raise errors.OpPrereqError(msg, errors.ECODE_INVAL)
+def _ComputeNewInstanceViolations(old_ipolicy, new_ipolicy, instances):
+ """Computes a set of any instances that would violate the new ipolicy.
+
+ @param old_ipolicy: The current (still in-place) ipolicy
+ @param new_ipolicy: The new (to become) ipolicy
+ @param instances: List of instances to verify
+ @return: A list of instances which violates the new ipolicy but did not before
+
+ """
+ return (_ComputeViolatingInstances(old_ipolicy, instances) -
+ _ComputeViolatingInstances(new_ipolicy, instances))
+
+
def _ExpandItemName(fn, name, kind):
"""Expand an item name.
return cluster.SimpleFillIPolicy(group.ipolicy)
+def _ComputeViolatingInstances(ipolicy, instances):
+ """Computes a set of instances who violates given ipolicy.
+
+ @param ipolicy: The ipolicy to verify
+ @type instances: object.Instance
+ @param instances: List of instances to verify
+ @return: A frozenset of instance names violating the ipolicy
+
+ """
+ return frozenset([inst.name for inst in instances
+ if _ComputeIPolicyInstanceViolation(ipolicy, inst)])
+
+
def _CheckNicsBridgesExist(lu, target_nics, target_node):
"""Check that the brigdes needed by a list of nics exist.
# all nodes to be modified.
self.needed_locks = {
locking.LEVEL_NODE: locking.ALL_SET,
+ locking.LEVEL_INSTANCE: locking.ALL_SET,
+ locking.LEVEL_NODEGROUP: locking.ALL_SET,
+ }
+ self.share_locks = {
+ locking.LEVEL_NODE: 1,
+ locking.LEVEL_INSTANCE: 1,
+ locking.LEVEL_NODEGROUP: 1,
}
- self.share_locks[locking.LEVEL_NODE] = 1
def BuildHooksEnv(self):
"""Build hooks env.
self.new_ipolicy = _GetUpdatedIPolicy(cluster.ipolicy, self.op.ipolicy,
group_policy=False)
+ all_instances = self.cfg.GetAllInstancesInfo().values()
+ violations = set()
+ for group in self.cfg.GetAllNodeGroupsInfo().values():
+ instances = frozenset([inst for inst in all_instances
+ if compat.any(node in group.members
+ for node in inst.all_nodes)])
+ new_ipolicy = objects.FillIPolicy(self.new_ipolicy, group.ipolicy)
+ new = _ComputeNewInstanceViolations(_CalculateGroupIPolicy(cluster,
+ group),
+ new_ipolicy, instances)
+ if new:
+ violations.update(new)
+
+ if violations:
+ self.LogWarning("After the ipolicy change the following instances"
+ " violate them: %s",
+ utils.CommaJoin(violations))
+
if self.op.nicparams:
utils.ForceDictType(self.op.nicparams, constants.NICS_PARAMETER_TYPES)
self.new_nicparams = cluster.SimpleFillNIC(self.op.nicparams)
self._GoReconnect(False)
self._WaitUntilSync()
+ # If the instance's disk template is `rbd' and there was a successful
+ # migration, unmap the device from the source node.
+ if self.instance.disk_template == constants.DT_RBD:
+ disks = _ExpandCheckDisks(instance, instance.disks)
+ self.feedback_fn("* unmapping instance's disks from %s" % source_node)
+ for disk in disks:
+ result = self.rpc.call_blockdev_shutdown(source_node, disk)
+ msg = result.fail_msg
+ if msg:
+ logging.error("Migration was successful, but couldn't unmap the"
+ " block device %s on source node %s: %s",
+ disk.iv_name, source_node, msg)
+ logging.error("You need to unmap the device %s manually on %s",
+ disk.iv_name, source_node)
+
self.feedback_fn("* done")
def _ExecFailover(self):
elif disk_template == constants.DT_BLOCK:
result.append(constants.DISK_LD_DEFAULTS[constants.LD_BLOCKDEV])
+ elif disk_template == constants.DT_RBD:
+ params = {
+ constants.LDP_POOL: dt_params[constants.RBD_POOL]
+ }
+ params = \
+ objects.FillDict(constants.DISK_LD_DEFAULTS[constants.LD_RBD],
+ params)
+ result.append(params)
+
return result
mode=disk[constants.IDISK_MODE],
params=ld_params[0])
disks.append(disk_dev)
+ elif template_name == constants.DT_RBD:
+ if secondary_nodes:
+ raise errors.ProgrammerError("Wrong template configuration")
+
+ names = _GenerateUniqueNames(lu, [".rbd.disk%d" % (base_index + i)
+ for i in range(disk_count)])
+
+ for idx, disk in enumerate(disk_info):
+ disk_index = idx + base_index
+ disk_dev = objects.Disk(dev_type=constants.LD_RBD,
+ size=disk[constants.IDISK_SIZE],
+ logical_id=("rbd", names[idx]),
+ iv_name="disk/%d" % disk_index,
+ mode=disk[constants.IDISK_MODE],
+ params=ld_params[0])
+ disks.append(disk_dev)
else:
raise errors.ProgrammerError("Invalid disk template '%s'" % template_name)
constants.DT_FILE: None,
constants.DT_SHARED_FILE: 0,
constants.DT_BLOCK: 0,
+ constants.DT_RBD: 0,
}
if disk_template not in req_size_dict:
self.diskparams = group_info.diskparams
if not self.adopt_disks:
- # Check lv size requirements, if not adopting
- req_sizes = _ComputeDiskSizePerVG(self.op.disk_template, self.disks)
- _CheckNodesFreeDiskPerVG(self, nodenames, req_sizes)
+ if self.op.disk_template == constants.DT_RBD:
+ # _CheckRADOSFreeSpace() is just a placeholder.
