def remove_volume_type_access(context, volume_type_id, project_id):
"""Remove access to volume type for project_id."""
if volume_type_id is None:
msg = _("volume_type_id cannot be None")
raise exception.InvalidVolumeType(reason=msg)
elevated = context if context.is_admin else context.elevated()
if is_public_volume_type(elevated, volume_type_id):
msg = _("Type access modification is not applicable to public volume "
"type.")
raise exception.InvalidVolumeType(reason=msg)
return db.volume_type_access_remove(elevated, volume_type_id, project_id)
def associate_qos_with_type(context, specs_id, type_id):
"""Associate qos_specs with volume type.
Associate target qos specs with specific volume type. Would raise
following exceptions:
VolumeTypeNotFound - if volume type doesn't exist;
QoSSpecsNotFound - if qos specs doesn't exist;
InvalidVolumeType - if volume type is already associated with
qos specs other than given one.
QoSSpecsAssociateFailed - if there was general DB error
:param specs_id: qos specs ID to associate with
:param type_id: volume type ID to associate with
"""
try:
get_qos_specs(context, specs_id)
res = volume_types.get_volume_type_qos_specs(type_id)
if res.get('qos_specs', None):
if res['qos_specs'].get('id') != specs_id:
msg = (_("Type %(type_id)s is already associated with another "
"qos specs: %(qos_specs_id)s") % {
'type_id': type_id,
'qos_specs_id': res['qos_specs']['id']
})
raise exception.InvalidVolumeType(reason=msg)
else:
db.qos_specs_associate(context, specs_id, type_id)
except db_exc.DBError:
LOG.exception(_LE('DB error:'))
LOG.warning(
_LW('Failed to associate qos specs '
'%(id)s with type: %(vol_type_id)s'),
dict(id=specs_id, vol_type_id=type_id))
raise exception.QoSSpecsAssociateFailed(specs_id=specs_id,
type_id=type_id)
def get_volume_type_by_name(context, name):
"""Retrieves single volume type by name."""
if name is None:
msg = _("name cannot be None")
raise exception.InvalidVolumeType(reason=msg)
return db.volume_type_get_by_name(context, name)
def destroy(context, id):
"""Marks volume types as deleted."""
if id is None:
msg = _("id cannot be None")
raise exception.InvalidVolumeType(reason=msg)
else:
elevated = context if context.is_admin else context.elevated()
db.volume_type_destroy(elevated, id)
def get_volume_type(ctxt, id, expected_fields=None):
"""Retrieves single volume type by id."""
if id is None:
msg = _("id cannot be None")
raise exception.InvalidVolumeType(reason=msg)
if ctxt is None:
ctxt = context.get_admin_context()
return db.volume_type_get(ctxt, id, expected_fields=expected_fields)
def update(context, id, name, description, is_public=None):
"""Update volume type by id."""
if id is None:
msg = _("id cannot be None")
raise exception.InvalidVolumeType(reason=msg)
elevated = context if context.is_admin else context.elevated()
old_volume_type = get_volume_type(elevated, id)
try:
type_updated = db.volume_type_update(
elevated, id,
dict(name=name, description=description, is_public=is_public))
# Rename resource in quota if volume type name is changed.
if name:
old_type_name = old_volume_type.get('name')
if old_type_name != name:
QUOTAS.update_quota_resource(elevated, old_type_name, name)
except db_exc.DBError:
LOG.exception(_LE('DB error:'))
raise exception.VolumeTypeUpdateFailed(id=id)
return type_updated
def _get_weighted_candidates(self,
context,
request_spec,
filter_properties=None):
"""Return a list of hosts that meet required specs.
Returned list is ordered by their fitness.
"""
elevated = context.elevated()
volume_properties = request_spec['volume_properties']
# Since Cinder is using mixed filters from Oslo and it's own, which
# takes 'resource_XX' and 'volume_XX' as input respectively, copying
# 'volume_XX' to 'resource_XX' will make both filters happy.
resource_properties = volume_properties.copy()
volume_type = request_spec.get("volume_type", None)
resource_type = request_spec.get("volume_type", None)
request_spec.update({'resource_properties': resource_properties})
config_options = self._get_configuration_options()
if filter_properties is None:
filter_properties = {}
self._populate_retry(filter_properties, resource_properties)
if resource_type is None:
msg = _("volume_type cannot be None")
raise exception.InvalidVolumeType(reason=msg)
filter_properties.update({
'context': context,
'request_spec': request_spec,
'config_options': config_options,
'volume_type': volume_type,
'resource_type': resource_type
})
self.populate_filter_properties(request_spec, filter_properties)
# If multiattach is enabled on a volume, we need to add
# multiattach to extra specs, so that the capability
# filtering is enabled.
multiattach = volume_properties.get('multiattach', False)
if multiattach and 'multiattach' not in resource_type.get(
'extra_specs', {}):
if 'extra_specs' not in resource_type:
resource_type['extra_specs'] = {}
resource_type['extra_specs'].update(multiattach='<is> True')
# Find our local list of acceptable hosts by filtering and
# weighing our options. we virtually consume resources on
# it so subsequent selections can adjust accordingly.
# Note: remember, we are using an iterator here. So only
# traverse this list once.
hosts = self.host_manager.get_all_host_states(elevated)
# Filter local hosts based on requirements ...
hosts = self.host_manager.get_filtered_hosts(hosts, filter_properties)
if not hosts:
return []
LOG.debug("Filtered %s", hosts)
# weighted_host = WeightedHost() ... the best
# host for the job.
weighed_hosts = self.host_manager.get_weighed_hosts(
hosts, filter_properties)
return weighed_hosts