Book Image

Bootstrapping Service Mesh Implementations with Istio

By : Anand Rai
4 (1)
Book Image

Bootstrapping Service Mesh Implementations with Istio

4 (1)
By: Anand Rai

Overview of this book

Istio is a game-changer in managing connectivity and operational efficiency of microservices, but implementing and using it in applications can be challenging. This book will help you overcome these challenges and gain insights into Istio's features and functionality layer by layer with the help of easy-to-follow examples. It will let you focus on implementing and deploying Istio on the cloud and in production environments instead of dealing with the complexity of demo apps.  You'll learn the installation, architecture, and components of Istio Service Mesh, perform multi-cluster installation, and integrate legacy workloads deployed on virtual machines. As you advance, you'll understand how to secure microservices from threats, perform multi-cluster deployments on Kubernetes, use load balancing, monitor application traffic, implement service discovery and management, and much more. You’ll also explore other Service Mesh technologies such as Linkerd, Consul, Kuma, and Gloo Mesh. In addition to observing and operating Istio using Kiali, Prometheus, Grafana and Jaeger, you'll perform zero-trust security and reliable communication between distributed applications. After reading this book, you'll be equipped with the practical knowledge and skills needed to use and operate Istio effectively.
Table of Contents (19 chapters)
Part 1: The Fundamentals
Part 2: Istio in Practice
Part 3: Scaling, Extending,and Optimizing

Getting Started with Istio

In the previous chapter, we discussed monolithic architecture and its drawbacks. We discussed microservice architecture and how it provides modularity to large complex applications. Microservice architectures are scalable, easier to deploy, resilient, and fault-tolerant via isolation and modularization, leveraging cloud containers and Kubernetes. Containers are the default packaging format for cloud-native applications, and Kubernetes is the de facto platform for container life cycle management and deployment orchestration. The ability of microservices to be distributed, highly scalable, and work in parallel with other microservices amplifies the communication challenges between microservices, and also operational challenges such as visibility in the communication and execution of microservices.

Microservices need to have secure communication with each other to avoid exploitation and attacks such as man-in-the-middle attacks. To solve such challenges in...