system/notes/docker.md

Backup and restore volumes

Backup a volume

docker run \
  --rm \
  --volumes-from source_container_name \
  -v $(pwd):/backup \
  busybox tar cvf /backup/backup.tar /path/to/volume

Restore volume from a backup

docker run \
  --rm \
  --volumes-from target_container_name \
  -v $(pwd):/backup \
  busybox sh -c "cd /path/to/volume && tar xvf /backup/backup.tar --strip 1"