def object_action(self, context, objinst, objmethod, args, kwargs):
"""Perform an action on an object."""
LOG.info(
trace_event.event('conductor.object_action.start', None, context,
""))
oldobj = objinst.obj_clone()
result = self._object_dispatch(objinst, objmethod, args, kwargs)
updates = dict()
# NOTE(danms): Diff the object with the one passed to us and
# generate a list of changes to forward back
for name, field in objinst.fields.items():
if not objinst.obj_attr_is_set(name):
# Avoid demand-loading anything
continue
if (not oldobj.obj_attr_is_set(name)
or getattr(oldobj, name) != getattr(objinst, name)):
updates[name] = field.to_primitive(objinst, name,
getattr(objinst, name))
# This is safe since a field named this would conflict with the
# method anyway
updates['obj_what_changed'] = objinst.obj_what_changed()
LOG.info(
trace_event.event('conductor.object_action.end', None, context,
""))
return updates, result
def provider_fw_rule_get_all(self, context):
#msg="{'event_type':'conductor.provider_fw_rule.start','request_id':'"+str(context.request_id)+"','vmname':''}"
#LOG.info("lttng_trace:"+msg)
LOG.info(trace_event.event('conductor.provider_fw_rule.start',None,context,""))
rules = self.db.provider_fw_rule_get_all(context)
#msg="{'event_type':'conductor.provider_fw_rule.end','request_id':'"+str(context.request_id)+"','vmname':''}"
#LOG.info("lttng_trace:"+msg)
LOG.info(trace_event.event('conductor.provider_fw_rule.end',None,context,""))
return jsonutils.to_primitive(rules)
def select_destinations(self, context, request_spec, filter_properties):
"""Returns destinations(s) best suited for this request_spec and
filter_properties.
The result should be a list of dicts with 'host', 'nodename' and
'limits' as keys.
"""
LOG.info(trace_event.event('scheduler.select_destinations.start',None,context,''))
dests = self.driver.select_destinations(context, request_spec,
filter_properties)
LOG.info(trace_event.event('scheduler.select_destinations.end',None,context,''))
return jsonutils.to_primitive(dests)
def provider_fw_rule_get_all(self, context):
#msg="{'event_type':'conductor.provider_fw_rule.start','request_id':'"+str(context.request_id)+"','vmname':''}"
#LOG.info("lttng_trace:"+msg)
LOG.info(
trace_event.event('conductor.provider_fw_rule.start', None,
context, ""))
rules = self.db.provider_fw_rule_get_all(context)
#msg="{'event_type':'conductor.provider_fw_rule.end','request_id':'"+str(context.request_id)+"','vmname':''}"
#LOG.info("lttng_trace:"+msg)
LOG.info(
trace_event.event('conductor.provider_fw_rule.end', None, context,
""))
return jsonutils.to_primitive(rules)
def select_destinations(self, context, request_spec, filter_properties):
"""Returns destinations(s) best suited for this request_spec and
filter_properties.
The result should be a list of dicts with 'host', 'nodename' and
'limits' as keys.
"""
LOG.info(
trace_event.event('scheduler.select_destinations.start', None,
context, ''))
dests = self.driver.select_destinations(context, request_spec,
filter_properties)
LOG.info(
trace_event.event('scheduler.select_destinations.end', None,
context, ''))
return jsonutils.to_primitive(dests)
def object_action(self, context, objinst, objmethod, args, kwargs):
"""Perform an action on an object."""
