329 lines
15 KiB
Python
329 lines
15 KiB
Python
# Copyright 2012 IBM Corp.
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License"); you may
|
|
# not use this file except in compliance with the License. You may obtain
|
|
# a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
# License for the specific language governing permissions and limitations
|
|
# under the License.
|
|
|
|
"""Handles all requests to the conductor service."""
|
|
|
|
from oslo_config import cfg
|
|
from oslo_log import log as logging
|
|
import oslo_messaging as messaging
|
|
|
|
from nova import baserpc
|
|
from nova.conductor import manager
|
|
from nova.conductor import rpcapi
|
|
from nova.i18n import _LI, _LW
|
|
from nova import utils
|
|
|
|
conductor_opts = [
|
|
cfg.BoolOpt('use_local',
|
|
default=False,
|
|
help='Perform nova-conductor operations locally'),
|
|
cfg.StrOpt('topic',
|
|
default='conductor',
|
|
help='The topic on which conductor nodes listen'),
|
|
cfg.StrOpt('manager',
|
|
default='nova.conductor.manager.ConductorManager',
|
|
help='Full class name for the Manager for conductor'),
|
|
cfg.IntOpt('workers',
|
|
help='Number of workers for OpenStack Conductor service. '
|
|
'The default will be the number of CPUs available.')
|
|
]
|
|
conductor_group = cfg.OptGroup(name='conductor',
|
|
title='Conductor Options')
|
|
CONF = cfg.CONF
|
|
CONF.register_group(conductor_group)
|
|
CONF.register_opts(conductor_opts, conductor_group)
|
|
|
|
LOG = logging.getLogger(__name__)
|
|
|
|
|
|
class LocalAPI(object):
|
|
"""A local version of the conductor API that does database updates
|
|
locally instead of via RPC.
|
|
"""
|
|
|
|
def __init__(self):
|
|
# TODO(danms): This needs to be something more generic for
|
|
# other/future users of this sort of functionality.
|
|
self._manager = utils.ExceptionHelper(manager.ConductorManager())
|
|
|
|
def wait_until_ready(self, context, *args, **kwargs):
|
|
# nothing to wait for in the local case.
|
|
pass
|
|
|
|
def instance_update(self, context, instance_uuid, **updates):
|
|
"""Perform an instance update in the database."""
|
|
return self._manager.instance_update(context, instance_uuid,
|
|
updates, 'compute')
|
|
|
|
def instance_get_all_by_host(self, context, host, columns_to_join=None):
|
|
return self._manager.instance_get_all_by_host(
|
|
context, host, None, columns_to_join=columns_to_join)
|
|
|
|
def instance_get_all_by_host_and_node(self, context, host, node):
|
|
return self._manager.instance_get_all_by_host(context, host, node,
|
|
None)
|
|
|
|
def migration_get_in_progress_by_host_and_node(self, context, host, node):
|
|
return self._manager.migration_get_in_progress_by_host_and_node(
|
|
context, host, node)
|
|
|
|
def aggregate_metadata_get_by_host(self, context, host,
|
|
key='availability_zone'):
|
|
return self._manager.aggregate_metadata_get_by_host(context,
|
|
host,
|
|
key)
|
|
|
|
def provider_fw_rule_get_all(self, context):
|
|
return self._manager.provider_fw_rule_get_all(context)
|
|
|
|
def block_device_mapping_create(self, context, values):
|
|
return self._manager.block_device_mapping_update_or_create(context,
|
|
values,
|
|
create=True)
|
|
|
|
def block_device_mapping_update(self, context, bdm_id, values):
|
|
values = dict(values)
|
|
values['id'] = bdm_id
|
|
return self._manager.block_device_mapping_update_or_create(
|
|
context, values, create=False)
|
|
|
|
def block_device_mapping_update_or_create(self, context, values):
|
|
return self._manager.block_device_mapping_update_or_create(context,
|
|
values,
|
|
create=None)
|
|
|
|
def block_device_mapping_get_all_by_instance(self, context, instance,
|
|
legacy=True):
|
|
return self._manager.block_device_mapping_get_all_by_instance(
|
|
context, instance, legacy)
|
|
|
|
def vol_usage_update(self, context, vol_id, rd_req, rd_bytes, wr_req,
|
|
wr_bytes, instance, last_refreshed=None,
|
|
update_totals=False):
|
|
return self._manager.vol_usage_update(context, vol_id,
|
|
rd_req, rd_bytes,
|
|
wr_req, wr_bytes,
|
|
instance, last_refreshed,
|
|
update_totals)
|
|
|
|
def compute_node_create(self, context, values):
|
|
return self._manager.compute_node_create(context, values)
|
|
|
|
