Get unstuck and start stacking! About This Book Easily fix the nagging problems that commonly plague OpenStack and become the go-to person in your organization Get better equipped to troubleshoot and solve common problems in performance, availability, and automation that confront production-ready OpenStack environments Save time and decrease frustration by solving significant issues that arise from OpenStack deployments pertaining to storage and networking Who This Book Is For You will need a basic understanding of OpenStack, Linux, and Cloud computing. If you have an understanding of Linux, this book will help you leverage that knowledge in the world of OpenStack, giving you confidence to tackle most issues that may arise. What You Will Learn Diagnose and remediate authentication and authorization problems in Keystone Fix common issues with images served through Glance Master the art of troubleshooting Neutron networking Navigate and overcome problems with Nova Troubleshoot and resolve Cinder block storage issues Identify and correct Swift object storage problems Isolate and fix issues caused by Heat orchestration Leverage Ceilometer and other metering and monitoring tools for effective troubleshooting In Detail OpenStack is a collection of software projects that work together to provide a cloud fabric. OpenStack is one of the fastest growing open source projects in history that unlocks cloud computing for everyone. With OpenStack, you are able to create public or private clouds on your own hardware. The flexibility and control afforded by OpenStack puts the cloud within reach of anyone willing to learn this technology. Starting with an introduction to OpenStack troubleshooting tools, we’ll walk through each OpenStack service and how you can quickly diagnose, troubleshoot, and correct problems in your OpenStack. Understanding the various projects and how they interact is essential for anyone attempting to troubleshoot an OpenStack cloud. We will start by explaining each of the major components and the dependencies between them, and move on to show you how to identify and utilize an effective set of OpenStack troubleshooting tools and fix common Keystone problems. Next, we will expose you to common errors and problems you may encounter when using the OpenStack Block Storage service (Cinder). We will then examine Heat, the OpenStack Orchestration Service, where you will learn how to trace errors, determine their root cause, and effectively correct the issue. Finally, you will get to know the best practices to architect your OpenStack cloud in order to achieve optimal performance, availability, and reliability. Style and approach This is straight-to-the point guide to fixing your OpenStack cluster. Common problems are identified and suggestions to resolve these problems are presented in a simple, easy-to-understand manner.

Over 50 practical recipes that will help you realize the full potential of Magento in order to build a professional online store About This Book Take advantage of the latest features in Magento 2 to set up an e-commerce store that fits your business needs Packed with several advanced recipes, not just to manage your online store, but to extend and design it as well Written in a cookbook style, you can pick and choose your recipe to carry out your day- to- day Magento store tasks Who This Book Is For The book is for existing Magento users who want to gain further expertise and insights into managing, designing, and extending their online store in Magento to fit their business needs. Working knowledge of Magento and basic familiarity with programming is expected. What You Will Learn Set up a Magento 2 project on Apache or Nginx. Transfer your Magento 1 database to Magento 2 using the Magento 2 system tools. Boost the performance of Magento 2 by enabling different types of caching. Build a Magento 2 multi-store by creating a root catalog, subdirectories, and products. Create and manage pages, blocks, and front-end apps. Manage your Magento store by setting up the correct TAX rules. Design custom themes within the Magento 2 framework. Create basic and advanced extensions using Magento 2. In Detail Magento 2 is an open source e-commerce platform that has all the functionality to function from small to large online stores. It is preferred by developers and merchants due to its new architecture, which makes it possible to extend the functionalities with plugins, a lot of which are now created by the community. This merchant and developer guide is packed with recipes that cover all aspects of Magento 2. The recipes start with simple how-to’s then delve into more advanced topics as the book progresses. We start with the basics of setting up a Magento 2 project on Apache or Nginx. Next, you will learn about basics including system tools and caching to get your Magento 2 system ready for the real work. We move on to simple tasks such as managing your store and catalog configuration. When you are familiar with this, we cover more complex features such as module and extension development. Then we will jump to the final part: advanced Magento 2 extensions. By the end of this book, you’ll be competent with all the development phases of Magento 2 and its most common elements. Style and approach Step by step guide for real world tasks for Magento users to gain a more advanced insight on managing, extending and designing their e-commerce store to fit their business needs.

