill in deeply to the OpenStack services that are most important to an application developer, and show you how these services will change not only how you deploy applications, but also how you design them. It will provide detailed information on each service, and provide examples of how each service may be used by an application developer.

HOW THIS BOOK IS STRUCTURED

This book was written in two parts. Part 1 provides an overview of OpenStack. The purpose of this part is to lay the groundwork, covering all of the OpenStack technologies and what is most important.

Part 2 takes the reader through developing and deploying applications with OpenStack. In this part you will build an example on top of OpenStack that drills down much deeper on the technologies, provides tips, and helps you learn about OpenStack through the lens of these same technologies.

Here is a list of the chapters:

Part I: OpenStack Overview

Chapter 1: Introduction to OpenStack

Chapter 2: Understanding the OpenStack Ecosystem: Core Projects

Chapter 3: Understanding the OpenStack Ecosystem: Additional Projects

Part II: Developing and Deploying Applications with OpenStack

Chapter 4: Application Development

Chapter 5: Improving on the Application

Chapter 6: Deploying the Application

WHAT YOU NEED TO USE THIS BOOK

You should understand the basics of application development - how applications are composed of multiple servers like web servers, application servers, and database servers. You do not need any cloud-specific knowledge, though you should be aware of what virtualization and virtual machines are, and have a basic understanding of networks.

CONVENTIONS

To help you get the most from the text and keep track of what’s happening, we’ve used a number of conventions throughout the book.

Examples that you can download and try out for yourself generally appear in a box like this:

EXAMPLE TITLE

This section gives a brief overview of the example.

Source

This section includes the source code.

Source code Source code Source code

Output

This section lists the output:

Example output Example output Example output

NOTENotes indicates notes, tips, hints, tricks, or and asides to the current discussion.

As for styles in the text:

We

highlight

new terms and important words when we introduce them.

We show code within the text like so:

persistence.properties

.

SOURCE CODE

As you work through the examples in this book, you may choose either to type in all the code manually, or to use the source code files that accompany the book. All the source code used in this book is available for download at www.wrox.com. Specifically for this book, the code download is on the Download Code tab at:

www.wrox.com/go/openstackcloudappdev

and at:

https://github.com/johnbelamaric/openstack-appdev-book

You can also search for the book at www.wrox.com by ISBN (the ISBN for this book is 978-1-119-19431-6) to find the code. And a complete list of code downloads for all current Wrox books is available at www.wrox.com/dynamic/books/download.aspx.

NoteBecause many books have similar titles, you may find it easiest to search by ISBN; this book’s ISBN is 978-1-119-19431-6.

Once you download the code, just decompress it with your favorite compression tool. Alternately, you can go to the main Wrox code download page at www.wrox.com/dynamic/books/download.aspx to see the code available for this book and all other Wrox books.

ERRATA

We make every effort to ensure that there are no errors in the text or in the code. However, no one is perfect, and mistakes do occur. If you find an error in one of our books, like a spelling mistake or faulty piece of code, we would be very grateful for your feedback. By sending in errata, you may save another reader hours of frustration, and at the same time, you will be helping us provide even higher quality information.

To find the errata page for this book, go to

www.wrox.com/go/openstackcloudappdev

And click the Errata link. On this page you can view all errata that has been submitted for this book and posted by Wrox editors.

If you don’t spot “your” error on the Book Errata page, go to www.wrox.com/contact/techsupport.shtml and complete the form there to send us the error you have found. We’ll check the information and, if appropriate, post a message to the book’s errata page and fix the problem in subsequent editions of the book.

P2P.WROX.COM

For author and peer discussion, join the P2P forums at http://p2p.wrox.com. The forums are a Web-based system for you to post messages relating to Wrox books and related technologies and interact with other readers and technology users. The forums offer a subscription feature to e-mail you topics of interest of your choosing when new posts are made to the forums. Wrox authors, editors, other industry experts, and your fellow readers are present on these forums.

At http://p2p.wrox.com, you will find a number of different forums that will help you, not only as you read this book, but also as you develop your own applications. To join the forums, just follow these steps:

Go to

http://p2p.wrox.com

and click the Register link.

Read the terms of use and click Agree.

Complete the required information to join, as well as any optional information you wish to provide, and click Submit.

You will receive an e-mail with information describing how to verify your account and complete the joining process.

NOTEYou can read messages in the forums without joining P2P, but in order to post your own messages, you must join.

Once you join, you can post new messages and respond to messages other users post. You can read messages at any time on the Web. If you would like to have new messages from a particular forum e-mailed to you, click the Subscribe to this Forum icon by the forum name in the forum listing.

For more information about how to use the Wrox P2P, be sure to read the P2P FAQs for answers to questions about how the forum software works, as well as many common questions specific to P2P and Wrox books. To read the FAQs, click the FAQ link on any P2P page.

PART IOpenStack Overview

CHAPTER 1: INTRODUCING OPENSTACK

CHAPTER 2: UNDERSTANDING THE OPENSTACK ECOSYSTEM: CORE PROJECTS

CHAPTER 3: UNDERSTANDING THE OPENSTACK ECOSYSTEM: ADDITIONAL PROJECTS

1Introducing OpenStack

WHAT’S IN THIS CHAPTER?                   

Models of cloud computing

Relevance of cloud computing to application developers

Why OpenStack is a good cloud platform choice

How OpenStack is put together

WHAT IS CLOUD COMPUTING?

There is so much hype around cloud computing that it is often difficult to get a clear sense of what anyone means by those words. Is it just virtualization? Is it Software-as-a-Service (SaaS), such as Microsoft’s Office 365 and Salesforce.com? Or is it the ability to get a virtual machine instantly from Amazon Web Services (AWS) or Azure? And what about online storage such as Dropbox?