436 lines
18 KiB
Python
436 lines
18 KiB
Python
# Copyright 2013 IBM Corp.
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# Copyright 2013 Red Hat, Inc.
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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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"""Client side of the conductor RPC API."""
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import oslo_messaging as messaging
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from oslo_serialization import jsonutils
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from oslo_versionedobjects import base as ovo_base
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import nova.conf
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from nova.objects import base as objects_base
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from nova import profiler
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from nova import rpc
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CONF = nova.conf.CONF
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@profiler.trace_cls("rpc")
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class ConductorAPI(object):
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"""Client side of the conductor RPC API
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API version history:
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* 1.0 - Initial version.
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* 1.1 - Added migration_update
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* 1.2 - Added instance_get_by_uuid and instance_get_all_by_host
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* 1.3 - Added aggregate_host_add and aggregate_host_delete
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* 1.4 - Added migration_get
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* 1.5 - Added bw_usage_update
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* 1.6 - Added get_backdoor_port()
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* 1.7 - Added aggregate_get_by_host, aggregate_metadata_add,
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and aggregate_metadata_delete
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* 1.8 - Added security_group_get_by_instance and
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security_group_rule_get_by_security_group
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* 1.9 - Added provider_fw_rule_get_all
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* 1.10 - Added agent_build_get_by_triple
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* 1.11 - Added aggregate_get
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* 1.12 - Added block_device_mapping_update_or_create
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* 1.13 - Added block_device_mapping_get_all_by_instance
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* 1.14 - Added block_device_mapping_destroy
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* 1.15 - Added instance_get_all_by_filters and
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instance_get_all_hung_in_rebooting and
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instance_get_active_by_window
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Deprecated instance_get_all_by_host
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* 1.16 - Added instance_destroy
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* 1.17 - Added instance_info_cache_delete
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* 1.18 - Added instance_type_get
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* 1.19 - Added vol_get_usage_by_time and vol_usage_update
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* 1.20 - Added migration_get_unconfirmed_by_dest_compute
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* 1.21 - Added service_get_all_by
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* 1.22 - Added ping
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* 1.23 - Added instance_get_all
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Un-Deprecate instance_get_all_by_host
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* 1.24 - Added instance_get
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* 1.25 - Added action_event_start and action_event_finish
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* 1.26 - Added instance_info_cache_update
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* 1.27 - Added service_create
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* 1.28 - Added binary arg to service_get_all_by
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* 1.29 - Added service_destroy
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* 1.30 - Added migration_create
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* 1.31 - Added migration_get_in_progress_by_host_and_node
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* 1.32 - Added optional node to instance_get_all_by_host
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* 1.33 - Added compute_node_create and compute_node_update
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* 1.34 - Added service_update
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* 1.35 - Added instance_get_active_by_window_joined
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* 1.36 - Added instance_fault_create
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* 1.37 - Added task_log_get, task_log_begin_task, task_log_end_task
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* 1.38 - Added service name to instance_update
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* 1.39 - Added notify_usage_exists
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* 1.40 - Added security_groups_trigger_handler and
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security_groups_trigger_members_refresh
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Remove instance_get_active_by_window
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* 1.41 - Added fixed_ip_get_by_instance, network_get,
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instance_floating_address_get_all, quota_commit,
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quota_rollback
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* 1.42 - Added get_ec2_ids, aggregate_metadata_get_by_host
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* 1.43 - Added compute_stop
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* 1.44 - Added compute_node_delete
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* 1.45 - Added project_id to quota_commit and quota_rollback
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* 1.46 - Added compute_confirm_resize
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* 1.47 - Added columns_to_join to instance_get_all_by_host and
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instance_get_all_by_filters
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* 1.48 - Added compute_unrescue
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... Grizzly supports message version 1.48. So, any changes to existing
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methods in 2.x after that point should be done such that they can
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handle the version_cap being set to 1.48.
