1278 lines
50 KiB
Python
1278 lines
50 KiB
Python
# Copyright (c) 2014 NetApp, Inc.
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# Copyright (c) 2015 Tom Barron.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""
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NetApp specific NAS storage driver. Supports NFS and CIFS protocols.
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This driver requires ONTAP Cluster mode storage system
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with installed CIFS and NFS licenses.
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"""
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import abc
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import copy
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import hashlib
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import re
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from oslo_config import cfg
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from oslo_log import log
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from oslo_utils import excutils
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from oslo_utils import units
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import six
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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.share import driver
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from manila.share.drivers.netapp import api as naapi
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from manila.share.drivers.netapp import utils as na_utils
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from manila import utils
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NETAPP_NAS_OPTS = [
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cfg.StrOpt('netapp_storage_family',
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default='ontap_cluster',
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help=('The storage family type used on the storage system; '
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'valid values include ontap_cluster for using '
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'clustered Data ONTAP.')),
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cfg.StrOpt('netapp_nas_login',
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default='admin',
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help='User name for the ONTAP controller.'),
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cfg.StrOpt('netapp_nas_password',
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help='Password for the ONTAP controller.',
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secret=True),
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cfg.StrOpt('netapp_nas_server_hostname',
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help='Hostname for the ONTAP controller.'),
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cfg.StrOpt('netapp_nas_transport_type',
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default='http',
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help='Transport type protocol.'),
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cfg.StrOpt('netapp_nas_volume_name_template',
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help='Netapp volume name template.',
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default='share_%(share_id)s'),
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cfg.StrOpt('netapp_vserver_name_template',
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default='os_%s',
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help='Name template to use for new vserver.'),
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cfg.StrOpt('netapp_lif_name_template',
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default='os_%(net_allocation_id)s',
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help='Lif name template'),
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cfg.StrOpt('netapp_aggregate_name_search_pattern',
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default='(.*)',
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help='Pattern for searching available aggregates '
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'for provisioning.'),
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cfg.StrOpt('netapp_root_volume_aggregate',
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help='Name of aggregate to create root volume on.'),
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cfg.StrOpt('netapp_root_volume_name',
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default='root',
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help='Root volume name.'),
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cfg.StrOpt('netapp_trace_flags',
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default=None,
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help='Comma-separated list of options that control which '
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'trace info is written to the debug logs. Values '
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'include method and api.'),
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]
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CONF = cfg.CONF
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CONF.register_opts(NETAPP_NAS_OPTS)
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LOG = log.getLogger(__name__)
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def ensure_vserver(f):
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def wrap(self, *args, **kwargs):
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server = kwargs.get('share_server')
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if not server:
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# For now cmode driver does not support flat networking.
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raise exception.NetAppException(_('Share server is not provided.'))
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vserver_name = server['backend_details'].get('vserver_name') if \
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server.get('backend_details') else None
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if not vserver_name:
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msg = _('Vserver name is absent in backend details. Please '
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'check whether vserver was created properly or not.')
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raise exception.NetAppException(msg)
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if not self._vserver_exists(vserver_name):
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raise exception.VserverUnavailable(vserver=vserver_name)
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return f(self, *args, **kwargs)
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return wrap
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class NetAppApiClient(object):
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def __init__(self, version, vserver=None, *args, **kwargs):
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self.configuration = kwargs.get('configuration', None)
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if not self.configuration:
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raise exception.NetAppException(_("NetApp configuration missing."))
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self._client = naapi.NaServer(
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host=self.configuration.netapp_nas_server_hostname,
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username=self.configuration.netapp_nas_login,
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password=self.configuration.netapp_nas_password,
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transport_type=self.configuration.netapp_nas_transport_type,
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trace=na_utils.TRACE_API
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)
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self._client.set_api_version(*version)
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if vserver:
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self._client.set_vserver(vserver)
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def send_request(self, api_name, args=None):
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"""Sends request to Ontapi."""
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elem = naapi.NaElement(api_name)
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if args:
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elem.translate_struct(args)
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LOG.debug("NaElement: %s", elem.to_string(pretty=True))
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return self._client.invoke_successfully(elem, enable_tunneling=True)
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class NetAppClusteredShareDriver(driver.ShareDriver):
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"""NetApp specific ONTAP Cluster mode driver.
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Supports NFS and CIFS protocols.
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Uses Ontap devices as backend to create shares
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and snapshots.
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Sets up vServer for each share_network.
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Connectivity between storage and client VM is organized
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by plugging vServer's network interfaces into neutron subnet
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that VM is using.
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"""
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def __init__(self, db, *args, **kwargs):
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super(NetAppClusteredShareDriver, self).__init__(True, *args, **kwargs)
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self._app_version = na_utils.OpenStackInfo().info()
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LOG.info(_LI("OpenStack OS Version Info: %(info)s") % {
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'info': self._app_version})
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self.db = db
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self._helpers = None
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self._licenses = []
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self._client = None
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if self.configuration:
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self.configuration.append_config_values(NETAPP_NAS_OPTS)
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self.api_version = (1, 15)
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self.backend_name = self.configuration.safe_get(
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'share_backend_name') or "NetApp_Cluster_Mode"
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na_utils.setup_tracing(self.configuration.netapp_trace_flags)
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@na_utils.trace
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def do_setup(self, context):
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"""Prepare once the driver.
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Called once by the manager after the driver is loaded.
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Sets up clients, check licenses, sets up protocol
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specific helpers.
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"""
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self._client = NetAppApiClient(self.api_version,
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configuration=self.configuration)
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self._setup_helpers()
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@na_utils.trace
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def ensure_share(self, context, share, share_server=None):
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"""Invoked to ensure that share is exported."""
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pass
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@na_utils.trace
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def _check_licenses(self):
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self._licenses = []
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try:
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licenses = self._client.send_request('license-v2-list-info')
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except naapi.NaApiError as e:
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LOG.error(_LE("Could not get licenses list. %s."), e)
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else:
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self._licenses = sorted([
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l.get_child_content('package').lower()
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for l in licenses.get_child_by_name('licenses').get_children()
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])
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log_data = {
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'backend': self.backend_name,
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'licenses': ', '.join(self._licenses),
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}
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LOG.info(_LI("Available licenses on '%(backend)s' "
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"are %(licenses)s."), log_data)
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return self._licenses
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def _get_valid_share_name(self, share_id):
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"""Get share name according to share name template."""
