OpenStack Cloud Application Development

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. INTRODUCTION xi

PART I: OPENSTACK OVERVIEW

CHAPTER 1: INTRODUCING OPENSTACK 3

What Is Cloud Computing? 3

Why Should I Care? 6

Understanding the Architecture 13

Summary 18

CHAPTER 2: UNDERSTANDING THE OPENSTACK ECOSYSTEM: CORE PROJECTS 19

Identity 20

Compute 24

Storage 28

Imaging 34

Dashboard 37

Networking 38

Bringing It All Together 45

Summary 48

CHAPTER 3: UNDERSTANDING THE OPENSTACK ECOSYSTEM: ADDITIONAL PROJECTS 49

OpenStack Heat 50

OpenStack Database as a Service: Trove 54

Designate: DNS as a Service 62

Magnum 67

Murano: Application as a Service 70

Ceilometer: Telemetry as a Service 75

Summary 76

PART II: DEVELOPING AND DEPLOYING APPLICATIONS WITH OPENSTACK

CHAPTER 4: APPLICATION DEVELOPMENT 79

Converting a Legacy App to an OpenStack App 79

Building Apps from Scratch 83

OpenStack App Description and Deployment Strategies 87

Summary 92

CHAPTER 5: IMPROVING ON THE APPLICATION 93

Failure Scenarios 94

Hostname and IP Addressing 99

Scaling 103

Improving Our Application 111

Summary 119

CHAPTER 6: DEPLOYING THE APPLICATION 121

Bare Metal, Virtual Machines, and Containers 122

Orchestration and Configuration Management 127

Monitoring and Metering 136

Elasticity 137

Updating and Patching 147

Summary 149

Book Wrap Up 149

INDEX 151

About the authors

Scott Adkins is a technical lead for the Cloud Operations team at Comcast helping deploy new internal OpenStack environments.

John Belamaric is a key architect of the Infoblox Cloud products, concentrating on OpenStack integration and development.

Vincent Giersch is the co-founder and CTO of Flat.io, where he works on the automation of deployment and scaling of the SaaS application.

Denys Makogon is a lead software developer for Gigaspaces, developing and designing platform and SaaS applications for OpenStack.

Jason Robinson is a senior platform developer at GoDaddy helping teams transition traditional applications to their internal OpenStack cloud with a focus on orchestration and resiliency.

Master the OpenStack platform to develop robust scalable applications

Developers are flocking to OpenStack as a free, reliable, fast, and easy platform for developing scalable cloud applications without concern for underlying hardware. Compatible with Amazon Web Services, VMWare, and similar technologies, OpenStack allows developers greater flexibility without compromising performance or security. This guide is a professional-level roadmap to robust OpenStack development, providing detailed instruction on building, deploying, networking, and protecting a large application. Geared toward real-world professional training, the complete build-along example provides a true hands-on learning experience and the opportunity to delve deep into the technologies used at each stage of the development process.

OpenStack Cloud Application Development:

• Explains the use of OpenStack service primitives including compute, storage, networking, and orchestration in building and deploying cloud applications
• Describes the OpenStack Ecosystem and drills down into the deep mechanics of networking
• Details the current Best Practices in the deployment of Virtualized Network Functions for Enterprises, along with expert tips and tricks
• Builds an example application on top of OpenStack to show the benefits of enterprise-level IaaS at a professional pace
• Provides expert instruction on OpenStack security and protection against data loss

Wrox Professional guides are planned and written by working programmers to meet the real-world needs of programmers, developers, and IT professionals. Focused and relevant, they address the issues technology professionals face every day. They provide examples, practical solutions, and expert education in new technologies, all designed to help programmers do a better job.