1733 lines
74 KiB
Python
1733 lines
74 KiB
Python
# Copyright (c) 2014 NetApp Inc.
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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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"""NAS share manager managers creating shares and access rights.
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**Related Flags**
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:share_driver: Used by :class:`ShareManager`.
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"""
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import copy
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import datetime
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from oslo_config import cfg
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from oslo_log import log
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from oslo_serialization import jsonutils
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from oslo_service import periodic_task
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from oslo_utils import excutils
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from oslo_utils import importutils
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from oslo_utils import strutils
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from oslo_utils import timeutils
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import six
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from manila.common import constants
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from manila import context
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from manila import exception
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from manila.i18n import _
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from manila.i18n import _LE
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from manila.i18n import _LI
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from manila.i18n import _LW
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from manila import manager
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from manila import quota
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import manila.share.configuration
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from manila.share import drivers_private_data
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from manila.share import migration
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from manila.share import rpcapi as share_rpcapi
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from manila.share import share_types
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from manila.share import utils as share_utils
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from manila import utils
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LOG = log.getLogger(__name__)
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share_manager_opts = [
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cfg.StrOpt('share_driver',
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default='manila.share.drivers.generic.GenericShareDriver',
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help='Driver to use for share creation.'),
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cfg.ListOpt('hook_drivers',
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default=[],
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help='Driver(s) to perform some additional actions before and '
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'after share driver actions and on a periodic basis. '
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'Default is [].',
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deprecated_group='DEFAULT'),
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cfg.BoolOpt('delete_share_server_with_last_share',
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default=False,
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help='Whether share servers will '
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'be deleted on deletion of the last share.'),
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cfg.BoolOpt('unmanage_remove_access_rules',
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default=False,
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help='If set to True, then manila will deny access and remove '
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'all access rules on share unmanage.'
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'If set to False - nothing will be changed.'),
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cfg.BoolOpt('automatic_share_server_cleanup',
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default=True,
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help='If set to True, then Manila will delete all share '
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'servers which were unused more than specified time .'
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'If set to False - automatic deletion of share servers '
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'will be disabled.',
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deprecated_group='DEFAULT'),
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cfg.IntOpt('unused_share_server_cleanup_interval',
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default=10,
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help='Unallocated share servers reclamation time interval '
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'(minutes). Minimum value is 10 minutes, maximum is 60 '
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'minutes. The reclamation function is run every '
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'10 minutes and delete share servers which were unused '
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'more than unused_share_server_cleanup_interval option '
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'defines. This value reflects the shortest time Manila '
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'will wait for a share server to go unutilized before '
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'deleting it.',
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deprecated_group='DEFAULT'),
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]
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CONF = cfg.CONF
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CONF.register_opts(share_manager_opts)
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CONF.import_opt('periodic_hooks_interval', 'manila.share.hook')
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# Drivers that need to change module paths or class names can add their
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# old/new path here to maintain backward compatibility.
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MAPPING = {
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'manila.share.drivers.netapp.cluster_mode.NetAppClusteredShareDriver':
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'manila.share.drivers.netapp.common.NetAppDriver',
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'manila.share.drivers.hp.hp_3par_driver.HP3ParShareDriver':
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'manila.share.drivers.hpe.hpe_3par_driver.HPE3ParShareDriver',
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}
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QUOTAS = quota.QUOTAS
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def add_hooks(f):
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def wrapped(self, *args, **kwargs):
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if not self.hooks:
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return f(self, *args, **kwargs)
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pre_hook_results = []
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for hook in self.hooks:
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pre_hook_results.append(
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hook.execute_pre_hook(
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func_name=f.__name__,
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*args, **kwargs))
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wrapped_func_results = f(self, *args, **kwargs)
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for i, hook in enumerate(self.hooks):
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hook.execute_post_hook(
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func_name=f.__name__,
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driver_action_results=wrapped_func_results,
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pre_hook_data=pre_hook_results[i],
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*args, **kwargs)
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return wrapped_func_results
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return wrapped
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class ShareManager(manager.SchedulerDependentManager):
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"""Manages NAS storages."""
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RPC_API_VERSION = '1.6'
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def __init__(self, share_driver=None, service_name=None, *args, **kwargs):
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"""Load the driver from args, or from flags."""
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self.configuration = manila.share.configuration.Configuration(
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share_manager_opts,
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config_group=service_name)
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self._verify_unused_share_server_cleanup_interval()
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super(ShareManager, self).__init__(service_name='share',
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*args, **kwargs)
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if not share_driver:
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share_driver = self.configuration.share_driver
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if share_driver in MAPPING:
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msg_args = {'old': share_driver, 'new': MAPPING[share_driver]}
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LOG.warning(_LW("Driver path %(old)s is deprecated, update your "
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"configuration to the new path %(new)s"),
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msg_args)
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share_driver = MAPPING[share_driver]
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ctxt = context.get_admin_context()
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private_storage = drivers_private_data.DriverPrivateData(
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context=ctxt, backend_host=self.host,
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config_group=self.configuration.config_group
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)
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self.driver = importutils.import_object(
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share_driver, private_storage=private_storage,
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configuration=self.configuration
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)
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self.hooks = []
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self._init_hook_drivers()
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def _init_hook_drivers(self):
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# Try to initialize hook driver(s).
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hook_drivers = self.configuration.safe_get("hook_drivers")
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for hook_driver in hook_drivers:
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self.hooks.append(
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importutils.import_object(
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hook_driver,
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configuration=self.configuration,
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host=self.host,
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)
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)
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def _ensure_share_instance_has_pool(self, ctxt, share_instance):
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pool = share_utils.extract_host(share_instance['host'], 'pool')
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if pool is None:
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# No pool name encoded in host, so this is a legacy
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# share created before pool is introduced, ask
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# driver to provide pool info if it has such
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# knowledge and update the DB.
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try:
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pool = self.driver.get_pool(share_instance)
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except Exception as err:
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LOG.error(_LE("Failed to fetch pool name for share: "
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"%(share)s. Error: %(error)s."),
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{'share': share_instance['id'], 'error': err})
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return
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if pool:
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new_host = share_utils.append_host(
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share_instance['host'], pool)
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self.db.share_update(
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ctxt, share_instance['id'], {'host': new_host})
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return pool
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@add_hooks
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def init_host(self):
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"""Initialization for a standalone service."""
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ctxt = context.get_admin_context()
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try:
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self.driver.do_setup(ctxt)
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self.driver.check_for_setup_error()
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except Exception as e:
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LOG.exception(
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_LE("Error encountered during initialization of driver "
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"'%(name)s' on '%(host)s' host. %(exc)s"), {
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"name": self.driver.__class__.__name__,
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"host": self.host,
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"exc": e,
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}
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)
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self.driver.initialized = False
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# we don't want to continue since we failed
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# to initialize the driver correctly.
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return
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else:
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self.driver.initialized = True
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share_instances = self.db.share_instances_get_all_by_host(ctxt,
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self.host)
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LOG.debug("Re-exporting %s shares", len(share_instances))
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for share_instance in share_instances:
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share_ref = self.db.share_get(ctxt, share_instance['share_id'])
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if share_ref.is_busy:
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LOG.info(
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_LI("Share instance %(id)s: skipping export, "
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"because it is busy with an active task: %(task)s."),
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{'id': share_instance['id'],
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'task': share_ref['task_state']},
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)
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continue
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if share_instance['status'] != constants.STATUS_AVAILABLE:
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LOG.info(
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_LI("Share instance %(id)s: skipping export, "
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"because it has '%(status)s' status."),
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{'id': share_instance['id'],
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'status': share_instance['status']},
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)
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continue
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self._ensure_share_instance_has_pool(ctxt, share_instance)
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share_server = self._get_share_server(ctxt, share_instance)
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share_instance = self.db.share_instance_get(
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ctxt, share_instance['id'], with_share_data=True)
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try:
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export_locations = self.driver.ensure_share(
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ctxt, share_instance, share_server=share_server)
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except Exception as e:
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LOG.error(
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_LE("Caught exception trying ensure share '%(s_id)s'. "
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"Exception: \n%(e)s."),
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{'s_id': share_instance['id'], 'e': six.text_type(e)},
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)
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continue
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if export_locations:
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self.db.share_export_locations_update(
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ctxt, share_instance['id'], export_locations)
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rules = self.db.share_access_get_all_for_share(
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ctxt, share_instance['share_id'])
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for access_ref in rules:
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if access_ref['state'] != constants.STATUS_ACTIVE:
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continue
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try:
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self.driver.allow_access(ctxt, share_instance, access_ref,
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share_server=share_server)
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except exception.ShareAccessExists:
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pass
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except Exception as e:
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LOG.error(
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_LE("Unexpected exception during share access"
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" allow operation. Share id is '%(s_id)s'"
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", access rule type is '%(ar_type)s', "
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"access rule id is '%(ar_id)s', exception"
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" is '%(e)s'."),
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{'s_id': share_instance['id'],
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'ar_type': access_ref['access_type'],
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'ar_id': access_ref['id'],
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'e': six.text_type(e)},
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)
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self.publish_service_capabilities(ctxt)
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def _provide_share_server_for_share(self, context, share_network_id,
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share_instance, snapshot=None,
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consistency_group=None):
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"""Gets or creates share_server and updates share with its id.
