Book Image

Puppet 5 Essentials - Third Edition

By : Martin Alfke, Felix Frank
Book Image

Puppet 5 Essentials - Third Edition

By: Martin Alfke, Felix Frank

Overview of this book

Puppet is a configuration management tool that allows you to automate all your IT configurations, giving you control over what you do to each Puppet Agent in a network, and when and how you do it. In this age of digital delivery and ubiquitous Internet presence, it's becoming increasingly important to implement scaleable and portable solutions, not only in terms of software, but also the system that runs it. This book gets you started quickly with Puppet and its tools in the right way. It highlights improvements in Puppet and provides solutions for upgrading. It starts with a quick introduction to Puppet in order to quickly get your IT automation platform in place. Then you learn about the Puppet Agent and its installation and configuration along with Puppet Server and its scaling options. The book adopts an innovative structure and approach, and Puppet is explained with flexible use cases that empower you to manage complex infrastructures easily. Finally, the book will take readers through Puppet and its companion tools such as Facter, Hiera, and R10k and how to make use of tool chains.
Table of Contents (10 chapters)

Setting up the Puppet agent

As was explained earlier, the master mainly serves instructions to agents in the form of catalogs that are compiled from the manifest. You have also prepared a node block for your first agent in the master manifest.

Installing the agent software is easy; you did this at the start of Chapter 1, Writing Your First Manifests. The plain Puppet package that allows you to apply a local manifest contains all the required parts in order to operate a proper agent.

If you are using Puppet Labs packages, use the instructions from earlier in this chapter. On agent machines, you need not install the puppetserver package. Just get puppet-agent instead.

After a successful package installation, one needs to specify where puppet agent can find the puppet server:

root@puppetmaster # puppet config set –-section agent server