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

Running the First Application Using Compose

In the previous chapter, we learned about Docker Compose and how we can benefit from its features. We learned how it works and interacts with the Docker engine and how it integrates with the Docker command-line interface (CLI). By installing Compose on the workstation of our choice, we were able to run some application examples.

Using Compose throughout an application’s development can be a streamlined process that can have a significant role in increasing productivity. By the time you have completed this chapter, you will be able to package your application and run it on Compose. You’ll be able to interact with the application and enhance its functionality by interacting with a database. Once the basic multi-container application is deployed using Compose, we shall dive deeper into more Compose functionalities such as health checks, labels, environment variables, and command override.

We will cover the following main...