Docker Networking Cookbook

Docker Networking Cookbook

Overview of this book

Networking functionality in Docker has changed considerably since its first release, evolving to offer a rich set of built-in networking features, as well as an extensible plugin model allowing for a wide variety of networking functionality. This book explores Docker networking capabilities from end to end. Begin by examining the building blocks used by Docker to implement fundamental containing networking before learning how to consume built-in networking constructs as well as custom networks you create on your own. Next, explore common third-party networking plugins, including detailed information on how these plugins inter-operate with the Docker engine. Consider available options for securing container networks, as well as a process for troubleshooting container connectivity. Finally, examine advanced Docker networking functions and their relevant use cases, tying together everything you need to succeed with your own projects.

Docker Networking Cookbook

Credits

About the Author

About the Reviewer

www.PacktPub.com

Preface

Free Chapter

Linux Networking Constructs

Introduction

Working with interfaces and addresses

Configuring Linux host routing

Exploring bridges

Making connections

Exploring network namespaces

Configuring and Monitoring Docker Networks

Introduction

Verifying host-level settings that impact Docker networking

Connecting containers in bridge mode

Exposing and publishing ports

Connecting containers to existing containers

Connecting containers in host mode

Configuring service-level settings

User-Defined Networks

Introduction

Viewing the Docker network configuration

Creating user-defined networks

Connecting containers to networks

Defining a user-defined bridge network

Creating a user-defined overlay network

Isolating networks

Building Docker Networks

Introduction

Manually networking containers

Specifying your own bridge

Using an OVS bridge

Using an OVS bridge to connect Docker hosts

OVS and Docker together

Container Linking and Docker DNS

Introduction

Verifying a host-based DNS configuration inside a container

Overriding the default name resolution settings

Configuring links for name and service resolution

Leveraging Docker DNS

Creating Docker DNS aliases

Securing Container Networks

Introduction

Enabling and disabling ICC

Disabling outbound masquerading

Managing netfilter to Docker integration

Creating custom iptables rules

Exposing services through a load balancer

Working with Weave Net

Introduction

Installing and configuring Weave

Running Weave-connected containers

Understanding Weave IPAM

Working with WeaveDNS

Weave security

Using the Weave network plugin

Working with Flannel

Introduction

Installing and configuring Flannel

Integrating Flannel with Docker

Using the VXLAN backend

Using the host gateway backend

Specifying Flannel options

Exploring Network Features

Introduction

Working with prerelease versions of Docker

Understanding MacVLAN interfaces

Working with the Docker MacVLAN network driver

Understanding IPVLAN interfaces

Working with the Docker IPVLAN network driver

Tagging VLAN IDs with MacVLAN and IPVLAN networks

Leveraging IPv6

Introduction

IPv6 command-line basics

Enabling IPv6 capabilities in Docker

Working with IPv6-enabled containers

Configuring NDP proxying

User-defined networks and IPv6

Troubleshooting Docker Networks

Introduction

Using tcpdump to verify network paths

Verifying VETH pairs

Verifying published ports and outbound masquerading

Verifying name resolution

Building a test container

Resetting the local Docker network database

Index

Customer Reviews

5 star

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Docker Networking Cookbook

All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without the prior written permission of the publisher, except in the case of brief quotations embedded in critical articles or reviews.

Every effort has been made in the preparation of this book to ensure the accuracy of the 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 companies and products mentioned in this book by the appropriate use of capitals. However, Packt Publishing cannot guarantee the accuracy of this information.

First published: November 2016

Production reference: 1231116

Published by Packt Publishing Ltd.

Livery Place

35 Livery Street

Birmingham B3 2PB, UK.

ISBN 978-1-78646-114-8

Docker Networking Cookbook

Docker Networking Cookbook

Overview of this book

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Docker Networking Cookbook

Docker Networking Cookbook