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

Introducing the Linkerd Service Mesh

Istio is feature-rich, but it may take a while to get a good grasp of its core functionalities. Linkerd is designed to keep the service mesh simple, efficient, and easy to work with. Out-of-the-box, Linkerd works with a bare minimum configuration in comparison to Istio.

Linkerd is an open source project and is backed by a startup, Buoyant (https://buoyant.io). Buoyant was started by William Morgan and Oliver Gould, both formerly from Twitter. William Morgan, as we mentioned earlier in this book, is credited with coining the phrase service mesh. He describes it as a dedicated infrastructure layer built directly into the application for an SRE. In 2016, Linkerd 1.x was the first service mesh to be created.

It has two flavors: version 1.x and 2.x. Both are very different technologies: