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KVM Virtualization Cookbook 无水印pdf.pdf
Cover
Copyright
About the Author
Table of Contents
Preface
1: Getting Started with QEMU and KVM
Introduction
Installing and configuring QEMU
Getting ready
How to do it...
How it works...
Managing disk images with qemu-img
Getting ready
How to do it...
How it works...
There's more...
Preparing images for OS installation with qemu-nbd
Getting ready
How to do it...
How it works...
Installing a custom OS on the image with debootstrap
Getting ready
How to do it...
How it works...
Resizing an image
Getting ready
How to do it...
How it works...
Using pre-existing images
Getting ready
How to do it...
How it works...
There's more...
See also
Running virtual machines with qemu-system-*
Getting ready
How to do it...
How it works...
Starting the QEMU VM with KVM support
Getting ready
How to do it...
How it works...
There's more...
Connecting to a running instance with VNC
Getting ready
How to do it...
How it works...
2: Using libvirt to Manage KVM
Introduction
Installing and configuring libvirt
Getting ready
How to do it...
How it works...
Defining KVM instances
Getting ready
How to do it...
How it works...
There's more...
Starting, stopping, and removing KVM instances
Getting ready
How to do it...
How it works...
Inspecting and editing KVM configs
Getting ready
How to do it...
How it works...
Building new KVM instances with virt-install and using the console
Getting ready
How to do it...
How it works...
Managing CPU and memory resources in KVM
Getting ready
How to do it...
How it works...
There's more...
Attaching block devices to virtual machines
Getting ready
How to do it...
How it works...
Sharing directories between a running VM and the host OS
Getting ready
How to do it...
How it works...
There's more...
Autostarting KVM instances
Getting ready
How to do it...
How it works...
Working with storage pools
Getting ready
How to do it...
How it works...
There's more...
Managing volumes
Getting ready
How to do it...
How it works...
Managing secrets
Getting ready
How to do it...
How it works...
3: KVM Networking with libvirt
Introduction
The Linux bridge
Getting ready
How to do it...
How it works...
There's more...
The Open vSwitch
Getting ready
How to do it...
How it works...
There's more...
Configuring NAT forwarding network
Getting ready
How to do it...
How it works...
Configuring bridged network
Getting ready
How to do it...
How it works...
Configuring PCI passthrough network
Getting ready
How to do it...
How it works...
Manipulating network interfaces
Getting ready
How to do it...
How it works...
4: Migrating KVM Instances
Introduction
Manual offline migration using an iSCSI storage pool
Getting ready
How to do it...
How it works...
There's more...
Manual offline migration using GlusterFS shared volumes
Getting ready
How to do it...
How it works...
Online migration using the virsh command with shared storage
Getting ready
How to do it...
How it works...
There's more...
Offline migration using the virsh command and local image
Getting ready
How to do it...
How it works...
Online migration using the virsh command and local image
Getting ready
How to do it...
How it works...
5: Monitoring and Backup of KVM Virtual Machines
Introduction
Resource usage collection with libvirt
Getting ready
How to do it...
How it works...
There's more...
Monitoring KVM instances with Sensu
Getting ready
How to do it...
How it works...
There's more...
Simple KVM backups with tar and rsync
Getting ready
How to do it...
How it works...
Creating snapshots
Getting ready
How to do it...
How it works...
Listing snapshots
Getting ready
How to do it...
How it works...
Inspecting snapshots
Getting ready
How to do it...
How it works...
Editing snapshots
Getting ready
How to do it...
How it works...
Reverting snapshots
Getting ready
How to do it...
How it works...
Deleting snapshots
Getting ready
How to do it...
How it works...
6: Deploying KVM Instances with OpenStack
Introduction
Preparing the host for the OpenStack deployment
Getting ready
How to do it...
How it works...
Installing and configuring the OpenStack Keystone identity service
Getting ready
How to do it...
How it works...
Installing and configuring the OpenStack Glance image service
Getting ready
How to do it...
How it works...
Installing and configuring the OpenStack Nova compute service
Getting ready
How to do it...
How it works...
Installing and configuring the OpenStack Neutron networking service
Getting ready
How to do it...
How it works...
Building and inspecting KVM instances with OpenStack
Getting ready
How to do it...
How it works...
Stopping KVM instances with OpenStack
Getting ready
How to do it...
How it works...
Terminating KVM instances with OpenStack
Getting ready
How to do it...
How it works...
7: Using Python to Build and Manage KVM Instances
Introduction
Installing and using the Python libvirt library
Getting ready
How to do it...
How it works...
Defining KVM instances with Python
Getting ready
How to do it...
How it works...
There's more...
Starting, stopping, and deleting KVM instances with Python
Getting ready
How to do it...
How it works...
There's more...
Inspecting KVM instances with Python
Getting ready
How to do it...
How it works...
There's more...
Building a simple REST API server with libvirt and bottle
Getting ready
How to do it...
How it works...
There's more...
8: Kernel Tuning for KVM Performance
Introduction
Tuning the kernel for low I/O latency
Getting ready
How to do it...
How it works...
Memory tuning for KVM guests
Getting ready
How to do it...
How it works...
CPU performance options
Getting ready
How to do it...
How it works...
NUMA tuning with libvirt
Getting ready
How to do it...
How it works...
There is more...
Tuning the kernel for network performance
Getting ready
How to do it...
How it works...
Index
KVM Virtualization Cookbook
Learn how to effectively use KVM in production
Konstantin Ivanov
BIRMINGHAM - MUMBAI
KVM Virtualization Cookbook
Copyright © 2017 Packt Publishing
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information presented. However, the information contained in this book is sold without
warranty, either express or implied. Neither the author, nor Packt Publishing, and its
dealers and distributors will be held liable for any damages caused or alleged to be caused
directly or indirectly by this book.
Packt Publishing has endeavored to provide trademark information about all of the
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However, Packt Publishing cannot guarantee the accuracy of this information.
First published: June 2017
Production reference: 1140617
Published by Packt Publishing Ltd.
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ISBN 978-1-78829-467-6
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Credits
Author
Konstantin Ivanov
Copy Editor
Dipti Mankame
Reviewer
Jay Payne
Project Coordinator
Judie Jose
Acquisition Editor
Rahul Nair
Proofreader
Safis Editing
Content Development Editor
Devika Battike
Indexer
Rekha Nair
Technical Editor
Prachi Sawant
Graphics
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Production Coordinator
Aparna Bhagat
About the Author
Konstantin Ivanov is a Linux systems engineer, an open source developer, and a
technology blogger who has been designing, configuring, deploying, and administering
large-scale, highly available Linux environments for more than 15 years.
His interests include large distributed systems and task automation, along with solving
technical challenges involving multiple technology stacks.
Konstantin received two master of science in computer science degrees from universities in
Bulgaria and the United States, specializing in system and network security and software
engineering.
In his spare time, he loves writing technology blogs and spending time with his two boys.
To my amazing wife, Deepa, my trusty companion through the many long days of writing.
About the Reviewer
Jay Payne has been a database administrator 5 at Rackspace for over 10 years, working on
the design, development, implementation, and operation of storage systems.
Previously, Jay worked on billing and support systems for hosting companies. For the last
20 years, he has primarily focused on the data life cycle, from database architecture,
administration, operations, and reporting to disaster recovery and compliance. He has
domain experience in hosting, finance, billing, and customer-support industries.
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