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

Chapter 11: Exploring Istio Security Features

  1. True It is the end user's responsibility to rotate certificates and keys that have been defined for the Ingress gateway in order to secure traffic from external clients and send it to the edge microservice. Note that Istio's Citadel rotates certificates for microservices.
  2. True There can only be one MeshPolicy (with name as the default) that will apply mTLS mesh-wide.
  3. True Mutual TLS can be as granular as possible from the namespace level to the service level by defining a policy.
  4. True Mutual TLS can be enabled through destination rules or by using MeshPolicy.
  5. True Istio is capable of shielding modern microservices applications from running in a zero-trust network without any changes needing to be made to the application code.
  6. True Istio makes VPNs and firewalls redundant...