18f23a7177
Modifies how the APIs for Conductor, Guest, and Taskmanager handle versioning for olso_messaging. Closes-Bug: 1631106 Change-Id: I2b9d50e15ac98041c427b74cac63ac231cb4b53e Co-Authored-By: Amrith Kumar <amrith@tesora.com>
257 lines
9.5 KiB
Python
257 lines
9.5 KiB
Python
# Copyright 2012 OpenStack Foundation
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""
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Routes all the requests to the task manager.
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"""
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from oslo_log import log as logging
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import oslo_messaging as messaging
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from trove.common import cfg
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from trove.common import exception
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from trove.common.notification import NotificationCastWrapper
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from trove.common.strategies.cluster import strategy
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from trove.guestagent import models as agent_models
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from trove import rpc
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CONF = cfg.CONF
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LOG = logging.getLogger(__name__)
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class API(object):
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"""API for interacting with the task manager.
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API version history:
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* 1.0 - Initial version.
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When updating this API, also update API_LATEST_VERSION
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"""
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# API_LATEST_VERSION should bump the minor number each time
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# a method signature is added or changed
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API_LATEST_VERSION = '1.0'
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# API_BASE_VERSION should only change on major version upgrade
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API_BASE_VERSION = '1.0'
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VERSION_ALIASES = {
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'icehouse': '1.0',
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'juno': '1.0',
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'kilo': '1.0',
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'liberty': '1.0',
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'mitaka': '1.0',
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'newton': '1.0',
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'latest': API_LATEST_VERSION
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}
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def __init__(self, context):
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self.context = context
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super(API, self).__init__()
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version_cap = self.VERSION_ALIASES.get(
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CONF.upgrade_levels.taskmanager, CONF.upgrade_levels.taskmanager)
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target = messaging.Target(topic=CONF.taskmanager_queue,
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version=version_cap)
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self.client = self.get_client(target, version_cap)
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def _cast(self, method_name, version, **kwargs):
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LOG.debug("Casting %s" % method_name)
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with NotificationCastWrapper(self.context, 'taskmanager'):
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cctxt = self.client.prepare(version=version)
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cctxt.cast(self.context, method_name, **kwargs)
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def get_client(self, target, version_cap, serializer=None):
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return rpc.get_client(target,
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version_cap=version_cap,
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serializer=serializer)
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def _transform_obj(self, obj_ref):
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# Turn the object into a dictionary and remove the mgr
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if "__dict__" in dir(obj_ref):
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obj_dict = obj_ref.__dict__
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# We assume manager contains a object due to the *clients
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if obj_dict.get('manager'):
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del obj_dict['manager']
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return obj_dict
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raise ValueError("Could not transform %s" % obj_ref)
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def _delete_heartbeat(self, instance_id):
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agent_heart_beat = agent_models.AgentHeartBeat()
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try:
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heartbeat = agent_heart_beat.find_by_instance_id(instance_id)
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heartbeat.delete()
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except exception.ModelNotFoundError as e:
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LOG.error(e.message)
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def resize_volume(self, new_size, instance_id):
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LOG.debug("Making async call to resize volume for instance: %s"
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% instance_id)
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version = self.API_BASE_VERSION
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self._cast("resize_volume", version=version,
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new_size=new_size,
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instance_id=instance_id)
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def resize_flavor(self, instance_id, old_flavor, new_flavor):
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LOG.debug("Making async call to resize flavor for instance: %s" %
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instance_id)
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version = self.API_BASE_VERSION
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self._cast("resize_flavor", version=version,
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instance_id=instance_id,
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old_flavor=self._transform_obj(old_flavor),
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new_flavor=self._transform_obj(new_flavor))
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def reboot(self, instance_id):
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LOG.debug("Making async call to reboot instance: %s" % instance_id)
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version = self.API_BASE_VERSION
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self._cast("reboot", version=version, instance_id=instance_id)
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def restart(self, instance_id):
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LOG.debug("Making async call to restart instance: %s" % instance_id)
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version = self.API_BASE_VERSION
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self._cast("restart", version=version, instance_id=instance_id)
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def detach_replica(self, instance_id):
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LOG.debug("Making async call to detach replica: %s" % instance_id)
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version = self.API_BASE_VERSION
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self._cast("detach_replica", version=version,
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instance_id=instance_id)
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def promote_to_replica_source(self, instance_id):
