Preface

OpenStack is one of the fastest growing open source projects in the history. Its rapid adoption and popularity has led to an increase in the demand of OpenStack talent. The skills you will learn in this book will help you position yourself as an effective OpenStack troubleshooter.

What this book covers

Chapter 1, The Troubleshooting Toolkit, covers various tools that will provide invaluable as you troubleshoot OpenStack.

Chapter 2, Troubleshooting OpenStack Identity, helps you to quickly recognize and resolve identity and authentication issues.

Chapter 3, Troubleshooting the OpenStack Image Service, fixes problems with Glance, the OpenStack Image service.

Chapter 4, Troubleshooting OpenStack Networking, shows you how to resolve networking problems within your OpenStack cluster.

Chapter 5, Troubleshooting OpenStack Compute, adverts that the compute service is central to OpenStack, and this chapter includes helpful tips for quickly getting things resolved in case the service breaks.

Chapter 6, Troubleshooting OpenStack Block Storage, explores ways to resolve issues with persistent storage in an OpenStack cluster.

Chapter 7, Troubleshooting OpenStack Object Storage, introduces you to object storage in OpenStack and helps you master the techniques to resolve common issues.

Chapter 8, Troubleshooting the OpenStack Orchestration Service, discusses Heat, the OpenStack Orchestration service, and how to navigate through errors or problems with this service.

Chapter 9, Troubleshooting the OpenStack Telemetry Service, explores Ceilometer and how to troubleshoot issues with the telemetry processes and meters.

Chapter 10, OpenStack Performance, Availability, and Reliability, provides you with tips for maintaining the overall health of your OpenStack cluster.

What you need for this book

This book is based upon the Liberty release of OpenStack running on the Ubuntu operating system. While most of the content will be relevant to other versions of OpenStack, and alternate operating systems, the examples are based on the author's configuration.

Who this book is for

You will need a basic understanding of OpenStack, Linux, and cloud computing. If you have an understanding of Linux, this book will help you leverage that knowledge in the world of OpenStack, giving you confidence to tackle most issues that may arise.

Conventions

In this book, you will find a number of text styles that distinguish between different kinds of information. Here are some examples of these styles and an explanation of their meaning.

Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "Typing ceilometer help in the terminal will give you a list of the available commands."

A block of code is set as follows:

instance_usage_audit = True 
instance_usage_audit_period = hour 
notify_on_state_change = vm_and_task_state 
notification_driver = messagingv2

Any command-line input or output is written as follows:

sudo -u ceilometer ceilometer-api --config-file=/etc/ceilometer/ceilometer.conf --log-file=/var/log/ceilometer/ceilometer-api.log

Note

Warnings or important notes appear in a box like this.

Tip

Tips and tricks appear like this.

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