Book Image

Implementing AWS: Design, Build, and Manage your Infrastructure

By : Yohan Wadia, Rowan Udell, Lucas Chan, Udita Gupta
Book Image

Implementing AWS: Design, Build, and Manage your Infrastructure

By: Yohan Wadia, Rowan Udell, Lucas Chan, Udita Gupta

Overview of this book

With this Learning Path, you’ll explore techniques to easily manage applications on the AWS cloud. You’ll begin with an introduction to serverless computing, its advantages, and the fundamentals of AWS. The following chapters will guide you on how to manage multiple accounts by setting up consolidated billing, enhancing your application delivery skills, with the latest AWS services such as CodeCommit, CodeDeploy, and CodePipeline to provide continuous delivery and deployment, while also securing and monitoring your environment's workflow. It’ll also add to your understanding of the services AWS Lambda provides to developers. To refine your skills further, it demonstrates how to design, write, test, monitor, and troubleshoot Lambda functions. By the end of this Learning Path, you’ll be able to create a highly secure, fault-tolerant, and scalable environment for your applications. This Learning Path includes content from the following Packt products: • AWS Administration: The Definitive Guide, Second Edition by Yohan Wadia • AWS Administration Cookbook by Rowan Udell, Lucas Chan • Mastering AWS Lambda by Yohan Wadia, Udita Gupta
Table of Contents (29 chapters)
Title Page
Copyright and Credits
About Packt
Contributors
Preface
Index

Exploring Lambda and event mapping


We have already seen and learned a bit about how Lambda uses a notion called event mapping to map a particular AWS service to a corresponding Lambda function. In this section, we will be diving a bit further into event mapping with the help of some interesting real world use cases that most of you would find useful in your own AWS environments.

Mapping Lambda with S3

You can easily write and invoke Lambda functions for processing objects stored in an S3 bucket. The functions can be triggered using a set of notification configurations which trigger a corresponding Lambda function into action. The following is a list of few such notification configurations that can be used for triggering functions on S3 buckets:

  • When an object is created in a bucket using either put, post, copy or a completemultipartupload operation
  • When an object is deleted from a bucket using the delete operation
  • When a bucket set with ReducedRedundancy storage option loses an object

How does...