Book Image

OpenStack for Architects

By : Michael Solberg, Benjamin Silverman
Book Image

OpenStack for Architects

By: Michael Solberg, Benjamin Silverman

Overview of this book

Over the last five years, hundreds of organizations have successfully implemented Infrastructure as a Service (IaaS) platforms based on OpenStack. The huge amount of investment from these organizations, industry giants such as IBM and HP, as well as open source leaders such as Red Hat have led analysts to label OpenStack as the most important open source technology since the Linux operating system. Because of its ambitious scope, OpenStack is a complex and fast-evolving open source project that requires a diverse skill-set to design and implement it. This guide leads you through each of the major decision points that you'll face while architecting an OpenStack private cloud for your organization. At each point, we offer you advice based on the experience we've gained from designing and leading successful OpenStack projects in a wide range of industries. Each chapter also includes lab material that gives you a chance to install and configure the technologies used to build production-quality OpenStack clouds. Most importantly, we focus on ensuring that your OpenStack project meets the needs of your organization, which will guarantee a successful rollout.
Table of Contents (14 chapters)
OpenStack for Architects
About the Authors
Customer Feedback

Updating the design document

In this chapter, we've identified several different ways to interact with OpenStack using the available APIs. Now is a good time to revisit the design document and fill out the Requirements section. An ideal set of requirements for an OpenStack cloud will have the following characteristics:

  • Each requirement should be atomic to limit the scope of the requirement

  • Each requirement should contain context; there should be information on who will be using the functionality and under what circumstances

  • Each requirement should be testable, ideally in an automated fashion

If these conditions are met, we can generate policy documentation based on which roles should have access to which functionality and we can generate automated test suites that verify that the requirements of the platform are met. These test suites can in turn be used in monitoring suites to ensure that the running system is performing according to specification.

Writing requirements

In this section, we'll...