Synnefo » snf-ganeti

- Hail and hbal now have the (optional) capability of accessing average CPU

  load information through the monitoring deamon, and to use it to dynamically

  adapt the allocation of instances.

Misc changes

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New features

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- DRBD 8.4 support. Depending on the installed DRBD version, Ganeti now uses

  the correct command syntax. It is possible to use different DRBD versions

  on different nodes as long as they are compatible to each other. This

HOTPLUG_OPT = cli_option("--hotplug", dest="hotplug",

                         action="store_true", default=False,

#: Options provided by all commands

COMMON_OPTS = [DEBUG_OPT, REASON_OPT]

  nics = _ConvertNicDiskModifications(opts.nics)

  for action, _, __ in nics:

      usertext = ("You are about to hot-modify a NIC. This will be done"

                  " by removing the exisiting and then adding a new one."

                  " Network connection might be lost. Continue?")

    ToStdout("Modified instance %s", args[0])

    for param, data in result:

      ToStdout(" - %-5s -> %s", param, data)

  return 0

      if op == constants.DDM_REMOVE:

        assert not params

        changes = [("%s/%s" % (kind, absidx), "remove")]

        assert container[absidx] == item

        del container[absidx]

      elif op == constants.DDM_MODIFY:

  def _HotplugDevice(self, action, dev_type, device, extra, seq):

    self.LogInfo("Trying to hotplug device...")

    result = self.rpc.call_hotplug_device(self.instance.primary_node,

                                          self.instance, action, dev_type,

                                          (device, self.instance),

    if result.fail_msg:

      self.LogWarning("Could not hotplug device: %s" % result.fail_msg)

      self.LogInfo("Continuing execution..")

    else:

      self.LogInfo("Hotplug done.")

  def _CreateNewDisk(self, idx, params, _):

    """Creates a new disk.

                         disks=[(idx, disk, 0)],

                         cleanup=new_disks)

    if self.op.hotplug:

      result = self.rpc.call_blockdev_assemble(self.instance.primary_node,

                                               (disk, self.instance),

                                               self.instance.name, True, idx)

      if result.fail_msg:

        self.LogWarning("Can't assemble newly created disk %d: %s",

                        idx, result.fail_msg)

      else:

        _, link_name = result.payload

  def _PostAddDisk(self, _, disk):

    if not WaitForSync(self, self.instance, disks=[disk],

    """Removes a disk.

    """

    if self.op.hotplug:

      ShutdownInstanceDisks(self, self.instance, [root])

    (anno_disk,) = AnnotateDiskParams(self.instance, [root], self.cfg)

    if root.dev_type in constants.DTS_DRBD:

      self.cfg.AddTcpUdpPort(root.logical_id[2])

  def _CreateNewNic(self, idx, params, private):

    """Creates data structure for a new network interface.

                       nicparams=nicparams)

    nobj.uuid = self.cfg.GenerateUniqueID(self.proc.GetECId())

      ("nic.%d" % idx,

       "add:mac=%s,ip=%s,mode=%s,link=%s,network=%s" %

       (mac, ip, private.filled[constants.NIC_MODE],

       private.filled[constants.NIC_LINK], net)),

      ]

  def _ApplyNicMods(self, idx, nic, params, private):

    """Modifies a network interface.

        changes.append(("nic.%s/%d" % (key, idx), val))

    if self.op.hotplug:

    return changes

  def _RemoveNic(self, idx, nic, _):

    if self.op.hotplug:

  def Exec(self, feedback_fn):

    """Modifies an instance.

If ``--ignore-ipolicy`` is given any instance policy violations occuring

during this operation are ignored.

effect without the need of actual reboot. Please note that this feature

See **ganeti**\(7) for a description of ``--submit`` and other common

options.

    qa_config.TestEnabled("instance-device-hotplug"):

    args.extend([

      ["--net", "-1:add", "--hotplug"],

      ["--net", "-1:remove", "--hotplug"],

      ["--disk", "-1:add,size=1G", "--hotplug"],

      ["--disk", "-1:remove", "--hotplug"],