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Preparing for the Certified OpenStack Administrator Exam

By : Matt Dorn

4.5 (11)

Buy this Book

Preparing for the Certified OpenStack Administrator Exam

4.5 (11)

By: Matt Dorn

Buy this Book

Overview of this book

This book provides you with a specific strategy to pass the OpenStack Foundation’s first professional certification: the Certified OpenStack Administrator. In a recent survey, 78% of respondents said the OpenStack skills shortage had deterred them from adopting OpenStack. Consider this an opportunity to increase employer and customer confidence by proving you have the skills required to administrate real-world OpenStack clouds. You will begin your journey by getting well-versed with the OpenStack environment, understanding the benefits of taking the exam, and installing an included OpenStack All-in-One Virtual Appliance to work through objectives covered throughout the book. After exploring the basics of the individual services, you will be introduced to strategies to accomplish the exam objectives relevant to Keystone, Glance, Nova, Neutron, Cinder, Swift, Heat, and troubleshooting. Finally, you’ll benefit from the special tips section and a practice exam to put your knowledge to the test. By the end of the journey, you will be ready to become a Certified OpenStack Administrator!

Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Free Chapter

Introducing OpenStack and the Certified OpenStack Administrator Exam

A brief history of the cloud

About OpenStack

About the Certified OpenStack Administrator exam

Seven steps to becoming a Certified OpenStack Administrator

Summary

Setting up Your Practice Exam Environment

About VirtualBox

Open Virtual Appliance (OVA)

A traditional OpenStack cloud

The all-in-one Newton environment

Minimum hardware requirements

Downloading and installing VirtualBox

Configuring VirtualBox networking

Importing the appliance

Summary

Keystone Identity Service

About Keystone

Authentication in action

The admin life

Keystone and the OpenStack CLI

Project scope via CLI

Exam objectives

Summary

Glance Image Service

What is a cloud image?

Exam objectives

Summary

Nova Compute Service

Nova - the compute orchestrator

Exam objectives

Summary

Neutron Networking Service

About Neutron

Neutron architecture

Exam objectives

Summary

Cinder Block-Storage Service

About Cinder

Exam objectives

Summary

Swift Object-Storage Service

About Swift

Exam objectives

Summary

Heat Orchestration Service

About Heat

Heat architecture

Heat templates

Heat resources

Exam objectives

Summary

Troubleshooting

Debugging the CLI

Managing OpenStack daemons

Using the APIs to check the component status

Important OpenStack service directories

Exam objective - analyzing log files

Managing MySQL

Summary

Final Tips and Tricks

Project scope

Time management

CLI help

External monitors

Issues during the exam

Diving deeper into OpenStack

Summary

Practice Exam

Before you begin...

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Neutron architecture

Neutron is made up of five daemons, as shown in Figure 6.1.

Figure 6.1: High-level view of Neutron architecture

neutron-server: The API and primary gateway to Neutron. One must interact with neutron-server to create, list, delete, and manage networks and other network resources.
neutron-dhcp-agent: Provides DHCP services to DHCP-enabled Neutron subnets. Behind the scenes, neutron-dhcp-agent actually uses dnsmasq, the popular lightweight DHCP server software, within a network namespace. Network namespaces are a feature of the Linux kernel and partition the use of the network, allowing segregation of network resources despite similar IP address ranges.
neutron-l3-agent: Creates Neutron routers. Behind the scenes, Neutron routers are network namespaces with unique routing tables and iptables rules.
neutron-metadata-agent: Provides metadata services to instances...