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

Exploring Envoy, the Istio data plane

Envoy is the key component of the Istio data plane. To understand the Istio data plane, it is important to understand and know about Envoy.

Envoy is an open source project and CNCF graduate. You can find more details about Envoy as a CNCF project at https://www.cncf.io/projects/Envoy/. In this section, we will learn about Envoy and why it was selected as the service proxy for the Istio data plane.

What is Envoy?

Envoy is a lightweight, highly performant Layer 7 and Layer 4 proxy with an easy-to-use configuration system, making it highly configurable and suitable for serving as a standalone edge-proxy in the API gateway architecture pattern, as well as running as a sidecar in the Service Mesh architecture pattern. In both architecture patterns, Envoy runs in its own single process alongside the applications/services, which makes it easier to upgrade and manage and also allows Envoy to be deployed and upgraded transparently across the entire...