383 lines
14 KiB
Python
383 lines
14 KiB
Python
# Copyright 2016 Hewlett Packard Enterprise Development LP.
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# Copyright 2016 Universidade Federal de Campina Grande
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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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import operator
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from oslo_log import log as logging
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from oslo_utils import importutils
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from ironic.common import exception
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from ironic.common.i18n import _
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from ironic.common import states
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from ironic.drivers.modules.oneview import common
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LOG = logging.getLogger(__name__)
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oneview_exception = importutils.try_import('oneview_client.exceptions')
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oneview_utils = importutils.try_import('oneview_client.utils')
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def get_properties():
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return common.COMMON_PROPERTIES
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def prepare(oneview_client, task):
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"""Applies Server Profile and update the node when preparing.
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This method is responsible for applying a Server Profile to the Server
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Hardware and add the uri of the applied Server Profile in the node's
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'applied_server_profile_uri' field on properties/capabilities.
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:param oneview_client: an instance of the OneView client
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:param task: A TaskManager object
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:raises InstanceDeployFailure: If the node doesn't have the needed OneView
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informations, if Server Hardware is in use by an OneView user, or
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if the Server Profile can't be applied.
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"""
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if task.node.provision_state == states.DEPLOYING:
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try:
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instance_display_name = task.node.instance_info.get('display_name')
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instance_uuid = task.node.instance_uuid
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server_profile_name = (
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"%(instance_name)s [%(instance_uuid)s]" %
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{"instance_name": instance_display_name,
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"instance_uuid": instance_uuid}
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)
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allocate_server_hardware_to_ironic(oneview_client, task.node,
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server_profile_name)
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except exception.OneViewError as e:
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raise exception.InstanceDeployFailure(node=task.node.uuid,
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reason=e)
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def tear_down(oneview_client, task):
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"""Remove Server profile and update the node when tear down.
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This method is responsible for power a Server Hardware off, remove a Server
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Profile from the Server Hardware and remove the uri of the applied Server
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Profile from the node's 'applied_server_profile_uri' in
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properties/capabilities.
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:param oneview_client: an instance of the OneView client
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:param task: A TaskManager object
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:raises InstanceDeployFailure: If node has no uri of applied Server
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Profile, or if some error occur while deleting Server Profile.
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"""
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try:
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deallocate_server_hardware_from_ironic(oneview_client, task.node)
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except exception.OneViewError as e:
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raise exception.InstanceDeployFailure(node=task.node.uuid, reason=e)
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def prepare_cleaning(oneview_client, task):
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"""Applies Server Profile and update the node when preparing cleaning.
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This method is responsible for applying a Server Profile to the Server
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Hardware and add the uri of the applied Server Profile in the node's
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'applied_server_profile_uri' field on properties/capabilities.
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:param oneview_client: an instance of the OneView client
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:param task: A TaskManager object
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:raises NodeCleaningFailure: If the node doesn't have the needed OneView
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informations, if Server Hardware is in use by an OneView user, or
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if the Server Profile can't be applied.
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"""
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try:
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server_profile_name = "Ironic Cleaning [%s]" % task.node.uuid
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allocate_server_hardware_to_ironic(oneview_client, task.node,
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server_profile_name)
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except exception.OneViewError as e:
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oneview_error = common.SERVER_HARDWARE_ALLOCATION_ERROR
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driver_internal_info = task.node.driver_internal_info
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driver_internal_info['oneview_error'] = oneview_error
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task.node.driver_internal_info = driver_internal_info
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task.node.save()
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raise exception.NodeCleaningFailure(node=task.node.uuid,
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reason=e)
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def tear_down_cleaning(oneview_client, task):
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"""Remove Server profile and update the node when tear down cleaning.
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This method is responsible for power a Server Hardware off, remove a Server
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Profile from the Server Hardware and remove the uri of the applied Server
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Profile from the node's 'applied_server_profile_uri' in
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properties/capabilities.
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:param oneview_client: an instance of the OneView client
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:param task: A TaskManager object
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:raises NodeCleaningFailure: If node has no uri of applied Server Profile,
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or if some error occur while deleting Server Profile.
