Book Image

AWS Certified Developer - Associate Guide - Second Edition

By : Vipul Tankariya, Bhavin Parmar
5 (2)
Book Image

AWS Certified Developer - Associate Guide - Second Edition

5 (2)
By: Vipul Tankariya, Bhavin Parmar

Overview of this book

This book will focus on the revised version of AWS Certified Developer Associate exam. The 2019 version of this exam guide includes all the recent services and offerings from Amazon that benefits developers. AWS Certified Developer - Associate Guide starts with a quick introduction to AWS and the prerequisites to get you started. Then, this book will describe about getting familiar with Identity and Access Management (IAM) along with Virtual private cloud (VPC). Next, this book will teach you about microservices, serverless architecture, security best practices, advanced deployment methods and more. Going ahead we will take you through AWS DynamoDB A NoSQL Database Service, Amazon Simple Queue Service (SQS) and CloudFormation Overview. Lastly, this book will help understand Elastic Beanstalk and will also walk you through AWS lambda. At the end of this book, we will cover enough topics, tips and tricks along with mock tests for you to be able to pass the AWS Certified Developer - Associate exam and develop as well as manage your applications on the AWS platform.
Table of Contents (30 chapters)
Free Chapter
1
Overview of AWS Certified Developer - Associate Certification

Rolling updates for auto scaling groups

AWS CloudFormation provides you with a mechanism to control how an auto scaling group updates your resources using the UpdatePolicy attribute. If you do not configure your settings correctly, a rolling update on an auto scaling group may be performed unexpectedly. You can address this scenario by using the AutoScalingRollingUpdate policy, which supports a number of options to configure your template.

Here is an example of the updated policy for rolling updates, which can be found in official AWS documentation at https://aws.amazon.com/premiumsupport/ knowledge-center/auto-scaling-group-rolling-updates/. You can also refer to a very good article on rolling updates with CloudFormation at https://cloudonaut.io/ rolling-update-with-aws-cloudformation/.