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 were introduced to Docker Compose and some of its most notable features. We installed Compose on different operating systems and identified the differences between installations. Then, we identified the different Compose versions, Docker-Compose V1 and Docker Compose V2, along with the version to be used throughout this book. By checking on the Compose source code, we went a step further regarding how Compose works and interacts with the Docker CLI. Then, we ran a Docker application using the docker-cli command and created the equivalent of it on Compose. The next step was to customize the image we used in our first example and deploy it using Compose.

In the next chapter, we shall create an application that will run and interact with a Redis database using Compose.