how to upload directory into docker container code example

Example 1: copy file to docker container

docker cp foo.txt mycontainer:/foo.txt

Example 2: docker cp volume

Usage
docker cp [OPTIONS] CONTAINER:SRC_PATH DEST_PATH|-
docker cp [OPTIONS] SRC_PATH|- CONTAINER:DEST_PATH

To copy data from the volume to the host, use a temporary container that has the volume mounted.

CID=$(docker run -d -v hello:/hello busybox true)
docker cp $CID:/hello ./
To copy a directory from the host to volume

cd local_dir
docker cp . $CID:/hello/
Then clean up the temporary container.

docker rm $CID

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