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Active share_server can be deleted if there are no dependent shares
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on it.
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So we need avoid possibility to delete share_server in time gap
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between reaching active state for share_server and setting up
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share_server_id for share. It is possible, for example, with first
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share creation, which starts share_server creation.
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For this purpose used shared lock between this method and the one
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with deletion of share_server.
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:param context: Current context
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:param share_network_id: Share network where existing share server
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should be found or created. If
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share_network_id is None method use
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share_network_id from provided snapshot.
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:param share_instance: Share Instance model
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:param snapshot: Optional -- Snapshot model
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:returns: dict, dict -- first value is share_server, that
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has been chosen for share schedule. Second value is
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share updated with share_server_id.
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"""
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if not (share_network_id or snapshot):
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msg = _("'share_network_id' parameter or 'snapshot'"
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" should be provided. ")
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raise ValueError(msg)
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parent_share_server = None
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def error(msg, *args):
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LOG.error(msg, *args)
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self.db.share_instance_update(context, share_instance['id'],
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{'status': constants.STATUS_ERROR})
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if snapshot:
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parent_share_server_id = snapshot['share']['share_server_id']
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try:
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parent_share_server = self.db.share_server_get(
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context, parent_share_server_id)
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except exception.ShareServerNotFound:
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with excutils.save_and_reraise_exception():
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error(_LE("Parent share server %s does not exist."),
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parent_share_server_id)
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if parent_share_server['status'] != constants.STATUS_ACTIVE:
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error_params = {
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'id': parent_share_server_id,
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'status': parent_share_server['status'],
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}
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error(_LE("Parent share server %(id)s has invalid status "
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"'%(status)s'."), error_params)
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raise exception.InvalidShareServer(
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share_server_id=parent_share_server
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)
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if parent_share_server and not share_network_id:
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share_network_id = parent_share_server['share_network_id']
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def get_available_share_servers():
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if parent_share_server:
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return [parent_share_server]
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else:
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return (
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self.db.share_server_get_all_by_host_and_share_net_valid(
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context, self.host, share_network_id)
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)
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@utils.synchronized("share_manager_%s" % share_network_id,
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external=True)
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def _provide_share_server_for_share():
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try:
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available_share_servers = get_available_share_servers()
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except exception.ShareServerNotFound:
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available_share_servers = None
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compatible_share_server = None
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if available_share_servers:
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try:
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compatible_share_server = (
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self.driver.choose_share_server_compatible_with_share(
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context, available_share_servers, share_instance,
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snapshot=snapshot.instance if snapshot else None,
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consistency_group=consistency_group
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)
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)
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except Exception as e:
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with excutils.save_and_reraise_exception():
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error(_LE("Cannot choose compatible share server: %s"),
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e)
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if not compatible_share_server:
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compatible_share_server = self.db.share_server_create(
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context,
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{
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'host': self.host,
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'share_network_id': share_network_id,
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'status': constants.STATUS_CREATING
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}
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)
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msg = ("Using share_server %(share_server)s for share instance"
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" %(share_instance_id)s")
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LOG.debug(msg, {
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'share_server': compatible_share_server['id'],
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'share_instance_id': share_instance['id']
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})
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share_instance_ref = self.db.share_instance_update(
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context,
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share_instance['id'],
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{'share_server_id': compatible_share_server['id']},
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with_share_data=True
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)
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if compatible_share_server['status'] == constants.STATUS_CREATING:
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# Create share server on backend with data from db.
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compatible_share_server = self._setup_server(
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context, compatible_share_server)
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LOG.info(_LI("Share server created successfully."))
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else:
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LOG.info(_LI("Used preexisting share server "
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"'%(share_server_id)s'"),
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{'share_server_id': compatible_share_server['id']})
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return compatible_share_server, share_instance_ref
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return _provide_share_server_for_share()
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def _provide_share_server_for_cg(self, context, share_network_id,
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cg_ref, cgsnapshot=None):
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"""Gets or creates share_server and updates share with its id.
|
|
|
|
Active share_server can be deleted if there are no dependent shares
|
|
on it.
|
|
So we need avoid possibility to delete share_server in time gap
|
|
between reaching active state for share_server and setting up
|
|
share_server_id for share. It is possible, for example, with first
|
|
share creation, which starts share_server creation.
|
|
For this purpose used shared lock between this method and the one
|
|
with deletion of share_server.
|
|
|
|
:param context: Current context
|
|
:param share_network_id: Share network where existing share server
|
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should be found or created. If
|
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share_network_id is None method use
|
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share_network_id from provided snapshot.
|
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:param cg_ref: Consistency Group model
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:param cgsnapshot: Optional -- CGSnapshot model
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|
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:returns: dict, dict -- first value is share_server, that
|
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has been chosen for consistency group schedule.
|
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Second value is consistency group updated with
|
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share_server_id.
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"""
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if not (share_network_id or cgsnapshot):
|
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msg = _("'share_network_id' parameter or 'snapshot'"
|
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" should be provided. ")
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raise exception.InvalidInput(reason=msg)
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|
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def error(msg, *args):
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LOG.error(msg, *args)
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self.db.consistency_group_update(
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context, cg_ref['id'], {'status': constants.STATUS_ERROR})
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|
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@utils.synchronized("share_manager_%s" % share_network_id,
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external=True)
|
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def _provide_share_server_for_cg():
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try:
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available_share_servers = (
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self.db.share_server_get_all_by_host_and_share_net_valid(
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context, self.host, share_network_id))
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except exception.ShareServerNotFound:
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available_share_servers = None
|
|
|
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compatible_share_server = None
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|
|
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if available_share_servers:
|
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try:
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compatible_share_server = (
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self.driver.choose_share_server_compatible_with_cg(
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context, available_share_servers, cg_ref,
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cgsnapshot=cgsnapshot
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)
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)
|
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except Exception as e:
|
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with excutils.save_and_reraise_exception():
|
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error(_LE("Cannot choose compatible share-server: %s"),
|
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e)
|
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|
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if not compatible_share_server:
|
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compatible_share_server = self.db.share_server_create(
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context,
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{
|
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'host': self.host,
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'share_network_id': share_network_id,
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'status': constants.STATUS_CREATING
|
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}
|
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)
|
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|
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msg = ("Using share_server %(share_server)s for consistency "
|
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"group %(cg_id)s")
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LOG.debug(msg, {
|
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'share_server': compatible_share_server['id'],
|
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'cg_id': cg_ref['id']
|
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})
|
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|
|
updated_cg = self.db.consistency_group_update(
|
|
context,
|
|
cg_ref['id'],
|
|
{'share_server_id': compatible_share_server['id']},
|
|
)
|
|
|
|
if compatible_share_server['status'] == constants.STATUS_CREATING:
|
|
# Create share server on backend with data from db.
|
|
compatible_share_server = self._setup_server(
|
|
context, compatible_share_server)
|
|
LOG.info(_LI("Share server created successfully."))
