Puppet for ContainerizationThis book teaches you how to take advantage of the new benefits of containerization systems such as Docker, Kubernetes, Docker Swarm, and Docker UCP, without losing the panoptical power of proper configuration management.
You will learn how to integrate your containerized applications and modules with your Puppet workflow. You will also understand how to manage, monitor, and orchestrate hosts to keep deployed containers running seamlessly. With the help of this book, you can efficiently automate and document with containers, as a part of your system.
The book will also cover use cases of deploying Puppet within a containerized environment. ...
Rails 5 RevealedThis short early adopter book details both how you'll upgrade existing web and other applications from Rails 4.2 to 5 and how to create new applications in Rails 5. The headline features, Rails API and ActionCable, are each looked at in detail, building small example projects to demonstrate how to build a JSON API, add real-time notifications to a page and how to create a single-page application.
All the breaking changes are shown, along with how to fix your app to work with the new API, and the improvements to ActiveRecord and the testing framework are fully detailed. After reading and using Rails 5 Revealed, you'll be poised to move forward with building your apps with the new Rails 5 as it stands now and when it finalizes. ...
Rails, Angular, Postgres, and BootstrapAs a Rails developer, you care about user experience and performance, but you also want simple and maintainable code. Achieve all that by embracing the full stack of web development, from styling with Bootstrap, building an interactive user interface with AngularJS, to storing data quickly and reliably in PostgreSQL. Take a holistic view of full-stack development to create usable, high-performing applications, and learn to use these technologies effectively in a Ruby on Rails environment. ...
React Native for iOS DevelopmentThis book is your hands-on guide to developing native iOS apps with ease. With React Native for iOS Development you'll challenge the status quo of native iOS development with revolutionary components, asynchronous execution, unique methods for touch handling, and much more.
You will begin by understanding the path breaking concepts of React.js, which makes it distinctive. You will set up React Native and begin exploring the anatomy of React Native apps. You'll also learn about flux architecture, how it differs from MVC, and how you can include it in your React Native project to solve problems differently and efficiently. Next, you will learn to create stunning user interfaces and interact with various device capabilities. You will then boost your development by including some popular packages already developed by the React Native community that will helps you write less but do more. Finally, you'll learn to how write test cases and submit your application to App Store.
Using real ...
Rolling Out 5GThis book describes insufficiencies and challenges of 4G in the light of impending and crucial future communication needs, details lessons learned from an implementation and system operation background, and illustrates the way towards the next generation – 5G. Key changes and additions to 5G in terms of use cases, applications for and explorations of the technology are discussed.
Among all of the technological disruptions, the book features detailed coverage of two stand out in particular – mmWave and spectrum sharing technologies including the evolution of LTE Advanced Pro.
The authors are highly experienced experts with valuable know-how in the field of wireless communications related research projects defining future technological trends. This unique group of talents will be able to consider the 5G technology evolution from all angles mentioned: long-term research, standardization and regulation, product design and marketization. This approach allows this much-needed book ...
RSpec EssentialsThis book will teach you how to use RSpec to write high-value tests for real-world code. We start with the key concepts of the unit and testability, followed by hands-on exploration of key features. From the beginning, we learn how to integrate tests into the overall development process to help create high-quality code, avoiding the dangers of testing for its own sake.
We build up sample applications and their corresponding tests step by step, from simple beginnings to more sophisticated versions that include databases and external web services. We devote three chapters to web applications with rich JavaScript user interfaces, building one from the ground up using behavior-driven development (BDD) and test-driven development (TDD).
The code examples are detailed enough to be realistic while simple enough to be easily understood. Testing concepts, development methodologies, and engineering tradeoffs are discussed in detail as they arise. This approach is designed to foster the rea ...
SAP Project Management PitfallsMaster the SAP product ecosystem, the client environment, and the feasibility of implementing critical business process with the required technical and functional configuration. SAP Project Management Pitfalls is the first book to provide you with real examples of the pitfalls that you can avoid, providing you with a road-map to a successful implementation.
Jay Kay, a SAP Program Manager for Capgemini, first takes a deep dive into common pitfalls in implementing SAP ERP projects in a complex IT landscape. You will learn about the potential causes of failures, study a selection of relevant project implementation case studies in the area, and see a range of possible countermeasures. Jay Kay also provides background on each - the significance of each implementation area, its relevance to a service company that implements SAP projects, and the current state of research. ...
Securing PHP AppsSecure your PHP-based web applications with this compact handbook. You'll get clear, practical and actionable details on how to secure various parts of your PHP web application. You'll also find scenarios to handle and improve existing legacy issues.
Is your PHP app truly secure? Let's make sure you get home on time and sleep well at night. Learn the security basics that a senior developer usually acquires over years of experience, all condensed down into one quick and easy handbook. Do you ever wonder how vulnerable you are to being hacked? Do you feel confident about storing your users' sensitive information? Imagine feeling confident in the integrity of your software when you store your users' sensitive data. No more fighting fires with lost data, no more late nights, your application is secure.
Well, this short book will answer your questions and give you confidence in being able to secure your and other PHP web apps. ...
tmux 2You have a database console, web server, test runner, and text editor running at the same time, but switching between them and trying to find what you need takes up valuable time and breaks your concentration. By using tmux 2.3, you can improve your productivity and regain your focus. This book will show you how.
This second edition includes many features requested by readers, including how to integrate plugins into your workflow, how to integrate tmux with Vim for seamless navigation - oh, and how to use tmux on Windows 10.
Use tmux to manage multiple terminal sessions in a single window using only your keyboard. Manage and run programs side by side in panes, and create the perfect development environment with custom scripts so that when you're ready to work, your programs are waiting for you. Manipulate text with tmux's copy and paste buffers, so you can move text around freely between applications. Discover how easy it is to use tmux to collaborate remotely with others, and ex ...
Take My MoneyAn e-commerce payment application is literally rewarding to build - you can see the return on investment as genuine money is added to your account. But it can be stressful to manage, with security and compliance concerns and administration issues. And your entire business may depend on these features working smoothly.
Let Noel Rappin guide you through the setup and complications of dealing with online financial transactions.
Go beyond just the interaction with the gateway service and build an application using Ruby and Rails that will be robust and useful over time. Set up a Stripe and PayPal payment gateway and accept credit card payments. Use the Stripe API to improve security by validating credit card data without sending it through your own server. Design your application for maximum flexibility against the inevitable complexities of business logic, including handling discounts. Manage the multiple failure points of dealing with payment gateways and test for failure cases. Us ...