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LOG.debug("Making async call to promote replica to source: %s" %
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instance_id)
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version = self.API_BASE_VERSION
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self._cast("promote_to_replica_source", version=version,
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instance_id=instance_id)
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def eject_replica_source(self, instance_id):
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LOG.debug("Making async call to eject replica source: %s" %
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instance_id)
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version = self.API_BASE_VERSION
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self._cast("eject_replica_source", version=version,
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instance_id=instance_id)
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def migrate(self, instance_id, host):
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LOG.debug("Making async call to migrate instance: %s" % instance_id)
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version = self.API_BASE_VERSION
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self._cast("migrate", version=version,
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instance_id=instance_id, host=host)
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def delete_instance(self, instance_id):
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LOG.debug("Making async call to delete instance: %s" % instance_id)
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version = self.API_BASE_VERSION
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self._cast("delete_instance", version=version,
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instance_id=instance_id)
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def create_backup(self, backup_info, instance_id):
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LOG.debug("Making async call to create a backup for instance: %s" %
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instance_id)
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version = self.API_BASE_VERSION
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self._cast("create_backup", version=version,
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backup_info=backup_info,
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instance_id=instance_id)
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def delete_backup(self, backup_id):
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LOG.debug("Making async call to delete backup: %s" % backup_id)
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version = self.API_BASE_VERSION
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self._cast("delete_backup", version=version, backup_id=backup_id)
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def create_instance(self, instance_id, name, flavor,
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image_id, databases, users, datastore_manager,
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packages, volume_size, backup_id=None,
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availability_zone=None, root_password=None,
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nics=None, overrides=None, slave_of_id=None,
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cluster_config=None, volume_type=None,
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modules=None, locality=None):
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LOG.debug("Making async call to create instance %s " % instance_id)
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version = self.API_BASE_VERSION
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self._cast("create_instance", version=version,
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instance_id=instance_id, name=name,
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flavor=self._transform_obj(flavor),
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image_id=image_id,
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databases=databases,
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users=users,
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datastore_manager=datastore_manager,
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packages=packages,
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volume_size=volume_size,
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backup_id=backup_id,
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availability_zone=availability_zone,
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root_password=root_password,
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nics=nics,
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overrides=overrides,
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slave_of_id=slave_of_id,
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cluster_config=cluster_config,
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volume_type=volume_type,
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modules=modules, locality=locality)
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def create_cluster(self, cluster_id):
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LOG.debug("Making async call to create cluster %s " % cluster_id)
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version = self.API_BASE_VERSION
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self._cast("create_cluster", version=version, cluster_id=cluster_id)
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def grow_cluster(self, cluster_id, new_instance_ids):
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LOG.debug("Making async call to grow cluster %s " % cluster_id)
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version = self.API_BASE_VERSION
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cctxt = self.client.prepare(version=version)
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cctxt.cast(self.context, "grow_cluster",
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cluster_id=cluster_id, new_instance_ids=new_instance_ids)
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def shrink_cluster(self, cluster_id, instance_ids):
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LOG.debug("Making async call to shrink cluster %s " % cluster_id)
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version = self.API_BASE_VERSION
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cctxt = self.client.prepare(version=version)
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cctxt.cast(self.context, "shrink_cluster",
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cluster_id=cluster_id, instance_ids=instance_ids)
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def delete_cluster(self, cluster_id):
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LOG.debug("Making async call to delete cluster %s " % cluster_id)
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version = self.API_BASE_VERSION
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self._cast("delete_cluster", version=version, cluster_id=cluster_id)
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def upgrade(self, instance_id, datastore_version_id):
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LOG.debug("Making async call to upgrade guest to datastore "
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"version %s " % datastore_version_id)
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version = self.API_BASE_VERSION
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cctxt = self.client.prepare(version=version)
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cctxt.cast(self.context, "upgrade", instance_id=instance_id,
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datastore_version_id=datastore_version_id)
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def load(context, manager=None):
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if manager:
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task_manager_api_class = (strategy.load_taskmanager_strategy(manager)
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.task_manager_api_class)
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else:
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task_manager_api_class = API
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return task_manager_api_class(context)
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