Chapter 2. Application Container Management

In this lesson, we will scale one of the containers we built into a multi-tier setup. This will involve splitting the application into different logical sections. For example, we could have an application running on a Docker container and the application's data in a separate database container; however, both should work as a single entity. For this, we will use Docker's tool for running multi-container applications. The tool goes by the name docker-compose. In summary, docker-compose is the tool used for defining and running multi-container Docker applications.