Learning source https://github.com/HoanKy/docker_tutorial_v2/blob/master/concepts/4_Docker-compose.md https://docs.docker.com/compose/gettingstarted/ From July 2023 Compose V1 stopped receiving updates. Use Compose V2 instead https://docs.docker.com/compose/migrate/#how-do-i-switch-to-compose-v2 Some definitions: volumes