Book Image

Mastering KVM Virtualization

Book Image

Mastering KVM Virtualization

Overview of this book

A robust datacenter is essential for any organization – but you don’t want to waste resources. With KVM you can virtualize your datacenter, transforming a Linux operating system into a powerful hypervisor that allows you to manage multiple OS with minimal fuss. This book doesn’t just show you how to virtualize with KVM – it shows you how to do it well. Written to make you an expert on KVM, you’ll learn to manage the three essential pillars of scalability, performance and security – as well as some useful integrations with cloud services such as OpenStack. From the fundamentals of setting up a standalone KVM virtualization platform, and the best tools to harness it effectively, including virt-manager, and kimchi-project, everything you do is built around making KVM work for you in the real-world, helping you to interact and customize it as you need it. With further guidance on performance optimization for Microsoft Windows and RHEL virtual machines, as well as proven strategies for backup and disaster recovery, you’ll can be confident that your virtualized data center is working for your organization – not hampering it. Finally, the book will empower you to unlock the full potential of cloud through KVM. Migrating your physical machines to the cloud can be challenging, but once you’ve mastered KVM, it’s a little easie.
Table of Contents (22 chapters)
Mastering KVM Virtualization
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
Index

Launching First Instance


The OpenStack dashboard is really easy to use. Log in to the dashboard, then switch to the Instances page using the switcher on the left-hand pane. The Instances page displays all running instances and there is a Launch Instance button on the top toolbar. Clicking on Launch Instance will bring up the Launch Instance dialog. Input an instance name, select the flavor, boot source, and network, then select Launch, and it will create the instance, which you can access over a VNC connection.

An instance can also be launched from the command line. The following is the typical procedure to launch the instance:

  1. First make sure all OpenStack services are running properly by executing the #OpenStack-status command. This command shows an overview of installed OpenStack services and basic information managed by those services.

  2. After verifying all the services are running properly, source the keystonerc_admin file present at the /root/ directory. This file contains the keystone...