# maybe even have the group as an instance
    group = miniboss.Group(name="foobar")

    group.database = miniboss.Service(
        name="appdb",
        image="postgres:10.6",
        env={
            "POSTGRES_PASSWORD": "dbpwd",
            "POSTGRES_USER": "dbuser",
            "POSTGRES_DB": "appdb"
        },
        ports={5432: 5433}
    )