Book Image

OpenStack Cloud Computing Cookbook - Fourth Edition

By : Kevin Jackson, Cody Bunch, Egle Sigler, James Denton
Book Image

OpenStack Cloud Computing Cookbook - Fourth Edition

By: Kevin Jackson, Cody Bunch, Egle Sigler, James Denton

Overview of this book

This is the fourth edition of the industry-acclaimed OpenStack Cloud Computing Cookbook, created by four recognized OpenStack experts. It has now been updated to work with the latest OpenStack builds, using tools and processes based on their collective and vast OpenStack experience. OpenStack Open Source Cloud software is one of the most used cloud infrastructures to support a wide variety of use cases, from software development to big data analysis. It is developed by a thriving community of individual developers from around the globe and backed by most of the leading players in the cloud space today. We make it simple to implement, massively scalable, and able to store a large pool of data and networking resources. OpenStack has a strong ecosystem that helps you provision your cloud storage needs. Add OpenStack's enterprise features to reduce the cost of your business. This book will begin by showing you the steps to build up an OpenStack private cloud environment using Ansible. You'll then discover the uses of cloud services such as the identity service, image service, and compute service. You'll dive into Neutron, the OpenStack Networking service, and get your hands dirty with configuring networks, routers, load balancers, and more. You’ll then gather more expert knowledge on OpenStack cloud computing by managing your cloud's security and migration. After that, we delve into OpenStack Object storage and you’ll see how to manage servers and work with objects, cluster, and storage functionalities. Finally, you will learn about OpenStack dashboard, Ansible, Keystone, and other interesting topics.
Table of Contents (15 chapters)
OpenStack Cloud Computing Cookbook Fourth Edition
Contributors
Preface
Another Book You May Enjoy
Index

Deactivating images


By default, images are available for use immediately upon completion of the uploading process. At times, it may be necessary to deactivate an image to prevent users from booting instances with the image, especially in cases where the image may be outdated but must be retained for archival purposes.

Deactivating an image

Images can be deactivated using the openstack image set command with the --deactivate argument.

Getting ready

When deactivating an image, ensure that you are authenticated as an administrator or are the owner of the image. You will need the following details, at a minimum:

  • Image name or ID

For our examples, the following will be used:

  • Image name: COOKBOOK_UBUNTU_IMAGE

How to do it…

With the OpenStack client installed on our system, we are now able to deactivate an image with the following command:

openstack image set COOKBOOK_UBUNTU_IMAGE --deactivate

No output is returned if the operation is successful. Use the openstack image show command to reveal the status...