▶Book Description
Kubernetes is among the most popular open-source platforms for automating the deployment, scaling, and operations of application containers across clusters of hosts, providing a container-centric infrastructure.
Hands-On Microservices with Kubernetes starts by providing you with in-depth insights into the synergy between Kubernetes and microservices. You will learn how to use Delinkcious, which will serve as a live lab throughout the book to help you understand microservices and Kubernetes concepts in the context of a real-world application. Next, you will get up to speed with setting up a CI/CD pipeline and configuring microservices using Kubernetes ConfigMaps. As you cover later chapters, you will gain hands-on experience in securing microservices, and implementing REST, gRPC APIs, and a Delinkcious data store. In addition to this, you'll explore the Nuclio project, run a serverless task on Kubernetes, and manage and implement data-intensive tests. Toward the concluding chapters, you'll deploy microservices on Kubernetes and learn to maintain a well-monitored system. Finally, you'll discover the importance of service meshes and how to incorporate Istio into the Delinkcious cluster.
By the end of this book, you'll have gained the skills you need to implement microservices on Kubernetes with the help of effective tools and best practices.
▶What You Will Learn
- Understand the synergy between Kubernetes and microservices
- Create a complete CI/CD pipeline for your microservices on Kubernetes
- Develop microservices on Kubernetes with the Go kit framework using best practices
- Manage and monitor your system using Kubernetes and open-source tools
- Expose your services through REST and gRPC APIs
- Implement and deploy serverless functions as a service
- Externalize authentication, authorization and traffic shaping using a service mesh
- Run a Kubernetes cluster in the cloud on Google Kubernetes Engine
▶Key Features
- Learn to design a scalable architecture by building continuous integration (CI) pipelines with Kubernetes
- Get an in-depth understanding of role-based access control (RBAC), continuous deployment (CD), and observability
- Monitor a Kubernetes cluster with Prometheus and Grafana
▶Who This Book Is For
This book is for developers, DevOps engineers, or anyone who wants to develop large-scale microservice-based systems on top of Kubernetes. If you are looking to use Kubernetes on live production projects or want to migrate existing systems to a modern containerized microservices system, then this book is for you. Coding skills, together with some knowledge of Docker, Kubernetes, and cloud concepts will be useful.
▶What this book covers
- Chapter 1, Introduction to Kubernetes for Developers, introduces you to Kubernetes. You will receive a whirlwind tour of Kubernetes and get an idea of how well it aligns with microservices.
- Chapter 2, Getting Started with Microservices, discusses various aspects, patterns, and approaches to common problems in microservice-based systems and how they compare to other common architectures, such as monoliths and large services.
- Chapter 3, Delinkcious – the Sample Application, explores why we should choose Go as the programming language of Delinkcious; then we will look at Go kit.
- Chapter 4, Setting Up the CI/CD Pipeline, teaches you about the problem the CI/CD pipeline solves, covers the different options for CI/CD pipelines for Kubernetes, and finally looks at building a CI/CD pipeline for Delinkcious.
- Chapter 5, Configuring Microservices with Kubernetes, moves you into the practical and realworld area of microservices configuration. Also, we will discuss Kubernetes-specific options and, in particular, ConfigMaps.
- Chapter 6, Securing Microservices on Kubernetes, examines how to secure your microservices on Kubernetes in depth. We will also discuss the pillars that act as the foundation of microservice security on Kubernetes.
- Chapter 7, Talking to the World – APIs and Load Balancers, sees us open Delinkcious to the world and let users interact with it from outside the cluster. Also, we will add a gRPCbased news service that users can hit up to get news about other users they follow. Finally, we will add a message queue that lets services communicate in a loosely coupled manner.
- Chapter 8, Working with Stateful Services, delves into the Kubernetes storage model. We will also extend the Delinkcious news service to store its data in Redis, instead of in memory.
- Chapter 9, Running Serverless Tasks on Kubernetes, dives into one of the hottest trends in cloud-native systems: serverless computing (also known as Function as a Service, or FaaS). Also, we'll cover other ways to do serverless computing in Kubernetes.
- Chapter 10, Testing Microservices, covers the topic of testing and its various flavors: unit testing, integration testing, and all kinds of end-to-end testing. We also delve into how Delinkcious tests are structured.
- Chapter 11, Deploying Microservices, deals with two related, yet separate, themes: production deployments and development deployments.
- Chapter 12, Monitoring, Logging, and Metrics, focuses on the operational side of running a large-scale distributed system on Kubernetes, as well as on how to design the system and what to take into account to ensure a top-notch operational posture.
- Chapter 13, Service Mesh – Working with Istio, reviews the hot topic of service meshes and, in particular, Istio. This is exciting because service meshes are a real game changer.
- Chapter 14, The Future of Microservices and Kubernetes, covers the topics of Kubernetes and microservices, and will help us learn how to decide when it's the right time to adopt and invest in newer technologies.
