put_archive-docker-py.py

import tarfile
import uuid
import StringIO
import docker

def main():
  client = docker.from_env()
  container = client.containers.get(uuidOfContainer)

  toSave = "blablabla"

  tar_unique_filename = str(uuid.uuid4()) + ".tar"
  file_unique_filename = str(uuid.uuid4()) + ".txt"
  tar = tarfile.open(tar_unique_filename, "w")
  stringToSave = StringIO.StringIO()
  stringToSave.write(toSave)
  stringToSave.seek(0)
  info = tarfile.TarInfo(file_unique_filename)
  info.size = len(stringToSave.buf)
  tar.addfile(tarinfo = info, fileobj = stringToSave)
  tar.close()

  container.put_archive("/data", tar_unique_filename)