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

Chapter 8: Monitoring Cloud Native Applications

There are no programs without bugs and issues, and there is no code that is perfect. Failures can occur at any time, and maintainers should be able to identify and fix them as quickly as possible. Unlike monolithic applications, monitoring cloud native applications is challenging in a number of ways. In this chapter, we will focus on building applications that can be monitored to identify possible failures and debugging the flow in the case of failure.

In this chapter, we will discuss the following topics:

  • Understanding the importance of observability and monitoring cloud applications
  • Using logs to analyze system behaviors
  • Using traces to identify the request flow over a distributed application
  • Using metrics to collect important values to monitor the system

By the end of this chapter, you should understand the importance of observing and monitoring a cloud native system. The sample tools described in this...