Merge "Remove IET iSCSI target"
This commit is contained in:
commit
a084c1f1d4
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@ -1,85 +0,0 @@
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# Copyright 2018 Red Hat, Inc
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# Copyright 2017 Rackspace Australia
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# Copyright 2018 Michael Still and Aptira
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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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Helpers for ietadm related routines.
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"""
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from oslo_concurrency import processutils
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import cinder.privsep
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@cinder.privsep.sys_admin_pctxt.entrypoint
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def new_target(name, tid):
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"""Create new scsi target using specified parameters.
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If the target already exists, ietadm returns
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'Invalid argument' and error code '234'.
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This should be ignored for ensure export case.
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"""
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processutils.execute('ietadm', '--op', 'new',
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'--tid=%s' % tid,
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'--params', 'Name=%s' % name,
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check_exit_code=[0, 234])
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@cinder.privsep.sys_admin_pctxt.entrypoint
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def delete_target(tid):
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processutils.execute('ietadm', '--op', 'delete',
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'--tid=%s' % tid)
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@cinder.privsep.sys_admin_pctxt.entrypoint
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def force_delete_target(tid, sid, cid):
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processutils.execute('ietadm', '--op', 'delete',
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'--tid=%s' % tid,
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'--sid=%s' % sid,
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'--cid=%s' % cid)
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@cinder.privsep.sys_admin_pctxt.entrypoint
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def new_logicalunit(tid, lun, path, iotype):
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"""Attach a new volume to scsi target as a logical unit.
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If a logical unit exists on the specified target lun,
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ietadm returns 'File exists' and error code '239'.
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This should be ignored for ensure export case.
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"""
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processutils.execute('ietadm', '--op', 'new',
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'--tid=%s' % tid,
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'--lun=%d' % lun,
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'--params',
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'Path=%s,Type=%s' % (path, iotype),
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check_exit_code=[0, 239])
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@cinder.privsep.sys_admin_pctxt.entrypoint
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def delete_logicalunit(tid, lun):
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processutils.execute('ietadm', '--op', 'delete',
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'--tid=%s' % tid,
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'--lun=%d' % lun)
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@cinder.privsep.sys_admin_pctxt.entrypoint
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def new_auth(tid, type, username, password):
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processutils.execute('ietadm', '--op', 'new',
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'--tid=%s' % tid,
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'--user',
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'--params=%s=%s,Password=%s' % (type,
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username,
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password))
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@ -1,214 +0,0 @@
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import contextlib
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import io
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from unittest import mock
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from oslo_concurrency import processutils as putils
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from cinder import context
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from cinder import exception
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from cinder.tests.unit.targets import targets_fixture as tf
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from cinder import utils
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from cinder.volume.targets import iet
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class TestIetAdmDriver(tf.TargetDriverFixture):
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def setUp(self):
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super(TestIetAdmDriver, self).setUp()
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self.target = iet.IetAdm(root_helper=utils.get_root_helper(),
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configuration=self.configuration)
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def test_get_target(self):
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tmp_file = io.StringIO()
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tmp_file.write(
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'tid:1 name:iqn.2010-10.org.openstack:'
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'volume-83c2e877-feed-46be-8435-77884fe55b45\n'
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' sid:844427031282176 initiator:'
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'iqn.1994-05.com.redhat:5a6894679665\n'
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' cid:0 ip:10.9.8.7 state:active hd:none dd:none')
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tmp_file.seek(0)
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with mock.patch('builtins.open') as mock_open:
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mock_open.return_value = contextlib.closing(tmp_file)
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self.assertEqual('1',
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self.target._get_target(
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'iqn.2010-10.org.openstack:'
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'volume-83c2e877-feed-46be-8435-77884fe55b45'
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))
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# Test the failure case: Failed to handle the config file
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mock_open.side_effect = MemoryError()
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self.assertRaises(MemoryError,
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self.target._get_target,
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'')
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@mock.patch('cinder.volume.targets.iet.IetAdm._get_target',
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return_value=0)
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@mock.patch('cinder.privsep.targets.iet.new_target')
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@mock.patch('cinder.privsep.targets.iet.new_logicalunit')
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@mock.patch('os.path.exists', return_value=True)
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@mock.patch('cinder.utils.temporary_chown')
