I need to copy a few files into my docker container.. Should be easy right? Turns out it’s not so trivial. In Docker 1.0.0 and earlier the docker cp command can be used to copy files from a container to the host, but not the other way around… Most of the time you can work around this by using an ADD statement in the Dockerfile but I often need to populate some data within data-only volume containers before I start other containers that use the data.