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

Why extensibility

As with any good architecture, extensibility is very important because there is no one size fits all approach to technology that can adapt to every application. Extensibility is important in Istio as it provides options to users to build corner cases and extend Istio as per their individual needs. In the early days of Istio and Envoy, the projects took different approaches to build extensibility. Istio took the approach of building a generic out-of-process extension model called Mixer (https://istio.io/v1.6/docs/reference/config/policy-and-telemetry/mixer-overview/), whereas Envoy focused on in-proxy extensions (https://www.envoyproxy.io/docs/envoy/latest/extending/extending). Mixer is now deprecated; it was a plugin-based implementation used for building extensions (also called adaptors) for various infrastructure backends. Some examples of adapters are Bluemix, AWS, Prometheus, Datadog, and SolarWinds. These adapters allowed Istio to interface with various kinds...