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@mock.patch.object(iet, 'LOG')
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def test_create_iscsi_target(self, mock_log, mock_chown, mock_exists,
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mock_new_logical_unit, mock_new_target,
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mock_get_targ):
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tmp_file = io.StringIO()
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with mock.patch('builtins.open') as mock_open:
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mock_open.return_value = contextlib.closing(tmp_file)
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self.assertEqual(
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0,
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self.target.create_iscsi_target(
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self.test_vol,
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0,
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0,
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self.fake_volumes_dir))
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self.assertTrue(mock_new_target.called)
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self.assertTrue(mock_open.called)
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self.assertTrue(mock_get_targ.called)
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self.assertTrue(mock_new_logical_unit.called)
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# Test the failure case: Failed to chown the config file
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mock_open.side_effect = putils.ProcessExecutionError
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self.assertRaises(exception.ISCSITargetCreateFailed,
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self.target.create_iscsi_target,
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self.test_vol,
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0,
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0,
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self.fake_volumes_dir)
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# Test the failure case: Failed to set new auth
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mock_new_target.side_effect = putils.ProcessExecutionError
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self.assertRaises(exception.ISCSITargetCreateFailed,
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self.target.create_iscsi_target,
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self.test_vol,
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0,
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0,
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self.fake_volumes_dir)
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@mock.patch('cinder.utils.execute')
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@mock.patch('os.path.exists', return_value=True)
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def test_update_config_file_failure(self, mock_exists, mock_execute):
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# Test the failure case: conf file does not exist
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mock_exists.return_value = False
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mock_execute.side_effect = putils.ProcessExecutionError
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self.assertRaises(exception.ISCSITargetCreateFailed,
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self.target.update_config_file,
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self.test_vol,
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0,
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self.fake_volumes_dir,
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"foo bar")
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@mock.patch('cinder.volume.targets.iet.IetAdm._get_target',
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return_value=1)
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@mock.patch('cinder.privsep.targets.iet.new_target')
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@mock.patch('cinder.privsep.targets.iet.new_logicalunit')
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def test_create_iscsi_target_already_exists(
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self, mock_new_logical_unit, mock_new_target, mock_get_targ):
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self.assertEqual(
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1,
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self.target.create_iscsi_target(
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self.test_vol,
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1,
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0,
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self.fake_volumes_dir))
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self.assertTrue(mock_get_targ.called)
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self.assertTrue(mock_new_target.called)
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self.assertTrue(mock_new_logical_unit.called)
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@mock.patch('cinder.volume.targets.iet.IetAdm._find_sid_cid_for_target',
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return_value=None)
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@mock.patch('os.path.exists', return_value=False)
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@mock.patch('cinder.privsep.targets.iet.delete_logicalunit')
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@mock.patch('cinder.privsep.targets.iet.delete_target')
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def test_remove_iscsi_target(
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self, mock_delete_target,
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mock_delete_logicalunit, mock_exists, mock_find):
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# Test the normal case
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self.target.remove_iscsi_target(1,
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0,
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self.testvol['id'],
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self.testvol['name'])
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mock_delete_logicalunit.assert_called_once_with(1, 0)
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mock_delete_target.assert_called_once_with(1)
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# Test the failure case: putils.ProcessExecutionError
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mock_delete_logicalunit.side_effect = putils.ProcessExecutionError
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self.assertRaises(exception.ISCSITargetRemoveFailed,
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self.target.remove_iscsi_target,
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1,
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0,
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self.testvol['id'],
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self.testvol['name'])
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@mock.patch('cinder.privsep.targets.iet.delete_target')
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def test_find_sid_cid_for_target(self, mock_delete_target):
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tmp_file = io.StringIO()
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tmp_file.write(
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'tid:1 name:iqn.2010-10.org.openstack:'
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'volume-83c2e877-feed-46be-8435-77884fe55b45\n'
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' sid:844427031282176 initiator:'
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'iqn.1994-05.com.redhat:5a6894679665\n'
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' cid:0 ip:10.9.8.7 state:active hd:none dd:none')
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tmp_file.seek(0)
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with mock.patch('builtins.open') as mock_open:
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mock_open.return_value = contextlib.closing(tmp_file)
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self.assertEqual(('844427031282176', '0'),
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self.target._find_sid_cid_for_target(
