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

Summary


In this chapter, you were introduced to the ECS architecture and learned about the core components that make up ECS. You learned how ECS clusters are a collection of ECS container instances, which run the Docker Engine atop EC2 autoscaling group instances. AWS provide you with a pre-built ECS-optimized AMI, making it very easy to get up and running quickly with ECS. Each ECS container instance includes an ECS agent, which runs as a system container and communicates with ECS, providing the management and control plane required to start, stop, and deploy your containers.

You next created an ECS task definition, which defines a collection of one or more container and volume definitions, including information such as container image, environment variables, and CPU/memory resource allocations. With your ECS cluster and ECS task definition in place, you were then able to create and configure an ECS service, referencing the ECS task definition to define the container configuration for the...