Synnefo » snf-ganeti

def SnapshotInstance(opts, args):

  """Snapshot an instance.

  @param opts: the command line options selected by the user

  @type args: list

  @param args: should contain only one element, the name of the

      instance to be reinstalled

  @rtype: int

  @return: the desired exit code

  """

  instance_name  = args[0]

  inames = _ExpandMultiNames(_EXPAND_INSTANCES, [instance_name])

  if not inames:

    raise errors.OpPrereqError("Selection filter does not match any instances",

                               errors.ECODE_INVAL)

  multi_on = len(inames) > 1

  jex = JobExecutor(verbose=multi_on, opts=opts)

  for instance_name in inames:

    op = opcodes.OpInstanceSnapshot(instance_name=instance_name,

                                    disks=opts.disks)

    jex.QueueJob(instance_name, op)

  results = jex.WaitOrShow(not opts.submit_only)

  if compat.all(map(compat.fst, results)):

    return constants.EXIT_SUCCESS

  else:

    return constants.EXIT_FAILURE

  "snapshot": (

    SnapshotInstance, [ArgInstance(min=1,max=1)],

    [DISK_OPT, SUBMIT_OPT, DRY_RUN_OPT],

    "<instance>", "Snapshot an instance's disk(s)"),