Employ the most advanced pentesting techniques and tools to build highly-secured systems and environments About This Book Learn how to build your own pentesting lab environment to practice advanced techniques Customize your own *s, and learn methods to exploit 32-bit and 64-bit programs Explore a vast variety of stealth techniques to bypass a number of protections when penetration testing Who This Book Is For This book is for anyone who wants to improve their skills in penetration testing. As it follows a step-by-step approach, anyone from a novice to an experienced security tester can learn effective techniques to deal with highly secured environments. Whether you are brand new or a seasoned expert, this book will provide you with the skills you need to successfully create, customize, and plan an advanced penetration test. What You Will Learn A step-by-step methodology to identify and penetrate secured environments Get to know the process to test network services across enterprise architecture when defences are in place Grasp different web application testing methods and how to identify web application protections that are deployed Understand a variety of concepts to exploit software Gain proven post-exploitation techniques to exfiltrate data from the target Get to grips with various stealth techniques to remain undetected and defeat the latest defences Be the first to find out the latest methods to bypass firewalls Follow proven approaches to record and save the data from tests for analysis In Detail The defences continue to improve and become more and more common, but this book will provide you with a number or proven techniques to defeat the latest defences on the networks. The methods and techniques contained will provide you with a powerful arsenal of best practices to increase your penetration testing successes. The processes and methodology will provide you techniques that will enable you to be successful, and the step by step instructions of information gathering and intelligence will allow you to gather the required information on the targets you are testing. The exploitation and post-exploitation sections will supply you with the tools you would need to go as far as the scope of work will allow you. The challenges at the end of each chapter are designed to challenge you and provide real-world situations that will hone and perfect your penetration testing skills. You will start with a review of several well respected penetration testing methodologies, and following this you will learn a step-by-step methodology of professional security testing, including stealth, methods of evasion, and obfuscation to perform your tests and not be detected! The final challenge will allow you to create your own complex layered architecture with defences and protections in place, and provide the ultimate testing range for you to practice the methods shown throughout the book. The challenge is as close to an actual penetration test assignment as you can get! Style and approach The book follows the standard penetration testing stages from start to finish with step-by-step examples. The book thoroughly covers penetration test expectations, proper scoping and planning, as well as enumeration and foot printing

Learn to design, build, and manage your infrastructure on the most popular of all the Cloud platforms—Amazon Web ServicesAbout This BookLearn how to leverage various Amazon Web Services (AWS) components and services to build a secure, reliable, and robust environment to host your applications onDeep dive into the core AWS service offerings with hands-on tutorials, real-world use case scenarios, and best practicesA self-paced, systematic, and step-by-step guide to learning and implementing AWS in your own environmentWho This Book Is ForThis book is for those who want to learn and leverage AWS. Although no prior experience with AWS is required, it is recommended that you have some hands-on experienceofLinux, Web Services, and basic networkingWhat You Will LearnA brief introduction to Cloud Computing and AWS accompanied by steps to sign up for your first AWS accountCreate and manage users, groups, and permissions using AWSS Identity and Access Management servicesGet started with deploying and accessing EC2 instances, working with EBS Volumes and SnapshotsCustomize and create your very own Amazon Machine ImageDesign and deploy your instances on a highly secured, network isolated environment using Amazon VPCEffectively monitor your AWS environment using specialized alarms, custom monitoring metrics, and much moreExplore the various benefits of Database-as-a-Service offerings and leverage them using Amazon RDS and Amazon DynamoDBTake an in-depth look at what’s new with AWS, including EC2 Container Service and Elastic File SystemIn DetailAWS is at the forefront of Cloud Computing today. Many businesses are moving away from traditional datacenters and toward AWS because of its reliability, vast service offerings, lower costs, and high rate of innovation. Because of its versatility and flexible design, AWS can be used to accomplish a variety of simple and complicated tasks such as hosting multitier websites, running large scale parallel processing, content delivery, petabyte storage and archival, and lots more.Whether you are a seasoned sysadmin or a rookie, this book will provide you with all the necessary skills to design, deploy, and manage your applications on the AWS cloud platform. The book guides you through the core AWS services such as IAM, EC2, VPC, RDS, and S3 using a simple real world application hosting example that you can relate to. Each chapter is designed to provide you with the most information possible about a particular AWS service coupled with easy to follow hands-on steps, best practices, tips, and recommendations.By the end of the book, you will be able to create a highly secure, fault tolerant, and scalable environment for your applications to run on.Style and approach This in-depth and insightful guide is filled with easy-to-follow examples, real-world use cases, best practices, and recommendations that will help you design and leverage AWS.

