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Puppet 5 Cookbook

You're reading from Puppet 5 Cookbook Jump start your Puppet 5.x deployment using engaging and practical recipes

Product type Paperback

Published in Jun 2018

Publisher Packt

ISBN-13 9781788622448

Length 394 pages

Edition 4th Edition

Tools

Puppet

Concepts

Configuration Management

Author (1):

Thomas Uphill

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Table of Contents (16) Chapters

Title Page

Packt Upsell

Contributors

Preface

1. Puppet Language and Style FREE CHAPTER

2. Puppet Infrastructure

3. Writing Better Manifests

4. Working with Files and Packages

5. Users and Virtual Resources

6. Managing Resources and Files

7. Managing Applications

8. Servers and Cloud Infrastructure

9. External Tools and the Puppet Ecosystem

10. Monitoring, Reporting, and Troubleshooting

1. Other Books You May Enjoy

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Index

Using HAProxy to load balance multiple web servers

Load balancers are used to spread a load among a number of servers. Hardware load balancers are still somewhat expensive, whereas software balancers can achieve most of the benefits of a hardware solution.

HAProxy is the software load balancer of choice for most people: fast, powerful, and highly configurable.

My example Vagrantfile will be using Red Hat-based systems for this example, so we'll need to install the selinux module to configure SELinux:

t@mylaptop $ puppet module install puppet-selinux --modulepath ~/puppet/modules 
Notice: Preparing to install into /home/thomas/puppet/modules ... 
Notice: Downloading from https://forgeapi.puppet.com ... 
Notice: Installing -- do not interrupt ... 
/home/thomas/puppet/modules 
└─┬ puppet-selinux (v1.5.2) 
 └── puppetlabs-stdlib (v4.25.0)

How to do it...

In this recipe, I'll show you how to build an HAProxyserver to load balance web requests across web servers. We'll use exported resources to build...

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Authors (1)

Thomas Uphill

Thomas Uphill

Thomas Uphill (https://www.linkedin.com/in/thomasuphill) is a long-time user of Puppet. He has presented Puppet tutorials at LOPSA-East, Cascada, and PuppetConf. He has also been a system administrator for over 20 years, working primarily with RedHat systems; he is currently a RedHat Certified Architect (RHCA). When not running the Puppet User Group of Seattle (PUGS), he volunteers for the LOPSA board and his local LOPSA chapter, SASAG. He blogs at http://ramblings.narrabilis.com.

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