Book Image

Hands-On Microservices with Kotlin

By : Juan Antonio Medina Iglesias
Book Image

Hands-On Microservices with Kotlin

By: Juan Antonio Medina Iglesias

Overview of this book

With Google's inclusion of first-class support for Kotlin in their Android ecosystem, Kotlin's future as a mainstream language is assured. Microservices help design scalable, easy-to-maintain web applications; Kotlin allows us to take advantage of modern idioms to simplify our development and create high-quality services. With 100% interoperability with the JVM, Kotlin makes working with existing Java code easier. Well-known Java systems such as Spring, Jackson, and Reactor have included Kotlin modules to exploit its language features. This book guides the reader in designing and implementing services, and producing production-ready, testable, lean code that's shorter and simpler than a traditional Java implementation. Reap the benefits of using the reactive paradigm and take advantage of non-blocking techniques to take your services to the next level in terms of industry standards. You will consume NoSQL databases reactively to allow you to create high-throughput microservices. Create cloud-native microservices that can run on a wide range of cloud providers, and monitor them. You will create Docker containers for your microservices and scale them. Finally, you will deploy your microservices in OpenShift Online.
Table of Contents (14 chapters)

Creating Dockers

Docker is the de facto standard technology for containerizing applications, and containers are one of the key technologies in cloud applications. During this chapter, we will learn what containers actually are, and why we should use them. We will learn how to install a Docker, configure it in our system, and what commands we can use to manage our containers. Then, we will take a look at pulling images from the Docker registry, and running them.

Finally, we will learn how to create Docker containers with our microservices and publish them manually, or integrate them into our Maven lifecycle.

During this chapter, you will learn about:

  • Docker containers
  • Base images
  • Dockerfiles
  • Docker command line
  • Docker-Maven-plugin