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"""
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try:
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deallocate_server_hardware_from_ironic(oneview_client, task.node)
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except exception.OneViewError as e:
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raise exception.NodeCleaningFailure(node=task.node.uuid, reason=e)
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def _is_node_in_use(server_hardware, applied_sp_uri, by_oneview=False):
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"""Check if node is in use by ironic or by OneView.
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:param by_oneview: Boolean value. True when want to verify if node is in
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use by OneView. False to verify if node is in use by
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ironic.
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:param node: an ironic node object
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:returns: Boolean value. True if by_oneview param is also True and node is
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in use by OneView, False otherwise. True if by_oneview param is
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False and node is in use by ironic, False otherwise.
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"""
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operation = operator.ne if by_oneview else operator.eq
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return (server_hardware.server_profile_uri not in (None, '') and
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operation(applied_sp_uri, server_hardware.server_profile_uri))
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def is_node_in_use_by_oneview(oneview_client, node):
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"""Check if node is in use by OneView user.
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:param oneview_client: an instance of the OneView client
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:param node: an ironic node object
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:returns: Boolean value. True if node is in use by OneView,
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False otherwise.
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:raises OneViewError: if not possible to get OneView's informations
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for the given node, if not possible to retrieve Server Hardware
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from OneView.
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"""
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positive = _("Node '%s' is in use by OneView.") % node.uuid
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negative = _("Node '%s' is not in use by OneView.") % node.uuid
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def predicate(server_hardware, applied_sp_uri):
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# Check if Profile exists in Oneview and it is different of the one
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# applied by ironic
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return _is_node_in_use(server_hardware, applied_sp_uri,
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by_oneview=True)
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return _check_applied_server_profile(oneview_client, node,
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predicate, positive, negative)
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def is_node_in_use_by_ironic(oneview_client, node):
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"""Check if node is in use by ironic in OneView.
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:param oneview_client: an instance of the OneView client
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:param node: an ironic node object
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:returns: Boolean value. True if node is in use by ironic,
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False otherwise.
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:raises OneViewError: if not possible to get OneView's information
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for the given node, if not possible to retrieve Server Hardware
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from OneView.
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"""
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positive = _("Node '%s' is in use by Ironic.") % node.uuid
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negative = _("Node '%s' is not in use by Ironic.") % node.uuid
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def predicate(server_hardware, applied_sp_uri):
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# Check if Profile exists in Oneview and it is equals of the one
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# applied by ironic
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return _is_node_in_use(server_hardware, applied_sp_uri,
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by_oneview=False)
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return _check_applied_server_profile(oneview_client, node,
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predicate, positive, negative)
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def _check_applied_server_profile(oneview_client, node,
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predicate, positive, negative):
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"""Check if node is in use by ironic in OneView.
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:param oneview_client: an instance of the OneView client
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:param node: an ironic node object
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:returns: Boolean value. True if node is in use by ironic,
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False otherwise.
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:raises OneViewError: if not possible to get OneView's information
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for the given node, if not possible to retrieve Server Hardware
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from OneView.
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"""
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oneview_info = common.get_oneview_info(node)
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sh_uuid = oneview_utils.get_uuid_from_uri(
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oneview_info.get("server_hardware_uri")
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)
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try:
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server_hardware = oneview_client.get_server_hardware_by_uuid(
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sh_uuid
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)
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except oneview_exception.OneViewResourceNotFoundError as e:
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msg = (_("Error while obtaining Server Hardware from node "
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"%(node_uuid)s. Error: %(error)s") %
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{'node_uuid': node.uuid, 'error': e})
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raise exception.OneViewError(error=msg)
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applied_sp_uri = (
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node.driver_info.get('applied_server_profile_uri')
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)
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result = predicate(server_hardware, applied_sp_uri)
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if result:
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LOG.debug(positive)
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else:
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LOG.debug(negative)
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return result
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def _add_applied_server_profile_uri_field(node, applied_profile):
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"""Adds the applied Server Profile uri to a node.
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:param node: an ironic node object
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"""
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driver_info = node.driver_info
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driver_info['applied_server_profile_uri'] = applied_profile.uri
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node.driver_info = driver_info
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node.save()
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def _del_applied_server_profile_uri_field(node):
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"""Delete the applied Server Profile uri from a node if it exists.