def compute_node_update(self, context, node, values, prune_stats=False):
|
|
# NOTE(belliott) ignore prune_stats param, it's no longer relevant
|
|
return self._manager.compute_node_update(context, node, values)
|
|
|
|
def compute_node_delete(self, context, node):
|
|
return self._manager.compute_node_delete(context, node)
|
|
|
|
def task_log_get(self, context, task_name, begin, end, host, state=None):
|
|
return self._manager.task_log_get(context, task_name, begin, end,
|
|
host, state)
|
|
|
|
def task_log_begin_task(self, context, task_name, begin, end, host,
|
|
task_items=None, message=None):
|
|
return self._manager.task_log_begin_task(context, task_name,
|
|
begin, end, host,
|
|
task_items, message)
|
|
|
|
def task_log_end_task(self, context, task_name, begin, end, host,
|
|
errors, message=None):
|
|
return self._manager.task_log_end_task(context, task_name,
|
|
begin, end, host,
|
|
errors, message)
|
|
|
|
def security_groups_trigger_handler(self, context, event, *args):
|
|
return self._manager.security_groups_trigger_handler(context,
|
|
event, args)
|
|
|
|
def security_groups_trigger_members_refresh(self, context, group_ids):
|
|
return self._manager.security_groups_trigger_members_refresh(context,
|
|
group_ids)
|
|
|
|
def object_backport(self, context, objinst, target_version):
|
|
return self._manager.object_backport(context, objinst, target_version)
|
|
|
|
|
|
class LocalComputeTaskAPI(object):
|
|
def __init__(self):
|
|
# TODO(danms): This needs to be something more generic for
|
|
# other/future users of this sort of functionality.
|
|
self._manager = utils.ExceptionHelper(
|
|
manager.ComputeTaskManager())
|
|
|
|
def resize_instance(self, context, instance, extra_instance_updates,
|
|
scheduler_hint, flavor, reservations,
|
|
clean_shutdown=True):
|
|
# NOTE(comstud): 'extra_instance_updates' is not used here but is
|
|
# needed for compatibility with the cells_rpcapi version of this
|
|
# method.
|
|
self._manager.migrate_server(
|
|
context, instance, scheduler_hint, live=False, rebuild=False,
|
|
flavor=flavor, block_migration=None, disk_over_commit=None,
|
|
reservations=reservations, clean_shutdown=clean_shutdown)
|
|
|
|
def live_migrate_instance(self, context, instance, host_name,
|
|
block_migration, disk_over_commit):
|
|
scheduler_hint = {'host': host_name}
|
|
self._manager.migrate_server(
|
|
context, instance, scheduler_hint, True, False, None,
|
|
block_migration, disk_over_commit, None)
|
|
|
|
def build_instances(self, context, instances, image,
|
|
filter_properties, admin_password, injected_files,
|
|
requested_networks, security_groups, block_device_mapping,
|
|
legacy_bdm=True):
|
|
utils.spawn_n(self._manager.build_instances, context,
|
|
instances=instances, image=image,
|
|
filter_properties=filter_properties,
|
|
admin_password=admin_password, injected_files=injected_files,
|
|
requested_networks=requested_networks,
|
|
security_groups=security_groups,
|
|
block_device_mapping=block_device_mapping,
|
|
legacy_bdm=legacy_bdm)
|
|
|
|
def unshelve_instance(self, context, instance):
|
|
utils.spawn_n(self._manager.unshelve_instance, context,
|
|
instance=instance)
|
|
|
|
def rebuild_instance(self, context, instance, orig_image_ref, image_ref,
|
|
injected_files, new_pass, orig_sys_metadata,
|
|
bdms, recreate=False, on_shared_storage=False,
|
|
preserve_ephemeral=False, host=None, kwargs=None):
|
|
# kwargs unused but required for cell compatibility.
|
|
utils.spawn_n(self._manager.rebuild_instance, context,
|
|
instance=instance,
|
|
new_pass=new_pass,
|
|
injected_files=injected_files,
|
|
image_ref=image_ref,
|
|
orig_image_ref=orig_image_ref,
|
|
orig_sys_metadata=orig_sys_metadata,
|
|
bdms=bdms,
|
|
recreate=recreate,
|
|
on_shared_storage=on_shared_storage,
|
|
host=host,
|
|
preserve_ephemeral=preserve_ephemeral)
|
|
|
|
|
|
class API(LocalAPI):
|
|
"""Conductor API that does updates via RPC to the ConductorManager."""
|
|
|
|
def __init__(self):
|
|
self._manager = rpcapi.ConductorAPI()
|
|
self.base_rpcapi = baserpc.BaseAPI(topic=CONF.conductor.topic)
|
|
|
|
def wait_until_ready(self, context, early_timeout=10, early_attempts=10):
|
|
'''Wait until a conductor service is up and running.
