367 lines
16 KiB
Python
367 lines
16 KiB
Python
# coding=utf-8
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#
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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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from oslo_utils import strutils
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from oslo_utils import uuidutils
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from oslo_versionedobjects import base as object_base
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from ironic.common import exception
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from ironic.common.i18n import _
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from ironic.db import api as db_api
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from ironic.objects import base
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from ironic.objects import fields as object_fields
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REQUIRED_INT_PROPERTIES = ['local_gb', 'cpus', 'memory_mb']
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@base.IronicObjectRegistry.register
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class Node(base.IronicObject, object_base.VersionedObjectDictCompat):
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# Version 1.0: Initial version
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# Version 1.1: Added instance_info
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# Version 1.2: Add get() and get_by_id() and make get_by_uuid()
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# only work with a uuid
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# Version 1.3: Add create() and destroy()
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# Version 1.4: Add get_by_instance_uuid()
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# Version 1.5: Add list()
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# Version 1.6: Add reserve() and release()
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# Version 1.7: Add conductor_affinity
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# Version 1.8: Add maintenance_reason
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# Version 1.9: Add driver_internal_info
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# Version 1.10: Add name and get_by_name()
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# Version 1.11: Add clean_step
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# Version 1.12: Add raid_config and target_raid_config
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# Version 1.13: Add touch_provisioning()
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# Version 1.14: Add _validate_property_values() and make create()
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# and save() validate the input of property values.
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VERSION = '1.14'
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dbapi = db_api.get_instance()
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fields = {
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'id': object_fields.IntegerField(),
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'uuid': object_fields.UUIDField(nullable=True),
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'name': object_fields.StringField(nullable=True),
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'chassis_id': object_fields.IntegerField(nullable=True),
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'instance_uuid': object_fields.UUIDField(nullable=True),
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'driver': object_fields.StringField(nullable=True),
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'driver_info': object_fields.FlexibleDictField(nullable=True),
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'driver_internal_info': object_fields.FlexibleDictField(nullable=True),
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# A clean step dictionary, indicating the current clean step
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# being executed, or None, indicating cleaning is not in progress
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# or has not yet started.
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'clean_step': object_fields.FlexibleDictField(nullable=True),
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'raid_config': object_fields.FlexibleDictField(nullable=True),
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'target_raid_config': object_fields.FlexibleDictField(nullable=True),
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'instance_info': object_fields.FlexibleDictField(nullable=True),
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'properties': object_fields.FlexibleDictField(nullable=True),
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'reservation': object_fields.StringField(nullable=True),
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# a reference to the id of the conductor service, not its hostname,
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# that has most recently performed some action which could require
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# local state to be maintained (eg, built a PXE config)
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'conductor_affinity': object_fields.IntegerField(nullable=True),
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# One of states.POWER_ON|POWER_OFF|NOSTATE|ERROR
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'power_state': object_fields.StringField(nullable=True),
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# Set to one of states.POWER_ON|POWER_OFF when a power operation
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# starts, and set to NOSTATE when the operation finishes
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# (successfully or unsuccessfully).
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'target_power_state': object_fields.StringField(nullable=True),
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'provision_state': object_fields.StringField(nullable=True),
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'provision_updated_at': object_fields.DateTimeField(nullable=True),
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'target_provision_state': object_fields.StringField(nullable=True),
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'maintenance': object_fields.BooleanField(),
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'maintenance_reason': object_fields.StringField(nullable=True),
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'console_enabled': object_fields.BooleanField(),
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# Any error from the most recent (last) asynchronous transaction
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# that started but failed to finish.
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'last_error': object_fields.StringField(nullable=True),
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'inspection_finished_at': object_fields.DateTimeField(nullable=True),
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'inspection_started_at': object_fields.DateTimeField(nullable=True),
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'extra': object_fields.FlexibleDictField(nullable=True),
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}
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def _validate_property_values(self, properties):
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"""Check if the input of local_gb, cpus and memory_mb are valid.
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:param properties: a dict contains the node's information.
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"""
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if not properties:
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return
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invalid_msgs_list = []
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for param in REQUIRED_INT_PROPERTIES:
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value = properties.get(param)
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if value is None:
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continue
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try:
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int_value = int(value)
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assert int_value >= 0
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except (ValueError, AssertionError):
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msg = (('%(param)s=%(value)s') %
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{'param': param, 'value': value})
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invalid_msgs_list.append(msg)
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if invalid_msgs_list:
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msg = (_('The following properties for node %(node)s '
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'should be non-negative integers, '
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'but provided values are: %(msgs)s') %
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{'node': self.uuid, 'msgs': ', '.join(invalid_msgs_list)})
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raise exception.InvalidParameterValue(msg)
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# NOTE(xek): We don't want to enable RPC on this call just yet. Remotable
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# methods can be used in the future to replace current explicit RPC calls.