Enter the era of medical research using mobile devices with the help of this guide on ResearchKit!About This BookCreate a simple clinical research app using most aspects of ResearchKitBuild a simple survey with various data types with the results printed on the screen.A step-by-step guide introducing Apple's ResearchKit and techniques to incorporate it into various apps.Who This Book Is ForThis book is aimed at medical researchers with basic iOS coding knowledge and iOS developers looking to create clinical research apps.What You Will LearnLearn to create customized consent formGet introduced to two backend services: a simple backend server using Sinatra and Sage BridgeBuild a custom task (a conditional survey example) and a navigable taskGet an Overview of ResearchKit's open source repository and App CoreInteraction with the hardware of the device including the gyro and the motion sensorsLearn the basics of this revolutionary technologyGet introduced to the barebones app and learn to write your first codeIn DetailResearchKit is an open source software development framework from Apple that lets you easily create mobile applications for clinical research studies. ResearchKit provides you the ability to orchestrate the administration of tasks and recording of the results. ResearchKit provides tasks in order to perform informed consent, active tasks, and surveys.Starting with the basics of the ResearchKit framework, this books walks you through the steps of creating iOS applications that could serve as the basis of a clinical research mobile app.This book will introduce readers to ResearchKit and how to turn your iPhone into into a clinical research tool. The book will start off by installing and building the research framework in line with the researcher's needs; during this, the reader will learn to embed ResearchKit in the application and create a small task.After this, the book will go a little deeper into creating modules for surveys, consents, and so on. The book will also cover the various aspects of privacy and security with regard to participant data, and how to build dashboards for visualizing medical data and results in line with the researcher's requirements: data backends, JSON serialization and deserialization, and so on.Readers will be able to fully utilize ResearchKit for medical research, will be able to get more and more patients to participate in their surveys, and will gain insights from the surveys using the dashboards created.Style and approachA hands-on guide with ample screenshots for you to follow and learn about ResearchKit. Each topic is explained sequentially and placed in context so that you can get a better understanding of every step in the process of creating clinical research apps.