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* 1.49 - Added columns_to_join to instance_get_by_uuid
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* 1.50 - Added object_action() and object_class_action()
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* 1.51 - Added the 'legacy' argument to
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block_device_mapping_get_all_by_instance
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* 1.52 - Pass instance objects for compute_confirm_resize
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* 1.53 - Added compute_reboot
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* 1.54 - Added 'update_cells' argument to bw_usage_update
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* 1.55 - Pass instance objects for compute_stop
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* 1.56 - Remove compute_confirm_resize and
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migration_get_unconfirmed_by_dest_compute
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* 1.57 - Remove migration_create()
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* 1.58 - Remove migration_get()
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... Havana supports message version 1.58. So, any changes to existing
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methods in 1.x after that point should be done such that they can
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handle the version_cap being set to 1.58.
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* 1.59 - Remove instance_info_cache_update()
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* 1.60 - Remove aggregate_metadata_add() and aggregate_metadata_delete()
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* ... - Remove security_group_get_by_instance() and
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security_group_rule_get_by_security_group()
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* 1.61 - Return deleted instance from instance_destroy()
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* 1.62 - Added object_backport()
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* 1.63 - Changed the format of values['stats'] from a dict to a JSON string
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in compute_node_update()
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* 1.64 - Added use_slave to instance_get_all_filters()
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- Remove instance_type_get()
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- Remove aggregate_get()
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- Remove aggregate_get_by_host()
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- Remove instance_get()
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- Remove migration_update()
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- Remove block_device_mapping_destroy()
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* 2.0 - Drop backwards compatibility
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- Remove quota_rollback() and quota_commit()
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- Remove aggregate_host_add() and aggregate_host_delete()
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- Remove network_migrate_instance_start() and
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network_migrate_instance_finish()
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- Remove vol_get_usage_by_time
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... Icehouse supports message version 2.0. So, any changes to
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existing methods in 2.x after that point should be done such
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that they can handle the version_cap being set to 2.0.
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* Remove instance_destroy()
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* Remove compute_unrescue()
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* Remove instance_get_all_by_filters()
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* Remove instance_get_active_by_window_joined()
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* Remove instance_fault_create()
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* Remove action_event_start() and action_event_finish()
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* Remove instance_get_by_uuid()
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* Remove agent_build_get_by_triple()
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... Juno supports message version 2.0. So, any changes to
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existing methods in 2.x after that point should be done such
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that they can handle the version_cap being set to 2.0.
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* 2.1 - Make notify_usage_exists() take an instance object
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* Remove bw_usage_update()
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* Remove notify_usage_exists()
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... Kilo supports message version 2.1. So, any changes to
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existing methods in 2.x after that point should be done such
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that they can handle the version_cap being set to 2.1.
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* Remove get_ec2_ids()
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* Remove service_get_all_by()
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* Remove service_create()
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* Remove service_destroy()
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* Remove service_update()
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* Remove migration_get_in_progress_by_host_and_node()
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* Remove aggregate_metadata_get_by_host()
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* Remove block_device_mapping_update_or_create()
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* Remove block_device_mapping_get_all_by_instance()
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* Remove instance_get_all_by_host()
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* Remove compute_node_update()
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* Remove compute_node_delete()
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* Remove security_groups_trigger_handler()
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* Remove task_log_get()
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* Remove task_log_begin_task()
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* Remove task_log_end_task()
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* Remove security_groups_trigger_members_refresh()
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* Remove vol_usage_update()
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* Remove instance_update()
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* 2.2 - Add object_backport_versions()
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* 2.3 - Add object_class_action_versions()
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* Remove compute_node_create()
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* Remove object_backport()
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* 3.0 - Drop backwards compatibility
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... Liberty, Mitaka, Newton, and Ocata support message version 3.0. So,
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any changes to existing methods in 3.x after that point should be done such
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that they can handle the version_cap being set to 3.0.
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* Remove provider_fw_rule_get_all()
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"""
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VERSION_ALIASES = {
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'grizzly': '1.48',
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'havana': '1.58',
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'icehouse': '2.0',
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'juno': '2.0',
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'kilo': '2.1',
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'liberty': '3.0',
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'mitaka': '3.0',
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'newton': '3.0',
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'ocata': '3.0',
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}
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def __init__(self):
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super(ConductorAPI, self).__init__()
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target = messaging.Target(topic=CONF.conductor.topic, version='3.0')
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version_cap = self.VERSION_ALIASES.get(CONF.upgrade_levels.conductor,
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CONF.upgrade_levels.conductor)
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serializer = objects_base.NovaObjectSerializer()
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self.client = rpc.get_client(target,
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version_cap=version_cap,
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serializer=serializer)
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# TODO(hanlind): This method can be removed once oslo.versionedobjects
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# has been converted to use version_manifests in remotable_classmethod
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# operations, which will use the new class action handler.
