Synnefo » snf-ganeti

def _UpgradeSerializedRuntime(serialized_runtime):

  """Upgrade runtime data

  Remove any deprecated fields or change the format of the data.

  The runtime files are not upgraded when Ganeti is upgraded, so the required

  modification have to be performed here.

  @return: (cmd, nic dicts, hvparams, bdev dicts)

  @rtype: tuple

  kvm_cmd, serialized_nics, hvparams = loaded_runtime[:3]

  if len(loaded_runtime) >= 4:

    serialized_disks = loaded_runtime[3]

    serialized_disks = []

  for nic in serialized_nics:

    # Add a dummy uuid slot if an pre-2.8 NIC is found

    if "uuid" not in nic:

      nic["uuid"] = utils.NewUUID()

  return kvm_cmd, serialized_nics, hvparams, serialized_disks

def _AnalyzeSerializedRuntime(serialized_runtime):

  """Return runtime entries for a serialized runtime file

  @type serialized_runtime: string

  @param serialized_runtime: raw text data read from actual runtime file

  @return: (cmd, nics, hvparams, bdevs)

  @rtype: tuple

  """

  kvm_cmd, serialized_nics, hvparams, serialized_disks = \

    _UpgradeSerializedRuntime(serialized_runtime)