LOG.info(trace_event.event('conductor.object_action.start',None,context,""))
oldobj = objinst.obj_clone()
result = self._object_dispatch(objinst, objmethod, args, kwargs)
updates = dict()
# NOTE(danms): Diff the object with the one passed to us and
# generate a list of changes to forward back
for name, field in objinst.fields.items():
if not objinst.obj_attr_is_set(name):
# Avoid demand-loading anything
continue
if (not oldobj.obj_attr_is_set(name) or
getattr(oldobj, name) != getattr(objinst, name)):
updates[name] = field.to_primitive(objinst, name,
getattr(objinst, name))
# This is safe since a field named this would conflict with the
# method anyway
updates['obj_what_changed'] = objinst.obj_what_changed()
LOG.info(trace_event.event('conductor.object_action.end',None,context,""))
return updates, result
def rebuild_instance(self,
context,
instance,
orig_image_ref,
image_ref,
injected_files,
new_pass,
orig_sys_metadata,
bdms,
recreate,
on_shared_storage,
preserve_ephemeral=False,
host=None):
LOG.info(
trace_event.event('conductor.rebuild_instance.start', instance,
context, ""))
with compute_utils.EventReporter(context, 'rebuild_server',
instance.uuid):
node = limits = None
if not host:
# NOTE(lcostantino): Retrieve scheduler filters for the
# instance when the feature is available
filter_properties = {'ignore_hosts': [instance.host]}
request_spec = scheduler_utils.build_request_spec(
context, image_ref, [instance])
try:
scheduler_utils.setup_instance_group(
context, request_spec, filter_properties)
hosts = self.scheduler_client.select_destinations(
context, request_spec, filter_properties)
host_dict = hosts.pop(0)
host, node, limits = (host_dict['host'],
host_dict['nodename'],
host_dict['limits'])
except exception.NoValidHost as ex:
with excutils.save_and_reraise_exception():
self._set_vm_state_and_notify(
context, instance.uuid, 'rebuild_server', {
'vm_state': instance.vm_state,
'task_state': None
}, ex, request_spec)
LOG.warning(_LW("No valid host found for rebuild"),
instance=instance)
except exception.UnsupportedPolicyException as ex:
with excutils.save_and_reraise_exception():
self._set_vm_state_and_notify(
context, instance.uuid, 'rebuild_server', {
'vm_state': instance.vm_state,
'task_state': None
}, ex, request_spec)
LOG.warning(_LW("Server with unsupported policy "
"cannot be rebuilt"),
instance=instance)
try:
migration = objects.Migration.get_by_instance_and_status(
context, instance.uuid, 'accepted')
except exception.MigrationNotFoundByStatus:
LOG.debug(
"No migration record for the rebuild/evacuate "
"request.",
instance=instance)
migration = None
compute_utils.notify_about_instance_usage(self.notifier, context,
instance,
"rebuild.scheduled")
self.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,
migration=migration,
host=host,
node=node,
limits=limits)
LOG.info(
trace_event.event('conductor.rebuild_instance.end', instance,
context, ""))
def build_instances(self,
context,
instances,
image,
filter_properties,
admin_password,
injected_files,
requested_networks,
security_groups,
block_device_mapping=None,
legacy_bdm=True):
# TODO(ndipanov): Remove block_device_mapping and legacy_bdm in version
# 2.0 of the RPC API.
#msg="{'event_type':'conductor.build_instance.start','request_id':'"+str(context.request_id)+"','vmname':''}"
# LOG.info("lttng_trace:"+msg)
LOG.info(
trace_event.event('conductor.build_instances.start', None, context,
""))
request_spec = scheduler_utils.build_request_spec(
context, image, instances)
# TODO(danms): Remove this in version 2.0 of the RPC API
if (requested_networks and not isinstance(requested_networks,
objects.NetworkRequestList)):
requested_networks = objects.NetworkRequestList(objects=[
objects.NetworkRequest.from_tuple(t)
for t in requested_networks
])
# TODO(melwitt): Remove this in version 2.0 of the RPC API
flavor = filter_properties.get('instance_type')
if flavor and not isinstance(flavor, objects.Flavor):
# Code downstream may expect extra_specs to be populated since it
# is receiving an object, so lookup the flavor to ensure this.
flavor = objects.Flavor.get_by_id(context, flavor['id'])
filter_properties = dict(filter_properties, instance_type=flavor)
try:
scheduler_utils.setup_instance_group(context, request_spec,
filter_properties)
# check retry policy. Rather ugly use of instances[0]...
# but if we've exceeded max retries... then we really only
# have a single instance.
scheduler_utils.populate_retry(filter_properties,
instances[0].uuid)
hosts = self.scheduler_client.select_destinations(
context, request_spec, filter_properties)
except Exception as exc:
updates = {'vm_state': vm_states.ERROR, 'task_state': None}
for instance in instances:
self._set_vm_state_and_notify(context, instance.uuid,
'build_instances', updates, exc,
request_spec)
return
for (instance, host) in itertools.izip(instances, hosts):
try:
instance.refresh()
except (exception.InstanceNotFound,
exception.InstanceInfoCacheNotFound):
LOG.debug('Instance deleted during build', instance=instance)
continue
local_filter_props = copy.deepcopy(filter_properties)
scheduler_utils.populate_filter_properties(local_filter_props,
host)
# The block_device_mapping passed from the api doesn't contain
# instance specific information
bdms = objects.BlockDeviceMappingList.get_by_instance_uuid(
context, instance.uuid)
self.compute_rpcapi.build_and_run_instance(