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return self.configuration.netapp_nas_volume_name_template % {
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'share_id': share_id.replace('-', '_')}
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def _get_valid_snapshot_name(self, snapshot_id):
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"""Get snapshot name according to snapshot name template."""
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return 'share_snapshot_' + snapshot_id.replace('-', '_')
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@na_utils.trace
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def _update_share_stats(self):
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"""Retrieve stats info from Cluster Mode backend."""
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total, free = self._calculate_capacity()
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data = dict(
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share_backend_name=self.backend_name,
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vendor_name='NetApp',
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storage_protocol='NFS_CIFS',
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total_capacity_gb=(total / units.Gi),
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free_capacity_gb=(free / units.Gi))
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super(NetAppClusteredShareDriver, self)._update_share_stats(data)
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na_utils.provide_ems(self, self._client._client, self.backend_name,
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self._app_version)
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def check_for_setup_error(self):
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"""Raises error if prerequisites are not met."""
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self._check_licenses()
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@na_utils.trace
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def _calculate_capacity(self):
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"""Calculates capacity
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Returns tuple (total, free) in bytes.
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"""
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aggrs = self._find_match_aggregates()
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aggr_space_attrs = [aggr.get_child_by_name('aggr-space-attributes')
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for aggr in aggrs]
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total = sum([int(aggr.get_child_content('size-total'))
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for aggr in aggr_space_attrs])
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free = max([int(aggr.get_child_content('size-available'))
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for aggr in aggr_space_attrs])
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return total, free
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@na_utils.trace
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def _setup_server(self, network_info, metadata=None):
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"""Creates and configures new vserver."""
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LOG.debug('Creating server %s', network_info['server_id'])
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vserver_name = self._vserver_create_if_not_exists(network_info)
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return {'vserver_name': vserver_name}
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@na_utils.trace
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def _get_cluster_nodes(self):
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"""Get all available cluster nodes."""
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response = self._client.send_request('system-node-get-iter')
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nodes_info_list = response.get_child_by_name('attributes-list')\
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.get_children() if response.get_child_by_name('attributes-list') \
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else []
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nodes = [node_info.get_child_content('node') for node_info
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in nodes_info_list]
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return nodes
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@na_utils.trace
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def _get_node_data_port(self, node):
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"""Get data port on the node."""
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args = {
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'query': {
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'net-port-info': {
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'node': node,
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'port-type': 'physical',
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'role': 'data'
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}
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}
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}
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port_info = self._client.send_request('net-port-get-iter', args)
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try:
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port = port_info.get_child_by_name('attributes-list')\
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.get_child_by_name('net-port-info')\
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.get_child_content('port')
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except AttributeError:
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msg = _("Data port does not exist for node %s.") % node
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LOG.error(msg)
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raise exception.NetAppException(msg)
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return port
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@na_utils.trace
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def _create_vserver(self, vserver_name):
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"""Creates new vserver and assigns aggregates."""
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create_args = {'vserver-name': vserver_name,
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'root-volume-security-style': 'unix',
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'root-volume-aggregate':
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self.configuration.netapp_root_volume_aggregate,
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'root-volume':
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self.configuration.netapp_root_volume_name,
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'name-server-switch': {'nsswitch': 'file'}}
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self._client.send_request('vserver-create', create_args)
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aggrs = self._find_match_aggregates()
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aggr_list = [{'aggr-name': aggr.get_child_content('aggregate-name')}
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for aggr in aggrs]
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modify_args = {'aggr-list': aggr_list,
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'vserver-name': vserver_name}
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self._client.send_request('vserver-modify', modify_args)
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@na_utils.trace
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def _find_match_aggregates(self):
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"""Find all aggregates match pattern."""
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pattern = self.configuration.netapp_aggregate_name_search_pattern
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try:
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aggrs = self._client.send_request('aggr-get-iter')\
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.get_child_by_name('attributes-list').get_children()
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except AttributeError:
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msg = _("Have not found aggregates match pattern %s") % pattern
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LOG.error(msg)
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raise exception.NetAppException(msg)
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aggr_list = [aggr for aggr in aggrs if re.match(
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pattern, aggr.get_child_content('aggregate-name'))]
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return aggr_list
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@na_utils.trace
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def get_network_allocations_number(self):
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"""Get number of network interfaces to be created."""
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return int(self._client.send_request(
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'system-node-get-iter').get_child_content('num-records'))
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@na_utils.trace
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def _create_net_iface(self, ip, netmask, vlan, node, port, vserver_name,
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allocation_id):
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"""Creates lif on vlan port."""
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vlan_iface_name = "%(port)s-%(tag)s" % {'port': port, 'tag': vlan}
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try:
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args = {
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'vlan-info': {
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'parent-interface': port,
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'node': node,
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'vlanid': vlan
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}
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}
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self._client.send_request('net-vlan-create', args)
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except naapi.NaApiError as e:
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if e.code == '13130':
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LOG.debug("Vlan %(vlan)s already exists on port %(port)s",
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{'vlan': vlan, 'port': port})
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else:
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raise exception.NetAppException(
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_("Failed to create vlan %(vlan)s on "
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"port %(port)s. %(err_msg)") %
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{'vlan': vlan, 'port': port, 'err_msg': e.message})
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iface_name = (self.configuration.netapp_lif_name_template %
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{'node': node, 'net_allocation_id': allocation_id})
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LOG.debug('Creating LIF %(lif)r for vserver %(vserver)s ',
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{'lif': iface_name, 'vserver': vserver_name})
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args = {'address': ip,
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'administrative-status': 'up',
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'data-protocols': [
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{'data-protocol': 'nfs'},
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{'data-protocol': 'cifs'}
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],
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'home-node': node,
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'home-port': vlan_iface_name,
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'netmask': netmask,
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'interface-name': iface_name,
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'role': 'data',
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'vserver': vserver_name,
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}
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self._client.send_request('net-interface-create', args)
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@na_utils.trace
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def _delete_net_iface(self, iface_name):
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"""Deletes lif."""
