Copy multiple local files to docker container

The following command should copy whole directory data with its content of a data directory to your desired destination:

docker cp data/ sandbox_web_1:/usr/src/app/

Tested on Docker version 1.12.1, but I haven't found any changes to a cp command in a the release 1.12.1

There is a proposal for docker cp to support wildcards (7710), but it is not implemented yet.

So that leaves you with bash scripting, using docker cp for each file:

for f in data/*txt; do docker cp $f sandbox_web_1:/usr/src/app/data/; done