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'1',
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'iqn.2010-10.org.openstack:'
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'volume-83c2e877-feed-46be-8435-77884fe55b45',
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'volume-83c2e877-feed-46be-8435-77884fe55b45'
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))
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@mock.patch('cinder.volume.targets.iet.IetAdm._get_target',
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return_value=1)
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@mock.patch('cinder.privsep.targets.iet.new_target')
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@mock.patch('cinder.privsep.targets.iet.new_logicalunit')
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@mock.patch('cinder.privsep.targets.iet.new_auth')
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@mock.patch.object(iet.IetAdm, '_get_target_chap_auth')
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def test_create_export(
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self, mock_get_chap, mock_new_auth, mock_new_logicalunit,
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mock_new_target, mock_get_targ):
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mock_get_chap.return_value = ('QZJbisGmn9AL954FNF4D',
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'P68eE7u9eFqDGexd28DQ')
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expected_result = {'location': '10.9.8.7:3260,1 '
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'iqn.2010-10.org.openstack:testvol 0',
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'auth': 'CHAP '
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'QZJbisGmn9AL954FNF4D P68eE7u9eFqDGexd28DQ'}
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ctxt = context.get_admin_context()
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self.assertEqual(expected_result,
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self.target.create_export(ctxt,
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self.testvol,
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self.fake_volumes_dir))
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self.assertTrue(mock_new_logicalunit.called)
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self.assertTrue(mock_new_target.called)
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@mock.patch('cinder.volume.targets.iet.IetAdm._get_target_chap_auth',
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return_value=None)
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@mock.patch('cinder.volume.targets.iet.IetAdm._get_target',
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return_value=1)
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def test_ensure_export(self, mock_get_targetm, mock_get_chap):
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ctxt = context.get_admin_context()
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with mock.patch.object(self.target, 'create_iscsi_target'):
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self.target.ensure_export(ctxt,
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self.testvol,
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self.fake_volumes_dir)
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self.target.create_iscsi_target.assert_called_once_with(
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'iqn.2010-10.org.openstack:testvol',
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1, 0, self.fake_volumes_dir, None,
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portals_ips=[self.configuration.target_ip_address],
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portals_port=int(self.configuration.target_port),
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check_exit_code=False,
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old_name=None)
|
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@ -1,230 +0,0 @@
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
|
||||
# not use this file except in compliance with the License. You may obtain
|
||||
# a copy of the License at
|
||||
#
|
||||
# http://www.apache.org/licenses/LICENSE-2.0
|
||||
#
|
||||
# Unless required by applicable law or agreed to in writing, software
|
||||
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
||||
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
||||
# License for the specific language governing permissions and limitations
|
||||
# under the License.
|
||||
|
||||
import os
|
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import re
|
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import stat
|
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|
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from oslo_concurrency import processutils as putils
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from oslo_log import log as logging
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from oslo_log import versionutils
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from cinder import exception
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import cinder.privsep.targets.iet
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from cinder import utils
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from cinder.volume.targets import iscsi
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LOG = logging.getLogger(__name__)
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class IetAdm(iscsi.ISCSITarget):
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VERSION = '0.1'
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def __init__(self, *args, **kwargs):
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super(IetAdm, self).__init__(*args, **kwargs)
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self.iet_conf = self.configuration.safe_get('iet_conf')
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self.iscsi_iotype = self.configuration.safe_get('iscsi_iotype')
|
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self.auth_type = 'IncomingUser'
|
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self.iet_sessions = '/proc/net/iet/session'
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versionutils.report_deprecated_feature(
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LOG,
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'The IET iSCSI target is deprecated and will be removed in the '
|
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'"V" release. It is recommended to use the LIO or TGT targets '
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'instead.')
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def _get_target(self, iqn):
|
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|
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# Find existing iSCSI target session from /proc/net/iet/session
|
||||
#
|
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# tid:2 name:iqn.2010-10.org:volume-222
|
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# sid:562950561399296 initiator:iqn.1994-05.com:5a6894679665
|
||||
# cid:0 ip:192.168.122.1 state:active hd:none dd:none
|
||||
# tid:1 name:iqn.2010-10.org:volume-111
|
||||
# sid:281475567911424 initiator:iqn.1994-05.com:5a6894679665
|
||||
# cid:0 ip:192.168.122.1 state:active hd:none dd:none
|
||||
|
||||
iscsi_target = 0
|
||||
try:
|
||||
with open(self.iet_sessions, 'r') as f:
|
||||
sessions = f.read()
|
||||
except Exception:
|
||||
LOG.exception("Failed to open iet session list for %s", iqn)
|
||||
raise
|
||||
|
||||
session_list = re.split('(?m)^tid:', sessions)[1:]
|
||||
for ses in session_list:
|
||||
m = re.match(r'(\d+) name:(\S+)\s+', ses)
|
||||
if m and iqn in m.group(2):
|
||||
return m.group(1)
|
||||
|
||||
return iscsi_target
|
||||
|
||||
def _get_iscsi_target(self, context, vol_id):
|
||||
pass
|
||||
|
||||
def _get_target_and_lun(self, context, volume):
|
||||
|
||||
# For ietadm dev starts at lun 0
|
||||
lun = 0
|
||||
|
||||
# Using 0, ietadm tries to search empty tid for creating
|
||||
# new iSCSI target
|
||||
iscsi_target = 0
|
||||
|
||||
# Find existing iSCSI target based on iqn
|
||||
iqn = '%svolume-%s' % (self.iscsi_target_prefix, volume['id'])
|
||||
iscsi_target = self._get_target(iqn)
|
||||
|
||||
return iscsi_target, lun
|
||||
|
||||
def create_iscsi_target(self, name, tid, lun, path,
|
||||
chap_auth=None, **kwargs):
|
||||
|
||||
config_auth = None
|
||||
vol_id = name.split(':')[1]