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args = {'vserver': None,
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'interface-name': iface_name}
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self._client.send_request('net-interface-delete', args)
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@na_utils.trace
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def _setup_helpers(self):
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"""Initializes protocol-specific NAS drivers."""
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self._helpers = {'CIFS': NetAppClusteredCIFSHelper(),
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'NFS': NetAppClusteredNFSHelper()}
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@na_utils.trace
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def _get_helper(self, share):
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"""Returns driver which implements share protocol."""
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share_proto = share['share_proto']
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if share_proto.lower() not in self._licenses:
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current_licenses = self._check_licenses()
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if share_proto not in current_licenses:
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msg = _("There is no license for %s at Ontap") % share_proto
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LOG.error(msg)
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raise exception.NetAppException(msg)
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for proto in self._helpers.keys():
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if share_proto == proto:
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return self._helpers[proto]
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err_msg = _("Invalid NAS protocol supplied: %s.") % share_proto
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raise exception.NetAppException(err_msg)
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@na_utils.trace
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def _vserver_exists(self, vserver_name):
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args = {'query': {'vserver-info': {'vserver-name': vserver_name}}}
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LOG.debug('Checking if vserver exists')
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vserver_info = self._client.send_request('vserver-get-iter', args)
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if int(vserver_info.get_child_content('num-records')):
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return True
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else:
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return False
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@na_utils.trace
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def _vserver_create_if_not_exists(self, network_info):
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"""Creates vserver if not exists with given parameters."""
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vserver_name = (self.configuration.netapp_vserver_name_template %
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network_info['server_id'])
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context_adm = context.get_admin_context()
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self.db.share_server_backend_details_set(
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context_adm,
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network_info['server_id'],
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{'vserver_name': vserver_name},
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)
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vserver_client = NetAppApiClient(
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self.api_version, vserver=vserver_name,
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configuration=self.configuration)
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if not self._vserver_exists(vserver_name):
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LOG.debug('Vserver %s does not exist, creating', vserver_name)
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self._create_vserver(vserver_name)
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nodes = self._get_cluster_nodes()
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node_network_info = zip(nodes, network_info['network_allocations'])
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netmask = utils.cidr_to_netmask(network_info['cidr'])
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try:
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for node, net_info in node_network_info:
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port = self._get_node_data_port(node)
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ip = net_info['ip_address']
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self._create_lif_if_not_exists(
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vserver_name, net_info['id'],
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network_info['segmentation_id'], node, port,
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ip, netmask, vserver_client)
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except naapi.NaApiError:
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with excutils.save_and_reraise_exception():
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LOG.error(_LE("Failed to create network interface"))
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self._delete_vserver(vserver_name, vserver_client)
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self._enable_nfs(vserver_client)
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security_services = network_info.get('security_services')
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if security_services:
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self._setup_security_services(security_services, vserver_client,
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vserver_name)
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return vserver_name
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@na_utils.trace
|
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def _setup_security_services(self, security_services, vserver_client,
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vserver_name):
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modify_args = {
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'name-mapping-switch': {
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'nmswitch': 'ldap,file'},
|
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'name-server-switch': {
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'nsswitch': 'ldap,file'},
|
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'vserver-name': vserver_name}
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self._client.send_request('vserver-modify', modify_args)
|
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for security_service in security_services:
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if security_service['type'].lower() == "ldap":
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self._configure_ldap(security_service, vserver_client)
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elif security_service['type'].lower() == "active_directory":
|
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self._configure_active_directory(security_service,
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vserver_client,
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vserver_name)
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elif security_service['type'].lower() == "kerberos":
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self._configure_kerberos(vserver_name, security_service,
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vserver_client)
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else:
|
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raise exception.NetAppException(
|
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_('Unsupported protocol %s for NetApp driver')
|
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% security_service['type'])
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|
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@na_utils.trace
|
|
def _enable_nfs(self, vserver_client):
|
|
"""Enables NFS on vserver."""
|
|
vserver_client.send_request('nfs-enable')
|
|
args = {'is-nfsv40-enabled': 'true'}
|
|
vserver_client.send_request('nfs-service-modify', args)
|
|
args = {
|
|
'client-match': '0.0.0.0/0',
|
|
'policy-name': 'default',
|
|
'ro-rule': {
|
|
'security-flavor': 'any'
|
|
},
|
|
'rw-rule': {
|
|
'security-flavor': 'any'
|
|
}
|
|
}
|
|
vserver_client.send_request('export-rule-create', args)
|
|
|
|
@na_utils.trace
|
|
def _configure_ldap(self, data, vserver_client):
|
|
"""Configures LDAP on vserver."""
|
|
config_name = hashlib.md5(data['id']).hexdigest()
|
|
args = {'ldap-client-config': config_name,
|
|
'servers': {
|
|
'ip-address': data['server']
|
|
},
|
|
'tcp-port': '389',
|
|
'schema': 'RFC-2307',
|
|
'bind-password': data['password']}
|
|
vserver_client.send_request('ldap-client-create', args)
|
|
args = {'client-config': config_name,
|
|
'client-enabled': 'true'}
|
|
vserver_client.send_request('ldap-config-create', args)
|
|
|
|
@na_utils.trace
|
|
def _configure_dns(self, data, vserver_client):
|
|
args = {
|
|
'domains': {
|
|
'string': data['domain']
|
|
},
|
|
'name-servers': {
|
|
'ip-address': data['dns_ip']
|
|
},
|
|
'dns-state': 'enabled'
|
|
}
|
|
try:
|
|
vserver_client.send_request('net-dns-create', args)
|
|
except naapi.NaApiError as e:
|
|
if e.code == '13130':
|
|
LOG.error(_LE("DNS exists for vserver."))
|
|
else:
|
|
raise exception.NetAppException(
|
|
_("Failed to configure DNS. %s") % e.message)
|
|
|
|
@na_utils.trace
|
|
def _configure_kerberos(self, vserver, data, vserver_client):
|
|
"""Configures Kerberos for NFS on vServer."""
