Copy contents of CONTAINER volumes to DEST_FOLDER

copy-docker-container-volumes.sh

# Copy contents of CONTAINER volumes to DEST_FOLDER
# usage: volcp CONTAINER DEST_FOLDER
volcp() (
    set -e
    if [[ -z "$2" ]]; then
        echo "ERROR: Destination folder must be specified as second argument" >&2
        exit 1
    fi
    echo "  To mount volumes please run:"
    echo "docker run \\"
    docker inspect -f '{{json .Mounts}}' "$1" | jq '.[] | .Source, .Destination' | \
        while read Source; do
            read Destination
            Source=$(eval echo "$Source")
            Destination=$(eval echo "$Destination")
            mkdir -p "$2$Destination"
            rmdir "$2$Destination"
            cp -a "$Source" "$2$Destination"
            echo "    -v \"\$(pwd)$Destination:$Destination\" \\"
        done
    echo "    ..."
)

# sudo -i
# source copy-docker-container-volumes.sh
# mkdir container_volumes
# volcp mycontainer container_volumes