def Exec(self, feedback_fn):
"""Start the instance.
"""
if not self.op.no_remember:
self.instance = self.cfg.MarkInstanceUp(self.instance.uuid)
if self.primary_offline:
assert self.op.ignore_offline_nodes
self.LogInfo("Primary node offline, marked instance as started")
else:
if self.requires_cleanup:
result = self.rpc.call_instance_shutdown(
self.instance.primary_node, self.instance,
self.op.shutdown_timeout, self.op.reason)
result.Raise("Could not shutdown instance '%s'" %
self.instance.name)
ShutdownInstanceDisks(self, self.instance)
StartInstanceDisks(self, self.instance, self.op.force)
self.instance = self.cfg.GetInstanceInfo(self.instance.uuid)
result = \
self.rpc.call_instance_start(self.instance.primary_node,
(self.instance, self.op.hvparams,
self.op.beparams),
self.op.startup_paused, self.op.reason)
if result.fail_msg:
ShutdownInstanceDisks(self, self.instance)
result.Raise("Could not start instance '%s'" %
self.instance.name)
def ZeroFreeSpace(self, feedback_fn):
"""Zeroes the free space on a shutdown instance.
@type feedback_fn: function
@param feedback_fn: Function used to log progress
"""
assert self.op.zeroing_timeout_fixed is not None
assert self.op.zeroing_timeout_per_mib is not None
zeroing_image = self.cfg.GetZeroingImage()
src_node_uuid = self.instance.primary_node
disk_size = self._DetermineImageSize(zeroing_image, src_node_uuid)
# Calculate the sum prior to adding the temporary disk
instance_disks_size_sum = self._InstanceDiskSizeSum()
with TemporaryDisk(self, self.instance, disk_size, feedback_fn):
feedback_fn("Activating instance disks")
StartInstanceDisks(self, self.instance, False)
feedback_fn("Imaging disk with zeroing image")
ImageDisks(self, self.instance, zeroing_image)
feedback_fn("Starting instance with zeroing image")
result = self.rpc.call_instance_start(src_node_uuid,
(self.instance, [], []),
False, self.op.reason)
result.Raise(
"Could not start instance %s when using the zeroing image "
"%s" % (self.instance.name, zeroing_image))
# First wait for the instance to start up
running_check = lambda: IsInstanceRunning(
self, self.instance, check_user_shutdown=True)
instance_up = retry.SimpleRetry(True, running_check, 5.0,
self.op.shutdown_timeout)
if not instance_up:
raise errors.OpExecError(
"Could not boot instance when using the "
"zeroing image %s" % zeroing_image)
feedback_fn("Instance is up, now awaiting shutdown")
# Then for it to be finished, detected by its shutdown
timeout = self.op.zeroing_timeout_fixed + \
self.op.zeroing_timeout_per_mib * instance_disks_size_sum
instance_up = retry.SimpleRetry(False, running_check, 20.0,
timeout)
if instance_up:
self.LogWarning(
"Zeroing not completed prior to timeout; instance will"
"be shut down forcibly")
feedback_fn("Zeroing completed!")
def Exec(self, feedback_fn):
"""Reboot the instance.
"""
cluster = self.cfg.GetClusterInfo()
remote_info = self.rpc.call_instance_info(
self.instance.primary_node, self.instance.name,
self.instance.hypervisor,
cluster.hvparams[self.instance.hypervisor])
remote_info.Raise("Error checking node %s" %
self.cfg.GetNodeName(self.instance.primary_node))
instance_running = bool(remote_info.payload)
current_node_uuid = self.instance.primary_node
if instance_running and \
self.op.reboot_type in [constants.INSTANCE_REBOOT_SOFT,
constants.INSTANCE_REBOOT_HARD]:
result = self.rpc.call_instance_reboot(current_node_uuid,
self.instance,
self.op.reboot_type,
self.op.shutdown_timeout,
self.op.reason)
result.Raise("Could not reboot instance")
else:
if instance_running:
result = self.rpc.call_instance_shutdown(
current_node_uuid, self.instance, self.op.shutdown_timeout,
self.op.reason)
result.Raise("Could not shutdown instance for full reboot")
ShutdownInstanceDisks(self, self.instance)
self.instance = self.cfg.GetInstanceInfo(self.instance.uuid)
else:
self.LogInfo("Instance %s was already stopped, starting now",
self.instance.name)
StartInstanceDisks(self, self.instance, self.op.ignore_secondaries)
self.instance = self.cfg.GetInstanceInfo(self.instance.uuid)
result = self.rpc.call_instance_start(current_node_uuid,
(self.instance, None, None),
False, self.op.reason)
msg = result.fail_msg
if msg:
ShutdownInstanceDisks(self, self.instance)
self.instance = self.cfg.GetInstanceInfo(self.instance.uuid)
raise errors.OpExecError("Could not start instance for"
" full reboot: %s" % msg)
self.cfg.MarkInstanceUp(self.instance.uuid)
def Exec(self, feedback_fn):
"""Reinstall the instance.
