OpenStack运维实战指南：2015版

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"OpenStack 实践操作参考指导 openstack-ops-manual" 是一本详细指南，由 OpenStack 基金会编撰，旨在帮助读者理解和设计、运营 OpenStack 云平台。该书于 2015 年 1 月发布，版权许可遵循 Creative Commons Attribution 3.0 License，允许在适当的情况下进行分享和修改。本书的核心内容涵盖了 OpenStack 的各个方面，包括但不限于部署策略、组件功能介绍（如 Nova（计算）、Cinder（存储）、Neutron（网络）等）、安装与配置流程、安全性和运维管理。它强调了实际操作中的最佳实践，为 IT 工程师和管理员提供了实用的步骤和案例分析，使他们能够有效地管理和优化 OpenStack 生态系统。书中还特别提到了 OpenStack 基金会的支持，基金会通过资助作者参与编写活动，如提供前往奥斯汀 Rackspace 办公室的机会，包括住宿、餐饮以及非正式的工作环境，如在暴风雨后失去电力的夜晚。这表明基金会对于推动开源社区的活跃和发展给予了高度重视。作者们作为 OpenStack 基金会的成员，他们的贡献和经验是本书的一大亮点。特别感谢 Emma Richardson 和 Betsy Hagemeier，前者来自 Rackspace 的客户服务团队，对作者们的日常需求和舒适度提供了细心周到的照顾；后者作为狂热的行政助理，为项目的顺利进行提供了不可或缺的支持。 "OpenStackOpsGuide" 是一本极具价值的参考资源，无论是对于初次接触 OpenStack 的用户，还是希望提升 OpenStack 技能的专业人员，都是一份不可多得的实践指南。通过阅读和应用书中的内容，读者将能更深入地理解 OpenStack 架构，并提升在云计算领域的操作能力。

OpenStack Ops Guide January 5, 2015

xvi

Using OpenStack

You could ask, "Do I even need to build a cloud?" If you want to start us-

ing a compute or storage service by just swiping your credit card, you can

go to eNovance, HP, Rackspace, or other organizations to start using their

public OpenStack clouds. Using their OpenStack cloud resources is similar

to accessing the publicly available Amazon Web Services Elastic Compute

Cloud (EC2) or Simple Storage Solution (S3).

Plug and Play OpenStack

However, the enticing part of OpenStack might be to build your own pri-

vate cloud, and there are several ways to accomplish this goal. Perhaps the

simplest of all is an appliance-style solution. You purchase an appliance,

unpack it, plug in the power and the network, and watch it transform in-

to an OpenStack cloud with minimal additional configuration. Few, if any,

other open source cloud products have such turnkey options. If a turnkey

solution is interesting to you, take a look at Nebula One.

However, hardware choice is important for many applications, so if that

applies to you, consider that there are several software distributions avail-

able that you can run on servers, storage, and network products of your

choosing. Canonical (where OpenStack replaced Eucalyptus as the default

cloud option in 2011), Red Hat, and SUSE offer enterprise OpenStack so-

lutions and support. You may also want to take a look at some of the spe-

cialized distributions, such as those from Rackspace, Piston, SwiftStack, or

Cloudscaling.

Alternatively, if you want someone to help guide you through the deci-

sions about the underlying hardware or your applications, perhaps adding

in a few features or integrating components along the way, consider con-

tacting one of the system integrators with OpenStack experience, such as

Mirantis or Metacloud.

If your preference is to build your own OpenStack expertise internally, a

good way to kick-start that might be to attend or arrange a training ses-

sion. The OpenStack Foundation recently launched a Training Marketplace

where you can look for nearby events. Also, the OpenStack community is

working to produce open source training materials.

Roll Your Own OpenStack

However, this guide has a different audience—those seeking flexibility

from the OpenStack framework by conducting do-it-yourself solutions.

OpenStack Ops Guide January 5, 2015

xvii

OpenStack is designed for horizontal scalability, so you can easily add new

compute, network, and storage resources to grow your cloud over time.

In addition to the pervasiveness of massive OpenStack public clouds, many

organizations, such as PayPal, Intel, and Comcast, build large-scale private

clouds. OpenStack offers much more than a typical software package be-

cause it lets you integrate a number of different technologies to construct

a cloud. This approach provides great flexibility, but the number of options

might be daunting at first.

Who This Book Is For

This book is for those of you starting to run OpenStack clouds as well as

those of you who were handed an operational one and want to keep it

running well. Perhaps you're on a DevOps team, perhaps you are a system

administrator starting to dabble in the cloud, or maybe you want to get on

the OpenStack cloud team at your company. This book is for all of you.

This guide assumes that you are familiar with a Linux distribution that sup-

ports OpenStack, SQL databases, and virtualization. You must be comfort-

able administering and configuring multiple Linux machines for network-

ing. You must install and maintain an SQL database and occasionally run

queries against it.

One of the most complex aspects of an OpenStack cloud is the network-

ing configuration. You should be familiar with concepts such as DHCP, Lin-

ux bridges, VLANs, and iptables. You must also have access to a network

hardware expert who can configure the switches and routers required in

your OpenStack cloud.

Tip

Cloud computing is a quite advanced topic, and this book

requires a lot of background knowledge. However, if you

are fairly new to cloud computing, we recommend that you

make use of the Glossary [301] at the back of the book,

as well as the online documentation for OpenStack and ad-

ditional resources mentioned in this book in AppendixD, Re-

sources [299].

OpenStack运维实战指南：2015版

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