version : '3'

services: #Each entry in the services section will create a separate container when docker-compose is run
  distro:
    image: alpine #Image would be download at RunTime
    restart : always #Directive is used to indicate that the container should always restart
    container_name: Custom_alpine #Directive is used to override the randomly generated container name and replace it with a name that is easier to remember and work with.
    entrypoint: tail -f /dev/null #tail -f is an ongoing process, so it will run indefinitely and prevent the container from stopping. The default entrypoint is overridden to keep the container running.