docker-compose/docs/reference/compose_cp.md

docker compose cp

Copy files/folders between a service container and the local filesystem

Options

Name	Type	Default	Description
--all			Copy to all the containers of the service.
-a, --archive			Archive mode (copy all uid/gid information)
-L, --follow-link			Always follow symbol link in SRC_PATH
--index	int	1	Index of the container if there are multiple instances of a service [default: 1].