Develop games for iOS and Android using Cocos2d with the aid of over 70 step-by-step recipesAbout This BookLearn to efficiently use Cocos2d to develop cross-platform games, and have them work on iOS as well as AndroidGet acquainted with industry-wide professional tools such as Glyph Designer, Texture Packer, and Physics Editor, as well as using the Swift/ Sprite builder implementation of Cocos2dUse the easy-to-follow recipes to develop as well as deploy games to the Playstore and the App StoreWho This Book Is ForThis book is for intermediate game developers and especially the ones who are generally curious to find out what’s new in Cocos2d v 3.3.What You Will LearnBuild custom sprites with custom animations for the gameBuild interactivity into your game by adding gestures and touch interactionsUnderstand AI enemy programming and path finding to make games more excitingAdd physics to your game to make it more lively and interactiveGet familiar with the Swift and Sprite builder implementations along with Objective-C programmingPerform hassle-free deployment of games built in iOS onto AndroidAdd effects and particle systems to make the game more colorfulIn DetailCocos2d is the world’s leading game development framework for developing iOS games. With the introduction of Swift and Spritebuilder, it has become easier than ever to develop the games of your dreams without much effort. With Cocos2d, you can also deploy the game on Android, thereby maximizing profit and reducing development and porting costs.The book starts off with a detailed look at how to implement sprites and animations into your game to make it livelier. You will then learn to add scenes to the game such as the gameplay scene and options scene and create menus and buttons in these scenes, as well as creating transitions between them. From there on, you will get an understanding of how to program user interactions such as tapping, holding, and swiping. You’ll then add accelerometer inputs and physics to the scene, and make objects respond back to the inputs. A game is practically incomplete without audio being added, so this will be covered next.The next section will include ways to add Artificial Intelligence to enemies in the game, allowing them to patrol, chase, and shoot in a projectile manner. You will then learn to use NSUserDefault to save and load game progress, and create and access files using JSON, Plist, and XML files for custom storage and retrieval of data. Then you will learn to add dynamic lighting to your game and will use industry-wide tools such as Texture Packer, Glyph Designer, Physics Editor, Particle Designer, and Sprite Illuminator to create more visually appealing and performance-optimized games.Towards the end of the book, we dive into Apple’s latest programming language—Swift, highlighting the major differences between Objective C and Swift. The book culminates with taking your existing game developed for iOS and porting it to Android, showing you how to install the Android Xcode plugin as well.Style and approachThe book is written in an extremely lucid and step-by-step manner; it can be understood easily by anyone. The topics included are broken down into individual chapters so you can refer to the specific chapter to get answers on the subject you are interested in.

Discover how to build iOS and watchOS applications in Swift 2 using XcodeAbout This BookGets you up and running with Swift programming without any prior iOS development experience.A fast paced guide showing best practices and lets you get up to speed with Swift to quickly build your own iOS applicationsA unique practical approach to make your life with Swift easy.Who This Book Is ForAre you interested in learning SwiftDo you want to write iOS applications in SwiftIf yes, then this is the book for you. No prior iOS programming experience is assumed; however, having some experience with any programming language will be beneficial.What You Will LearnDive into Swift and explore its innovative and powerful syntaxWork with Swift in Xcode to get a unique and productive approach to developmentFind out how to create complete iOS applicationsDiscover rapid prototyping with a Swift playgroundGet to know how to use the Swift storyboard to develop multi-page applicationsGet to grips with parsing JSON and XML data from network sourcesBuild a network client for GitHub repositories, with full source code on GitHubIn DetailSwift was considered one of the biggest innovations last year, and certainly with Swift 2 announced at WWDC in 2015, this segment of the developer space will continue to be hot and dominating.This is a fast-paced guide to provide an overview of Swift programming and then walks you through in detail how to write iOS applications. Progress through chapters on custom views, networking, parsing and build a complete application as a Git repository, all by using Swift as the core languageStyle and approachThis fast-paced practical guide will quickly give you hands-on experience with all the features of Swift programming. Following the practical examples in the book will help you successfully create your own iOS applications.

Acclaimed New York Times bestselling author Thanhha Lai won the National Book Award for Young People's Literature and the Newbery Honor for her debut novel, Inside Out and Back Again. This collection includes Inside Out and Back Again along with her newest novel, Listen, Slowly. Inside Out and Back Again: Inspired by the author's childhood experience of fleeing Vietnam after the Fall of Saigon and immigrating to Alabama, this coming-of-age debut novel told in verse has been celebrated for its touching child's-eye view of family and immigration. For all the ten years of her life, Hà has only known Saigon: the thrills of its markets, the joy of its traditions, and the warmth of her friends close by. But now the Vietnam War has reached her home. Hà and her family are forced to flee as Saigon falls, and they board a ship headed toward hope. In America, Hà discovers the foreign world of Alabama: the coldness of its strangers, the dullness of its food . . . and the strength of her very own family.Listen, Slowly: Twelve-year-old Mia's parents are sending her, along with her father, on a trip to Vietnam so she can learn more about her roots—and also help her grandmother figure out what really happened to Mia's grandfather during the Vietnam War. Since Mia barely knows the language or customs, she is desperately counting down the days until she can go back home. But the next few weeks are a life-changing experience. As time passes, Mia begins to have a change of heart, growing closer to her family and developing an understanding of a culture and an entire world which that she never really knew about.