|
|
args = {'admin-server-ip': data['server'],
|
|
'admin-server-port': '749',
|
|
'clock-skew': '5',
|
|
'comment': '',
|
|
'config-name': data['id'],
|
|
'kdc-ip': data['server'],
|
|
'kdc-port': '88',
|
|
'kdc-vendor': 'other',
|
|
'password-server-ip': data['server'],
|
|
'password-server-port': '464',
|
|
'realm': data['domain'].upper()}
|
|
try:
|
|
self._client.send_request('kerberos-realm-create', args)
|
|
except naapi.NaApiError as e:
|
|
if e.code == '13130':
|
|
LOG.debug("Kerberos realm config already exists")
|
|
else:
|
|
raise exception.NetAppException(
|
|
_("Failed to configure Kerberos. %s") % e.message)
|
|
|
|
self._configure_dns(data, vserver_client)
|
|
spn = 'nfs/' + vserver.replace('_', '-') + '.' + data['domain'] + '@'\
|
|
+ data['domain'].upper()
|
|
lifs = self._get_lifs(vserver_client)
|
|
if not lifs:
|
|
msg = _("Cannot set up kerberos. There are no lifs configured")
|
|
LOG.error(msg)
|
|
raise Exception(msg)
|
|
for lif_name in lifs:
|
|
args = {
|
|
'admin-password': data['password'],
|
|
'admin-user-name': data['user'],
|
|
'interface-name': lif_name,
|
|
'is-kerberos-enabled': 'true',
|
|
'service-principal-name': spn
|
|
}
|
|
vserver_client.send_request('kerberos-config-modify', args)
|
|
|
|
@na_utils.trace
|
|
def _configure_active_directory(self, sec_service_data, vserver_client,
|
|
vserver_name):
|
|
"""Configures AD on vserver."""
|
|
self._configure_dns(sec_service_data, vserver_client)
|
|
# 'cifs-server' is CIFS Server NetBIOS Name, max length is 15.
|
|
# Should be unique within each domain (data['domain']).
|
|
cifs_server = (vserver_name[0:7] + '..' + vserver_name[-6:]).upper()
|
|
data = {
|
|
'admin-username': sec_service_data['user'],
|
|
'admin-password': sec_service_data['password'],
|
|
'force-account-overwrite': 'true',
|
|
'cifs-server': cifs_server,
|
|
'domain': sec_service_data['domain'],
|
|
}
|
|
try:
|
|
LOG.debug("Trying to setup cifs server with data: %s", data)
|
|
vserver_client.send_request('cifs-server-create', data)
|
|
except naapi.NaApiError as e:
|
|
msg = _("Failed to create CIFS server entry. %s.") % e.message
|
|
raise exception.NetAppException(msg)
|
|
|
|
@na_utils.trace
|
|
def _get_lifs(self, vserver_client):
|
|
lifs_info = vserver_client.send_request('net-interface-get-iter')
|
|
try:
|
|
lif_names = [lif.get_child_content('interface-name') for lif in
|
|
lifs_info.get_child_by_name('attributes-list')
|
|
.get_children()]
|
|
except AttributeError:
|
|
lif_names = []
|
|
return lif_names
|
|
|
|
@na_utils.trace
|
|
def _create_lif_if_not_exists(self, vserver_name, allocation_id, vlan,
|
|
node, port, ip, netmask, vserver_client):
|
|
"""Creates lif for vserver."""
|
|
args = {
|
|
'query': {
|
|
'net-interface-info': {
|
|
'address': ip,
|
|
'home-node': node,
|
|
'home-port': port,
|
|
'netmask': netmask,
|
|
'vserver': vserver_name}
|
|
}
|
|
}
|
|
ifaces = vserver_client.send_request('net-interface-get-iter',
|
|
args)
|
|
if (not ifaces.get_child_content('num_records') or
|
|
ifaces.get_child_content('num_records') == '0'):
|
|
self._create_net_iface(ip, netmask, vlan, node, port, vserver_name,
|
|
allocation_id)
|
|
|
|
@na_utils.trace
|
|
def get_available_aggregates_for_vserver(self, vserver, vserver_client):
|
|
"""Returns aggregate list for the vserver."""
|
|
LOG.debug('Finding available aggreagates for vserver %s', vserver)
|
|
response = vserver_client.send_request('vserver-get')
|
|
vserver_info = response.get_child_by_name('attributes')\
|
|
.get_child_by_name('vserver-info')
|
|
aggr_list_elements = vserver_info\
|
|
.get_child_by_name('vserver-aggr-info-list').get_children()
|
|
|
|
if not aggr_list_elements:
|
|
msg = _("No aggregate assigned to vserver %s")
|
|
raise exception.NetAppException(msg % vserver)
|
|
|
|
# return dict of key-value pair of aggr_name:si$
|
|
aggr_dict = {}
|
|
|
|
for aggr_elem in aggr_list_elements:
|
|
aggr_name = aggr_elem.get_child_content('aggr-name')
|
|
aggr_size = int(aggr_elem.get_child_content('aggr-availsize'))
|
|
aggr_dict[aggr_name] = aggr_size
|
|
LOG.debug("Found available aggregates: %r", aggr_dict)
|
|
return aggr_dict
|
|
|
|
@ensure_vserver
|
|
@na_utils.trace
|
|
def create_share(self, context, share, share_server=None):
|
|
"""Creates new share."""
|
|
vserver = share_server['backend_details']['vserver_name']
|
|
vserver_client = NetAppApiClient(
|
|
self.api_version, vserver=vserver,
|
|
configuration=self.configuration)
|
|
self._allocate_container(share, vserver, vserver_client)
|
|
return self._create_export(share, vserver, vserver_client)
|
|
|
|
@ensure_vserver
|
|
@na_utils.trace
|
|
def create_share_from_snapshot(self, context, share, snapshot,
|
|
share_server=None):
|
|
"""Creates new share form snapshot."""
|
|
vserver = share_server['backend_details']['vserver_name']
|
|
vserver_client = NetAppApiClient(
|
|
self.api_version, vserver=vserver,
|
|
configuration=self.configuration)
|
|
|
|
self._allocate_container_from_snapshot(share, snapshot, vserver,
|
|
vserver_client)
|
|
return self._create_export(share, vserver, vserver_client)
|
|
|
|
@na_utils.trace
|
|
def _allocate_container(self, share, vserver, vserver_client):
|
|
"""Create new share on aggregate."""