"""
os_image = objects.GetOSImage(self.op.osparams)
if os_image is not None:
feedback_fn("Using OS image '%s'" % os_image)
else:
os_image = objects.GetOSImage(self.instance.osparams)
os_type = self.op.os_type
if os_type is not None:
feedback_fn("Changing OS scripts to '%s'..." % os_type)
self.instance.os = os_type
self.cfg.Update(self.instance, feedback_fn)
else:
os_type = self.instance.os
if not os_image and not os_type:
self.LogInfo("No OS scripts or OS image specified or found in the"
" instance's configuration, nothing to install")
else:
if self.op.osparams is not None:
self.instance.osparams = self.op.osparams
if self.op.osparams_private is not None:
self.instance.osparams_private = self.op.osparams_private
self.cfg.Update(self.instance, feedback_fn)
StartInstanceDisks(self, self.instance, None)
self.instance = self.cfg.GetInstanceInfo(self.instance.uuid)
try:
if os_image:
ImageDisks(self, self.instance, os_image)
if os_type:
self._ReinstallOSScripts(self.instance, self.osparams,
self.op.debug_level)
UpdateMetadata(feedback_fn,
self.rpc,
self.instance,
osparams_public=self.osparams,
osparams_private=self.osparams_private,
osparams_secret=self.osparams_secret)
finally:
ShutdownInstanceDisks(self, self.instance)
def Exec(self, feedback_fn):
"""Start the instance.
"""
if not self.op.no_remember:
self.instance = self.cfg.MarkInstanceUp(self.instance.uuid)
if self.primary_offline:
assert self.op.ignore_offline_nodes
self.LogInfo("Primary node offline, marked instance as started")
else:
StartInstanceDisks(self, self.instance, self.op.force)
self.instance = self.cfg.GetInstanceInfo(self.instance.uuid)
result = \
self.rpc.call_instance_start(self.instance.primary_node,
(self.instance, self.op.hvparams,
self.op.beparams),
self.op.startup_paused, self.op.reason)
msg = result.fail_msg
if msg:
ShutdownInstanceDisks(self, self.instance)
raise errors.OpExecError("Could not start instance: %s" % msg)
def Exec(self, feedback_fn):
"""Export an instance to an image in the cluster.
"""
assert self.op.mode in constants.EXPORT_MODES
src_node_uuid = self.instance.primary_node
if self.op.shutdown:
# shutdown the instance, but not the disks
feedback_fn("Shutting down instance %s" % self.instance.name)
result = self.rpc.call_instance_shutdown(src_node_uuid,
self.instance,
self.op.shutdown_timeout,
self.op.reason)
# TODO: Maybe ignore failures if ignore_remove_failures is set
result.Raise(
"Could not shutdown instance %s on"
" node %s" %
(self.instance.name, self.cfg.GetNodeName(src_node_uuid)))
if self.op.zero_free_space:
self.ZeroFreeSpace(feedback_fn)
activate_disks = not self.instance.disks_active
if activate_disks:
# Activate the instance disks if we're exporting a stopped instance
feedback_fn("Activating disks for %s" % self.instance.name)
StartInstanceDisks(self, self.instance, None)
self.instance = self.cfg.GetInstanceInfo(self.instance.uuid)
try:
helper = masterd.instance.ExportInstanceHelper(
self, feedback_fn, self.instance)
helper.CreateSnapshots()
try:
if (self.op.shutdown
and self.instance.admin_state == constants.ADMINST_UP
and not self.op.remove_instance):
assert self.instance.disks_active
feedback_fn("Starting instance %s" % self.instance.name)
result = self.rpc.call_instance_start(
src_node_uuid, (self.instance, None, None), False,
self.op.reason)
msg = result.fail_msg
if msg:
feedback_fn("Failed to start instance: %s" % msg)
ShutdownInstanceDisks(self, self.instance)
raise errors.OpExecError(
"Could not start instance: %s" % msg)
if self.op.mode == constants.EXPORT_MODE_LOCAL:
(fin_resu,
dresults) = helper.LocalExport(self.dst_node,
self.op.compress)
elif self.op.mode == constants.EXPORT_MODE_REMOTE:
connect_timeout = constants.RIE_CONNECT_TIMEOUT
timeouts = masterd.instance.ImportExportTimeouts(
connect_timeout)
(key_name, _, _) = self.x509_key_name
dest_ca_pem = \
OpenSSL.crypto.dump_certificate(OpenSSL.crypto.FILETYPE_PEM,
self.dest_x509_ca)
(fin_resu, dresults) = helper.RemoteExport(
self.dest_disk_info, key_name, dest_ca_pem,
self.op.compress, timeouts)
finally:
helper.Cleanup()
# Check for backwards compatibility
assert len(dresults) == len(self.instance.disks)