|
|
else:
|
|
LOG.info(_LI("Used preexisting share server "
|
|
"'%(share_server_id)s'"),
|
|
{'share_server_id': compatible_share_server['id']})
|
|
return compatible_share_server, updated_cg
|
|
|
|
return _provide_share_server_for_cg()
|
|
|
|
def _get_share_server(self, context, share_instance):
|
|
if share_instance['share_server_id']:
|
|
return self.db.share_server_get(
|
|
context, share_instance['share_server_id'])
|
|
else:
|
|
return None
|
|
|
|
def get_migration_info(self, ctxt, share_instance_id, share_server):
|
|
share_instance = self.db.share_instance_get(
|
|
ctxt, share_instance_id, with_share_data=True)
|
|
return self.driver.get_migration_info(ctxt, share_instance,
|
|
share_server)
|
|
|
|
def get_driver_migration_info(self, ctxt, share_instance_id, share_server):
|
|
share_instance = self.db.share_instance_get(
|
|
ctxt, share_instance_id, with_share_data=True)
|
|
return self.driver.get_driver_migration_info(ctxt, share_instance,
|
|
share_server)
|
|
|
|
@utils.require_driver_initialized
|
|
def migrate_share(self, ctxt, share_id, host, force_host_copy=False):
|
|
"""Migrates a share from current host to another host."""
|
|
LOG.debug("Entered migrate_share method for share %s." % share_id)
|
|
|
|
# NOTE(ganso): Cinder checks if driver is initialized before doing
|
|
# anything. This might not be needed, as this code may not be reached
|
|
# if driver service is not running. If for any reason service is
|
|
# running but driver is not, the following code should fail at specific
|
|
# points, which would be effectively the same as throwing an
|
|
# exception here.
|
|
|
|
rpcapi = share_rpcapi.ShareAPI()
|
|
share_ref = self.db.share_get(ctxt, share_id)
|
|
share_instance = self._get_share_instance(ctxt, share_ref)
|
|
moved = False
|
|
msg = None
|
|
|
|
self.db.share_update(
|
|
ctxt, share_ref['id'],
|
|
{'task_state': constants.STATUS_TASK_STATE_MIGRATION_IN_PROGRESS})
|
|
|
|
if not force_host_copy:
|
|
try:
|
|
|
|
share_server = self._get_share_server(ctxt.elevated(),
|
|
share_instance)
|
|
|
|
dest_driver_migration_info = rpcapi.get_driver_migration_info(
|
|
ctxt, share_instance, share_server)
|
|
|
|
LOG.debug("Calling driver migration for share %s." % share_id)
|
|
|
|
moved, model_update = self.driver.migrate_share(
|
|
ctxt, share_instance, host, dest_driver_migration_info)
|
|
|
|
# NOTE(ganso): Here we are allowing the driver to perform
|
|
# changes even if it has not performed migration. While this
|
|
# scenario may not be valid, I am not sure if it should be
|
|
# forcefully prevented.
|
|
|
|
if model_update:
|
|
self.db.share_instance_update(ctxt, share_instance['id'],
|
|
model_update)
|
|
|
|
except exception.ManilaException as e:
|
|
msg = six.text_type(e)
|
|
LOG.exception(msg)
|
|
|
|
if not moved:
|
|
try:
|
|
LOG.debug("Starting generic migration "
|
|
"for share %s." % share_id)
|
|
|
|
moved = self._migrate_share_generic(ctxt, share_ref, host)
|
|
except Exception as e:
|
|
msg = six.text_type(e)
|
|
LOG.exception(msg)
|
|
LOG.error(_LE("Generic migration failed for"
|
|
" share %s.") % share_id)
|
|
|
|
if moved:
|
|
self.db.share_update(
|
|
ctxt, share_id,
|
|
{'task_state': constants.STATUS_TASK_STATE_MIGRATION_SUCCESS})
|
|
|
|
LOG.info(_LI("Share Migration for share %s"
|
|
" completed successfully.") % share_id)
|
|
else:
|
|
self.db.share_update(
|
|
ctxt, share_id,
|
|
{'task_state': constants.STATUS_TASK_STATE_MIGRATION_ERROR})
|
|
raise exception.ShareMigrationFailed(reason=msg)
|
|
|
|
def _migrate_share_generic(self, context, share, host):
|
|
|
|
rpcapi = share_rpcapi.ShareAPI()
|
|
|
|
share_instance = self._get_share_instance(context, share)
|
|
|
|
access_rule_timeout = self.driver.configuration.safe_get(
|
|
'migration_wait_access_rules_timeout')
|
|
|
|
create_delete_timeout = self.driver.configuration.safe_get(
|
|
'migration_create_delete_share_timeout')
|
|
|
|
helper = migration.ShareMigrationHelper(
|
|
context, self.db, create_delete_timeout,
|
|
access_rule_timeout, share)
|
|
|
|
# NOTE(ganso): We are going to save all access rules prior to removal.
|
|
# Since we may have several instances of the same share, it may be
|
|
# a good idea to limit or remove all instances/replicas' access
|
|
# so they remain unchanged as well during migration.
|
|
|
|
readonly_support = self.driver.configuration.safe_get(
|
|
'migration_readonly_support')
|
|
|
|
saved_rules = helper.change_to_read_only(readonly_support)
|
|
|
|
try:
|
|
|
|
new_share_instance = helper.create_instance_and_wait(
|
|
context, share, share_instance, host)
|
|
|
|
self.db.share_instance_update(
|
|
context, new_share_instance['id'],
|
|
{'status': constants.STATUS_INACTIVE}
|
|
)
|
|
|
|
LOG.debug("Time to start copying in migration"
|
|
" for share %s." % share['id'])
|
|
|
|
share_server = self._get_share_server(context.elevated(),
|
|
share_instance)
|
|
new_share_server = self._get_share_server(context.elevated(),
|
|
new_share_instance)
|
|
|
|
src_migration_info = self.driver.get_migration_info(
|
|
context, share_instance, share_server)
|
|
|
|
dest_migration_info = rpcapi.get_migration_info(
|
|
context, new_share_instance, new_share_server)
|
|
|
|
self.driver.copy_share_data(context, helper, share, share_instance,
|
|
share_server, new_share_instance,
|
|
new_share_server, src_migration_info,
|
|
dest_migration_info)
|
|
|
|
except Exception as e:
|
|
LOG.exception(six.text_type(e))
|
|
LOG.error(_LE("Share migration failed, reverting access rules for "
|
|
"share %s.") % share['id'])
|
|
helper.revert_access_rules(readonly_support, saved_rules)
|
|
raise
|
|
|
|
helper.revert_access_rules(readonly_support, saved_rules)
|
|
|
|
self.db.share_update(
|
|
context, share['id'],
|
|
{'task_state': constants.STATUS_TASK_STATE_MIGRATION_COMPLETING})
|
|
|
|
self.db.share_instance_update(context, new_share_instance['id'],
|
|
{'status': constants.STATUS_AVAILABLE})
|
|
|
|
helper.delete_instance_and_wait(context, share_instance)
|
|
|
|
return True
|
|
|
|
def _get_share_instance(self, context, share):
|
|
if isinstance(share, six.string_types):
|
|
id = share
|
|
else:
|
|
id = share.instance['id']
|
|
return self.db.share_instance_get(context, id, with_share_data=True)
|
|
|
|
@add_hooks
|
|
@utils.require_driver_initialized
|
|
def create_share_instance(self, context, share_instance_id,
|
|
request_spec=None, filter_properties=None,
|
|
snapshot_id=None):
|
|
"""Creates a share instance."""
|
|
context = context.elevated()
|
|
|
|
share_instance = self._get_share_instance(context, share_instance_id)
|
|
share_network_id = share_instance.get('share_network_id', None)
|
|
|
|
if not share_instance['availability_zone']:
|
|
share_instance = self.db.share_instance_update(
|
|
context, share_instance_id,
|
|
{'availability_zone': CONF.storage_availability_zone},
|
|
with_share_data=True
|
|
)
|
|
|
|
if share_network_id and not self.driver.driver_handles_share_servers:
|
|
self.db.share_instance_update(
|
|
context, share_instance_id, {'status': constants.STATUS_ERROR})
|
|
raise exception.ManilaException(_(
|
|
"Creation of share instance %s failed: driver does not expect "
|
|
"share-network to be provided with current "
|
|
"configuration.") % share_instance_id)
|
|
|
|
if snapshot_id is not None:
|
|
snapshot_ref = self.db.share_snapshot_get(context, snapshot_id)
|
|
parent_share_server_id = snapshot_ref['share']['share_server_id']
|
|
else:
|
|
snapshot_ref = None
|
|
parent_share_server_id = None
|
|
|
|
consistency_group_ref = None
|
|
if share_instance.get('consistency_group_id'):
|
|
consistency_group_ref = self.db.consistency_group_get(
|
|
context, share_instance['consistency_group_id'])
|
|
|
|
if share_network_id or parent_share_server_id:
|
|
try:
|
|
share_server, share_instance = (
|
|
self._provide_share_server_for_share(
|
|
context, share_network_id, share_instance,
|
|
snapshot=snapshot_ref,
|
|
consistency_group=consistency_group_ref
|
|
)
|
|
)
|
|
except Exception:
|
|
with excutils.save_and_reraise_exception():
|
|
error = _LE("Creation of share instance %s failed: "
|
|
"failed to get share server.")