|
|
share_name = self._get_valid_share_name(share['id'])
|
|
aggregates = self.get_available_aggregates_for_vserver(vserver,
|
|
vserver_client)
|
|
aggregate = max(aggregates, key=lambda m: aggregates[m])
|
|
|
|
LOG.debug('Creating volume %(share_name)s on '
|
|
'aggregate %(aggregate)s',
|
|
{'share_name': share_name, 'aggregate': aggregate})
|
|
args = {'containing-aggr-name': aggregate,
|
|
'size': str(share['size']) + 'g',
|
|
'volume': share_name,
|
|
'junction-path': '/%s' % share_name
|
|
}
|
|
vserver_client.send_request('volume-create', args)
|
|
|
|
@na_utils.trace
|
|
def _allocate_container_from_snapshot(self, share, snapshot, vserver,
|
|
vserver_client):
|
|
"""Clones existing share."""
|
|
share_name = self._get_valid_share_name(share['id'])
|
|
parent_share_name = self._get_valid_share_name(snapshot['share_id'])
|
|
parent_snapshot_name = self._get_valid_snapshot_name(snapshot['id'])
|
|
|
|
LOG.debug('Creating volume from snapshot %s', snapshot['id'])
|
|
args = {'volume': share_name,
|
|
'parent-volume': parent_share_name,
|
|
'parent-snapshot': parent_snapshot_name,
|
|
'junction-path': '/%s' % share_name
|
|
}
|
|
|
|
vserver_client.send_request('volume-clone-create', args)
|
|
|
|
@na_utils.trace
|
|
def _share_exists(self, share_name, vserver_client):
|
|
args = {
|
|
'query': {
|
|
'volume-attributes': {
|
|
'volume-id-attributes': {
|
|
'name': share_name
|
|
}
|
|
}
|
|
}
|
|
}
|
|
response = vserver_client.send_request('volume-get-iter', args)
|
|
if int(response.get_child_content('num-records')):
|
|
return True
|
|
|
|
@na_utils.trace
|
|
def _deallocate_container(self, share, vserver_client):
|
|
"""Free share space."""
|
|
self._share_unmount(share, vserver_client)
|
|
self._offline_share(share, vserver_client)
|
|
self._delete_share(share, vserver_client)
|
|
|
|
@na_utils.trace
|
|
def _offline_share(self, share, vserver_client):
|
|
"""Sends share offline. Required before deleting a share."""
|
|
share_name = self._get_valid_share_name(share['id'])
|
|
args = {'name': share_name}
|
|
LOG.debug('Offline volume %s', share_name)
|
|
vserver_client.send_request('volume-offline', args)
|
|
|
|
@na_utils.trace
|
|
def _delete_share(self, share, vserver_client):
|
|
"""Destroys share on a target OnTap device."""
|
|
share_name = self._get_valid_share_name(share['id'])
|
|
args = {'name': share_name}
|
|
LOG.debug('Deleting share %s', share_name)
|
|
vserver_client.send_request('volume-destroy', args)
|
|
|
|
@ensure_vserver
|
|
@na_utils.trace
|
|
def delete_share(self, context, share, share_server=None):
|
|
"""Deletes share."""
|
|
share_name = self._get_valid_share_name(share['id'])
|
|
vserver = share_server['backend_details']['vserver_name']
|
|
vserver_client = NetAppApiClient(
|
|
self.api_version, vserver=vserver,
|
|
configuration=self.configuration)
|
|
if self._share_exists(share_name, vserver_client):
|
|
self._remove_export(share, vserver_client)
|
|
self._deallocate_container(share, vserver_client)
|
|
else:
|
|
LOG.info(_LI("Share %s does not exist."), share['id'])
|
|
|
|
@na_utils.trace
|
|
def _create_export(self, share, vserver, vserver_client):
|
|
"""Creates NAS storage."""
|
|
helper = self._get_helper(share)
|
|
helper.set_client(vserver_client)
|
|
share_name = self._get_valid_share_name(share['id'])
|
|
args = {
|
|
'query': {
|
|
'net-interface-info': {'vserver': vserver}
|
|
}
|
|
}
|
|
ifaces = vserver_client.send_request('net-interface-get-iter', args)
|
|
if not int(ifaces.get_child_content('num-records')):
|
|
raise exception.NetAppException(
|
|
_("Cannot find network interfaces for vserver %s.") % vserver)
|
|
ifaces_list = ifaces.get_child_by_name('attributes-list')\
|
|
.get_children()
|
|
ip_address = ifaces_list[0].get_child_content('address')
|
|
export_location = helper.create_share(share_name, ip_address)
|
|
return export_location
|
|
|
|
@ensure_vserver
|
|
@na_utils.trace
|
|
def create_snapshot(self, context, snapshot, share_server=None):
|
|
"""Creates a snapshot of a share."""
|
|
vserver = share_server['backend_details']['vserver_name']
|
|
vserver_client = NetAppApiClient(
|
|
self.api_version, vserver=vserver,
|
|
configuration=self.configuration)
|
|
share_name = self._get_valid_share_name(snapshot['share_id'])
|
|
snapshot_name = self._get_valid_snapshot_name(snapshot['id'])
|
|
args = {'volume': share_name,
|
|
'snapshot': snapshot_name}
|
|
LOG.debug('Creating snapshot %s', snapshot_name)
|
|
vserver_client.send_request('snapshot-create', args)
|
|
|
|
@na_utils.trace
|
|
def _remove_export(self, share, vserver_client):
|
|
"""Deletes NAS storage."""
|
|
helper = self._get_helper(share)
|
|
helper.set_client(vserver_client)
|
|
target = helper.get_target(share)
|
|
# share may be in error state, so there's no share and target
|
|
if target:
|
|
helper.delete_share(share)
|
|
|
|
@ensure_vserver
|
|
@na_utils.trace
|
|
def delete_snapshot(self, context, snapshot, share_server=None):
|
|
"""Deletes a snapshot of a share."""
