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

Attaching volumes to an instance


Now that we have a usable volume, we can attach it to any instance. We'll do this using the openstack server volume add command.

Getting ready

To attach a volume to an instance, you will need the following:

  • The openstack command-line client

  • An openrc file with appropriate credentials for the environment

  • The name or ID of the volume to attach

  • The name or ID of the instance to attach the volume to

For our example, these values are as follows:

  • Volume: cookbook.volume

  • Instance: cookbook.test

How to do it...

Carry out the following steps to attach a volume to an instance using the openstack client:

  1. First, let's list running instances to get the ID of our instance:

    openstack server list -c Name -c ID -f table
    

    An example showing our running instance called cookbook.test is shown here:

  2. Now list the available volumes to get the ID of our volume:

    openstack volume list
    

    This shows the information we need about our volume:

  3. Using the instance and volume name or IDs, we'll attach the...