Puppet 5 Essentials Third Edition

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Puppet 5 Essentials

A Guide to managing servers and automation About This Book Breeze through Puppet's key features and performance improvements to bring real advantages to your IT infrastructure Discover Puppet best practices to help you avoid common mistakes and pitfalls Examples to help you get to grips with Puppet and succeed with everyday IT automation Who This Book Is For This book targets experienced IT professionals and new Puppet uses, who will learn all they need to know to go from installation to advanced automation. Get a rapid introduction to the essential topics and learn how to build best practices for advanced automation with Puppet. What You Will Learn Understand declarative configuration management Make use of GIT-based deployment workflows Extend Factor with secure elements Create modular and reusable Puppet code Extend your code base with publicly available Puppet modules Separate logic from data by using Hiera Understand and develop Puppet Roles and Profiles In Detail 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. Style and approach This book aims to impart all the knowledge required to tap into not only the basics of Puppet, but also its core. The basic ideas and principles of Puppet-based designs are explored and explained. Sophisticated tools are presented to enable you to use Puppet efficiently and productively.
Puppet 5 Cookbook

Author: Thomas Uphill
language: en
Publisher: Packt Publishing Ltd
Release Date: 2018-06-28
Write custom plugins for Puppet, including facts, providers, and functions Key Features Grasp recipes that work with centralized and decentralized deployments Explore language differences and enhancements anticipated in Puppet version 5.x Gain expert understanding of Puppet's latest and most advanced features Book Description Puppet is a configuration management system that automates all your IT configurations, giving you control of managing each node. Puppet 5 Cookbook will take you through Puppet's latest and most advanced features, including Docker containers, Hiera, and AWS Cloud Orchestration. Updated with the latest advancements and best practices, this book delves into various aspects of writing good Puppet code, which includes using Puppet community style, checking your manifests with puppet-lint, and learning community best practices with an emphasis on real-world implementation. You will learn to set up, install, and create your first manifests with version control, and also learn about various sysadmin tasks, including managing configuration files, using Augeas, and generating files from snippets and templates. As the book progresses, you'll explore virtual resources and use Puppet's resource scheduling and auditing features. In the concluding chapters, you'll walk through managing applications and writing your own resource types, providers, and external node classifiers. By the end of this book, you will have learned to report, log, and debug your system. What you will learn Discover the latest and most advanced features of Puppet Master techniques to deal with centralized and decentralized Puppet deployments Use exported resources and forge modules to configure and deploy applications Create efficient manifests to streamline your deployments Automate deployment of puppet environment using git-hooks Deploy AWS instances and Docker containers with Puppet Make Puppet reliable, performant, and scalable Who this book is for Puppet 5 Cookbook is for anyone who builds and administers servers, especially in a web operations context. You’ll need some experience of Linux systems administration, including familiarity with the command line, filesystem, and text editing. No prior programming experience is required.
Essentials of Educational Technology, 3rd Edition

Specially designed as a standard text for teacher training colleges, this book is essentially 'student-centred' and 'examination-oriented'. It has stood the test of time as it fully meets the changing needs of the students preparing for BEd, LT, BT and BA (Edu) examinations, and provides a comprehensive treatment of all topics on which questions are usually asked. The book aims at enabling students not only to have a complete grasp of the concepts, but also obtain maximum marks in the examinations. Practical approach of the book also makes it useful for in-service programmes for various categories of personnel in education, and its authoritative coverage makes it relevant in the Middle-East and South-East Asian countries. Readers will find it a trustworthy friend, philosopher and guide. The third edition accounts for the advances in technology during the last seven years (when this book was last revised) as also the changing educational system. NEW IN THE THIRD EDITION • Additional chapters on: ? Hardware Technology, Audio Visual Aids and Media in Education ? Computer and Computer Assisted Instruction (CAI) ? Software, Courseware Development and Design Considerations ? Internet and I-learning • Enlargement and subsequent splitting of the chapter on Mass Media into Mass Media-I and Mass Media-II—the second part to focus on TV • Augmented question bank at the end of chapters that includes objective-type questions, like MCQs and Fill in the blanks • Improved readability and presentation