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

Summary

In this chapter, we discussed serverless architecture and how to use the Ballerina language to implement a serverless function. Serverless functions are largely used to build a stateless application that has a shorter execution time. We discussed why and when to use serverless functions. We primarily focused on two main cloud vendors that provide FaaS solutions for cloud developers – AWS and Azure.

The Azure Cloud platform is widely used by cloud application developers to build cloud applications. We discussed the services provided by the Azure Cloud platform. Then, we discussed a simple Azure function implementation with an HTTP trigger. We also discussed a complex scenario where multiple Azure functions are connected with Azure Queue triggers and bindings.

Next, we discussed the AWS Cloud platform, which provides different types of cloud solutions for developers. AWS provides AWS Lambda as the serverless solution. In that section, we discussed how to create a...