OpenStack Networking Essentials电子书

OpenStack Networking Essentials

Table of Contents

OpenStack Networking Essentials

Credits

About the Author

www.PacktPub.com

eBooks, discount offers, and more

Why subscribe?

Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Downloading the example code

Downloading the color images of this book

Errata

Piracy

Questions

1. OpenStack Networking Components – an Overview

Features of OpenStack Networking

Switching

Routing

Advanced networking features

Load balancing

Firewalling

Virtual private networks

The OpenStack architecture

A reference architecture

Implementing the network

Plugins and drivers

Neutron agents

The DHCP agent

The metadata agent

The network plugin agent

Summary

2. Installing OpenStack Using RDO

System requirements

The initial network configuration

Example networks

Interface configuration

Connect to the host

Initial steps

Permissions

Install network utilities

Set the hostname

Install Network Time Protocol (NTP)

Disable NetworkManager

Upgrade the system

Install RDO using Packstack

Download RDO

Configure the answer file

Install RDO

Verify connectivity to OpenStack

Verify connectivity to the dashboard

Additional installation tasks

Create a security group rule

Create a demo project and user

Configure the keystone_demo file

Upload an image to Glance

Summary

3. Neutron API Basics

Networks

Network attributes

Provider attributes

Additional attributes

Subnets

Ports

The Neutron workflow

Booting an instance

How the logical model is implemented

Deleting an instance

Summary

4. Interfacing with Neutron

Using the Horizon dashboard

Managing resources within a project

Creating networks within a project

Viewing the network topology

Managing resources as an administrator

Using the Neutron client

Creating and listing networks

Creating a network

Creating a subnet

Summary

5. Switching

The basics of switching in OpenStack

Using Linux bridges

Using Open vSwitch

Network types

Local networks

Flat networks

VLAN networks

VXLAN networks

GRE networks

A look at our environment

Getting a closer look

Summary

6. Routing

The basics of routing in Neutron

Network namespaces

Connectivity through a router

Outbound connectivity

Inbound connectivity

Types of routers

Standalone routers

Highly available routers

Distributed virtual routers

Managing routers in the dashboard

Creating routers within a project

Viewing the network topology

Managing routers as an administrator

Managing routers with the Neutron client

Creating and listing routers

Creating a router

Adding an interface

Listing router interfaces

Examining the routers

Summary

7. Building Networks and Routers

Using provider networks

Creating a provider network

Booting an instance

Accessing the instance

Using a Neutron router

External provider networks

Attaching the router to an external provider network

Booting an instance

Testing connectivity

Observing SNAT behavior

Assigning a floating IP

Testing connectivity via floating IP

Multiple routers

Advanced networking

Summary

8. Security Group Fundamentals

Security groups in OpenStack

Using security groups

The default security group

Managing security groups

Using CIDR to control traffic

Applying security groups to instances and ports

Working with security groups in the dashboard

Creating a security group

Managing security group rules

Applying security groups to instances

Caveats

Port security

Allowed address pairs

Disabling port security

Summary

A. Configuring VirtualBox

Configuring VirtualBox networking

Configuring host-only networks

Creating a virtual machine

Configuring a virtual machine

Installing the CentOS operating system

Attaching the ISO to the virtual machine

Starting the virtual machine

Configuring virtual machine networking

Accessing the virtual machine

Configuring network interfaces

Accessing a virtual machine over SSH

Index