https://docs.docker.com/compose/cli-command/#install-on-linux

cli
docker
    compose
        ...

compose-env:
https://docs.docker.com/compose/env-file/

tools:
https://github.com/vishnubob/wait-for-it
    services:
        web:
            ...
            depends_on:
                - db
            entrypoint: "./wait-for-it.sh db:5432"