Book Image

Preparing for the Certified OpenStack Administrator Exam

By : Matt Dorn
Book Image

Preparing for the Certified OpenStack Administrator Exam

By: Matt Dorn

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!
Table of Contents (13 chapters)

Summary

You've just learned about all the Nova-related objectives on the exam. Nova has many more features, but understanding how to manage flavors, key pairs, instances, and virtual instance actions should put you in a good position going into the exam. Remember that all Nova-related exam objectives can be completed via the Horizon dashboard. If you want to use python-openstackclient, ensure you are familiar with any positional or optional arguments. If you forget them, rely on the openstack help command. Recall that key pairs are one of the OpenStack resources that are owned by users, not the project. When you delete a user, their public key is also deleted. Nova only stores a copy of the public key. If you lose your private key, you must generate a new key pair. By default, flavors are accessible to all users in all projects across all domains. In order to make a flavor...