Dockerfile create one container. Docker Compose is used to create multi container application. Docker compose use Dockerfile to create container.

https://docs.docker.com/compose/

To install docker-compose on Ubuntu/Debian, run

apt install docker-compose

Docker compose save its configuration in file docker-compose.yml in YML format.

docker-compose quick start tutorial available at

https://docs.docker.com/compose/gettingstarted/

To build image, run

docker-compose build

To build image and start container, run

docker-compose up -d

To stop containers created from docker-compose, run

docker-compose kill

To delete all containers, run

docker-composer rm