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

Setting up a Ballerina environment

Setting up Ballerina is as easy as installing and running the Ballerina installer, which can be downloaded from the Ballerina website. In this section, we will discuss how to install the Ballerina development environment and setting up VS Code as the code editor.

Downloading and installing Ballerina

Ballerina is supported by the Windows, Linux, and macOS operating systems. You can download the installer from the official Ballerina download page (ballerina.io):

Figure 2.4 – Ballerina download page

Installation from the installer is as easy as double-clicking on the installer and following the instructions. If you install Ballerina using the installer, there are no pre-requisites to install the Ballerina compiler on your computer.

If you are installing Ballerina from the source code, you must first install the Java Development Kit (JDK) on your computer. You can download OpenJDK 11 from the download page at https...