Book Image

Microservices Deployment Cookbook

By : Vikram Murugesan
Book Image

Microservices Deployment Cookbook

By: Vikram Murugesan

Overview of this book

This book will help any team or organization understand, deploy, and manage microservices at scale. It is driven by a sample application, helping you gradually build a complete microservice-based ecosystem. Rather than just focusing on writing a microservice, this book addresses various other microservice-related solutions: deployments, clustering, load balancing, logging, streaming, and monitoring. The initial chapters offer insights into how web and enterprise apps can be migrated to scalable microservices. Moving on, you’ll see how to Dockerize your application so that it is ready to be shipped and deployed. We will look at how to deploy microservices on Mesos and Marathon and will also deploy microservices on Kubernetes. Next, you will implement service discovery and load balancing for your microservices. We’ll also show you how to build asynchronous streaming systems using Kafka Streams and Apache Spark. Finally, we wind up by aggregating your logs in Kafka, creating your own metrics, and monitoring the metrics for the microservice.
Table of Contents (15 chapters)
Microservices Deployment Cookbook
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

Creating custom metrics using Dropwizard


So far in this chapter, we've learned how to use the Spring Boot Actuator metrics. But what if your application is not Spring Boot and you still want to create metrics of your own? That is what this recipe will help you with. Not every microservice needs to be Spring Boot based. There are some microservices that could be written with other microservice frameworks. In those cases, if you would like to create your own metrics, you could use Dropwizard's Codahale library. Codahale is one of the most popular metrics libraries available for Java-based applications. In fact, Spring Boot internally uses Codahale to create some of its metrics. In this recipe, we will be using the Codahale library to create a metric for the geolocation application.

Getting ready

If you are wondering what the association between Dropwizard and Codahale is, the answer is that Codahale falls under the Dropwizard umbrella. Dropwizard is an ecosystem of libraries that can be used...