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

Publishing Docker images to ECR


In earlier chapters, you learned how to build and tag Docker images locally, using the todobackend sample application as an example.

You can now extend this workflow to publish Docker images to ECR, which requires you to perform the following tasks:

  • Ensure you are logged into ECR
  • Build and tag your Docker image with the URI of your ECR repository
  • Push your Docker image to ECR

Publishing Docker images using the Docker CLI

You've already seen how to log into ECR, and building and tagging your Docker image is much the same as the local use case, except you need to specify the URI of your ECR repository when tagging the image.

The following example demonstrates building the todobackend image, tagging the image with the URI of your new ECR repository (for the actual URI of your repository), and verifying the image name using the docker images command:

> cd ../todobackend
> docker build -t 385605022855.dkr.ecr.us-east-1.amazonaws.com/docker-in-aws/todobackend .
Sending...