Book Image

Cloud Native Applications with Ballerina

By : Dhanushka Madushan
Book Image

Cloud Native Applications with Ballerina

By: Dhanushka Madushan

Overview of this book

The Ballerina programming language was created by WSO2 for the modern needs of developers where cloud native development techniques have become ubiquitous. Ballerina simplifies how programmers develop and deploy cloud native distributed apps and microservices. Cloud Native Applications with Ballerina will guide you through Ballerina essentials, including variables, types, functions, flow control, security, and more. You'll explore networking as an in-built feature in Ballerina, which makes it a first-class language for distributed computing. With this app development book, you'll learn about different networking protocols as well as different architectural patterns that you can use to implement services on the cloud. As you advance, you'll explore multiple design patterns used in microservice architecture and use serverless in Amazon Web Services (AWS) and Microsoft Azure platforms. You will also get to grips with Docker, Kubernetes, and serverless platforms to simplify maintenance and the deployment process. Later, you'll focus on the Ballerina testing framework along with deployment tools and monitoring tools to build fully automated observable cloud applications. By the end of this book, you will have learned how to apply the Ballerina language for building scalable, resilient, secured, and easy-to-maintain cloud native Ballerina projects and applications.
Table of Contents (15 chapters)
1
Section 1: The Basics
4
Section 2: Building Microservices with Ballerina
8
Section 3: Moving on with Cloud Native

Technical requirements

In this chapter, we will explain how to install Ballerina using the Ballerina installer, which is the easiest way to install Ballerina. If you install Ballerina from a ZIP file, you need to install the Java Runtime Environment (JRE) on your machine. On the other hand, you can install Ballerina by building the source code. For that, you will need to install JDK11 on your computer.

The command-line arguments given in this book are a reference to Unix architecture. Here we have used the Ballerina CLI tool to maintain the Ballerina projects. For any operating system, Ballerina CLI commands are common. If you are executing any other commands that are specific to an operating system, make sure to use the appropriate commands for each operating system.

The code files for this chapter can be found on GitHub at https://github.com/PacktPublishing/Cloud-Native-Applications-with-Ballerina/tree/master/Chapter02

The Code in Action video for the chapter can be found...