Book Image

Docker on Amazon Web Services

By : Justin Menga
Book Image

Docker on Amazon Web Services

By: Justin Menga

Overview of this book

Over the last few years, Docker has been the gold standard for building and distributing container applications. Amazon Web Services (AWS) is a leader in public cloud computing, and was the first to offer a managed container platform in the form of the Elastic Container Service (ECS). Docker on Amazon Web Services starts with the basics of containers, Docker, and AWS, before teaching you how to install Docker on your local machine and establish access to your AWS account. You'll then dig deeper into the ECS, a native container management platform provided by AWS that simplifies management and operation of your Docker clusters and applications for no additional cost. Once you have got to grips with the basics, you'll solve key operational challenges, including secrets management and auto-scaling your infrastructure and applications. You'll explore alternative strategies for deploying and running your Docker applications on AWS, including Fargate and ECS Service Discovery, Elastic Beanstalk, Docker Swarm and Elastic Kubernetes Service (EKS). In addition to this, there will be a strong focus on adopting an Infrastructure as Code (IaC) approach using AWS CloudFormation. By the end of this book, you'll not only understand how to run Docker on AWS, but also be able to build real-world, secure, and scalable container platforms in the cloud.
Table of Contents (26 chapters)
Title Page
Copyright and Credits
Dedication
Packt Upsell
Contributors
Preface
Index

Configuring EC2 Auto Scaling rolling updates


When you use CloudFormation to create and manage your EC2 Auto Scaling groups, a useful capability is the ability to manage rolling updates. Rolling updates refers to the ability to roll in new EC2 instances into your Auto Scaling group, in a controlled manner that ensures your update process can be completed without causing disruption. In Chapter 8, when you created an EC2 Auto Scaling group via CloudFormation, you learned how CloudFormation supports creation policies, that can help you ensure all instances in your EC2 Auto Scaling have initialized successfully. CloudFormation also supports update policies, which as you saw earlier in the previous diagram, help you manage and control how updates to your EC2 Auto Scaling group are managed.

 

 

If you open the todobackend-aws repository and browse to the CloudFormation template located in the stack.yml file, you can add an update policy to the ApplicationAutoscaling resource, as demonstrated in the...