+ # Any function that checks prerequisites can be placed here.
+ # Check if there is enough space on the RADOS cluster.
+ _CheckRADOSFreeSpace()
+ else:
+ # Check lv size requirements, if not adopting
+ req_sizes = _ComputeDiskSizePerVG(self.op.disk_template, self.disks)
+ _CheckNodesFreeDiskPerVG(self, nodenames, req_sizes)
elif self.op.disk_template == constants.DT_PLAIN: # Check the adoption data
all_lvs = set(["%s/%s" % (disk[constants.IDISK_VG],
return list(iobj.all_nodes)
+def _CheckRADOSFreeSpace():
+ """Compute disk size requirements inside the RADOS cluster.
+
+ """
+ # For the RADOS cluster we assume there is always enough space.
+ pass
+
+
class LUInstanceConsole(NoHooksLU):
"""Connect to an instance's console.
self.disk = instance.FindDisk(self.op.disk)
if instance.disk_template not in (constants.DT_FILE,
- constants.DT_SHARED_FILE):
+ constants.DT_SHARED_FILE,
+ constants.DT_RBD):
# TODO: check the free disk space for file, when that feature will be
# supported
_CheckNodesFreeDiskPerVG(self, nodenames,
self.group_uuid = self.cfg.LookupNodeGroup(self.op.group_name)
self.needed_locks = {
+ locking.LEVEL_INSTANCE: [],
locking.LEVEL_NODEGROUP: [self.group_uuid],
}
+ self.share_locks[locking.LEVEL_INSTANCE] = 1
+
+ def DeclareLocks(self, level):
+ if level == locking.LEVEL_INSTANCE:
+ assert not self.needed_locks[locking.LEVEL_INSTANCE]
+
+ # Lock instances optimistically, needs verification once group lock has
+ # been acquired
+ self.needed_locks[locking.LEVEL_INSTANCE] = \
+ self.cfg.GetNodeGroupInstances(self.group_uuid)
+
def CheckPrereq(self):
"""Check prerequisites.
"""
+ owned_instances = frozenset(self.owned_locks(locking.LEVEL_INSTANCE))
+
+ # Check if locked instances are still correct
+ _CheckNodeGroupInstances(self.cfg, self.group_uuid, owned_instances)
+
self.group = self.cfg.GetNodeGroup(self.group_uuid)
+ cluster = self.cfg.GetClusterInfo()
if self.group is None:
raise errors.OpExecError("Could not retrieve group '%s' (UUID: %s)" %
self.op.ipolicy,
group_policy=True)
+ new_ipolicy = cluster.SimpleFillIPolicy(self.new_ipolicy)
+ inst_filter = lambda inst: inst.name in owned_instances
+ instances = self.cfg.GetInstancesInfoByFilter(inst_filter).values()
+ violations = \
+ _ComputeNewInstanceViolations(_CalculateGroupIPolicy(cluster,
+ self.group),
+ new_ipolicy, instances)
+
+ if violations:
+ self.LogWarning("After the ipolicy change the following instances"
+ " violate them: %s",
+ utils.CommaJoin(violations))
+
def BuildHooksEnv(self):
"""Build hooks env.
projects / ganeti-local / blobdiff