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

Container orchestration with Kubernetes

Containers provide a lightweight solution to deploy applications that bundle all their required resources on them. There can be hundreds of containers that are running on a system. Now, we have a set of problems that we need to resolve, such as maintaining the number of containers running for each service, building connections between different containers, and maintaining security. This is where the container orchestration platforms come in.

Container orchestration platforms are capable of handling and maintaining containers according to the rules and policies specified by the system engineers. There are various tools available for container orchestration. Kubernetes is the most popular container orchestration platform provided by Google to build cloud native applications. In this section, we will learn how Kubernetes works by generating Kubernetes artifacts from the Ballerina compiler, perform a health check on the Kubernetes cluster, and...