|
|
LOG.error(error, share_instance_id)
|
|
self.db.share_instance_update(
|
|
context, share_instance_id,
|
|
{'status': constants.STATUS_ERROR}
|
|
)
|
|
else:
|
|
share_server = None
|
|
|
|
try:
|
|
if snapshot_ref:
|
|
export_locations = self.driver.create_share_from_snapshot(
|
|
context, share_instance, snapshot_ref.instance,
|
|
share_server=share_server)
|
|
else:
|
|
export_locations = self.driver.create_share(
|
|
context, share_instance, share_server=share_server)
|
|
|
|
self.db.share_export_locations_update(
|
|
context, share_instance['id'], export_locations)
|
|
|
|
except Exception as e:
|
|
with excutils.save_and_reraise_exception():
|
|
LOG.error(_LE("Share instance %s failed on creation."),
|
|
share_instance_id)
|
|
detail_data = getattr(e, 'detail_data', {})
|
|
|
|
def get_export_location(details):
|
|
if not isinstance(details, dict):
|
|
return None
|
|
return details.get('export_locations',
|
|
details.get('export_location'))
|
|
|
|
export_locations = get_export_location(detail_data)
|
|
|
|
if export_locations:
|
|
self.db.share_export_locations_update(
|
|
context, share_instance['id'], export_locations)
|
|
else:
|
|
LOG.warning(_LW('Share instance information in exception '
|
|
'can not be written to db because it '
|
|
'contains %s and it is not a dictionary.'),
|
|
detail_data)
|
|
self.db.share_instance_update(
|
|
context, share_instance_id,
|
|
{'status': constants.STATUS_ERROR}
|
|
)
|
|
else:
|
|
LOG.info(_LI("Share instance %s created successfully."),
|
|
share_instance_id)
|
|
self.db.share_instance_update(
|
|
context, share_instance_id,
|
|
{'status': constants.STATUS_AVAILABLE,
|
|
'launched_at': timeutils.utcnow()}
|
|
)
|
|
|
|
@add_hooks
|
|
@utils.require_driver_initialized
|
|
def manage_share(self, context, share_id, driver_options):
|
|
context = context.elevated()
|
|
share_ref = self.db.share_get(context, share_id)
|
|
share_instance = self._get_share_instance(context, share_ref)
|
|
project_id = share_ref['project_id']
|
|
|
|
try:
|
|
if self.driver.driver_handles_share_servers:
|
|
msg = _("Manage share is not supported for "
|
|
"driver_handles_share_servers=True mode.")
|
|
raise exception.InvalidDriverMode(driver_mode=msg)
|
|
|
|
driver_mode = share_types.get_share_type_extra_specs(
|
|
share_instance['share_type_id'],
|
|
constants.ExtraSpecs.DRIVER_HANDLES_SHARE_SERVERS)
|
|
|
|
if strutils.bool_from_string(driver_mode):
|
|
msg = _("%(mode)s != False") % {
|
|
'mode': constants.ExtraSpecs.DRIVER_HANDLES_SHARE_SERVERS
|
|
}
|
|
raise exception.ManageExistingShareTypeMismatch(reason=msg)
|
|
|
|
share_update = (
|
|
self.driver.manage_existing(share_instance, driver_options)
|
|
or {}
|
|
)
|
|
|
|
if not share_update.get('size'):
|
|
msg = _("Driver cannot calculate share size.")
|
|
raise exception.InvalidShare(reason=msg)
|
|
|
|
self._update_quota_usages(context, project_id, {
|
|
"shares": 1,
|
|
"gigabytes": share_update['size'],
|
|
})
|
|
|
|
share_update.update({
|
|
'status': constants.STATUS_AVAILABLE,
|
|
'launched_at': timeutils.utcnow(),
|
|
'availability_zone': CONF.storage_availability_zone,
|
|
})
|
|
|
|
# NOTE(vponomaryov): we should keep only those export locations
|
|
# that driver has calculated to avoid incompatibilities with one
|
|
# provided by user.
|
|
if 'export_locations' in share_update:
|
|
self.db.share_export_locations_update(
|
|
context, share_instance['id'],
|
|
share_update.pop('export_locations'),
|
|
delete=True)
|
|
|
|
self.db.share_update(context, share_id, share_update)
|
|
except Exception:
|
|
# NOTE(vponomaryov): set size as 1 because design expects size
|
|
# to be set, it also will allow us to handle delete/unmanage
|
|
# operations properly with this errored share according to quotas.
|
|
self.db.share_update(
|
|
context, share_id,
|
|
{'status': constants.STATUS_MANAGE_ERROR, 'size': 1})
|
|
raise
|
|
|
|
def _update_quota_usages(self, context, project_id, usages):
|
|
user_id = context.user_id
|
|
for resource, usage in usages.items():
|
|
try:
|
|
current_usage = self.db.quota_usage_get(
|
|
context, project_id, resource, user_id)
|
|
self.db.quota_usage_update(
|
|
context, project_id, user_id, resource,
|
|
in_use=current_usage['in_use'] + usage)
|
|
except exception.QuotaUsageNotFound:
|
|
self.db.quota_usage_create(context, project_id,
|
|
user_id, resource, usage)
|
|
|
|
@add_hooks
|
|
@utils.require_driver_initialized
|
|
def unmanage_share(self, context, share_id):
|
|
context = context.elevated()
|
|
share_ref = self.db.share_get(context, share_id)
|
|
share_instance = self._get_share_instance(context, share_ref)
|
|
share_server = self._get_share_server(context, share_ref)
|
|
project_id = share_ref['project_id']
|
|
|
|
def share_manage_set_error_status(msg, exception):
|
|
status = {'status': constants.STATUS_UNMANAGE_ERROR}
|
|
self.db.share_update(context, share_id, status)
|
|
LOG.error(msg, six.text_type(exception))
|
|
|
|
try:
|
|
if self.driver.driver_handles_share_servers:
|
|
msg = _("Unmanage share is not supported for "
|
|
"driver_handles_share_servers=True mode.")
|
|
raise exception.InvalidShare(reason=msg)
|
|
|
|
if share_server:
|
|
msg = _("Unmanage share is not supported for "
|
|
"shares with share servers.")
|
|
raise exception.InvalidShare(reason=msg)
|
|
|
|
self.driver.unmanage(share_instance)
|
|
|
|
except exception.InvalidShare as e:
|
|
share_manage_set_error_status(
|
|
_LE("Share can not be unmanaged: %s."), e)
|
|
return
|
|
|
|
try:
|
|
reservations = QUOTAS.reserve(context,
|
|
project_id=project_id,
|
|
shares=-1,
|
|
gigabytes=-share_ref['size'])
|
|
QUOTAS.commit(context, reservations, project_id=project_id)
|
|
except Exception as e:
|
|
# Note(imalinovskiy):
|
|
# Quota reservation errors here are not fatal, because
|
|
# unmanage is administrator API and he/she could update user
|
|
# quota usages later if it's required.
|
|
LOG.warning(_LW("Failed to update quota usages: %s."),
|
|
six.text_type(e))
|
|
|
|
if self.configuration.safe_get('unmanage_remove_access_rules'):
|
|
try:
|
|
self._remove_share_access_rules(context, share_ref,
|
|
share_instance, share_server)
|
|
except Exception as e:
|
|
share_manage_set_error_status(
|
|
_LE("Can not remove access rules of share: %s."), e)
|
|
return
|
|
|
|
self.db.share_instance_delete(context, share_instance['id'])
|
|
LOG.info(_LI("Share %s: unmanaged successfully."), share_id)
|
|
|
|
@add_hooks
|
|
@utils.require_driver_initialized
|
|
def delete_share_instance(self, context, share_instance_id):
|
|
"""Delete a share instance."""
