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)
1
Part 1: The Fundamentals
5
Part 2: Istio in Practice
10
Part 3: Scaling, Extending,and Optimizing

Managing Application Resiliency

Application resiliency is the ability of software applications to withstand faults and failures without any noticeable degradation of quality and level of service for its consumer. The move from monoliths to microservices has exacerbated the need for application resiliency in software design and architecture. In monolith applications, there is a single code base and single deployment whereas, in microservice-based architecture, there are many independent code bases each with its own deployment. When leveraging Kubernetes and other similar platforms, you also need to cater to deployment flexibility and the fact that multiple application instances are being deployed and scaled elastically; these dynamic instances need to not only coordinate with each other but also coordinate with all other microservices.

In this chapter, we will read about how to make use of Istio to increase the application resiliency of microservices. As we go through each section...