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# Implications of calling new remote procedures should be thought through.
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# @object_base.remotable_classmethod
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@classmethod
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def get(cls, context, node_id):
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"""Find a node based on its id or uuid and return a Node object.
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:param node_id: the id *or* uuid of a node.
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:returns: a :class:`Node` object.
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"""
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if strutils.is_int_like(node_id):
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return cls.get_by_id(context, node_id)
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elif uuidutils.is_uuid_like(node_id):
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return cls.get_by_uuid(context, node_id)
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else:
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raise exception.InvalidIdentity(identity=node_id)
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# NOTE(xek): We don't want to enable RPC on this call just yet. Remotable
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# methods can be used in the future to replace current explicit RPC calls.
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# Implications of calling new remote procedures should be thought through.
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# @object_base.remotable_classmethod
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@classmethod
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def get_by_id(cls, context, node_id):
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"""Find a node based on its integer id and return a Node object.
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:param node_id: the id of a node.
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:returns: a :class:`Node` object.
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"""
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db_node = cls.dbapi.get_node_by_id(node_id)
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node = Node._from_db_object(cls(context), db_node)
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return node
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# NOTE(xek): We don't want to enable RPC on this call just yet. Remotable
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# methods can be used in the future to replace current explicit RPC calls.
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# Implications of calling new remote procedures should be thought through.
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# @object_base.remotable_classmethod
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@classmethod
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def get_by_uuid(cls, context, uuid):
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"""Find a node based on uuid and return a Node object.
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:param uuid: the uuid of a node.
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:returns: a :class:`Node` object.
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"""
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db_node = cls.dbapi.get_node_by_uuid(uuid)
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node = Node._from_db_object(cls(context), db_node)
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return node
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# NOTE(xek): We don't want to enable RPC on this call just yet. Remotable
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# methods can be used in the future to replace current explicit RPC calls.
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# Implications of calling new remote procedures should be thought through.
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# @object_base.remotable_classmethod
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@classmethod
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def get_by_name(cls, context, name):
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"""Find a node based on name and return a Node object.
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:param name: the logical name of a node.
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:returns: a :class:`Node` object.
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"""
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db_node = cls.dbapi.get_node_by_name(name)
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node = Node._from_db_object(cls(context), db_node)
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return node
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# NOTE(xek): We don't want to enable RPC on this call just yet. Remotable
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# methods can be used in the future to replace current explicit RPC calls.
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# Implications of calling new remote procedures should be thought through.
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# @object_base.remotable_classmethod
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@classmethod
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def get_by_instance_uuid(cls, context, instance_uuid):
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"""Find a node based on the instance uuid and return a Node object.
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:param uuid: the uuid of the instance.
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:returns: a :class:`Node` object.
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"""
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db_node = cls.dbapi.get_node_by_instance(instance_uuid)
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node = Node._from_db_object(cls(context), db_node)
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return node
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# NOTE(xek): We don't want to enable RPC on this call just yet. Remotable
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# methods can be used in the future to replace current explicit RPC calls.
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# Implications of calling new remote procedures should be thought through.
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# @object_base.remotable_classmethod
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@classmethod
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def list(cls, context, limit=None, marker=None, sort_key=None,
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sort_dir=None, filters=None):
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"""Return a list of Node objects.
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:param context: Security context.
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:param limit: maximum number of resources to return in a single result.
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:param marker: pagination marker for large data sets.
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:param sort_key: column to sort results by.
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:param sort_dir: direction to sort. "asc" or "desc".
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:param filters: Filters to apply.
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:returns: a list of :class:`Node` object.
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"""
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db_nodes = cls.dbapi.get_node_list(filters=filters, limit=limit,
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marker=marker, sort_key=sort_key,
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sort_dir=sort_dir)
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return [Node._from_db_object(cls(context), obj) for obj in db_nodes]
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# NOTE(xek): We don't want to enable RPC on this call just yet. Remotable
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# methods can be used in the future to replace current explicit RPC calls.
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# Implications of calling new remote procedures should be thought through.
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# @object_base.remotable_classmethod
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@classmethod
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def reserve(cls, context, tag, node_id):
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"""Get and reserve a node.
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To prevent other ManagerServices from manipulating the given
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Node while a Task is performed, mark it reserved by this host.
