Troubleshooting Nginx Ingress Controller
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Edge Computing Systems with Kubernetes
Author: Sergio Méndez
language: en
Publisher: Packt Publishing Ltd
Release Date: 2022-10-14
Understand how to use K3s and k3OS for different use cases and discover best practices for building an edge computing system Key FeaturesA guide to implementing an edge computing environmentReduce latency and costs for real-time applications running at the edgeFind stable and relevant cloud native open source software to complement your edge environmentsBook Description Edge computing is a way of processing information near the source of data instead of processing it on data centers in the cloud. In this way, edge computing can reduce latency when data is processed, improving the user experience on real-time data visualization for your applications. Using K3s, a light-weight Kubernetes and k3OS, a K3s-based Linux distribution along with other open source cloud native technologies, you can build reliable edge computing systems without spending a lot of money. In this book, you will learn how to design edge computing systems with containers and edge devices using sensors, GPS modules, WiFi, LoRa communication and so on. You will also get to grips with different use cases and examples covered in this book, how to solve common use cases for edge computing such as updating your applications using GitOps, reading data from sensors and storing it on SQL and NoSQL databases. Later chapters will show you how to connect hardware to your edge clusters, predict using machine learning, and analyze images with computer vision. All the examples and use cases in this book are designed to run on devices using 64-bit ARM processors, using Raspberry Pi devices as an example. By the end of this book, you will be able to use the content of these chapters as small pieces to create your own edge computing system. What you will learnConfigure k3OS and K3s for development and production scenariosPackage applications into K3s for shipped-node scenariosDeploy in occasionally connected scenarios, from one node to one million nodesManage GitOps for applications across different locationsUse open source cloud native software to complement your edge computing systemsImplement observability event-driven and serverless edge applicationsCollect and process data from sensors at the edge and visualize it into the cloudWho this book is for This book is for engineers (developers and/or operators) seeking to bring the cloud native benefits of GitOps and Kubernetes to the edge. Anyone with basic knowledge of Linux and containers looking to learn Kubernetes using examples applied to edge computing and hardware systems will benefit from this book.
NGINX Cookbook
Author: Derek DeJonghe
language: en
Publisher: "O'Reilly Media, Inc."
Release Date: 2024-01-29
NGINX is one of the most widely used web servers available today, in part because of itscapabilities as a load balancer and reverse proxy server for HTTP and other network protocols. This revised cookbook provides easy-to-follow examples of real-world problems in application delivery. Practical recipes help you set up and use either the open source or commercial offering to solve problems in various use cases. For professionals who understand modern web architectures, such as n-tier or microservice designs and common web protocols such as TCP and HTTP, these recipes provide proven solutions for security and software load balancing and for monitoring and maintaining NGINX's application delivery platform. You'll also explore advanced features of both NGINX and NGINX Plus, the free and licensed versions of this server. You'll find recipes for: High-performance load balancing with HTTP, TCP, and UDP Securing access through encrypted traffic, secure links, HTTP authentication subrequests, and more Deploying NGINX to Google, AWS, and Azure cloud Setting up and configuring NGINX Controller Installing and configuring the NGINX App Protect module Enabling WAF through Controller ADC NGINX Instance Manager, Service Mesh, and the njs module
Certified Kubernetes Administrator Study Companion
The Kubernetes landscape is constantly evolving, making it crucial to stay updated on the latest best practices and technologies. Using a structured approach and practical applications, this comprehensive study companion is designed to help individuals prepare for the Certified Kubernetes Administrator (CKA) exam. You’ll start by reviewing a range of essential topics that serve as prerequisites for certification, such as what Kubernetes is, its architecture, and key components like the Control Plane, ApiServer, and ETCD. The book then addresses workloads and scheduling, providing insights into pods, deployments, and various resource management techniques. Additionally, you’ll explore storage management in Kubernetes, detailing persistent volumes, access modes, and storage classes. Networking topics, including pod connectivity, CoreDNS, and network policies are covered as well. Throughout the book, troubleshooting techniques are emphasized, focusing on monitoring cluster components and application performance. Most importantly, the book offers guidance on exam preparation, including patterns, prerequisites, and last-minute tips, along with sample questions to aid your study process. Whether you're new to Kubernetes or actively studying for the CKA certification, this book will serve as your essential resource. What You Will Learn Kubernetes fundamentals, including architecture, components, and installation. In-depth knowledge on workloads and scheduling, covering pods, deployments, and services. Essential insights into storage management, networking, and cluster architecture. Troubleshooting techniques for monitoring and resolving issues in Kubernetes environments. Exam preparation tips, including sample questions and strategies for success. Who This Book Is For College students, recent graduates, IT professionals in the Cloud/DevOps domain, individuals transitioning into Cloud/DevOps roles, Kubernetes administrators, and DevOps engineers.