Book Image

KVM Virtualization Cookbook

By : Konstantin Ivanov
Book Image

KVM Virtualization Cookbook

By: Konstantin Ivanov

Overview of this book

Virtualization technologies such as KVM allow for better control over the available server resources, by deploying multiple virtual instances on the same physical host, or clusters of compute resources. With KVM it is possible to run various workloads in isolation with the hypervisor layer providing better tenant isolation and higher degree of security. This book will provide a deep dive into deploying KVM virtual machines using qemu and libvirt and will demonstrate practical examples on how to run, scale, monitor, migrate and backup such instances. You will also discover real production ready recipes on deploying KVM instances with OpenStack and how to programatically manage the life cycle of KVM virtual machines using Python. You will learn numerous tips and techniques which will help you deploy & plan the KVM infrastructure. Next, you will be introduced to the working of libvirt libraries and the iPython development environment. Finally, you will be able to tune your Linux kernel for high throughput and better performance. By the end of this book, you will gain all the knowledge needed to be an expert in working with the KVM virtualization infrastructure.
Table of Contents (15 chapters)
Title Page
About the Author
About the Reviewer
Customer Feedback

Preparing the host for the OpenStack deployment

In this recipe, we are going to install the infrastructure components that OpenStack depends on, such as the database server, the message queue, and the caching service. The projects that we are going to use throughout this chapter depend on these services for communication and persistent storage.

Getting ready

For this recipe, we are going to need the following components:

  • An Ubuntu server with great virtualization capabilities
  • Access to the internet for package installation

How to do it...

In order to keep the deployment simple and focus on the provisioning aspect of OpenStack, we are going to use a single physical server to host all services. In production environments, it is a common approach to separate each service onto their own set of servers, for scalability and high availability. By following the steps outlined in this chapter, you should be able to deploy all services on multiple hosts, by replacing the IP addresses and hostnames in the...