|
|
context = context.elevated()
|
|
share_instance = self._get_share_instance(context, share_instance_id)
|
|
share = self.db.share_get(context, share_instance['share_id'])
|
|
share_server = self._get_share_server(context, share_instance)
|
|
|
|
try:
|
|
self._remove_share_access_rules(context, share, share_instance,
|
|
share_server)
|
|
self.driver.delete_share(context, share_instance,
|
|
share_server=share_server)
|
|
except Exception:
|
|
with excutils.save_and_reraise_exception():
|
|
self.db.share_instance_update(
|
|
context,
|
|
share_instance_id,
|
|
{'status': constants.STATUS_ERROR_DELETING})
|
|
|
|
self.db.share_instance_delete(context, share_instance_id)
|
|
LOG.info(_LI("Share instance %s: deleted successfully."),
|
|
share_instance_id)
|
|
|
|
if CONF.delete_share_server_with_last_share:
|
|
share_server = self._get_share_server(context, share_instance)
|
|
if share_server and len(share_server.share_instances) == 0:
|
|
LOG.debug("Scheduled deletion of share-server "
|
|
"with id '%s' automatically by "
|
|
"deletion of last share.", share_server['id'])
|
|
self.delete_share_server(context, share_server)
|
|
|
|
@periodic_task.periodic_task(spacing=600)
|
|
@utils.require_driver_initialized
|
|
def delete_free_share_servers(self, ctxt):
|
|
if not (self.driver.driver_handles_share_servers and
|
|
self.configuration.automatic_share_server_cleanup):
|
|
return
|
|
LOG.info(_LI("Check for unused share servers to delete."))
|
|
updated_before = timeutils.utcnow() - datetime.timedelta(
|
|
minutes=self.configuration.unused_share_server_cleanup_interval)
|
|
servers = self.db.share_server_get_all_unused_deletable(ctxt,
|
|
self.host,
|
|
updated_before)
|
|
for server in servers:
|
|
self.delete_share_server(ctxt, server)
|
|
|
|
def _remove_share_access_rules(self, context, share_ref, share_instance,
|
|
share_server):
|
|
rules = self.db.share_access_get_all_for_share(
|
|
context, share_ref['id'])
|
|
|
|
for access_ref in rules:
|
|
self._deny_access(context, access_ref,
|
|
share_instance, share_server)
|
|
|
|
@add_hooks
|
|
@utils.require_driver_initialized
|
|
def create_snapshot(self, context, share_id, snapshot_id):
|
|
"""Create snapshot for share."""
|
|
snapshot_ref = self.db.share_snapshot_get(context, snapshot_id)
|
|
share_server = self._get_share_server(context,
|
|
snapshot_ref['share'])
|
|
snapshot_instance = self.db.share_snapshot_instance_get(
|
|
context, snapshot_ref.instance['id'], with_share_data=True
|
|
)
|
|
snapshot_instance_id = snapshot_instance['id']
|
|
|
|
try:
|
|
model_update = self.driver.create_snapshot(
|
|
context, snapshot_instance, share_server=share_server)
|
|
|
|
if model_update:
|
|
model_dict = model_update.to_dict()
|
|
self.db.share_snapshot_instance_update(
|
|
context, snapshot_instance_id, model_dict)
|
|
|
|
except Exception:
|
|
with excutils.save_and_reraise_exception():
|
|
self.db.share_snapshot_instance_update(
|
|
context,
|
|
snapshot_instance_id,
|
|
{'status': constants.STATUS_ERROR})
|
|
|
|
self.db.share_snapshot_instance_update(
|
|
context,
|
|
snapshot_instance_id,
|
|
{'status': constants.STATUS_AVAILABLE,
|
|
'progress': '100%'}
|
|
)
|
|
return snapshot_id
|
|
|
|
@add_hooks
|
|
@utils.require_driver_initialized
|
|
def delete_snapshot(self, context, snapshot_id):
|
|
"""Delete share snapshot."""
|
|
context = context.elevated()
|
|
snapshot_ref = self.db.share_snapshot_get(context, snapshot_id)
|
|
|
|
share_server = self._get_share_server(context,
|
|
snapshot_ref['share'])
|
|
snapshot_instance = self.db.share_snapshot_instance_get(
|
|
context, snapshot_ref.instance['id'], with_share_data=True
|
|
)
|
|
snapshot_instance_id = snapshot_instance['id']
|
|
|
|
if context.project_id != snapshot_ref['project_id']:
|
|
project_id = snapshot_ref['project_id']
|
|
else:
|
|
project_id = context.project_id
|
|
|
|
try:
|
|
self.driver.delete_snapshot(context, snapshot_instance,
|
|
share_server=share_server)
|
|
except exception.ShareSnapshotIsBusy:
|
|
self.db.share_snapshot_instance_update(
|
|
context,
|
|
snapshot_instance_id,
|
|
{'status': constants.STATUS_AVAILABLE})
|
|
except Exception:
|
|
with excutils.save_and_reraise_exception():
|
|
self.db.share_snapshot_instance_update(
|
|
context,
|
|
snapshot_instance_id,
|
|
{'status': constants.STATUS_ERROR_DELETING})
|
|
else:
|
|
self.db.share_snapshot_destroy(context, snapshot_id)
|
|
try:
|
|
reservations = QUOTAS.reserve(
|
|
context, project_id=project_id, snapshots=-1,
|
|
snapshot_gigabytes=-snapshot_ref['size'])
|
|
except Exception:
|
|
reservations = None
|
|
LOG.exception(_LE("Failed to update usages deleting snapshot"))
|
|
|
|
if reservations:
|
|
QUOTAS.commit(context, reservations, project_id=project_id)
|
|
|
|
@add_hooks
|
|
@utils.require_driver_initialized
|
|
def allow_access(self, context, share_instance_id, access_id):
|
|
"""Allow access to some share instance."""
|
|
access_mapping = self.db.share_instance_access_get(context, access_id,
|
|
share_instance_id)
|
|
|
|
if access_mapping['state'] != access_mapping.STATE_NEW:
|
|
return
|
|
|
|
try:
|
|
access_ref = self.db.share_access_get(context, access_id)
|
|
share_instance = self.db.share_instance_get(
|
|
context, share_instance_id, with_share_data=True)
|
|
share_server = self._get_share_server(context, share_instance)
|
|
self.driver.allow_access(context, share_instance, access_ref,
|
|
share_server=share_server)
|
|
self.db.share_instance_access_update_state(
|
|
context, access_mapping['id'], access_mapping.STATE_ACTIVE)
|
|
except Exception:
|
|
with excutils.save_and_reraise_exception():
|
|
self.db.share_instance_access_update_state(
|
|
context, access_mapping['id'], access_mapping.STATE_ERROR)
|
|
|
|
LOG.info(_LI("'%(access_to)s' has been successfully allowed "
|
|
"'%(access_level)s' access on share instance "
|
|
"%(share_instance_id)s."),
|
|
{'access_to': access_ref['access_to'],
|
|
'access_level': access_ref['access_level'],
|
|
'share_instance_id': share_instance_id})
|
|
|
|
@add_hooks
|
|
@utils.require_driver_initialized
|
|
def deny_access(self, context, share_instance_id, access_id):
|
|
"""Deny access to some share."""
|
|
access_ref = self.db.share_access_get(context, access_id)
|
|
share_instance = self.db.share_instance_get(
|
|
context, share_instance_id, with_share_data=True)
|
|
share_server = self._get_share_server(context, share_instance)
|
|
self._deny_access(context, access_ref, share_instance, share_server)
|
|
|
|
LOG.info(_LI("'(access_to)s' has been successfully denied access to "
|
|
"share instance %(share_instance_id)s."),
|
|
{'access_to': access_ref['access_to'],
|
|
'share_instance_id': share_instance_id})
|
|
|
|
def _deny_access(self, context, access_ref, share_instance, share_server):
|
|
access_mapping = self.db.share_instance_access_get(
|
|
context, access_ref['id'], share_instance['id'])
|
|
try:
|
|
self.driver.deny_access(context, share_instance, access_ref,
|
|
share_server=share_server)
|
|
self.db.share_instance_access_delete(context, access_mapping['id'])
|
|
except Exception:
|
|
with excutils.save_and_reraise_exception():
|
|
self.db.share_instance_access_update_state(
|
|
context, access_mapping['id'], access_mapping.STATE_ERROR)
|
|
|
|
@periodic_task.periodic_task(spacing=CONF.periodic_interval)
|
|
@utils.require_driver_initialized
|
|
def _report_driver_status(self, context):
|
|
LOG.info(_LI('Updating share status'))
|
|
share_stats = self.driver.get_share_stats(refresh=True)
|
|
if not share_stats:
|
|
return
|
|
|
|
if self.driver.driver_handles_share_servers:
|
|
share_stats['server_pools_mapping'] = (
|
|
self._get_servers_pool_mapping(context)
|
|
)
|
|
|
|
self.update_service_capabilities(share_stats)
|
|
|
|
@periodic_task.periodic_task(spacing=CONF.periodic_hooks_interval)
|
|
@utils.require_driver_initialized
|
|
def _execute_periodic_hook(self, context):
|
|
"""Executes periodic-based hooks."""
