Learning Helm

Get up to speed with Helm, the preeminent package manager for the Kubernetes container orchestration system. This practical guide shows you how to efficiently create, install, and manage the applications running inside your containers. Helm maintainers Matt Butcher, Matt Farina, and Josh Dolitsky explain how this package manager fits into the Kubernetes ecosystem and provide an inside look at Helm's design and best practices. More than 70% of the organizations that work with Kubernetes use Helm today. While the Helm community provides thousands of packages, or charts, to help you get started, this book walks developers and DevOps engineers through the process of creating custom charts to package applications. If you have a working understanding of Kubernetes, you're ready to go. Explore primary features including frequently used Helm commands Learn how to build and deploy Helm charts from scratch Use Helm to manage complexity and achieve repeatable deployments Package an application and its dependencies for easy installation Manage the entire lifecycle of applications on Kubernetes Explore ways to extend Helm to add features and functionality Learn features for testing, handling dependencies, and providing security

A comprehensive introduction to automated application deployment on Kubernetes for beginners Key FeaturesEffectively manage applications deployed in Kubernetes using HelmLearn to install, upgrade, share, and manage applications deployed in KubernetesGet up and running with a package manager for KubernetesBook Description Containerization is currently known to be one of the best ways to implement DevOps. While Docker introduced containers and changed the DevOps era, Google developed an extensive container orchestration system, Kubernetes, which is now considered the frontrunner in container orchestration. With the help of this book, you’ll explore the efficiency of managing applications running on Kubernetes using Helm. Starting with a short introduction to Helm and how it can benefit the entire container environment, you’ll then delve into the architectural aspects, in addition to learning about Helm charts and its use cases. You’ll understand how to write Helm charts in order to automate application deployment on Kubernetes. Focused on providing enterprise-ready patterns relating to Helm and automation, the book covers best practices for application development, delivery, and lifecycle management with Helm. By the end of this Kubernetes book, you will have learned how to leverage Helm to develop an enterprise pattern for application delivery. What you will learnDevelop an enterprise automation strategy on Kubernetes using HelmCreate easily consumable and configurable Helm chartsUse Helm in orchestration tooling and Kubernetes operatorsExplore best practices for application delivery and life cycle managementLeverage Helm in a secure and stable manner that is fit for your enterpriseDiscover the ins and outs of automation with HelmWho this book is for This book is for Kubernetes developers or administrators who are interested in learning Helm to provide automation for application development on Kubernetes. Although no prior knowledge of Helm is required, basic knowledge of Kubernetes application development will be useful.

Completely updated, this popular guide provides teachers with a proven method for documenting (collecting, analyzing, and displaying) young children’s work. Written by teachers for teachers, it also shows principals, curriculum coordinators, and directors of early intervention programs how to develop children’s portfolios to share with parents or to use for assessment and other accountability purposes. “This lively, informative book poses a remarkable challenge to teachers—to grow themselves while growing young children. Being creatively accountable is hard work and the stories told here describe both the work, how it’s done, and its joyful rewards for teachers and children.” —Elizabeth Jones, Pacific Oaks College “This book provides a set of windows on children’s lives and how teachers can enter into those lives and enrich them through high-quality teaching. The authors have created an inspiring volume, a challenging set of ideas, and an invaluable resource for early childhood educators.” —Samuel J. Meisels, University of Michigan “[A] thoughtful, up-to-date guide to assessing and documenting children’s work. . . . The authors give clear, practical advice on how to collect, analyze, and display children’s work in meaningful ways.” —Scholastic Early Childhood Today (on first edition) “Many teachers find it frustrating to hear the rich and exciting learning experiences they provide described as ‘nothing.’ Windows on Learning skillfully addresses the challenge faced by early childhood educators wishing to share classroom experiences with parents, administrators, and peers. The authors offer a timely and fresh approach to documenting children’s learning and work.” —Childhood Education (on first edition)

This bestseller provides an introduction to the project approach with step-by-step guidance for conducting meaningful investigations. The Third Edition has been expanded to include two new chaptersHow Projects Can Connect Children with Nature and Project Investigations as STEMand to assist teachers with younger children (toddlers) and older children (2nd grade).