context,
instance=instance,
host=host['host'],
image=image,
request_spec=request_spec,
filter_properties=local_filter_props,
admin_password=admin_password,
injected_files=injected_files,
requested_networks=requested_networks,
security_groups=security_groups,
block_device_mapping=bdms,
node=host['nodename'],
limits=host['limits'])
LOG.info(
trace_event.event('conductor.build_instances.end', None,
context, ""))
def rebuild_instance(self, context, instance, orig_image_ref, image_ref,
injected_files, new_pass, orig_sys_metadata,
bdms, recreate, on_shared_storage,
preserve_ephemeral=False, host=None):
LOG.info(trace_event.event('conductor.rebuild_instance.start',instance,context,""))
with compute_utils.EventReporter(context, 'rebuild_server',
instance.uuid):
node = limits = None
if not host:
# NOTE(lcostantino): Retrieve scheduler filters for the
# instance when the feature is available
filter_properties = {'ignore_hosts': [instance.host]}
request_spec = scheduler_utils.build_request_spec(context,
image_ref,
[instance])
try:
scheduler_utils.setup_instance_group(context, request_spec,
filter_properties)
hosts = self.scheduler_client.select_destinations(context,
request_spec,
filter_properties)
host_dict = hosts.pop(0)
host, node, limits = (host_dict['host'],
host_dict['nodename'],
host_dict['limits'])
except exception.NoValidHost as ex:
with excutils.save_and_reraise_exception():
self._set_vm_state_and_notify(context, instance.uuid,
'rebuild_server',
{'vm_state': instance.vm_state,
'task_state': None}, ex, request_spec)
LOG.warning(_LW("No valid host found for rebuild"),
instance=instance)
except exception.UnsupportedPolicyException as ex:
with excutils.save_and_reraise_exception():
self._set_vm_state_and_notify(context, instance.uuid,
'rebuild_server',
{'vm_state': instance.vm_state,
'task_state': None}, ex, request_spec)
LOG.warning(_LW("Server with unsupported policy "
"cannot be rebuilt"),
instance=instance)
try:
migration = objects.Migration.get_by_instance_and_status(
context, instance.uuid, 'accepted')
except exception.MigrationNotFoundByStatus:
LOG.debug("No migration record for the rebuild/evacuate "
"request.", instance=instance)
migration = None
compute_utils.notify_about_instance_usage(
self.notifier, context, instance, "rebuild.scheduled")
self.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,
migration=migration,
host=host, node=node, limits=limits)
LOG.info(trace_event.event('conductor.rebuild_instance.end',instance,context,""))
def build_instances(self, context, instances, image, filter_properties,
admin_password, injected_files, requested_networks,
security_groups, block_device_mapping=None, legacy_bdm=True):
# TODO(ndipanov): Remove block_device_mapping and legacy_bdm in version
# 2.0 of the RPC API.
#msg="{'event_type':'conductor.build_instance.start','request_id':'"+str(context.request_id)+"','vmname':''}"
# LOG.info("lttng_trace:"+msg)
LOG.info(trace_event.event('conductor.build_instances.start',None,context,""))
request_spec = scheduler_utils.build_request_spec(context, image,
instances)
# TODO(danms): Remove this in version 2.0 of the RPC API
if (requested_networks and
not isinstance(requested_networks,
objects.NetworkRequestList)):
requested_networks = objects.NetworkRequestList(
objects=[objects.NetworkRequest.from_tuple(t)
for t in requested_networks])
# TODO(melwitt): Remove this in version 2.0 of the RPC API
flavor = filter_properties.get('instance_type')
if flavor and not isinstance(flavor, objects.Flavor):
# Code downstream may expect extra_specs to be populated since it
# is receiving an object, so lookup the flavor to ensure this.
flavor = objects.Flavor.get_by_id(context, flavor['id'])
filter_properties = dict(filter_properties, instance_type=flavor)
try:
scheduler_utils.setup_instance_group(context, request_spec,
filter_properties)
# check retry policy. Rather ugly use of instances[0]...
# but if we've exceeded max retries... then we really only
# have a single instance.
scheduler_utils.populate_retry(filter_properties,
instances[0].uuid)
hosts = self.scheduler_client.select_destinations(context,
request_spec, filter_properties)
except Exception as exc:
updates = {'vm_state': vm_states.ERROR, 'task_state': None}
for instance in instances:
self._set_vm_state_and_notify(
context, instance.uuid, 'build_instances', updates,
exc, request_spec)
return
for (instance, host) in itertools.izip(instances, hosts):
try:
instance.refresh()
except (exception.InstanceNotFound,
exception.InstanceInfoCacheNotFound):
LOG.debug('Instance deleted during build', instance=instance)
continue
local_filter_props = copy.deepcopy(filter_properties)
scheduler_utils.populate_filter_properties(local_filter_props,
host)
# The block_device_mapping passed from the api doesn't contain
# instance specific information
bdms = objects.BlockDeviceMappingList.get_by_instance_uuid(
context, instance.uuid)
self.compute_rpcapi.build_and_run_instance(context,
instance=instance, host=host['host'], image=image,
request_spec=request_spec,
filter_properties=local_filter_props,
admin_password=admin_password,
injected_files=injected_files,
requested_networks=requested_networks,
security_groups=security_groups,
block_device_mapping=bdms, node=host['nodename'],
limits=host['limits'])
LOG.info(trace_event.event('conductor.build_instances.end',None,context,""))