|
|
# TODO(vponomaryov): add also access rules and share servers
|
|
share_instances = (
|
|
self.db.share_instances_get_all_by_host(
|
|
context=context, host=self.host))
|
|
periodic_hook_data = self.driver.get_periodic_hook_data(
|
|
context=context, share_instances=share_instances)
|
|
for hook in self.hooks:
|
|
hook.execute_periodic_hook(
|
|
context=context, periodic_hook_data=periodic_hook_data)
|
|
|
|
def _get_servers_pool_mapping(self, context):
|
|
"""Get info about relationships between pools and share_servers."""
|
|
share_servers = self.db.share_server_get_all_by_host(context,
|
|
self.host)
|
|
return {server['id']: self.driver.get_share_server_pools(server)
|
|
for server in share_servers}
|
|
|
|
@add_hooks
|
|
@utils.require_driver_initialized
|
|
def publish_service_capabilities(self, context):
|
|
"""Collect driver status and then publish it."""
|
|
self._report_driver_status(context)
|
|
self._publish_service_capabilities(context)
|
|
|
|
def _form_server_setup_info(self, context, share_server, share_network):
|
|
# Network info is used by driver for setting up share server
|
|
# and getting server info on share creation.
|
|
network_allocations = self.db.network_allocations_get_for_share_server(
|
|
context, share_server['id'])
|
|
network_info = {
|
|
'server_id': share_server['id'],
|
|
'segmentation_id': share_network['segmentation_id'],
|
|
'cidr': share_network['cidr'],
|
|
'neutron_net_id': share_network['neutron_net_id'],
|
|
'neutron_subnet_id': share_network['neutron_subnet_id'],
|
|
'nova_net_id': share_network['nova_net_id'],
|
|
'security_services': share_network['security_services'],
|
|
'network_allocations': network_allocations,
|
|
'backend_details': share_server.get('backend_details'),
|
|
'network_type': share_network['network_type'],
|
|
}
|
|
return network_info
|
|
|
|
def _setup_server(self, context, share_server, metadata=None):
|
|
try:
|
|
share_network = self.db.share_network_get(
|
|
context, share_server['share_network_id'])
|
|
self.driver.allocate_network(context, share_server, share_network)
|
|
|
|
# Get share_network again in case it was updated.
|
|
share_network = self.db.share_network_get(
|
|
context, share_server['share_network_id'])
|
|
network_info = self._form_server_setup_info(
|
|
context, share_server, share_network)
|
|
self._validate_segmentation_id(network_info)
|
|
|
|
# NOTE(vponomaryov): Save security services data to share server
|
|
# details table to remove dependency from share network after
|
|
# creation operation. It will allow us to delete share server and
|
|
# share network separately without dependency on each other.
|
|
for security_service in network_info['security_services']:
|
|
ss_type = security_service['type']
|
|
data = {
|
|
'name': security_service['name'],
|
|
'domain': security_service['domain'],
|
|
'server': security_service['server'],
|
|
'dns_ip': security_service['dns_ip'],
|
|
'user': security_service['user'],
|
|
'type': ss_type,
|
|
'password': security_service['password'],
|
|
}
|
|
self.db.share_server_backend_details_set(
|
|
context, share_server['id'],
|
|
{'security_service_' + ss_type: jsonutils.dumps(data)})
|
|
|
|
server_info = self.driver.setup_server(
|
|
network_info, metadata=metadata)
|
|
|
|
if server_info and isinstance(server_info, dict):
|
|
self.db.share_server_backend_details_set(
|
|
context, share_server['id'], server_info)
|
|
return self.db.share_server_update(
|
|
context, share_server['id'],
|
|
{'status': constants.STATUS_ACTIVE})
|
|
except Exception as e:
|
|
with excutils.save_and_reraise_exception():
|
|
try:
|
|
details = getattr(e, 'detail_data', {})
|
|
if not isinstance(details, dict):
|
|
msg = (_("Invalid detail_data '%s'")
|
|
% six.text_type(details))
|
|
raise exception.Invalid(msg)
|
|
|
|
server_details = details.get('server_details')
|
|
|
|
if not isinstance(server_details, dict):
|
|
msg = (_("Invalid server_details '%s'")
|
|
% six.text_type(server_details))
|
|
raise exception.Invalid(msg)
|
|
|
|
invalid_details = []
|
|
|
|
for key, value in server_details.items():
|
|
try:
|
|
self.db.share_server_backend_details_set(
|
|
context, share_server['id'], {key: value})
|
|
except Exception:
|
|
invalid_details.append("%(key)s: %(value)s" % {
|
|
'key': six.text_type(key),
|
|
'value': six.text_type(value)
|
|
})
|
|
|
|
if invalid_details:
|
|
msg = (_("Following server details are not valid:\n%s")
|
|
% six.text_type('\n'.join(invalid_details)))
|
|
raise exception.Invalid(msg)
|
|
|
|
except Exception as e:
|
|
LOG.warning(_LW('Server Information in '
|
|
'exception can not be written to db : %s '
|
|
), six.text_type(e))
|
|
finally:
|
|
self.db.share_server_update(
|
|
context, share_server['id'],
|
|
{'status': constants.STATUS_ERROR})
|
|
self.driver.deallocate_network(context, share_server['id'])
|
|
|
|
def _validate_segmentation_id(self, network_info):
|
|
"""Raises exception if the segmentation type is incorrect."""
|
|
if (network_info['network_type'] in (None, 'flat') and
|
|
network_info['segmentation_id']):
|
|
msg = _('A segmentation ID %(vlan_id)s was specified but can not '
|
|
'be used with a network of type %(seg_type)s; the '
|
|
'segmentation ID option must be omitted or set to 0')
|
|
raise exception.NetworkBadConfigurationException(
|
|
reason=msg % {'vlan_id': network_info['segmentation_id'],
|
|
'seg_type': network_info['network_type']})
|
|
elif (network_info['network_type'] == 'vlan'
|
|
and (network_info['segmentation_id'] is None
|
|
or int(network_info['segmentation_id']) > 4094
|
|
or int(network_info['segmentation_id']) < 1)):
|
|
msg = _('A segmentation ID %s was specified but is not valid for '
|
|
'a VLAN network type; the segmentation ID must be an '
|
|
'integer value in the range of [1,4094]')
|
|
raise exception.NetworkBadConfigurationException(
|
|
reason=msg % network_info['segmentation_id'])
|
|
elif (network_info['network_type'] == 'vxlan'
|
|
and (network_info['segmentation_id'] is None
|
|
or int(network_info['segmentation_id']) > 16777215
|
|
or int(network_info['segmentation_id']) < 1)):
|
|
msg = _('A segmentation ID %s was specified but is not valid for '
|
|
'a VXLAN network type; the segmentation ID must be an '
|
|
'integer value in the range of [1,16777215]')
|
|
raise exception.NetworkBadConfigurationException(
|
|
reason=msg % network_info['segmentation_id'])
|
|
elif (network_info['network_type'] == 'gre'
|
|
and (network_info['segmentation_id'] is None
|
|
or int(network_info['segmentation_id']) > 4294967295
|
|
or int(network_info['segmentation_id']) < 1)):
|
|
msg = _('A segmentation ID %s was specified but is not valid for '
|
|
'a GRE network type; the segmentation ID must be an '
|
|
'integer value in the range of [1, 4294967295]')
|
|
raise exception.NetworkBadConfigurationException(
|
|
reason=msg % network_info['segmentation_id'])
|
|
|
|
@add_hooks
|
|
@utils.require_driver_initialized
|
|
def delete_share_server(self, context, share_server):
|
|
|
|
@utils.synchronized(
|
|
"share_manager_%s" % share_server['share_network_id'])
|
|
def _teardown_server():