The Heroes in Training are entering the Underworld—if Hades can conquer his canine fears, that is. The Underworld usually isn’t really meant to be a fun place—but tell that to Hades! He loves the dark and the stinky smell of sulfur. However, there is one thing that Hades is not a fan of: dogs. And when Zeus and his fellow Olympians encounter Cerberus—a snarling, three-headed dog—Hades must conquer his fears and tame the hound so everyone can continue into the Underworld and deposit their Titan prisoner, Oceanus, back where he belongs! But with magical water that causes forgetfulness, hot beds of lava, and another epic battle with two more Titans standing in their way, will Zeus and his heroes make it out of the Underworld with everyone intact?

Telecollaboration, or online intercultural exchange, has become widely recognised as an effective way to promote the development of intercultural communicative competence and language skills. However, the study and implementation of new 2.0 environments such as wikis, Skype, virtual worlds and gaming for telecollaboration is still in its infancy. How can these multilingual, multimodal, collaborative environments be used to promote language and intercultural learning? What are the implications for teachers and learners and what new literacies are required? Do they offer an added-value? This book seeks to answer these questions and many more by bringing together the experience and expertise of researchers and practitioners alike. The authors offer critical stances, new frameworks and practical case studies to help the reader 'navigate' the world of Telecollaboration 2.0.

Renewable energy and sustainable development have become more prominent in the world, providing capitalistic opportunities for shrewd businessmen and corporate wars. When an opportunity to provide a renewable electricity source for a new city in Saudi Arabia is released for tender, billionaire entrepreneur and investment savant, Jim Dunsmuir, begins building a revolutionary idea he believes will change the face of the world’s power and travel systems. His competition is ex-oil magnate, George Anderson, the founder of one of the largest solar companies in the world. Now he is out to win the contract for his solar power company at all costs, even if it means pushing the boundaries of the law. Stuck in the middle of his dark mission is former NYPD detective Richard Emerson and his team at Trade Link Security. George has a way of making Richard feel like their periodic forays into the grey area of the law are inevitable and acceptable, despite Richard’s misgivings. As a high stakes battle begins, now only time will tell which entrepreneur will land the contract and which one will be sent down a path he never expected. In this thrilling tale, two successful entrepreneurs embark on separate journeys to make their mark in the ever-changing world of sustainable development and renewable energy.

Master the art of container management utilizing the power of Kubernetes. About This Book This practical guide demystifies Kubernetes and ensures that your clusters are always available, scalable, and up to date Discover new features such as autoscaling, rolling updates, resource quotas, and cluster size Master the skills of designing and deploying large clusters on various cloud platforms Who This Book Is For The book is for system administrators and developers who have intermediate level of knowledge with Kubernetes and are now waiting to master its advanced features. You should also have basic networking knowledge. This advanced-level book provides a pathway to master Kubernetes. What You Will Learn Architect a robust Kubernetes cluster for long-time operation Discover the advantages of running Kubernetes on GCE, AWS, Azure, and bare metal See the identity model of Kubernetes and options for cluster federation Monitor and troubleshoot Kubernetes clusters and run a highly available Kubernetes Create and configure custom Kubernetes resources and use third-party resources in your automation workflows Discover the art of running complex stateful applications in your container environment Deliver applications as standard packages In Detail Kubernetes is an open source system to automate the deployment, scaling, and management of containerized applications. If you are running more than just a few containers or want automated management of your containers, you need Kubernetes. This book mainly focuses on the advanced management of Kubernetes clusters. It covers problems that arise when you start using container orchestration in production. We start by giving you an overview of the guiding principles in Kubernetes design and show you the best practises in the fields of security, high availability, and cluster federation. You will discover how to run complex stateful microservices on Kubernetes including advanced features as horizontal pod autoscaling, rolling updates, resource quotas, and persistent storage back ends. Using real-world use cases, we explain the options for network configuration and provides guidelines on how to set up, operate, and troubleshoot various Kubernetes networking plugins. Finally, we cover custom resource development and utilization in automation and maintenance workflows. By the end of this book, you'll know everything you need to know to go from intermediate to advanced level. Style and approach Delving into the design of the Kubernetes platform, the reader will be exposed to the advanced features and best practices of Kubernetes. This book will be an advanced level book which will provide a pathway to master Kubernetes