32a19fd56c
return a cached host state map, which gets updated on each scheduling Change-Id: Ia258164a43fc15f83dfadfc1133ab4faa972e41c Closes-Bug: #1804659
143 lines
5.8 KiB
Python
143 lines
5.8 KiB
Python
# Copyright 2012, Red Hat, Inc.
|
|
#
|
|
# 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.
|
|
|
|
"""
|
|
Client side of the scheduler manager RPC API.
|
|
"""
|
|
|
|
from oslo_config import cfg
|
|
import oslo_messaging as messaging
|
|
from oslo_serialization import jsonutils
|
|
|
|
from manila import rpc
|
|
|
|
CONF = cfg.CONF
|
|
|
|
|
|
class SchedulerAPI(object):
|
|
"""Client side of the scheduler rpc API.
|
|
|
|
API version history:
|
|
|
|
1.0 - Initial version.
|
|
1.1 - Add get_pools method
|
|
1.2 - Introduce Share Instances. Replace ``create_share()`` with
|
|
``create_share_instance()``
|
|
1.3 - Add create_consistency_group method (renamed in 1.7)
|
|
1.4 - Add migrate_share_to_host method
|
|
1.5 - Add create_share_replica
|
|
1.6 - Add manage_share
|
|
1.7 - Updated migrate_share_to_host method with new parameters
|
|
1.8 - Rename create_consistency_group -> create_share_group method
|
|
1.9 - Add cached parameter to get_pools method
|
|
"""
|
|
|
|
RPC_API_VERSION = '1.9'
|
|
|
|
def __init__(self):
|
|
super(SchedulerAPI, self).__init__()
|
|
target = messaging.Target(topic=CONF.scheduler_topic,
|
|
version=self.RPC_API_VERSION)
|
|
self.client = rpc.get_client(target, version_cap=self.RPC_API_VERSION)
|
|
|
|
def create_share_instance(self, context, request_spec=None,
|
|
filter_properties=None):
|
|
request_spec_p = jsonutils.to_primitive(request_spec)
|
|
call_context = self.client.prepare(version='1.2')
|
|
return call_context.cast(context,
|
|
'create_share_instance',
|
|
request_spec=request_spec_p,
|
|
filter_properties=filter_properties)
|
|
|
|
def update_service_capabilities(self, context,
|
|
service_name, host,
|
|
capabilities):
|
|
call_context = self.client.prepare(fanout=True, version='1.0')
|
|
call_context.cast(context,
|
|
'update_service_capabilities',
|
|
service_name=service_name,
|
|
host=host,
|
|
capabilities=capabilities)
|
|
|
|
def get_pools(self, context, filters=None, cached=False):
|
|
call_context = self.client.prepare(version='1.9')
|
|
return call_context.call(context, 'get_pools', filters=filters,
|
|
cached=cached)
|
|
|
|
def create_share_group(self, context, share_group_id, request_spec=None,
|
|
filter_properties=None):
|
|
"""Casts an rpc to the scheduler to create a share group.
|
|
|
|
Example of 'request_spec' argument value::
|
|
|
|
{
|
|
|
|
'share_group_type_id': 'fake_share_group_type_id',
|
|
'share_group_id': 'some_fake_uuid',
|
|
'availability_zone_id': 'some_fake_az_uuid',
|
|
'share_types': [models.ShareType],
|
|
'resource_type': models.ShareGroup,
|
|
|
|
}
|
|
|
|
"""
|
|
request_spec_p = jsonutils.to_primitive(request_spec)
|
|
call_context = self.client.prepare(version='1.8')
|
|
return call_context.cast(context,
|
|
'create_share_group',
|
|
share_group_id=share_group_id,
|
|
request_spec=request_spec_p,
|
|
filter_properties=filter_properties)
|
|
|
|
def migrate_share_to_host(
|
|
self, context, share_id, host, force_host_assisted_migration,
|
|
preserve_metadata, writable, nondisruptive, preserve_snapshots,
|
|
new_share_network_id, new_share_type_id, request_spec=None,
|
|
filter_properties=None):
|
|
|
|
call_context = self.client.prepare(version='1.7')
|
|
request_spec_p = jsonutils.to_primitive(request_spec)
|
|
return call_context.cast(
|
|
context, 'migrate_share_to_host',
|
|
share_id=share_id,
|
|
host=host,
|
|
force_host_assisted_migration=force_host_assisted_migration,
|
|
preserve_metadata=preserve_metadata,
|
|
writable=writable,
|
|
nondisruptive=nondisruptive,
|
|
preserve_snapshots=preserve_snapshots,
|
|
new_share_network_id=new_share_network_id,
|
|
new_share_type_id=new_share_type_id,
|
|
request_spec=request_spec_p,
|
|
filter_properties=filter_properties)
|
|
|
|
def create_share_replica(self, context, request_spec=None,
|
|
filter_properties=None):
|
|
request_spec_p = jsonutils.to_primitive(request_spec)
|
|
call_context = self.client.prepare(version='1.5')
|
|
return call_context.cast(context,
|
|
'create_share_replica',
|
|
request_spec=request_spec_p,
|
|
filter_properties=filter_properties)
|
|
|
|
def manage_share(self, context, share_id, driver_options,
|
|
request_spec=None, filter_properties=None):
|
|
|
|
call_context = self.client.prepare(version='1.6')
|
|
return call_context.cast(context, 'manage_share',
|
|
share_id=share_id,
|
|
driver_options=driver_options,
|
|
request_spec=request_spec,
|
|
filter_properties=filter_properties)
|