Book Image

Mastering Service Mesh

By : Anjali Khatri, Vikram Khatri
Book Image

Mastering Service Mesh

By: Anjali Khatri, Vikram Khatri

Overview of this book

Although microservices-based applications support DevOps and continuous delivery, they can also add to the complexity of testing and observability. The implementation of a service mesh architecture, however, allows you to secure, manage, and scale your microservices more efficiently. With the help of practical examples, this book demonstrates how to install, configure, and deploy an efficient service mesh for microservices in a Kubernetes environment. You'll get started with a hands-on introduction to the concepts of cloud-native application management and service mesh architecture, before learning how to build your own Kubernetes environment. While exploring later chapters, you'll get to grips with the three major service mesh providers: Istio, Linkerd, and Consul. You'll be able to identify their specific functionalities, from traffic management, security, and certificate authority through to sidecar injections and observability. By the end of this book, you will have developed the skills you need to effectively manage modern microservices-based applications.
Table of Contents (31 chapters)
1
Section 1: Cloud-Native Application Management
4
Section 2: Architecture
8
Section 3: Building a Kubernetes Environment
10
Section 4: Learning about Istio through Examples
18
Section 5: Learning about Linkerd through Examples
24
Section 6: Learning about Consul through Examples

Overview of the reliability of Linkerd

Reliability is a critical quality of any enterprise application. It is even more significant if the application is deployed in an ever-changing environment that meets business requirements through software innovation. Ibryam defines this concept as follows:

  • Fragile: The system is unable to survive under stress.
  • Robust: The system withstands stress to an extent, and then it breaks.
  • Resilient: The system adapts to stress and failures before it reaches the breaking point.
  • Anti-fragile: It feeds on stress and change and so it's much harder to create.

This is better understood with the help of the following diagram:

In parallel to reliability, a service mesh provides a resilient system through continuous improvement from sidecar proxies.

The use of specialized libraries such as Twitter's Finagle and Netflix's Hystrix help...