Mastering Puppet - Second Edition

Master Puppet for configuration management of your systems in an enterprise deployment About This Book • This book is an advanced guide to using and deploying Puppet 4 in your organization with a special focus on issues faced in larger enterprise deployments • From an experienced author learn to deal with scaling performance and multiple developers with the help of real-world examples • This is the most up-to-date guide on Puppet and covers the advanced concepts of Puppet 4 Who This Book Is For This book is for those who have intermediate knowledge of Puppet and are looking to deploy it in their environment. Some idea how to write simple modules for configuration management with Puppet is a prerequisite for this book. What You Will Learn • Scale out your Puppet infrastructure using proxying techniques • Automate your code promotion workflow using Git and r10k • Solve real-world problems using public modules from the Puppet Forge • Use Hiera to separate the data of your configuration from the code of your configuration • Write your own custom facts in Ruby • Extend Puppet with your own custom facts modules and types • Use exported resources to orchestrate change between machines • Debug a puppetserver using Java techniques In Detail Puppet is a configuration management system and a language. It was written for and by system administrators to manage large numbers of systems efficiently and prevent configuration drifts. Mastering Puppet deals with the issues faced when scaling out Puppet to handle large numbers of nodes. It will show you how to fit Puppet into your enterprise and allow many developers to work on your Puppet code simultaneously. In addition you will learn to write custom facts and roll your own modules to solve problems. Next popular options for performing reporting and orchestration tasks will be introduced in this book. Moving over to troubleshooting techniques which will be very useful. The concepts presented are useful to any size organization. By the end of the book you will know how to deal with problems of scale and exceptions in your code automate workflows and support multiple developers working simultaneously. Style and approach This book is a step-wise guide packed with examples to help you configure complex systems in Puppet.