Master the advanced concepts of PL/SQL for professional-level certification and learn the new capabilities of Oracle Database 12cAbout This BookLearn advanced application development features of Oracle Database 12c and prepare for the 1Z0-146 examinationBuild robust and secure applications in Oracle PL/SQL using the best practicesPacked with feature demonstrations and illustrations that will help you learn and understand the enhanced capabilities of Oracle Database 12cWho This Book Is ForThis book is for Oracle developers responsible for database management. Readers are expected to have basic knowledge of Oracle Database and the fundamentals of PL/SQL programming. Certification aspirants can use this book to prepare for 1Z0-146 examination in order to be an Oracle Certified Professional in Advanced PL/SQL.What You Will LearnLearn and understand the key SQL and PL/SQL features of Oracle Database 12cUnderstand the new Multitenant architecture and Database In-Memory option of Oracle Database 12cKnow more about the advanced concepts of the Oracle PL/SQL language such as external procedures, securing data using Virtual Private Database (VPD), SecureFiles, and PL/SQL code tracing and profilingImplement Virtual Private Databases to prevent unauthorized data accessTrace, analyze, profile, and debug PL/SQL code while developing database applicationsIntegrate the new application development features of Oracle Database 12c with the current conceptsDiscover techniques to analyze and maintain PL/SQL codeGet acquainted with the best practices of writing PL/SQL code and develop secure applicationsIn DetailOracle Database is one of the most popular databases and allows users to make efficient use of their resources and to enhance service levels while reducing the IT costs incurred. Oracle Database is sometimes compared with Microsoft SQL Server, however, Oracle Database clearly supersedes SQL server in terms of high availability and addressing planned and unplanned downtime. Oracle PL/SQL provides a rich platform for application developers to code and build scalable database applications and introduces multiple new features and enhancements to improve development experience.Advanced Oracle PL/SQL Developer's Guide, Second Edition is a handy technical reference for seasoned professionals in the database development space. This book starts with a refresher of fundamental concepts of PL/SQL, such as anonymous block, subprograms, and exceptions, and prepares you for the upcoming advanced concepts. The next chapter introduces you to the new features of Oracle Database 12c, not limited to PL/SQL. In this chapter, you will understand some of the most talked about features such as Multitenant and Database In-Memory. Moving forward, each chapter introduces advanced concepts with the help of demonstrations, and provides you with the latest update from Oracle Database 12c context. This helps you to visualize the pre- and post-applications of a feature over the database releases. By the end of this book, you will have become an expert in PL/SQL programming and will be able to implement advanced concepts of PL/SQL for efficient management of Oracle Database.Style and approach The book follows the structure of the Oracle Certification examination but doesn't restrict itself to the exam objectives. Advanced concepts have been explained in an easy-to-understand style, supported with feature demonstrations and case illustrations.

A master storyteller’s vision reawakens us to the human experience in this diverse, haunting, and unexpectedly humorous new collection of short fiction from Simon Van Booy—his first since Love Begins in Winter, winner of the Frank O’Connor International Short Story Award.“She believed it was a gift to never truly know the self. We are not who we think we are, nor how others see us. Long before death, we die a thousand times at the hands of a definition.”In his first book of short stories since Love Begins in Winter, for which he won the Frank O’Connor International Short Story Award), bestselling author Simon Van Booy offers a collection of stories highlighting how human genius can emerge through acts of compassion. Through characters including an eccentric film director, an aging Cockney bodyguard, the teenage child of Nigerian immigrants, a divorced amateur magician from New Jersey, and a Beijing street vendor who becomes an overnight billionaire, Tales of Accidental Genius contemplates individuals from different cultures, races—rich and poor, young and old—and reveals how faith and yearning for connection helps us all transcend darkness of fear and misfortune.