|
|
# NOTE(vponomaryov): Verify that there are no dependent shares.
|
|
# Without this verification we can get here exception in next case:
|
|
# share-server-delete API was called after share creation scheduled
|
|
# and share_server reached ACTIVE status, but before update
|
|
# of share_server_id field for share. If so, after lock realese
|
|
# this method starts executing when amount of dependent shares
|
|
# has been changed.
|
|
server_id = share_server['id']
|
|
shares = self.db.share_instances_get_all_by_share_server(
|
|
context, server_id)
|
|
|
|
if shares:
|
|
raise exception.ShareServerInUse(share_server_id=server_id)
|
|
|
|
server_details = share_server['backend_details']
|
|
|
|
self.db.share_server_update(context, server_id,
|
|
{'status': constants.STATUS_DELETING})
|
|
try:
|
|
LOG.debug("Deleting share server '%s'", server_id)
|
|
security_services = []
|
|
for ss_name in constants.SECURITY_SERVICES_ALLOWED_TYPES:
|
|
ss = server_details.get('security_service_' + ss_name)
|
|
if ss:
|
|
security_services.append(jsonutils.loads(ss))
|
|
|
|
self.driver.teardown_server(
|
|
server_details=server_details,
|
|
security_services=security_services)
|
|
except Exception:
|
|
with excutils.save_and_reraise_exception():
|
|
LOG.error(
|
|
_LE("Share server '%s' failed on deletion."),
|
|
server_id)
|
|
self.db.share_server_update(
|
|
context, server_id, {'status': constants.STATUS_ERROR})
|
|
else:
|
|
self.db.share_server_delete(context, share_server['id'])
|
|
|
|
_teardown_server()
|
|
LOG.info(
|
|
_LI("Share server '%s' has been deleted successfully."),
|
|
share_server['id'])
|
|
self.driver.deallocate_network(context, share_server['id'])
|
|
|
|
def _verify_unused_share_server_cleanup_interval(self):
|
|
if not 10 <= self.configuration.\
|
|
unused_share_server_cleanup_interval <= 60:
|
|
raise exception.InvalidParameterValue(
|
|
"Option unused_share_server_cleanup_interval should be "
|
|
"between 10 minutes and 1 hour.")
|
|
|
|
@add_hooks
|
|
@utils.require_driver_initialized
|
|
def extend_share(self, context, share_id, new_size, reservations):
|
|
context = context.elevated()
|
|
share = self.db.share_get(context, share_id)
|
|
share_instance = self._get_share_instance(context, share)
|
|
share_server = self._get_share_server(context, share)
|
|
project_id = share['project_id']
|
|
|
|
try:
|
|
self.driver.extend_share(
|
|
share_instance, new_size, share_server=share_server)
|
|
except Exception as e:
|
|
LOG.exception(_LE("Extend share failed."), resource=share)
|
|
|
|
try:
|
|
self.db.share_update(
|
|
context, share['id'],
|
|
{'status': constants.STATUS_EXTENDING_ERROR}
|
|
)
|
|
raise exception.ShareExtendingError(
|
|
reason=six.text_type(e), share_id=share_id)
|
|
finally:
|
|
QUOTAS.rollback(context, reservations, project_id=project_id)
|
|
|
|
QUOTAS.commit(context, reservations, project_id=project_id)
|
|
|
|
share_update = {
|
|
'size': int(new_size),
|
|
# NOTE(u_glide): translation to lower case should be removed in
|
|
# a row with usage of upper case of share statuses in all places
|
|
'status': constants.STATUS_AVAILABLE.lower()
|
|
}
|
|
share = self.db.share_update(context, share['id'], share_update)
|
|
|
|
LOG.info(_LI("Extend share completed successfully."), resource=share)
|
|
|
|
@add_hooks
|
|
@utils.require_driver_initialized
|
|
def shrink_share(self, context, share_id, new_size):
|
|
context = context.elevated()
|
|
share = self.db.share_get(context, share_id)
|
|
share_instance = self._get_share_instance(context, share)
|
|
share_server = self._get_share_server(context, share)
|
|
project_id = share['project_id']
|
|
new_size = int(new_size)
|
|
|
|
def error_occurred(exc, msg, status=constants.STATUS_SHRINKING_ERROR):
|
|
LOG.exception(msg, resource=share)
|
|
self.db.share_update(context, share['id'], {'status': status})
|
|
|
|
raise exception.ShareShrinkingError(
|
|
reason=six.text_type(exc), share_id=share_id)
|
|
|
|
reservations = None
|
|
|
|
try:
|
|
size_decrease = int(share['size']) - new_size
|
|
reservations = QUOTAS.reserve(context,
|
|
project_id=share['project_id'],
|
|
gigabytes=-size_decrease)
|
|
except Exception as e:
|
|
error_occurred(
|
|
e, _LE("Failed to update quota on share shrinking."))
|
|
|
|
try:
|
|
self.driver.shrink_share(
|
|
share_instance, new_size, share_server=share_server)
|
|
# NOTE(u_glide): Replace following except block by error notification
|
|
# when Manila has such mechanism. It's possible because drivers
|
|
# shouldn't shrink share when this validation error occurs.
|
|
except Exception as e:
|
|
if isinstance(e, exception.ShareShrinkingPossibleDataLoss):
|
|
msg = _LE("Shrink share failed due to possible data loss.")
|
|
status = constants.STATUS_SHRINKING_POSSIBLE_DATA_LOSS_ERROR
|
|
error_params = {'msg': msg, 'status': status}
|
|
else:
|
|
error_params = {'msg': _LE("Shrink share failed.")}
|
|
|
|
try:
|
|
error_occurred(e, **error_params)
|
|
finally:
|
|
QUOTAS.rollback(context, reservations, project_id=project_id)
|
|
|
|
QUOTAS.commit(context, reservations, project_id=project_id)
|
|
|
|
share_update = {
|
|
'size': new_size,
|
|
'status': constants.STATUS_AVAILABLE
|
|
}
|
|
share = self.db.share_update(context, share['id'], share_update)
|
|
|
|
LOG.info(_LI("Shrink share completed successfully."), resource=share)
|
|
|
|
@utils.require_driver_initialized
|
|
def create_consistency_group(self, context, cg_id):
|
|
context = context.elevated()
|
|
group_ref = self.db.consistency_group_get(context, cg_id)
|
|
group_ref['host'] = self.host
|
|
shares = self.db.share_instances_get_all_by_consistency_group_id(
|
|
context, cg_id)
|
|
|
|
source_cgsnapshot_id = group_ref.get("source_cgsnapshot_id")
|
|
snap_ref = None
|
|
parent_share_server_id = None
|
|
if source_cgsnapshot_id:
|
|
snap_ref = self.db.cgsnapshot_get(context, source_cgsnapshot_id)
|
|
for member in snap_ref['cgsnapshot_members']:
|
|
member['share'] = self.db.share_instance_get(
|
|
context, member['share_instance_id'], with_share_data=True)
|
|
member['share_id'] = member['share_instance_id']
|
|
if 'consistency_group' in snap_ref:
|
|
parent_share_server_id = snap_ref['consistency_group'][
|
|
'share_server_id']
|
|
|
|
status = constants.STATUS_AVAILABLE
|
|
model_update = False
|
|
|
|
share_network_id = group_ref.get('share_network_id', None)
|
|
share_server = None
|
|
|
|
if parent_share_server_id and self.driver.driver_handles_share_servers:
|
|
share_server = self.db.share_server_get(context,
|
|
parent_share_server_id)
|
|
share_network_id = share_server['share_network_id']
|
|
|
|
if share_network_id and not self.driver.driver_handles_share_servers:
|
|
self.db.consistency_group_update(
|
|
context, cg_id, {'status': constants.STATUS_ERROR})
|
|
msg = _("Driver does not expect share-network to be provided "
|
|
"with current configuration.")
|
|
raise exception.InvalidInput(reason=msg)
|
|
|
|
if not share_server and share_network_id:
|
|
try:
|
|
share_server, group_ref = self._provide_share_server_for_cg(
|
|
context, share_network_id, group_ref, cgsnapshot=snap_ref
|
|
)
|
|
except Exception:
|
|
with excutils.save_and_reraise_exception():
|
|
LOG.error(_LE("Failed to get share server"
|
|
" for consistency group creation."))
