Book Image

A Developer's Essential Guide to Docker Compose

By : Emmanouil Gkatziouras
Book Image

A Developer's Essential Guide to Docker Compose

By: Emmanouil Gkatziouras

Overview of this book

Software development is becoming increasingly complex due to the various software components used. Applications need to be packaged with software components to facilitate their operations, making it complicated to run them. With Docker Compose, a single command can set up your application and the needed dependencies. This book starts with an overview of Docker Compose and its usage and then shows how to create an application. You will also get to grips with the fundamentals of Docker volumes and network, along with Compose commands, their purpose, and use cases. Next, you will set up databases for daily usage using Compose and, leveraging Docker networking, you will establish communication between microservices. You will also run entire stacks locally on Compose, simulate production environments, and enhance CI/CD jobs using Docker Compose. Later chapters will show you how to benefit from Docker Compose for production deployments, provision infrastructure on public clouds such as AWS and Azure, and wrap up with Compose deployments on said infrastructure. By the end of this book, you will have learned how to effectively utilize Docker Compose for day-to-day development.
Table of Contents (19 chapters)
1
Part 1: Docker Compose 101
6
Part 2: Daily Development with Docker Compose
12
Part 3: Deployment with Docker Compose

Summary

In this chapter, we managed to deploy our Compose application to an AWS environment. We created a container registry on AWS and pushed the Docker images to the registry. We then deployed our application to ECS and a new set of infrastructure was provisioned for our application. Then we created a private network and an ECS cluster. Our Compose application has the security benefits of a private network and our infrastructure is reusable for other Compose applications. This was achieved by adapting our Compose file and specifying the infrastructure to be used. We moved on to more advanced deployment concepts, such as autoscaling and storing secrets. By adapting the Compose application, we took advantage of ECS’ autoscaling capabilities and the rolling update functionality, and we shared our secrets among multiple applications.

In the next chapter, we shall deploy our Compose application to another popular cloud provider, Microsoft Azure.