Book Image

Hands-On Serverless Applications with Kotlin

By : Hardik Trivedi, Ameya Kulkarni
Book Image

Hands-On Serverless Applications with Kotlin

By: Hardik Trivedi, Ameya Kulkarni

Overview of this book

Serverless is a cloud computing execution model where the cloud provider dynamically manages the allocation and provisioning of servers. Many companies now use serverless architectures to cut costs and improve scalability. Thanks to its concise and expressive syntax and a smooth learning curve, Kotlin is a great fit for developing serverless applications. With this book, you’ll be able to put your knowledge to work by implementing serverless technology in your applications and become productive in no time. Complete with detailed explanation of essential concepts and examples, this book will help you understand the serverless architecture fundamentals and how to design serverless architectures for your applications. You’ll also explore how AWS Lambda functions work. The book will guide you in designing, building, securing, and deploying your application to production, along with implementing non-functional requirements such as auditing and logging. Furthermore, you’ll discover how to scale up and orchestrate serverless applications using an open source framework and handle distributed serverless systems in production. By the end of the book, you’ll be able to build scalable and cost-efficient Kotlin applications with a serverless framework.
Table of Contents (11 chapters)
3
Designing a Kotlin Serverless Application

Caveats while scaling Serverless applications

There are a few things that need to be kept in mind when dealing with scaling Serverless applications. In this section, let's have a brief glance at some of them.

Lambda execution life cycle

In order to understand the challenges and subsequently the workaround to scale lambda functions, we need to understand how a lambda function gets executed.

As discussed in Chapter 2, AWS Serverless Offerings, an invocation of the lambda function takes place in a sandbox on an Amazon Linux AMI machine. The details on how and where this sandbox is provisioned and configured is left to Amazon's discretion. The sandbox provisioning for lambda involves the following steps:

  1. Provisioning...