assert compat.all(isinstance(i, bool) for i in dresults), \
"Not all results are boolean: %r" % dresults
finally:
if activate_disks:
feedback_fn("Deactivating disks for %s" % self.instance.name)
ShutdownInstanceDisks(self, self.instance)
if not (compat.all(dresults) and fin_resu):
failures = []
if not fin_resu:
failures.append("export finalization")
if not compat.all(dresults):
fdsk = utils.CommaJoin(idx
for (idx, dsk) in enumerate(dresults)
if not dsk)
failures.append("disk export: disk(s) %s" % fdsk)
raise errors.OpExecError("Export failed, errors in %s" %
utils.CommaJoin(failures))
# At this point, the export was successful, we can cleanup/finish
# Remove instance if requested
if self.op.remove_instance:
feedback_fn("Removing instance %s" % self.instance.name)
RemoveInstance(self, feedback_fn, self.instance,
self.op.ignore_remove_failures)
if self.op.mode == constants.EXPORT_MODE_LOCAL:
self._CleanupExports(feedback_fn)
return fin_resu, dresults
try:
disk_size = DetermineImageSize(self, zeroing_image, src_node_uuid)
except errors.OpExecError, err:
raise errors.OpExecError(
"Could not create temporary disk for zeroing:"
" %s", err)
# Calculate the sum prior to adding the temporary disk
instance_disks_size_sum = self._InstanceDiskSizeSum()
with TemporaryDisk(
self, self.instance,
[(constants.DT_PLAIN, constants.DISK_RDWR, disk_size)],
feedback_fn):
feedback_fn("Activating instance disks")
StartInstanceDisks(self, self.instance, False)
feedback_fn("Imaging disk with zeroing image")
ImageDisks(self, self.instance, zeroing_image)
feedback_fn("Starting instance with zeroing image")
result = self.rpc.call_instance_start(src_node_uuid,
(self.instance, [], []),
False, self.op.reason)
result.Raise(
"Could not start instance %s when using the zeroing image "
"%s" % (self.instance.name, zeroing_image))
# First wait for the instance to start up
running_check = lambda: IsInstanceRunning(
self, self.instance, prereq=False)
def Exec(self, feedback_fn):
"""Rename the instance.
"""
old_name = self.instance.name
rename_file_storage = False
disks = self.cfg.GetInstanceDisks(self.instance.uuid)
renamed_storage = [
d for d in disks if (d.dev_type in constants.DTS_FILEBASED
and d.dev_type != constants.DT_GLUSTER)
]
if (renamed_storage and self.op.new_name != self.instance.name):
disks = self.cfg.GetInstanceDisks(self.instance.uuid)
old_file_storage_dir = os.path.dirname(disks[0].logical_id[1])
rename_file_storage = True
self.cfg.RenameInstance(self.instance.uuid, self.op.new_name)
# Assert that we have both the locks needed
assert old_name in self.owned_locks(locking.LEVEL_INSTANCE)
assert self.op.new_name in self.owned_locks(locking.LEVEL_INSTANCE)
# re-read the instance from the configuration after rename
renamed_inst = self.cfg.GetInstanceInfo(self.instance.uuid)
disks = self.cfg.GetInstanceDisks(renamed_inst.uuid)
if self.instance.forthcoming:
return renamed_inst.name
if rename_file_storage:
new_file_storage_dir = os.path.dirname(disks[0].logical_id[1])
result = self.rpc.call_file_storage_dir_rename(
renamed_inst.primary_node, old_file_storage_dir,
new_file_storage_dir)
result.Raise("Could not rename on node %s directory '%s' to '%s'"
" (but the instance has been renamed in Ganeti)" %
(self.cfg.GetNodeName(renamed_inst.primary_node),
old_file_storage_dir, new_file_storage_dir))
StartInstanceDisks(self, renamed_inst, None)
renamed_inst = self.cfg.GetInstanceInfo(renamed_inst.uuid)
# update info on disks
info = GetInstanceInfoText(renamed_inst)
for (idx, disk) in enumerate(disks):
for node_uuid in self.cfg.GetInstanceNodes(renamed_inst.uuid):
result = self.rpc.call_blockdev_setinfo(
node_uuid, (disk, renamed_inst), info)
result.Warn(
"Error setting info on node %s for disk %s" %
(self.cfg.GetNodeName(node_uuid), idx), self.LogWarning)
try:
result = self.rpc.call_instance_run_rename(
renamed_inst.primary_node, renamed_inst, old_name,
self.op.debug_level)
result.Warn(
"Could not run OS rename script for instance %s on node %s"
" (but the instance has been renamed in Ganeti)" %
(renamed_inst.name,
self.cfg.GetNodeName(renamed_inst.primary_node)),
self.LogWarning)
finally:
ShutdownInstanceDisks(self, renamed_inst)