The long-awaited return of a writer of rare emotional wisdomThe son of an aging fisherman becomes ensnared in a violent incident that forces him to confront his broken relationship with his father. A woman travels halfway across the country to look for her ex-husband, only to find her attention drawn in a surprising direction. A millworker gives safe harbor to his son's pregnant girlfriend, until an ambiguous gesture upsets their uneasy equilibrium. These and other stories—of yearning, loss, and tentative new connections—come together in Mendocino Fire, the first new collection in two decades from the widely admired Elizabeth Tallent. Diverse in character and setting, rendered in an exhilarating, exacting prose, these stories confirm Tallent's enduring gift for capturing relationships in moments of transformation: marriages breaking apart, people haunted by memories of old love and reaching haltingly toward new futures. The result is a book that reminds us how our lives are shaped by moments of fracture and fragmentation, by expectations met and thwarted, and by our never-ending quest to be genuinely seen. Profound yet elemental, Mendocino Fire marks the welcome return of a sage and surprising voice in American fiction.

Kale. Cupcakes. Sriracha. Bacon-wrapped . . . anything. Each passing year seems to bring with it a new culinary darling, an ingredient or dish that enjoys a moment in the limelight—making its mark on restaurant menus, grocery store shelves, and, yes, in cookbooks.Quinoa is the latest heir to the food-trend throne, and with good reason: the protein-packed, gluten-free seed is a bona fide superfood. But while the nutritional attributes of quinoa are widely acknowledged, its ability to entice has, until now, been debated. Enter The Quinoa Cookbook, in which you will find more than seventy-five recipes that utilize quinoa in unexpected, creative, and delicious ways. From Nutty Quinoa Granola to Breakfast Coconut Quinoa; Roasted Peppers with Lamb-Quinoa Stuffing to Matzo Ball–Style Quinoa Soup; Charred Romaine Greek Salad with Quinoa-Crusted Feta to Quinoa, Sweet Potato, and Walnut Veggie Burgers; Quinoa, Cashew, and Orange Blossom Brittle to Quinoa PB&J Cookies; The Quinoa Cookbook will inspire you to reconsider your go-to quinoa dishes. You will also discover the tricks to cooking quinoa perfectly; learn how to make your own quinoa flour, flakes, and puffs; master the art of swapping in quinoa for other starches, like rice and pasta; and find out how to use quinoa in both savory and sweet applications, including baked goods.After all, quinoa is here to stay—so why not have some fun with it?

A gripping tale of survival and an epic love story in which a husband and wife–separated by the only battle of World War II to take place on American soil–fight to reunite in Alaska's starkly beautiful Aleutian IslandsFollowing the death of his younger brother in Europe, journalist John Easley is determined to find meaning in his loss, to document some part of the growing war that claimed his own flesh and blood. Leaving behind his beloved wife, Helen, after an argument they both regret, he heads north from Seattle to investigate the Japanese invasion of Alaska's Aleutian Islands, a story censored by the U.S. government.While John is accompanying a crew on a bombing run, his plane is shot down over the island of Attu. He survives only to find himself exposed to a harsh and unforgiving wilderness, known as "the Birthplace of Winds." There, John must battle the elements, starvation, and his own remorse while evading discovery by the Japanese.Alone in their home three thousand miles to the south, Helen struggles with the burden of her husband's disappearance. Caught in extraordinary circumstances, in this new world of the missing, she is forced to reimagine who she is–and what she is capable of doing. Somehow, she must find John and bring him home, a quest that takes her into the farthest reaches of the war, beyond the safety of everything she knows.A powerful, richly atmospheric story of life and death, commitment and sacrifice, The Wind Is Not a River illuminates the fragility of life and the fierce power of love.