|
|
vserver = share_server['backend_details']['vserver_name']
|
|
vserver_client = NetAppApiClient(
|
|
self.api_version, vserver=vserver,
|
|
configuration=self.configuration)
|
|
share_name = self._get_valid_share_name(snapshot['share_id'])
|
|
snapshot_name = self._get_valid_snapshot_name(snapshot['id'])
|
|
|
|
self._is_snapshot_busy(share_name, snapshot_name, vserver_client)
|
|
args = {'snapshot': snapshot_name,
|
|
'volume': share_name}
|
|
LOG.debug('Deleting snapshot %s', snapshot_name)
|
|
vserver_client.send_request('snapshot-delete', args)
|
|
|
|
@na_utils.trace
|
|
def _is_snapshot_busy(self, share_name, snapshot_name, vserver_client):
|
|
"""Raises ShareSnapshotIsBusy if snapshot is busy."""
|
|
args = {'volume': share_name}
|
|
snapshots = vserver_client.send_request('snapshot-list-info',
|
|
args)
|
|
for snap in snapshots.get_child_by_name('snapshots').get_children():
|
|
if (snap.get_child_by_name('name').get_content() == snapshot_name
|
|
and (snap.get_child_by_name('busy').get_content()
|
|
== 'true')):
|
|
return True
|
|
|
|
@na_utils.trace
|
|
def _share_unmount(self, share, vserver_client):
|
|
"""Unmounts share (required before deleting)."""
|
|
share_name = self._get_valid_share_name(share['id'])
|
|
args = {'volume-name': share_name}
|
|
LOG.debug('Unmounting volume %s', share_name)
|
|
vserver_client.send_request('volume-unmount', args)
|
|
|
|
@ensure_vserver
|
|
@na_utils.trace
|
|
def allow_access(self, context, share, access, share_server=None):
|
|
"""Allows access to a given NAS storage."""
|
|
vserver = share_server['backend_details']['vserver_name']
|
|
vserver_client = NetAppApiClient(
|
|
self.api_version, vserver=vserver,
|
|
configuration=self.configuration)
|
|
helper = self._get_helper(share)
|
|
helper.set_client(vserver_client)
|
|
return helper.allow_access(context, share, access)
|
|
|
|
@ensure_vserver
|
|
@na_utils.trace
|
|
def deny_access(self, context, share, access, share_server=None):
|
|
"""Denies access to a given NAS storage."""
|
|
vserver = share_server['backend_details']['vserver_name']
|
|
vserver_client = NetAppApiClient(
|
|
self.api_version, vserver=vserver,
|
|
configuration=self.configuration)
|
|
helper = self._get_helper(share)
|
|
helper.set_client(vserver_client)
|
|
return helper.deny_access(context, share, access)
|
|
|
|
@na_utils.trace
|
|
def _delete_vserver(self, vserver_name, vserver_client,
|
|
security_services=None):
|
|
"""Delete vserver.
|
|
|
|
Checks if vserver exists and does not have active shares.
|
|
Offlines and destroys root volumes.
|
|
Deletes vserver.
|
|
"""
|
|
if not self._vserver_exists(vserver_name):
|
|
LOG.error(_LE("Vserver %s does not exist."), vserver_name)
|
|
return
|
|
volumes_data = vserver_client.send_request('volume-get-iter')
|
|
volumes_count = int(volumes_data.get_child_content('num-records'))
|
|
if volumes_count == 1:
|
|
try:
|
|
vserver_client.send_request(
|
|
'volume-offline',
|
|
{'name': self.configuration.netapp_root_volume_name})
|
|
except naapi.NaApiError as e:
|
|
if e.code == '13042':
|
|
LOG.error(_LE("Volume %s is already offline."),
|
|
self.configuration.netapp_root_volume_name)
|
|
else:
|
|
raise e
|
|
vserver_client.send_request(
|
|
'volume-destroy',
|
|
{'name': self.configuration.netapp_root_volume_name})
|
|
elif volumes_count > 1:
|
|
msg = _("Error deleting vserver. "
|
|
"Vserver %s has shares.") % vserver_name
|
|
LOG.error(msg)
|
|
raise exception.NetAppException(msg)
|
|
if security_services:
|
|
for service in security_services:
|
|
if service['type'] == 'active_directory':
|
|
args = {
|
|
'admin-password': service['password'],
|
|
'admin-username': service['user'],
|
|
}
|
|
try:
|
|
vserver_client.send_request('cifs-server-delete',
|
|
args)
|
|
except naapi.NaApiError as e:
|
|
if e.code == "15661":
|
|
LOG.error(_LE("CIFS server does not exist for"
|
|
" vserver %s"), vserver_name)
|
|
else:
|
|
vserver_client.send_request('cifs-server-delete')
|
|
self._client.send_request('vserver-destroy',
|
|
{'vserver-name': vserver_name})
|
|
|
|
@na_utils.trace
|
|
def _teardown_server(self, server_details, security_services=None):
|
|
"""Teardown share network."""
|
|
vserver_name = server_details['vserver_name']
|
|
vserver_client = NetAppApiClient(
|
|
self.api_version, vserver=vserver_name,
|
|
configuration=self.configuration)
|
|
self._delete_vserver(vserver_name, vserver_client,
|
|
security_services=security_services)
|
|
|
|
|
|
@six.add_metaclass(abc.ABCMeta)
|
|
class NetAppNASHelperBase(object):
|
|
"""Interface for protocol-specific NAS drivers."""
|
|
|
|
def __init__(self):
|
|
self._client = None
|
|
|
|
def set_client(self, client):
|
|
self._client = client
|
|
|
|
@abc.abstractmethod
|
|
def create_share(self, share, export_ip):
|
|
"""Creates NAS share."""
|
|
|
|
@abc.abstractmethod
|
|
def delete_share(self, share):
|
|
"""Deletes NAS share."""
|
|
|
|
@abc.abstractmethod
|
|
def allow_access(self, context, share, access):
|
|
"""Allows new_rules to a given NAS storage in new_rules."""
|
|
|
|
@abc.abstractmethod
|
|
def deny_access(self, context, share, access):
|
|
"""Denies new_rules to a given NAS storage in new_rules."""
