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

Chapter 6. Building Custom ECS Container Instances

In earlier chapters, you learned how you use the Amazon ECS-Optimized Amazon Machine Image (AMI) to create ECS container instances and join them to an ECS cluster in a few simple steps. Although the ECS-Optimized AMI is great for getting up and running quickly, you may want to add additional features to your ECS container instances for your production environments, such as adding logging agents or including support for HTTP proxies so you can place your ECS clusters in private subnets.

In this chapter, you will learn how you can build your own custom ECS container instances, using the ECS-Optimized AMI as a base machine image and applying your own customizations using a popular open source tool called Packer. You will extend the base image to include the AWS CloudWatch logs agent, which enables centralized logging from your ECS container instances using the CloudWatch logs service, and install a useful set of CloudFormation helper scripts...