|
|
self.db.consistency_group_update(
|
|
context, cg_id, {'status': constants.STATUS_ERROR})
|
|
|
|
try:
|
|
# TODO(ameade): Add notification for create.start
|
|
LOG.info(_LI("Consistency group %s: creating"), cg_id)
|
|
|
|
model_update, share_update_list = None, None
|
|
|
|
group_ref['shares'] = shares
|
|
if snap_ref:
|
|
model_update, share_update_list = (
|
|
self.driver.create_consistency_group_from_cgsnapshot(
|
|
context, group_ref, snap_ref,
|
|
share_server=share_server))
|
|
else:
|
|
model_update = self.driver.create_consistency_group(
|
|
context, group_ref, share_server=share_server)
|
|
|
|
if model_update:
|
|
group_ref = self.db.consistency_group_update(context,
|
|
group_ref['id'],
|
|
model_update)
|
|
|
|
if share_update_list:
|
|
for share in share_update_list:
|
|
values = copy.deepcopy(share)
|
|
values.pop('id')
|
|
export_locations = values.pop('export_locations')
|
|
self.db.share_instance_update(context, share['id'], values)
|
|
self.db.share_export_locations_update(context,
|
|
share['id'],
|
|
export_locations)
|
|
|
|
except Exception:
|
|
with excutils.save_and_reraise_exception():
|
|
self.db.consistency_group_update(
|
|
context,
|
|
group_ref['id'],
|
|
{'status': constants.STATUS_ERROR})
|
|
for share in shares:
|
|
self.db.share_instance_update(
|
|
context, share['id'],
|
|
{'status': constants.STATUS_ERROR})
|
|
LOG.error(_LE("Consistency group %s: create failed"), cg_id)
|
|
|
|
now = timeutils.utcnow()
|
|
for share in shares:
|
|
self.db.share_instance_update(
|
|
context, share['id'], {'status': constants.STATUS_AVAILABLE})
|
|
self.db.consistency_group_update(context,
|
|
group_ref['id'],
|
|
{'status': status,
|
|
'created_at': now})
|
|
LOG.info(_LI("Consistency group %s: created successfully"), cg_id)
|
|
|
|
# TODO(ameade): Add notification for create.end
|
|
|
|
return group_ref['id']
|
|
|
|
@utils.require_driver_initialized
|
|
def delete_consistency_group(self, context, cg_id):
|
|
context = context.elevated()
|
|
group_ref = self.db.consistency_group_get(context, cg_id)
|
|
group_ref['host'] = self.host
|
|
group_ref['shares'] = (
|
|
self.db.share_instances_get_all_by_consistency_group_id(
|
|
context, cg_id))
|
|
|
|
model_update = False
|
|
|
|
# TODO(ameade): Add notification for delete.start
|
|
|
|
try:
|
|
LOG.info(_LI("Consistency group %s: deleting"), cg_id)
|
|
share_server = None
|
|
if group_ref.get('share_server_id'):
|
|
share_server = self.db.share_server_get(
|
|
context, group_ref['share_server_id'])
|
|
model_update = self.driver.delete_consistency_group(
|
|
context, group_ref, share_server=share_server)
|
|
|
|
if model_update:
|
|
group_ref = self.db.consistency_group_update(
|
|
context, group_ref['id'], model_update)
|
|
|
|
except Exception:
|
|
with excutils.save_and_reraise_exception():
|
|
self.db.consistency_group_update(
|
|
context,
|
|
group_ref['id'],
|
|
{'status': constants.STATUS_ERROR})
|
|
LOG.error(_LE("Consistency group %s: delete failed"),
|
|
group_ref['id'])
|
|
|
|
self.db.consistency_group_destroy(context,
|
|
cg_id)
|
|
LOG.info(_LI("Consistency group %s: deleted successfully"),
|
|
cg_id)
|
|
|
|
# TODO(ameade): Add notification for delete.end
|
|
|
|
@utils.require_driver_initialized
|
|
def create_cgsnapshot(self, context, cgsnapshot_id):
|
|
context = context.elevated()
|
|
snap_ref = self.db.cgsnapshot_get(context, cgsnapshot_id)
|
|
for member in snap_ref['cgsnapshot_members']:
|
|
member['share'] = self.db.share_instance_get(
|
|
context, member['share_instance_id'], with_share_data=True)
|
|
member['share_id'] = member['share_instance_id']
|
|
|
|
status = constants.STATUS_AVAILABLE
|
|
snapshot_update = False
|
|
|
|
try:
|
|
LOG.info(_LI("Consistency group snapshot %s: creating"),
|
|
cgsnapshot_id)
|
|
share_server = None
|
|
if snap_ref['consistency_group'].get('share_server_id'):
|
|
share_server = self.db.share_server_get(
|
|
context, snap_ref['consistency_group']['share_server_id'])
|
|
snapshot_update, member_update_list = (
|
|
self.driver.create_cgsnapshot(context, snap_ref,
|
|
share_server=share_server))
|
|
|
|
if member_update_list:
|
|
snapshot_update = snapshot_update or {}
|
|
snapshot_update['cgsnapshot_members'] = []
|
|
for update in (member_update_list or []):
|
|
snapshot_update['cgsnapshot_members'].append(update)
|
|
|
|
if snapshot_update:
|
|
snap_ref = self.db.cgsnapshot_update(
|
|
context, snap_ref['id'], snapshot_update)
|
|
|
|
except Exception:
|
|
with excutils.save_and_reraise_exception():
|
|
self.db.cgsnapshot_update(
|
|
context,
|
|
snap_ref['id'],
|
|
{'status': constants.STATUS_ERROR})
|
|
LOG.error(_LE("Consistency group snapshot %s: create failed"),
|
|
cgsnapshot_id)
|
|
|
|
now = timeutils.utcnow()
|
|
for member in (snap_ref.get('cgsnapshot_members') or []):
|
|
update = {'status': status, 'created_at': now}
|
|
self.db.cgsnapshot_member_update(context, member['id'],
|
|
update)
|
|
|
|
self.db.cgsnapshot_update(context,
|
|
snap_ref['id'],
|
|
{'status': status,
|
|
'created_at': now})
|
|
LOG.info(_LI("Consistency group snapshot %s: created successfully"),
|
|
cgsnapshot_id)
|
|
|
|
return snap_ref['id']
|
|
|
|
@utils.require_driver_initialized
|
|
def delete_cgsnapshot(self, context, cgsnapshot_id):
|
|
context = context.elevated()
|
|
snap_ref = self.db.cgsnapshot_get(context, cgsnapshot_id)
|
|
for member in snap_ref['cgsnapshot_members']:
|
|
member['share'] = self.db.share_instance_get(
|
|
context, member['share_instance_id'], with_share_data=True)
|
|
member['share_id'] = member['share_instance_id']
|
|
|
|
snapshot_update = False
|
|
|
|
try:
|
|
LOG.info(_LI("Consistency group snapshot %s: deleting"),
|
|
cgsnapshot_id)
|
|
|
|
share_server = None
|
|
if snap_ref['consistency_group'].get('share_server_id'):
|
|
share_server = self.db.share_server_get(
|
|
context, snap_ref['consistency_group']['share_server_id'])
|
|
|
|
snapshot_update, member_update_list = (
|
|
self.driver.delete_cgsnapshot(context, snap_ref,
|
|
share_server=share_server))
|
|
|
|
if member_update_list:
|
|
snapshot_update = snapshot_update or {}
|
|
snapshot_update['cgsnapshot_members'] = []
|
|
for update in (member_update_list or []):
|
|
snapshot_update['cgsnapshot_members'].append(update)
|
|
|
|
if snapshot_update:
|
|
snap_ref = self.db.cgsnapshot_update(
|
|
context, snap_ref['id'], snapshot_update)
|
|
|
|
except Exception:
|
|
with excutils.save_and_reraise_exception():
|
|
self.db.cgsnapshot_update(
|
|
context,
|
|
snap_ref['id'],
|
|
{'status': constants.STATUS_ERROR})
|
|
LOG.error(_LE("Consistency group snapshot %s: delete failed"),
|
|
snap_ref['name'])
|
|
|
|
self.db.cgsnapshot_destroy(context, cgsnapshot_id)
|
|
|
|
LOG.info(_LI("Consistency group snapshot %s: deleted successfully"),
|
|
cgsnapshot_id)
|