|
|
|
|
@abc.abstractmethod
|
|
def get_target(self, share):
|
|
"""Returns host where the share located."""
|
|
|
|
|
|
class NetAppClusteredNFSHelper(NetAppNASHelperBase):
|
|
"""Netapp specific cluster-mode NFS sharing driver."""
|
|
|
|
def __init__(self):
|
|
super(NetAppClusteredNFSHelper, self).__init__()
|
|
# NOTE(vponomaryov): Different versions of Data ONTAP API has
|
|
# different behavior for API call "nfs-exportfs-append-rules-2", that
|
|
# can require prefix "/vol" or not for path to apply rules for.
|
|
# Following attr used by "add_rules" method to handle setting up nfs
|
|
# exports properly in long term.
|
|
self.nfs_exports_with_prefix = False
|
|
|
|
@na_utils.trace
|
|
def create_share(self, share_name, export_ip):
|
|
"""Creates NFS share."""
|
|
arguments = {'is-style-cifs': 'false', 'volume': share_name}
|
|
export_pathname = self._client.send_request(
|
|
'volume-get-volume-path', arguments).get_child_by_name(
|
|
'junction').get_content()
|
|
self.add_rules(export_pathname, ['localhost'])
|
|
export_location = ':'.join([export_ip, export_pathname])
|
|
return export_location
|
|
|
|
@na_utils.trace
|
|
def allow_access_by_user(self, share, user):
|
|
user, _x, group = user.partition(':')
|
|
args = {
|
|
'attributes': {
|
|
'volume-attributes': {
|
|
'volume-security-attributes': {
|
|
'volume-security-unix-attributes': {
|
|
'user-id': user,
|
|
'group-id': group or 'root'
|
|
}
|
|
}
|
|
}
|
|
},
|
|
'query': {
|
|
'volume-attributes': {
|
|
'volume-id-attributes': {
|
|
'junction-path': self._get_export_path(share)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
self._client.send_request('volume-modify-iter', args)
|
|
|
|
@na_utils.trace
|
|
def deny_access_by_user(self, share, user):
|
|
args = {
|
|
'attributes': {
|
|
'volume-security-attributes': {
|
|
'volume-security-unix-attributes': {
|
|
'user': 'root'
|
|
}
|
|
}
|
|
},
|
|
'query': {
|
|
'volume-attributes': {
|
|
'volume-id-attributes': {
|
|
'junction-path': self._get_export_path(share)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
self._client.send_request('volume-modify-iter', args)
|
|
|
|
@na_utils.trace
|
|
def add_rules(self, volume_path, rules):
|
|
req_bodies = []
|
|
security_rule_args = {
|
|
'security-rule-info': {
|
|
'read-write': {
|
|
'exports-hostname-info': {
|
|
'name': 'localhost',
|
|
}
|
|
},
|
|
'root': {
|
|
'exports-hostname-info': {
|
|
'all-hosts': 'false',
|
|
'name': 'localhost',
|
|
}
|
|
}
|
|
}
|
|
}
|
|
hostname_info_args = {
|
|
'exports-hostname-info': {
|
|
'name': 'localhost',
|
|
}
|
|
}
|
|
req_bodies.insert(0, {
|
|
'rules': {
|
|
'exports-rule-info-2': {
|
|
'pathname': volume_path,
|
|
'security-rules': {
|
|
'security-rule-info': {
|
|
'read-write': {
|
|
'exports-hostname-info': {
|
|
'name': 'localhost',
|
|
}
|
|
},
|
|
'root': {
|
|
'exports-hostname-info': {
|
|
'all-hosts': 'false',
|
|
'name': 'localhost',
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
})
|
|
allowed_hosts_xml = []
|
|
|
|
for ip in rules:
|
|
hostname_info = hostname_info_args.copy()
|
|
hostname_info['exports-hostname-info'] = {'name': ip}
|
|
allowed_hosts_xml.append(hostname_info)
|
|
|
|
security_rule = security_rule_args.copy()
|
|
security_rule['security-rule-info']['read-write'] = allowed_hosts_xml
|
|
security_rule['security-rule-info']['root'] = allowed_hosts_xml
|
|
req_bodies[0]['rules']['exports-rule-info-2']['security-rules'] = (
|
|
security_rule)
|
|
req_bodies.insert(1, copy.deepcopy(req_bodies[0]))
|
|
req_bodies[1]['rules']['exports-rule-info-2']['pathname'] = (
|
|
'/vol' + volume_path)
|
|
|
|
LOG.debug('Appending nfs rules %r', rules)
|
|
try:
|
|
if self.nfs_exports_with_prefix:
|
|
self._client.send_request(
|
|
'nfs-exportfs-append-rules-2', req_bodies.pop(1))
|
|
else:
|
|
self._client.send_request(
|
|
'nfs-exportfs-append-rules-2', req_bodies.pop(0))
|
|
except naapi.NaApiError as e:
|
|
if e.code == "13114":
|
|
# We expect getting here only in one case - when received first
|
|
# call of this method per backend, that is not covered by
|
|
# default value. Change its value, to send proper requests from
|
|
# first time.
|
|
self.nfs_exports_with_prefix = not self.nfs_exports_with_prefix
|
|
LOG.debug("Data ONTAP API 'nfs-exportfs-append-rules-2' "
|
|
"compatibility action: remember behavior to send "
|
|
"proper values with first attempt next times. "
|
|
"Now trying send another request with changed value "
|
|
"for 'pathname'.")
|
|
self._client.send_request(
|
|
'nfs-exportfs-append-rules-2', req_bodies.pop(0))
|
|
else:
|
|
raise
|
|
|
|
@na_utils.trace
|
|
def delete_share(self, share):
|
|
"""Deletes NFS share."""
|
|
target, export_path = self._get_export_path(share)
|
|
args = {
|
|
'pathnames': {
|
|
'pathname-info': {
|
|
'name': export_path,
|
|
}
|
|
}
|
|
}
|
|
LOG.debug('Deleting NFS rules for share %s', share['id'])
|
|
self._client.send_request('nfs-exportfs-delete-rules', args)
|
|
|
|
@na_utils.trace
|
|
def allow_access(self, context, share, access):
|
|
"""Allows access to a given NFS storage."""
