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
Packt Upsell

Deploying applications to Docker Swarm

Now that you have installed Docker Swarm using Docker for AWS and established management connectivity to the Swarm cluster, we are ready to start deploying applications. Deploying applications to Docker Swarm requires use of the docker service and docker stack commands, which we have not covered to date in this book, so we will get acquainted with these commands by deploying a few example applications before tackling the deployment of our todobackend application.

Docker services

Although you can technically deploy a single container to a Swarm cluster, you should avoid doing this and always work with Docker services as the standard unit of deployment to your Swarm clusters. We have actually worked with Docker services already using Docker Compose, however when used in conjunction with Docker Swarm, they are elevated to a new level.

To create a Docker service, you can use the docker service create command, and the following example demonstrates standing...