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:param context: Security context.
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:param tag: A string uniquely identifying the reservation holder.
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:param node_id: A node id or uuid.
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:raises: NodeNotFound if the node is not found.
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:returns: a :class:`Node` object.
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"""
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db_node = cls.dbapi.reserve_node(tag, node_id)
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node = Node._from_db_object(cls(context), db_node)
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return node
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# NOTE(xek): We don't want to enable RPC on this call just yet. Remotable
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# methods can be used in the future to replace current explicit RPC calls.
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# Implications of calling new remote procedures should be thought through.
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# @object_base.remotable_classmethod
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@classmethod
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def release(cls, context, tag, node_id):
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"""Release the reservation on a node.
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:param context: Security context.
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:param tag: A string uniquely identifying the reservation holder.
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:param node_id: A node id or uuid.
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:raises: NodeNotFound if the node is not found.
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"""
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cls.dbapi.release_node(tag, node_id)
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# NOTE(xek): We don't want to enable RPC on this call just yet. Remotable
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# methods can be used in the future to replace current explicit RPC calls.
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# Implications of calling new remote procedures should be thought through.
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# @object_base.remotable
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def create(self, context=None):
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"""Create a Node record in the DB.
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Column-wise updates will be made based on the result of
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self.what_changed(). If target_power_state is provided,
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it will be checked against the in-database copy of the
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node before updates are made.
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:param context: Security context. NOTE: This should only
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be used internally by the indirection_api.
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Unfortunately, RPC requires context as the first
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argument, even though we don't use it.
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A context should be set when instantiating the
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object, e.g.: Node(context)
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:raises: InvalidParameterValue if some property values are invalid.
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"""
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values = self.obj_get_changes()
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self._validate_property_values(values.get('properties'))
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db_node = self.dbapi.create_node(values)
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self._from_db_object(self, db_node)
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# NOTE(xek): We don't want to enable RPC on this call just yet. Remotable
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# methods can be used in the future to replace current explicit RPC calls.
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# Implications of calling new remote procedures should be thought through.
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# @object_base.remotable
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def destroy(self, context=None):
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"""Delete the Node from the DB.
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:param context: Security context. NOTE: This should only
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be used internally by the indirection_api.
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Unfortunately, RPC requires context as the first
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argument, even though we don't use it.
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A context should be set when instantiating the
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object, e.g.: Node(context)
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"""
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self.dbapi.destroy_node(self.uuid)
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self.obj_reset_changes()
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# NOTE(xek): We don't want to enable RPC on this call just yet. Remotable
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# methods can be used in the future to replace current explicit RPC calls.
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# Implications of calling new remote procedures should be thought through.
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# @object_base.remotable
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def save(self, context=None):
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"""Save updates to this Node.
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Column-wise updates will be made based on the result of
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self.what_changed(). If target_power_state is provided,
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it will be checked against the in-database copy of the
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node before updates are made.
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:param context: Security context. NOTE: This should only
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be used internally by the indirection_api.
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Unfortunately, RPC requires context as the first
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argument, even though we don't use it.
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A context should be set when instantiating the
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object, e.g.: Node(context)
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:raises: InvalidParameterValue if some property values are invalid.
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"""
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updates = self.obj_get_changes()
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self._validate_property_values(updates.get('properties'))
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if 'driver' in updates and 'driver_internal_info' not in updates:
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# Clean driver_internal_info when changes driver
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self.driver_internal_info = {}
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updates = self.obj_get_changes()
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self.dbapi.update_node(self.uuid, updates)
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self.obj_reset_changes()
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# NOTE(xek): We don't want to enable RPC on this call just yet. Remotable
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# methods can be used in the future to replace current explicit RPC calls.
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# Implications of calling new remote procedures should be thought through.
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# @object_base.remotable
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def refresh(self, context=None):
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"""Refresh the object by re-fetching from the DB.
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:param context: Security context. NOTE: This should only
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be used internally by the indirection_api.
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Unfortunately, RPC requires context as the first
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argument, even though we don't use it.
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A context should be set when instantiating the
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object, e.g.: Node(context)
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"""
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current = self.__class__.get_by_uuid(self._context, self.uuid)
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self.obj_refresh(current)
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# NOTE(xek): We don't want to enable RPC on this call just yet. Remotable
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# methods can be used in the future to replace current explicit RPC calls.
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# Implications of calling new remote procedures should be thought through.
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# @object_base.remotable
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def touch_provisioning(self, context=None):
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"""Touch the database record to mark the provisioning as alive."""
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self.dbapi.touch_node_provisioning(self.id)
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