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 22: Exploring Traffic Management in Consul

  1. True Consul traffic management is done at Layer 7 of the Open System Interconnection (OSI).
  2. True The service-resolver definition that's used to declare subsets is based on filters that are used on the metadata of the services. In Kubernetes deployments, such metadata is picked up automatically by Kubernetes through its integration to Consul.
  3. True The Mesh gateway mode is akin to the Egress gateway.
  1. True If service-defaults defines a Mesh gateway mode as being local, each call is made to the Mesh gateway to determine the upstream service.
  2. True Traffic routing using a service-router can only be used for path-based routing.
  3. True Service-resolver can be used to provide a service failover from one data center to another.