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

Deleting an instance


To complete the life cycle of an instance, you will need to delete it. Nova provides a facility for this, using the openstack command-line tool.

Getting ready

To delete an instance, you will need the following:

  • The openstack command-line client

  • The openrc file containing appropriate credentials

  • The name of the instance

How to do it…

In this example, we will be deleting the cookbook.test instance created in the Booting an instance recipe used for booting. To delete the instance, use the following steps:

  1. First, list the running instances:

    openstack server list
    
  2. To delete the instance named cookbook.test, issue the following command:

    openstack server delete cookbook.test
    

    Note

    This command produces no output when successful.

  3. Now list the instances again to confirm the deletion:

    openstack server list
    

    This will bring back an output, where the instance we have deleted is now not present:

How it works…

The openstack server delete command, unlike suspending or shelving an instance, deletes...