docker-compose.yml

# the name of the container will be app_api_1
# this is based on the directory name plus the name here
api:
  build: .
  # build from a Dockerfile in the current directory (.)
  ports:
    - "80:8080"
    # the external port 80 is mapped to the internal port 8080
  volumes:
    - /home/docker:/home/data
    # the /home/docker directory on the host is mapped to
    # the /home/data directory in the container that we created
    # in the Dockerfile.
    # this means that any files saved to /home/ will be stored
    # on the docker host.