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Presented in an easy-to-follow, step-by-step tutorial format and packed with examples, this book will lead you through making the best out of Puppet in an enterprise environment. If you are a system administrator or developer who has used Puppet in production and are looking for ways to easily use Puppet in an enterprise environment, this book is for you. This book assumes an intermediate knowledge of Puppet and is intended for those writing modules or deploying Puppet in an enterprise environme...

Leverage the power of Elixir programming language to solve practical problems associated with scalability, concurrency, fault tolerance, and high availability.Key FeaturesEnhance your Elixir programming skills using its powerful tools and abstractionsDiscover how to develop a full-fledged file serverUnderstand how to use Phoenix to create a web interface for your application.Book DescriptionRunning concurrent, fault-tolerant applications that scale is a very demanding responsibility. After learn...

Start performing integration testing with Capybara immediately. This book will get you up and running quickly and assumes no knowledge or experience of the technology. This book is for developers and testers who have had some exposure to Ruby but who want to know how to test their applications using Capybara and its compatible drivers, such as Selenium-Webdriver and Rack-Test. The examples are deliberately kept simple and example HTML mark-up is always included so that you can copy the examples...

This book is a clear, detailed and practical guide to learn about designing and deploying you puppet architecture, with informative examples to highlight and explain concepts in a focused manner. This book is designed for users who already have good experience with Puppet, and will surprise experienced users with innovative topics that explore how to design, implement, adapt, and deploy a Puppet architecture. The key to extending Puppet is the development of types and providers, for which you mu...

This is an easy-to follow manual that will guide you through the entire process of application development with Shopify, beginning with the installation and configuration of your local development environment for your app to the deployment of the app to Heroku. If you are a web developer or a designer who wants to extend Shopify stores by building apps, then this book is for you. A basic understanding of programming concepts and some familiarity with Shopify is all that is required to get starte...

An expert guide to helping you use DevOps techniques with the latest GitLab version to optimize and manage your software workflowKey FeaturesDelve into GitLab's architecture, and install and configure it to fit your environmentLearn about the underlying principles of Agile software development and DevOpsExplore Gitlab's features to manage enterprise cloud-native applications and servicesBook DescriptionGitLab is an open source repository management and version control toolkit with functions for...