A Brave Man Seven Storeys Tall?is an exuberant literary debut--a novel of real ideas and a playful examination of our in-between world, one that explores the nature of family, identity, art, and belief while also marking the introduction of an original new voice in contemporary fiction.Owen Burr is the six-foot-eight, Olympics-bound senior captain of the Stanford University water polo team. In his final collegiate match, however, he suffers a catastrophic injury that destroys his hopes and dreams, flattening his entire world into two dimensions. His identity as an athlete erased but his ambition indelible, he defies his father, a classics professor who lives in a "cave" of his own making, and moves to Berlin with naive plans to make conceptual art. Then he disappears.Without a single clue as to his son's location, Dr. Burr embarks upon a tour of public lectures from Greece to Germany to Iceland in an attempt to draw out his endangered son. Instead, he foments a violent uprising.

In this New York Times bestselling sequel to Dorothy Must Die, who is good—and who is actually WickedThe Wicked Will Rise is perfect for fans of richly reimagined fairy tales and classic tales like Marissa Meyer’s Lunar Chronicles and Gregory Maguire’s Wicked.My name is Amy Gumm—and I’m the other girl from Kansas. After a tornado swept through my trailer park, I ended up in Oz. But it wasn’t like the Oz I knew from books and movies. Dorothy had returned, but she was now a ruthless dictator. Glinda could no longer be called the Good Witch. And the Wicked Witches who were leftThey’d joined forces as the Revolutionary Order of the Wicked, and they wanted to recruit me.My missionKill Dorothy. Except my job as assassin didn’t work out as planned. Dorothy is still alive. The Order has vanished. And the home I couldn’t wait to leave behind might be in danger.Somehow, across a twisted and divided land, I have to find the Order, protect the true ruler of Oz, take Dorothy and her henchmen down—and try to figure out what I’m really doing here.

Your one-stop guide for building, configuring, maintaining, and deploying one of the world's fastest growing OSes About This Book Understand the features of CoreOS and learn to administrate and secure a CoreOS environment Develop, test, and deploy cloud services and applications more quickly and efficiently inside lightweight containers using CoreOS This is a complete tutorial on CoreOS, which is the preferred OS for cloud computing as it contains components that facilitate cloud management Who This Book Is For This book is for cloud or enterprise administrators and application developers who would like to gain knowledge about CoreOS to deploy a cloud application or micro-services on a cluster of cloud servers. It is also aimed at administrators with basic networking experience. You do not need to have any knowledge of CoreOS. What You Will Learn Understand the benefits of CoreOS as a cloud orchestration platform Learn about lightweight containers and various container frameworks such as Docker and RKT in CoreOS Manage services and containers across cluster using Fleet and systemd Set up a CoreOS environment using Vagrant Create and manage CoreOS clusters Discover the service parameters using etcd Find out about chaining services running on the cluster using Flannel / Rudder and Weave Create a virtual tenant network and service chaining using OVS In Detail CoreOS is an open source operating system developed upon the Linux kernel. The rise of CoreOS is directly related to the rise of Docker (a Linux container management system). It is a minimal operating system layer and takes a different approach to automating the deployment of containers. The major difference between CoreOS and other Linux distributions is that CoreOS was designed to deploy hundreds of servers. CoreOS immensely helps the users to create systems, which are easy to scale and manage, making life easier for all, be it developer, QA, or deployer. This book is all about setting up, deploying, and using CoreOS to manage clusters and clouds. It will help you understand what CoreOS is and its benefits as a cloud orchestration platform. First, we’ll show you how to set up a simple CoreOS instance with single node in the cluster and how to run a Docker container inside the CoreOS instance. Next, you’ll be introduced to Fleet and systemd, and will deploy and distribute Docker services across different nodes in cluster using Fleet. Later, you’ll be briefed about running services in a cluster with constraints, publishing the services already running on the cluster to new services, and making your services interact with each other. We conclude by teaching you about advanced container networking. By the end of the book, you will know the salient features of CoreOS and will be able to deploy, administrate, and secure a CoreOS environment. Style and approach This practical guide covers the basics and advanced topics related to CoreOS and lightweight containers. The topics are covered in an easy-to-follow manner with each feature explained in detail, beginning with a brief overview and followed by an explanation of its corresponding configuration files.