return renamed_inst.name
if feedback_fn is not None:
log_feedback = lambda msg: feedback_fn(add_prefix(msg))
else:
log_feedback = lambda _: None
try:
disk_size = DetermineImageSize(lu, vm_image, instance.primary_node)
except errors.OpExecError, err:
raise errors.OpExecError("Could not create temporary disk: %s", err)
with TemporaryDisk(lu, instance,
[(constants.DT_PLAIN, constants.DISK_RDWR, disk_size)],
log_feedback):
log_feedback("Activating helper VM's temporary disks")
StartInstanceDisks(lu, instance, False)
log_feedback("Imaging temporary disks with image %s" % (vm_image, ))
ImageDisks(lu, instance, vm_image)
log_feedback("Starting helper VM")
result = lu.rpc.call_instance_start(instance.primary_node,
(instance, [], []), False,
lu.op.reason)
result.Raise(
add_prefix("Could not start helper VM with image %s" %
(vm_image, )))
# First wait for the instance to start up
running_check = lambda: IsInstanceRunning(lu, instance, prereq=False)
instance_up = retry.SimpleRetry(True, running_check, 5.0,
def HelperVM(lu,
instance,
vm_image,
startup_timeout,
vm_timeout,
log_prefix=None,
feedback_fn=None):
"""Runs a given helper VM for a given instance.
@type lu: L{LogicalUnit}
@param lu: the lu on whose behalf we execute
@type instance: L{objects.Instance}
@param instance: the instance definition
@type vm_image: string
@param vm_image: the name of the helper VM image to dump on a temporary disk
@type startup_timeout: int
@param startup_timeout: how long to wait for the helper VM to start up
@type vm_timeout: int
@param vm_timeout: how long to wait for the helper VM to finish its work
@type log_prefix: string
@param log_prefix: a prefix for all log messages
@type feedback_fn: function
@param feedback_fn: Function used to log progress
"""
if log_prefix:
add_prefix = lambda msg: "%s: %s" % (log_prefix, msg)
else:
add_prefix = lambda msg: msg
if feedback_fn is not None:
log_feedback = lambda msg: feedback_fn(add_prefix(msg))
else:
log_feedback = lambda _: None
try:
disk_size = DetermineImageSize(lu, vm_image, instance.primary_node)
except errors.OpExecError as err:
raise errors.OpExecError("Could not create temporary disk: %s", err)
with TemporaryDisk(lu, instance,
[(constants.DT_PLAIN, constants.DISK_RDWR, disk_size)],
log_feedback):
log_feedback("Activating helper VM's temporary disks")
StartInstanceDisks(lu, instance, False)
log_feedback("Imaging temporary disks with image %s" % (vm_image, ))
ImageDisks(lu, instance, vm_image)
log_feedback("Starting helper VM")
result = lu.rpc.call_instance_start(instance.primary_node,
(instance, [], []), False,
lu.op.reason)
result.Raise(
add_prefix("Could not start helper VM with image %s" %
(vm_image, )))
# First wait for the instance to start up
running_check = lambda: IsInstanceRunning(lu, instance, prereq=False)
instance_up = retry.SimpleRetry(True, running_check, 5.0,
startup_timeout)
if not instance_up:
raise errors.OpExecError(
add_prefix("Could not boot instance using"
" image %s" % (vm_image, )))
log_feedback("Helper VM is up")
def cleanup():
log_feedback("Waiting for helper VM to finish")
# Then for it to be finished, detected by its shutdown
instance_up = retry.SimpleRetry(False, running_check, 20.0,
vm_timeout)
if instance_up:
lu.LogWarning(
add_prefix("Helper VM has not finished within the"
" timeout; shutting it down forcibly"))
return \
lu.rpc.call_instance_shutdown(instance.primary_node,
instance,
constants.DEFAULT_SHUTDOWN_TIMEOUT,
lu.op.reason)
else:
return None
# Run the inner block and handle possible errors
try:
yield
except Exception:
# if the cleanup failed for some reason, log it and just re-raise
result = cleanup()
if result:
result.Warn(
add_prefix("Could not shut down helper VM with image"
" %s within timeout" % (vm_image, )))
log_feedback("Error running helper VM with image %s" %
(vm_image, ))
raise
else:
result = cleanup()
# if the cleanup failed for some reason, throw an exception
if result:
result.Raise(
add_prefix("Could not shut down helper VM with image %s"
" within timeout" % (vm_image, )))
raise errors.OpExecError(
"Error running helper VM with image %s" % (vm_image, ))
log_feedback("Helper VM execution completed")