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def object_class_action(self, context, objname, objmethod, objver,
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args, kwargs):
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versions = ovo_base.obj_tree_get_versions(objname)
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return self.object_class_action_versions(context,
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objname,
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objmethod,
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versions,
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args, kwargs)
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def object_class_action_versions(self, context, objname, objmethod,
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object_versions, args, kwargs):
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cctxt = self.client.prepare()
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return cctxt.call(context, 'object_class_action_versions',
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objname=objname, objmethod=objmethod,
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object_versions=object_versions,
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args=args, kwargs=kwargs)
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def object_action(self, context, objinst, objmethod, args, kwargs):
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cctxt = self.client.prepare()
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return cctxt.call(context, 'object_action', objinst=objinst,
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objmethod=objmethod, args=args, kwargs=kwargs)
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def object_backport_versions(self, context, objinst, object_versions):
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cctxt = self.client.prepare()
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return cctxt.call(context, 'object_backport_versions', objinst=objinst,
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object_versions=object_versions)
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@profiler.trace_cls("rpc")
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class ComputeTaskAPI(object):
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"""Client side of the conductor 'compute' namespaced RPC API
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API version history:
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1.0 - Initial version (empty).
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1.1 - Added unified migrate_server call.
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1.2 - Added build_instances
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1.3 - Added unshelve_instance
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1.4 - Added reservations to migrate_server.
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1.5 - Added the legacy_bdm parameter to build_instances
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1.6 - Made migrate_server use instance objects
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1.7 - Do not send block_device_mapping and legacy_bdm to build_instances
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1.8 - Add rebuild_instance
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1.9 - Converted requested_networks to NetworkRequestList object
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1.10 - Made migrate_server() and build_instances() send flavor objects
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1.11 - Added clean_shutdown to migrate_server()
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1.12 - Added request_spec to rebuild_instance()
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1.13 - Added request_spec to migrate_server()
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1.14 - Added request_spec to unshelve_instance()
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1.15 - Added live_migrate_instance
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1.16 - Added schedule_and_build_instances
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1.17 - Added tags to schedule_and_build_instances()
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1.18 - Added request_spec to build_instances().
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1.19 - build_instances() now gets a 'host_lists' parameter that represents
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potential alternate hosts for retries within a cell for each
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instance.
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1.20 - migrate_server() now gets a 'host_list' parameter that represents
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potential alternate hosts for retries within a cell.
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"""
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def __init__(self):
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super(ComputeTaskAPI, self).__init__()
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target = messaging.Target(topic=CONF.conductor.topic,
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namespace='compute_task',
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version='1.0')
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serializer = objects_base.NovaObjectSerializer()
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self.client = rpc.get_client(target, serializer=serializer)
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def live_migrate_instance(self, context, instance, scheduler_hint,
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block_migration, disk_over_commit, request_spec):
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kw = {'instance': instance, 'scheduler_hint': scheduler_hint,
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'block_migration': block_migration,
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'disk_over_commit': disk_over_commit,
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'request_spec': request_spec,
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}
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version = '1.15'
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cctxt = self.client.prepare(version=version)
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cctxt.cast(context, 'live_migrate_instance', **kw)
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# TODO(melwitt): Remove the reservations parameter in version 2.0 of the
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# RPC API.