Don't get mad, get even! In this poignant and hilarious novel, Rachael Allen brilliantly explores the nuances of high school hierarchies, the traumas sustained on the path to finding true love, and the joy of discovering a friend where you least expect.In the small town of Ranburne, high school football rules and the players are treated like kings. How they treat the girls they go to school withThat's a completely different story. Liv, Peyton, Melanie Jane, and Ana each have their own reason for wanting to teach the team a lesson—but it's only when circumstances bring them together that they come up with the plan to steal the one thing the boys hold sacred. All they have to do is beat them at their own game.

Damaged HousesA master craftsman, Don Lark could fix everything except what mattered, his own soul. After tragedy claimed the one thing he loved, he began looking for dilapidated houses to buy, renovate, and resell at a profit--giving these empty shells the second chance at life he denied himself.Damaged SoulsThen in a quiet Southern town, Lark finds his biggest challenge: a squalid yet sturdy mansion that has suffered decades of abuse at the hands of greedy landlords and transient tenants. While two charming old neighbor ladies ply him with delicious cooking, they offer dire warnings about the house's evil past. But there is something about this building that pushes Lark on, even as its enchantments grow increasingly ominous. Will finishing the house offer Lark redemption, or unleash the darkest forces of damnation upon him?

Pretty Little Liars meets Beautiful Creatures in this steamy southern suspense novel about a group of powerful teen voodoo queens who will do anything to get what they want.Eveny Cheval has just moved back to Carrefour, Louisiana—a town she left fourteen years ago in the wake of her mother's suicide. An outsider at first, Eveny quickly finds herself embroiled in a web of intrigue, betrayal, and lies. Enter Peregrine Marceau, Chloe St. Pierre, and their group of rich, sexy friends collectively known as the Dolls. They want to bring Eveny into their circle and share their darkest truths with her.Eveny is wary of these girls, but after murder strikes and she discovers that everything she believes about herself, her family, and her life is a lie, she's forced to turn to the Dolls for answers. Something's wrong in paradise, and it's up to Eveny, Chloe, and Peregrine to save Carrefour and make it right.

Create fully-featured and highly functional iOS apps by writing tests firstAbout This BookLearn test-driven principles to help you build apps with fewer bugs and better designsBecome more efficient while working with Swift to move on to your next project faster!Learn how to incorporate all of the principles of test-driven development (TDD) in to your daily programming workflowWho This Book Is ForIf debugging iOS apps is a nerve-racking task for you and you are looking for a fix, this book is for you.What You Will LearnImplement TDD in swift application developmentGet to know the fundamentals, life cycle, and benefits of TDDExplore the tools and frameworks to effectively use TDDDevelop models and controllers driven by testsConstruct the network layer using stubsUse functional tests to ensure the app works as plannedAutomate and streamline the building, analysing, testing, and archiving of your iOS appsIn DetailTest-driven development (TDD) is a proven way to find software bugs early. Writing tests before your code improves the structure and maintainability of your app.Test-driven iOS Development with Swift will help you understand the process of TDD and how it impacts your applications written in Swift. Through practical, real-world examples, you’ll start seeing how to implement TDD in context. We will begin with an overview of your TDD workflow and then deep-dive into unit testing concepts and code cycles. We will showcase the workings of functional tests, which will help you improve the user interface. Finally, you will learn about automating deployments and continuous integration to run an environment.Style and approachThis is an easy-to-follow example-driven tutorial, packed with lots of tips and tricks that explore TDD bit-by-bit in the process of making an iOS application.

With lots of practical, handson, stepbystep examples, this book will lead you through how to extend and optimize your Symfony2 framework. If you have a good understanding of how Symfony works and are now trying to integrate complex tasks in your application, or want to better organize your application by keeping each piece of code where it belongs so it can be decoupled and easily used elsewhere, then this book is for you.