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:param node: an ironic node object
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"""
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driver_info = node.driver_info
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driver_info.pop('applied_server_profile_uri', None)
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node.driver_info = driver_info
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node.save()
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def allocate_server_hardware_to_ironic(oneview_client, node,
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server_profile_name):
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"""Allocate Server Hardware to ironic.
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:param oneview_client: an instance of the OneView client
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:param node: an ironic node object
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:param server_profile_name: a formatted string with the Server Profile
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name
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:raises OneViewError: if an error occurs while allocating the Server
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Hardware to ironic
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"""
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node_in_use_by_oneview = is_node_in_use_by_oneview(oneview_client, node)
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if not node_in_use_by_oneview:
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oneview_info = common.get_oneview_info(node)
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applied_sp_uri = node.driver_info.get('applied_server_profile_uri')
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sh_uuid = oneview_utils.get_uuid_from_uri(
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oneview_info.get("server_hardware_uri")
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)
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spt_uuid = oneview_utils.get_uuid_from_uri(
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oneview_info.get("server_profile_template_uri")
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)
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server_hardware = oneview_client.get_server_hardware_by_uuid(sh_uuid)
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# Don't have Server Profile on OneView but has
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# `applied_server_profile_uri` on driver_info
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if (server_hardware.server_profile_uri in (None, '') and
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applied_sp_uri is not (None, '')):
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_del_applied_server_profile_uri_field(node)
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LOG.info(
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"Inconsistent 'applied_server_profile_uri' parameter "
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"value in driver_info. There is no Server Profile "
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"applied to node %(node_uuid)s. Value deleted.",
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{"node_uuid": node.uuid}
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)
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# applied_server_profile_uri exists and is equal to Server profile
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# applied on Hardware. Do not apply again.
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if (applied_sp_uri and server_hardware.server_profile_uri and
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server_hardware.server_profile_uri == applied_sp_uri):
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LOG.info(
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"The Server Profile %(applied_sp_uri)s was already applied "
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"by ironic on node %(node_uuid)s. Reusing.",
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{"node_uuid": node.uuid, "applied_sp_uri": applied_sp_uri}
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)
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return
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try:
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applied_profile = oneview_client.clone_template_and_apply(
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server_profile_name, sh_uuid, spt_uuid
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)
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_add_applied_server_profile_uri_field(node, applied_profile)
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LOG.info(
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"Server Profile %(server_profile_uuid)s was successfully"
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" applied to node %(node_uuid)s.",
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{"node_uuid": node.uuid,
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"server_profile_uuid": applied_profile.uri}
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)
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except oneview_exception.OneViewServerProfileAssignmentError as e:
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LOG.error("An error occurred during allocating server "
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"hardware to ironic during prepare: %s", e)
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raise exception.OneViewError(error=e)
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else:
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msg = (_("Node %s is already in use by OneView.") %
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node.uuid)
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raise exception.OneViewError(error=msg)
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def deallocate_server_hardware_from_ironic(oneview_client, node):
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"""Deallocate Server Hardware from ironic.
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:param oneview_client: an instance of the OneView client
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:param node: an ironic node object
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:raises OneViewError: if an error occurs while deallocating the Server
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Hardware to ironic
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"""
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if is_node_in_use_by_ironic(oneview_client, node):
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oneview_info = common.get_oneview_info(node)
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server_profile_uuid = oneview_utils.get_uuid_from_uri(
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oneview_info.get('applied_server_profile_uri')
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)
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try:
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oneview_client.power_off(oneview_info)
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oneview_client.delete_server_profile(server_profile_uuid)
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_del_applied_server_profile_uri_field(node)
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LOG.info("Server Profile %(server_profile_uuid)s was deleted "
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"from node %(node_uuid)s in OneView.",
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{'server_profile_uuid': server_profile_uuid,
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'node_uuid': node.uuid})
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except (ValueError, oneview_exception.OneViewException) as e:
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msg = (_("Error while deleting applied Server Profile from node "
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"%(node_uuid)s. Error: %(error)s") %
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{'node_uuid': node.uuid, 'error': e})
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raise exception.OneViewError(error=msg)
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else:
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LOG.warning("Cannot deallocate node %(node_uuid)s "
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"in OneView because it is not in use by "
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"ironic.", {'node_uuid': node.uuid})
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