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

Understanding ECR


Before we get started creating and configuring ECR repositories, it is important to provide a brief introduction to the core concepts of ECR.

ECR is a fully-managed private Docker registry provided by AWS and offers tight integration with ECS and other AWS services. ECR consists of a number of components, as shown in the following diagram:

 

 

 

 

 

ECR architecture

The core components of ECR include:

  • Repositories: A repository stores all versions of images for a given Docker image. Each repository is configured with a name and URI, which is unique to your AWS account and region.
  • Permissions: Each repository includes permissions that allow you to grant access for various ECR operations, such as pushing or pulling Docker images.
  • Lifecycle policy: Each repository can be configured with an optional lifecycle policy, which can be used to clean up orphaned Docker images that have been superseded by newer versions, or remove older Docker images that you may no longer use.
  • Authentication...