Chapter 1, Introduction to OpenStack, provides the high-level overview of OpenStack and
the projects that make up this cloud platform. This introduction will set the level for the
reader on the OpenStack components, concepts, and verbiage.
Chapter 2, Introduction to Ansible, gives the detailed review of Ansible 2.0, its features, and
the best practices to set a solid starting foundation. Also, it will review why leveraging
Ansible to automate OpenStack tasks is the easiest option.
Chapter 3, Creating Multiple Users/Tenants, guides the reader through the process of
creating users and tenants within OpenStack manually and the creation considerations in
order to automate such a process using Ansible.
Chapter 4, Customizing Your Clouds Quotas, makes you understand what quotas are and
how they are used to restrict your cloud resources. It shows the reader how to create quotas
manually in OpenStack. After this, it explains how to automate this process with Ansible in
order to handle the task for multiple tenants at one time.
Chapter 5, Snapshot Your Cloud, teaches how to create snapshots of your cloud instances
manually within OpenStack and how to automate this process using Ansible. It explores the
power of being able to snapshot all instances within a tenant in one shot.
Chapter 6, Migrating Instances, introduces the concept of migrating select instances across
compute nodes in the traditional OpenStack method. Then, it demonstrates the required
steps to automate this task while grouping instances together and shows the additional
options Ansible can offer in handling a task of this matter.
Chapter 7, Managing Containers on Your Cloud, takes the reader through a few strategies on
how you can automate building and deploying containers running on your OpenStack
cloud. There are a few approaches now available, but the key is automating the process so
that it is a reuseable function. For each approach, the chapter shows the building blocks of
how to accomplish this successfully with OpenStack.
Chapter 8, Setting up Active-Active Regions, gives the detailed review of a few use cases of
setting up an Active-Active OpenStack cloud regions. With that knowledge, you will then
physically learn how to automate this to deploy onto your clouds.
Chapter 9, Inventory Your Cloud, explores how the reader can dynamically inventory all the
OpenStack cloud user resources with one Ansible playbook. It walks them through the
necessary metrics to gather and how that information can be stored for later reference. This
is a very powerful tool to have as a cloud administrator/operator.
Chapter 10, Health Check Your Cloud with Nagios, demonstrates some useful tips and tricks
on how to check the health of your cloud manually and leverage Ansible to set up Nagios
and the necessary checks to monitor your cloud. Nagios is one of the leading open source
monitoring platforms out there and compliments OpenStack and Ansible very well.
