Restores Docker volumes from tar archives.

restore-docker-volumes.sh

#!/usr/bin/env bash

usage() {
cat <<EOF
Usage: $0 VOLUME [VOLUME ...]

Restore Docker volumes from tar archives.
EOF
}

if (( $# < 1 )); then
    usage
    exit 1
fi

for volume in "$@"; do
    docker run --rm --volume=${volume}:/data --volume=$(pwd):/backup:ro ubuntu \
        bash -c "cd /data && tar xf /backup/${volume}.tar --strip 1" \
        && echo "Restored volume ${volume} from ${volume}.tar"
done