|
|
|
|
This method calls the remote ping() method on the conductor topic until
|
|
it gets a response. It starts with a shorter timeout in the loop
|
|
(early_timeout) up to early_attempts number of tries. It then drops
|
|
back to the globally configured timeout for rpc calls for each retry.
|
|
'''
|
|
attempt = 0
|
|
timeout = early_timeout
|
|
# if we show the timeout message, make sure we show a similar
|
|
# message saying that everything is now working to avoid
|
|
# confusion
|
|
has_timedout = False
|
|
while True:
|
|
# NOTE(danms): Try ten times with a short timeout, and then punt
|
|
# to the configured RPC timeout after that
|
|
if attempt == early_attempts:
|
|
timeout = None
|
|
attempt += 1
|
|
|
|
# NOTE(russellb): This is running during service startup. If we
|
|
# allow an exception to be raised, the service will shut down.
|
|
# This may fail the first time around if nova-conductor wasn't
|
|
# running when this service started.
|
|
try:
|
|
self.base_rpcapi.ping(context, '1.21 GigaWatts',
|
|
timeout=timeout)
|
|
if has_timedout:
|
|
LOG.info(_LI('nova-conductor connection '
|
|
'established successfully'))
|
|
break
|
|
except messaging.MessagingTimeout:
|
|
has_timedout = True
|
|
LOG.warning(_LW('Timed out waiting for nova-conductor. '
|
|
'Is it running? Or did this service start '
|
|
'before nova-conductor? '
|
|
'Reattempting establishment of '
|
|
'nova-conductor connection...'))
|
|
|
|
def instance_update(self, context, instance_uuid, **updates):
|
|
"""Perform an instance update in the database."""
|
|
return self._manager.instance_update(context, instance_uuid,
|
|
updates, 'conductor')
|
|
|
|
|
|
class ComputeTaskAPI(object):
|
|
"""ComputeTask API that queues up compute tasks for nova-conductor."""
|
|
|
|
def __init__(self):
|
|
self.conductor_compute_rpcapi = rpcapi.ComputeTaskAPI()
|
|
|
|
def resize_instance(self, context, instance, extra_instance_updates,
|
|
scheduler_hint, flavor, reservations,
|
|
clean_shutdown=True):
|
|
# NOTE(comstud): 'extra_instance_updates' is not used here but is
|
|
# needed for compatibility with the cells_rpcapi version of this
|
|
# method.
|
|
self.conductor_compute_rpcapi.migrate_server(
|
|
context, instance, scheduler_hint, live=False, rebuild=False,
|
|
flavor=flavor, block_migration=None, disk_over_commit=None,
|
|
reservations=reservations, clean_shutdown=clean_shutdown)
|
|
|
|
def live_migrate_instance(self, context, instance, host_name,
|
|
block_migration, disk_over_commit):
|
|
scheduler_hint = {'host': host_name}
|
|
self.conductor_compute_rpcapi.migrate_server(
|
|
context, instance, scheduler_hint, True, False, None,
|
|
block_migration, disk_over_commit, None)
|
|
|
|
def build_instances(self, context, instances, image, filter_properties,
|
|
admin_password, injected_files, requested_networks,
|
|
security_groups, block_device_mapping, legacy_bdm=True):
|
|
self.conductor_compute_rpcapi.build_instances(context,
|
|
instances=instances, image=image,
|
|
filter_properties=filter_properties,
|
|
admin_password=admin_password, injected_files=injected_files,
|
|
requested_networks=requested_networks,
|
|
security_groups=security_groups,
|
|
block_device_mapping=block_device_mapping,
|
|
legacy_bdm=legacy_bdm)
|
|
|
|
def unshelve_instance(self, context, instance):
|
|
self.conductor_compute_rpcapi.unshelve_instance(context,
|
|
instance=instance)
|
|
|
|
def rebuild_instance(self, context, instance, orig_image_ref, image_ref,
|
|
injected_files, new_pass, orig_sys_metadata,
|
|
bdms, recreate=False, on_shared_storage=False,
|
|
preserve_ephemeral=False, host=None, kwargs=None):
|
|
# kwargs unused but required for cell compatibility
|
|
self.conductor_compute_rpcapi.rebuild_instance(context,
|
|
instance=instance,
|
|
new_pass=new_pass,
|
|
injected_files=injected_files,
|
|
image_ref=image_ref,
|
|
orig_image_ref=orig_image_ref,
|
|
orig_sys_metadata=orig_sys_metadata,
|
|
bdms=bdms,
|
|
recreate=recreate,
|
|
on_shared_storage=on_shared_storage,
|
|
preserve_ephemeral=preserve_ephemeral,
|
|
host=host)
|