Create persistent data.
docker volume create [volume-name]
can also be created automatically by docker if needed
Mount the volume when running the docker.
docker run --mount type=volume,src=[ volume-name ],target=/etc/todos [ docker-name ]
#or
docker run -v [ volume-name ]:[ containerPath ] [ docker-name ]
docker volume ls
docker volume inspect [ volumeName ]
docker volume rm [ volumeName ]