|
|
new_rules = access['access_to']
|
|
existing_rules = self._get_exisiting_rules(share)
|
|
|
|
if not isinstance(new_rules, list):
|
|
new_rules = [new_rules]
|
|
|
|
rules = existing_rules + new_rules
|
|
try:
|
|
self._modify_rule(share, rules)
|
|
except naapi.NaApiError:
|
|
self._modify_rule(share, existing_rules)
|
|
|
|
@na_utils.trace
|
|
def deny_access(self, context, share, access):
|
|
"""Denies access to a given NFS storage."""
|
|
access_to = access['access_to']
|
|
existing_rules = self._get_exisiting_rules(share)
|
|
|
|
if not isinstance(access_to, list):
|
|
access_to = [access_to]
|
|
|
|
for deny_rule in access_to:
|
|
if deny_rule in existing_rules:
|
|
existing_rules.remove(deny_rule)
|
|
|
|
self._modify_rule(share, existing_rules)
|
|
|
|
@na_utils.trace
|
|
def get_target(self, share):
|
|
"""Returns ID of target OnTap device based on export location."""
|
|
return self._get_export_path(share)[0]
|
|
|
|
@na_utils.trace
|
|
def _modify_rule(self, share, rules):
|
|
"""Modifies access rule for a given NFS share."""
|
|
target, export_path = self._get_export_path(share)
|
|
self.add_rules(export_path, rules)
|
|
|
|
@na_utils.trace
|
|
def _get_exisiting_rules(self, share):
|
|
"""Returns available access rules for a given NFS share."""
|
|
target, export_path = self._get_export_path(share)
|
|
|
|
args = {'pathname': export_path}
|
|
response = self._client.send_request('nfs-exportfs-list-rules-2', args)
|
|
rules = response.get_child_by_name('rules')
|
|
allowed_hosts = []
|
|
if rules and rules.get_child_by_name('exports-rule-info-2'):
|
|
security_rule = rules.get_child_by_name(
|
|
'exports-rule-info-2').get_child_by_name('security-rules')
|
|
security_info = security_rule.get_child_by_name(
|
|
'security-rule-info')
|
|
if security_info:
|
|
root_rules = security_info.get_child_by_name('root')
|
|
if root_rules:
|
|
allowed_hosts = root_rules.get_children()
|
|
|
|
existing_rules = []
|
|
|
|
for allowed_host in allowed_hosts:
|
|
if 'exports-hostname-info' in allowed_host.get_name():
|
|
existing_rules.append(allowed_host.get_child_content('name'))
|
|
LOG.debug('Found existing rules %(rules)r for share %(share)s',
|
|
{'rules': existing_rules, 'share': share['id']})
|
|
|
|
return existing_rules
|
|
|
|
@staticmethod
|
|
def _get_export_path(share):
|
|
"""Returns IP address and export location of a NFS share."""
|
|
export_location = share['export_location'] or ':'
|
|
return export_location.split(':')
|
|
|
|
|
|
class NetAppClusteredCIFSHelper(NetAppNASHelperBase):
|
|
"""Netapp specific cluster-mode CIFS sharing driver."""
|
|
|
|
@na_utils.trace
|
|
def create_share(self, share_name, export_ip):
|
|
"""Creates CIFS share on target OnTap host."""
|
|
share_path = '/%s' % share_name
|
|
args = {'path': share_path, 'share-name': share_name}
|
|
self._client.send_request('cifs-share-create', args)
|
|
self._restrict_access('Everyone', share_name)
|
|
return "//%s/%s" % (export_ip, share_name)
|
|
|
|
@na_utils.trace
|
|
def delete_share(self, share):
|
|
"""Deletes CIFS share on target OnTap host."""
|
|
host_ip, share_name = self._get_export_location(share)
|
|
args = {'share-name': share_name}
|
|
self._client.send_request('cifs-share-delete', args)
|
|
|
|
@na_utils.trace
|
|
def allow_access(self, context, share, access):
|
|
"""Allows access to the CIFS share for a given user."""
|
|
if access['access_type'] != 'user':
|
|
msg = _("Cluster Mode supports only 'user' type for share access"
|
|
" rules with CIFS protocol.")
|
|
raise exception.NetAppException(msg)
|
|
target, share_name = self._get_export_location(share)
|
|
args = {
|
|
'permission': 'full_control',
|
|
'share': share_name,
|
|
'user-or-group': access['access_to'],
|
|
}
|
|
try:
|
|
self._client.send_request('cifs-share-access-control-create', args)
|
|
except naapi.NaApiError as e:
|
|
if e.code == "13130":
|
|
# duplicate entry
|
|
raise exception.ShareAccessExists(
|
|
access_type=access['access_type'], access=access)
|
|
raise e
|
|
|
|
@na_utils.trace
|
|
def deny_access(self, context, share, access):
|
|
"""Denies access to the CIFS share for a given user."""
|
|
host_ip, share_name = self._get_export_location(share)
|
|
user = access['access_to']
|
|
try:
|
|
self._restrict_access(user, share_name)
|
|
except naapi.NaApiError as e:
|
|
if e.code == "22":
|
|
LOG.error(_LE("User %s does not exist."), user)
|
|
elif e.code == "15661":
|
|
LOG.error(_LE("Rule %s does not exist."), user)
|
|
else:
|
|
raise e
|
|
|
|
def get_target(self, share):
|
|
"""Returns OnTap target IP based on share export location."""
|
|
return self._get_export_location(share)[0]
|
|
|
|
@na_utils.trace
|
|
def _restrict_access(self, user_name, share_name):
|
|
args = {'user-or-group': user_name, 'share': share_name}
|
|
self._client.send_request('cifs-share-access-control-delete', args)
|
|
|
|
@staticmethod
|
|
def _get_export_location(share):
|
|
"""Returns host ip and share name for a given CIFS share."""
|
|
export_location = share['export_location'] or '///'
|
|
_x, _x, host_ip, share_name = export_location.split('/')
|
|
return host_ip, share_name
|