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

Creating a flavor


Before Nova can start instances, it first needs to know what resources should be assigned to those instances. The way Nova handles resource assignments is to define flavors. A flavor specifies the number of vCPUs, RAM, and the disk to assign to an instance.

Getting ready

To create a new flavor, you will need the following:

  • The openstack command-line client

  • The openrc file containing appropriate credentials

  • The name, vCPU, RAM, and disk values for the new flavor

The flavor we will create in this example will have the following attributes:

  • Flavor name: openstack.cookbook

  • vCPU: 1

  • Ram: 512 MB

  • Disk: 5 GB

  • Visibility: Public

How to do it…

The following commands are used to create a new flavor:

  1. First, list the available flavors already configured in our environment with the following command:

    openstack flavor list
    

    This will bring back an output like the following:

  2. Create the flavor with our given attributes:

    openstack flavor create
        --vcpus 1
        --ram 512
        --disk 5
        --public
        openstack...