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def migrate_server(self, context, instance, scheduler_hint, live, rebuild,
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flavor, block_migration, disk_over_commit,
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reservations=None, clean_shutdown=True, request_spec=None,
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host_list=None):
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kw = {'instance': instance, 'scheduler_hint': scheduler_hint,
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'live': live, 'rebuild': rebuild, 'flavor': flavor,
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'block_migration': block_migration,
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'disk_over_commit': disk_over_commit,
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'reservations': reservations,
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'clean_shutdown': clean_shutdown,
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'request_spec': request_spec,
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'host_list': host_list,
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}
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version = '1.20'
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if not self.client.can_send_version(version):
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del kw['host_list']
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version = '1.13'
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if not self.client.can_send_version(version):
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del kw['request_spec']
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version = '1.11'
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if not self.client.can_send_version(version):
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del kw['clean_shutdown']
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version = '1.10'
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if not self.client.can_send_version(version):
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kw['flavor'] = objects_base.obj_to_primitive(flavor)
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version = '1.6'
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if not self.client.can_send_version(version):
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kw['instance'] = jsonutils.to_primitive(
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objects_base.obj_to_primitive(instance))
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version = '1.4'
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cctxt = self.client.prepare(version=version)
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return cctxt.call(context, 'migrate_server', **kw)
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def build_instances(self, context, instances, image, filter_properties,
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admin_password, injected_files, requested_networks,
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security_groups, block_device_mapping, legacy_bdm=True,
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request_spec=None, host_lists=None):
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image_p = jsonutils.to_primitive(image)
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kwargs = {"instances": instances, "image": image_p,
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"filter_properties": filter_properties,
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"admin_password": admin_password,
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"injected_files": injected_files,
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"requested_networks": requested_networks,
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"security_groups": security_groups,
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"request_spec": request_spec,
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"host_lists": host_lists}
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version = '1.19'
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if not self.client.can_send_version(version):
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version = '1.18'
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kwargs.pop("host_lists")
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if not self.client.can_send_version(version):
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version = '1.10'
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kwargs.pop("request_spec")
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if not self.client.can_send_version(version):
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version = '1.9'
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if 'instance_type' in filter_properties:
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flavor = filter_properties['instance_type']
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flavor_p = objects_base.obj_to_primitive(flavor)
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kwargs["filter_properties"] = dict(filter_properties,
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instance_type=flavor_p)
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if not self.client.can_send_version(version):
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version = '1.8'
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nets = kwargs['requested_networks'].as_tuples()
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kwargs['requested_networks'] = nets
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if not self.client.can_send_version('1.7'):
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version = '1.5'
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bdm_p = objects_base.obj_to_primitive(block_device_mapping)
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kwargs.update({'block_device_mapping': bdm_p,
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'legacy_bdm': legacy_bdm})
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cctxt = self.client.prepare(version=version)
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cctxt.cast(context, 'build_instances', **kwargs)
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def schedule_and_build_instances(self, context, build_requests,
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request_specs,
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image, admin_password, injected_files,
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requested_networks,
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block_device_mapping,
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tags=None):
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version = '1.17'
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kw = {'build_requests': build_requests,
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'request_specs': request_specs,
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'image': jsonutils.to_primitive(image),
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'admin_password': admin_password,
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'injected_files': injected_files,
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'requested_networks': requested_networks,
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'block_device_mapping': block_device_mapping,
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'tags': tags}
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if not self.client.can_send_version(version):
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version = '1.16'
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del kw['tags']
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cctxt = self.client.prepare(version=version)
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cctxt.cast(context, 'schedule_and_build_instances', **kw)
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def unshelve_instance(self, context, instance, request_spec=None):
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version = '1.14'
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kw = {'instance': instance,
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'request_spec': request_spec
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}
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if not self.client.can_send_version(version):
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version = '1.3'
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del kw['request_spec']
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cctxt = self.client.prepare(version=version)
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cctxt.cast(context, 'unshelve_instance', **kw)
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def rebuild_instance(self, ctxt, instance, new_pass, injected_files,
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image_ref, orig_image_ref, orig_sys_metadata, bdms,
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recreate=False, on_shared_storage=False, host=None,
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preserve_ephemeral=False, request_spec=None, kwargs=None):
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version = '1.12'
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kw = {'instance': instance,
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'new_pass': new_pass,
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'injected_files': injected_files,
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'image_ref': image_ref,
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'orig_image_ref': orig_image_ref,
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'orig_sys_metadata': orig_sys_metadata,
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'bdms': bdms,
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'recreate': recreate,
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'on_shared_storage': on_shared_storage,
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'preserve_ephemeral': preserve_ephemeral,
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'host': host,
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'request_spec': request_spec,
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}
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if not self.client.can_send_version(version):
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version = '1.8'
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del kw['request_spec']
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cctxt = self.client.prepare(version=version)
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cctxt.cast(ctxt, 'rebuild_instance', **kw)
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