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

Observability

Linkerd provides out-of-the-box observability functionality through its interactive dashboard. It can instrument critical metrics such as service request volume, success rates, and network latency. In addition to these metrics, Linkerd can enable real-time data streams of network requests for all incoming and outgoing traffic for all the running services being monitored by Linkerd.

The Linkerd dashboard provides a high-level, robust view of the services being monitored in real-time. There is a term called golden metrics that can offer perspective to the overall service details, such as success rate, network requests, network latency, service dependency visualization, and view service route health checks.

This can be seen in the following screenshot:

To recap from earlier in this chapter, the dashboard can be enabled by running the linkerd dashboard command from...