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 use multiple freely available tools to improve the functionalities of the Ballerina security feature. We will use the Keytool tool to work with certificates. Keytool is a certificate management tool that comes with the JDK. We also use Apache Directory Studio to build an LDAP server and manage it. All the download and installation instructions for Apache Directory Studio can be found in the Setting up Apache Directory Studio section.

For this chapter's examples, we used WSO2 Identity Server to manage users and roles and to provide different authentication and authorization methods. Download and running instructions for WSO2 Identity Server can be found in the upcoming sections. To run WSO2 Identity Server, you must have Java 11 or later installed.

The code files for this chapter can be found on GitHub at https://github.com/PacktPublishing/Cloud-Native-Applications-with-Ballerina/tree/master/Chapter07.

The Code in Action...