Informatyka
Miguel Pérez Colino, Sergio Ocón Cárdenas, Pablo...
Mastering enterprise Linux administration can be overwhelming without guidance, especially for those targeting the SUSE Certified Administrator (SCA) certification or managing critical IT infrastructures. This practical guide offers the complete skillset required to confidently operate, secure, and maintain SUSE Linux Enterprise Server (SLES) 16. Written by senior SUSE product experts, this book helps you deploy physical and cloud systems, configure software and networking, secure services using firewalld and SELinux, and manage storage using BTRFS and LVM. With step-by-step instructions, real-world examples, and detailed chapters on automation with system roles and containers with Podman, you’ll build confidence across core Linux administration topics. You’ll also gain hands-on practice with system snapshots, kernel tuning, and AI with mcphost. It also includes a brief introduction to SLES 4 SAP-specific features. You'll learn how to configure services, harden systems, automate infrastructure with tools like Agama, Cockpit, and System Roles.This is the only official guide for SLE administrators and engineers, providing trusted insight you will not find anywhere else. By the end, you will be well-equipped to manage SLES systems in enterprise environments and approach the SCA certification with confidence.
Sustainable Cloud Development. Optimize cloud workloads for environmental impact in the GenAI era
Parth Girish Patel, Ishneet Kaur Dua, Steven...
Written by three seasoned AWS solution architects, sustainability mentors, and thought leaders, Sustainable Cloud Development equips cloud professionals with actionable strategies to design, build, and optimize workloads that minimize environmental impact, while maintaining performance and scalability.This book combines practical insights, best practices, and case studies to help you align your cloud operations with global sustainability goals. From foundational concepts such as carbon footprint measurement to advanced techniques such as sustainable software architecture, generative AI lifecycle optimization, and cost-efficient cloud practices, this book covers every aspect of sustainable cloud development. You’ll get to grips with key tools, including AWS Cost Explorer, for analyzing costs and usage over time to right-size deployments; auto scaling for automatically scaling compute resources dynamically based on demand; Amazon Trusted Advisor for reviewing optimization recommendations across critical areas such as cost, performance, and security; and Amazon CloudWatch for detailed monitoring and threshold-based alerting around all resources and applications.This book serves as a practical blueprint for optimizing your cloud workloads for both high performance and a minimal environmental footprint.
Niklas Sundberg, Richard Pastore, David Entwistle, Dr....
While the climate crisis poses a threat to planetary health, digital transformation continues to reshape our societies. The challenge for technology leaders is no longer understanding why sustainability matters but knowing how to take decisive, responsible action. This book gives you the clarity, confidence, and tools to drive meaningful change.Updated with the latest trends, case studies, and insights, including responsible and sustainable AI lifecycle governance, it walks you through every stage of developing and implementing a sustainable IT strategy.The book is structured in three parts. Part 1 explores the “why,” grounding you in the reality of the urgent climate crisis we face today, how we arrived here, the planetary boundaries we must restore, and the broader impact of IT on society. Part 2 covers the “what,” outlining the practical actions you can take to drive meaningful returns on sustainable investments and build a greener future. Part 3 focuses on the “how,” establishing baselines, setting direction, and applying real-world case studies to help you translate intent to impactful global outcomes.Whether you’re building a sustainability strategy from the ground up or enhancing existing initiatives, this book prepares you to lead the way with confidence and deliver outcomes that matter.
Niklas Sundberg
We are at a critical point in human history. Humanity is under threat, but all is not lost. We can take action! But how?Sustainable IT Playbook for Technology Leaders will show you how. It will walk you through the construction and implementation of a sustainable IT strategy and enable you to do your bit for the future of mankind.The book is split into three parts. Part I details the “why” and the clear and present danger that humanity faces today: the climate crisis. How did we get here, what are the immediate threats, what are the planetary boundaries that we need to peel back to safe levels, and what impact does IT have on society at large? Part II will focus on the what.” It examines the nitty-gritty details of what we can do to unlock significant returns on sustainable investments toward a more sustainable future. Part III, the final part of the book, focuses on the “how.” How do you turn your ideas into action? What do you need to do to establish your baseline and your direction of travel towards your objective? This part provides tangible case studies and explains how you can start your journey today to begin delivering global and impactful objectives.By the end of this book, you’ll be able to plan, implement, and communicate a sustainable IT strategy and set yourself apart as a progressive technology leader.
