Save and close that file. Building with Docker Compose Now that we have our docker-compose.yml file constructed, it’s time to build the application.

The build context is the set of files located at the specified PATH or URL. Those files are sent to the Docker daemon during the build so it can use them in the filesystem of the image.

Learn how to create and use a Docker secret from a file for secure storage of sensitive data with this step-by-step tutorial.