Push a local Docker volume to a remote host via SSH.

push_docker_volume.sh

#!/usr/bin/env bash

set -euxo pipefail

host=${1?The first argument needs to be an SSH remote host.}
volume=${2?The second argument needs to be a Docker volume name.}

docker run --rm -v ${volume}:/from alpine ash -c \
    'cd /from ; tar -cf - . ' | \
    ssh ${host} \
    "docker run --rm -i -v ${volume}:/to alpine ash -c 'cd /to ; tar -xpvf - '"