Daniel Irvine
Svelte is a popular front-end framework used for its focus on performance and user-friendliness, and test-driven development (TDD) is a powerful approach that helps in creating automated tests before writing code. By combining them, you can create efficient, maintainable code for modern applications. Svelte with Test-Driven Development will help you learn effective automated testing practices to build and maintain Svelte applications.In the first part of the book, you’ll find a guided walkthrough on building a SvelteKit application using the TDD workflow. You’ll uncover the main concepts for writing effective unit test cases and practical advice for developing solid, maintainable test suites that can speed up application development while remaining effective as the application evolves. In the next part of the book, you’ll focus on refactoring and advanced test techniques, such as using component mocks and writing BDD-style tests with the Cucumber.js framework. In the final part of the book, you’ll explore how to test complex application and framework features, including authentication, Svelte stores, and service workers.By the end of this book, you’ll be well-equipped to build test-driven Svelte applications by employing theoretical and practical knowledge.
Dylan Hildenbrand
The JavaScript ecosystem has grown vast, complex, and daunting for newcomers. Fortunately, SvelteKit has emerged, simplifying the process of building JavaScript-based web applications. This book aims to demystify SvelteKit, making it as approachable as it makes web app development.With SvelteKit Up and Running you’ll be introduced to the philosophy and technologies underlying SvelteKit. First, you’ll follow a standard educational programming approach, progressing to a 'Hello World' application. Next, you’ll explore the fundamental routing techniques, data loading management, and user submission, all through real-world scenarios commonly encountered in day-to-day development, before discovering various adapters employed by SvelteKit to seamlessly integrate with diverse environments. You’ll also delve into advanced concepts like dynamic route management, error handling, and leveraging SvelteKit to optimize SEO and accessibility.By the end of this book, you’ll have mastered SvelteKit and will be well-equipped to navigate the complexities of web app development.
Swift 2 Blueprints. Swift Blueprints
Cecil Costa
In this book, you will work through seven different projects to get you hands-on with developing amazing applications for iOS devices. We start off with a project that teaches you how to build a utility app using Swift. Moving on, we cover the concepts behind developing an entertainment or social networking related application, for example, a small application that helps you to share images, audio, and video files from one device to another. You’ll also be guided through create a city information app with customized table views, a reminder app for the Apple Watch, and a game app using SpriteKit.By the end of this book, you will have the required skillset to develop various types of iOS applications with Swift that can run on different iOS devices. You will also be well versed with complex techniques that can be used to enhance the performance of your applications.
Swift 2 Design Patterns. Build robust and scalable iOS and Mac OS X game applications
Julien Lange
Swift is a multi-paradigm language. It has expressive features familiar to those used to work with modern functional languages, while also keeping the object-oriented features of Objective-C. It remains compatible with Apple’s legacy codes and frameworks. A design pattern systematically names, motivates, and explains a general design that addresses a recurring design problem in object-oriented systems. It describes the problem, the solution, when to apply the solution, and its consequences. It also gives implementation hints and examples. Knowledge about design patterns is also one of the best ways to make you different compared to other low-level developers.This book shows you how to use Swift 2 to learn about 23 Gang of Four (GoF) design patterns, and is organized into three categories. The book will present you the five creational patterns, followed by the seven structural patterns, and finishing with the 11 behavioral patterns as defined by the GoF. Each chapter will introduce the pattern by defining its role, which common problems the pattern should be used for, its generic UML representation, how each objects presented in the class diagram participate in the pattern, and what the role of each of these objects is. The book then presents you with a concrete case as an illustration that will be used to implement the pattern using Swift.