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

Installing Consul in a VM

First, we will download and install Consul on the VM and then install it in Kubernetes. To install Consul in a VM, follow these steps:

  1. Visit the download site for Consul: https://www.consul.io/downloads.html.
  2. To be consistent with the exercises in this book, download the v1.6.1. package for Linux AMD64:
$ wget https://releases.hashicorp.com/consul/1.6.1/consul_1.6.1_linux_amd64.zip


Note: Consul maintains its releases at https://releases.hashicorp.com/consul, where you can pick a particular version to work with. For this book, we'll be using version 1.6.1.
  1. Extract consul from the .zip archive and move it to a directory that's on PATH:
$ unzip consul_1.6.1_linux_amd64.zip
$ sudo mv consul /bin

This completes the installation.

  1. Check the version of Consul that's been installed:
$ consul version
Consul v1.6.1
Protocol 2 spoken by default...