Pray how did you manage to do it?'

    `In my youth,' said his father, `I took to the law,
      And argued each case with my wife;
    And the muscular strength, which it gave to my jaw,
      Has lasted the rest of my life.'

    `You are old,' said the youth, `one would hardly suppose
      That your eye was as steady as ever;
    Yet you balanced an eel on the end of your nose--

	if [ -f "$DOCKER_OPTS_FILE" ]; then
	cat >> "${DOCKER_OPTS_FILE}" <<EOF
  $1
EOF
	fi
}

function disable_aufs() {
  # disable aufs module if aufs is loaded
  if lsmod | grep "aufs" &> /dev/null ; then
    sudo modprobe -r aufs
  fi
}

function set_docker_options_non_ubuntu() {
  # set docker options mtu and storage driver for non-ubuntu
  # as it is default for ubuntu