|
||||
|
||||
# Check the target is already existing.
|
||||
tmp_tid = self._get_target(name)
|
||||
|
||||
# Create a new iSCSI target. If a target already exists,
|
||||
# the command returns 234, but we ignore it.
|
||||
try:
|
||||
cinder.privsep.targets.iet.new_target(name, tid)
|
||||
tid = self._get_target(name)
|
||||
cinder.privsep.targets.iet.new_logicalunit(
|
||||
tid, lun, path, self._iotype(path))
|
||||
|
||||
if chap_auth is not None:
|
||||
(username, password) = chap_auth
|
||||
config_auth = ' '.join((self.auth_type,) + chap_auth)
|
||||
cinder.privsep.targets.iet.new_auth(
|
||||
tid, self.auth_type, username, password)
|
||||
except putils.ProcessExecutionError:
|
||||
LOG.exception("Failed to create iscsi target for volume "
|
||||
"id:%s", vol_id)
|
||||
raise exception.ISCSITargetCreateFailed(volume_id=vol_id)
|
||||
|
||||
# Update config file only if new scsi target is created.
|
||||
if not tmp_tid:
|
||||
self.update_config_file(name, tid, path, config_auth)
|
||||
|
||||
return tid
|
||||
|
||||
def update_config_file(self, name, tid, path, config_auth):
|
||||
|
||||
conf_file = self.iet_conf
|
||||
vol_id = name.split(':')[1]
|
||||
|
||||
# If config file does not exist, create a blank conf file and
|
||||
# add configuration for the volume on the new file.
|
||||
if not os.path.exists(conf_file):
|
||||
try:
|
||||
utils.execute("truncate", conf_file, "--size=0",
|
||||
run_as_root=True)
|
||||
except putils.ProcessExecutionError:
|
||||
LOG.exception("Failed to create %(conf)s for volume "
|
||||
"id:%(vol_id)s",
|
||||
{'conf': conf_file, 'vol_id': vol_id})
|
||||
raise exception.ISCSITargetCreateFailed(volume_id=vol_id)
|
||||
|
||||
try:
|
||||
volume_conf = """
|
||||
Target %s
|
||||
%s
|
||||
Lun 0 Path=%s,Type=%s
|
||||
""" % (name, config_auth, path, self._iotype(path))
|
||||
|
||||
with utils.temporary_chown(conf_file):
|
||||
with open(conf_file, 'a+') as f:
|
||||
f.write(volume_conf)
|
||||
except Exception:
|
||||
LOG.exception("Failed to update %(conf)s for volume "
|
||||
"id:%(vol_id)s",
|
||||
{'conf': conf_file, 'vol_id': vol_id})
|
||||
raise exception.ISCSITargetCreateFailed(volume_id=vol_id)
|
||||
|
||||
def remove_iscsi_target(self, tid, lun, vol_id, vol_name, **kwargs):
|
||||
LOG.info("Removing iscsi_target for volume: %s", vol_id)
|
||||
|
||||
try:
|
||||
cinder.privsep.targets.iet.delete_logicalunit(tid, lun)
|
||||
session_info = self._find_sid_cid_for_target(tid, vol_name, vol_id)
|
||||
if session_info:
|
||||
sid, cid = session_info
|
||||
cinder.privsep.targets.iet.force_delete_target(tid, sid, cid)
|
||||
|
||||
cinder.privsep.targets.iet.delete_target(tid)
|
||||
except putils.ProcessExecutionError:
|
||||
LOG.exception("Failed to remove iscsi target for volume "
|
||||
"id:%s", vol_id)
|
||||
raise exception.ISCSITargetRemoveFailed(volume_id=vol_id)
|
||||
|
||||
vol_uuid_file = vol_name
|
||||
conf_file = self.iet_conf
|
||||
if os.path.exists(conf_file):
|
||||
try:
|
||||
with utils.temporary_chown(conf_file):
|
||||
with open(conf_file, 'r+') as iet_conf_text:
|
||||
full_txt = iet_conf_text.readlines()
|
||||
new_iet_conf_txt = []
|
||||
count = 0
|
||||
for line in full_txt:
|
||||
if count > 0:
|
||||
count -= 1
|
||||
continue
|
||||
elif vol_uuid_file in line:
|
||||
count = 2
|
||||
continue
|
||||
else:
|
||||
new_iet_conf_txt.append(line)
|
||||
|
||||
iet_conf_text.seek(0)
|
||||
iet_conf_text.truncate(0)
|
||||
iet_conf_text.writelines(new_iet_conf_txt)
|
||||
except Exception:
|
||||
LOG.exception("Failed to update %(conf)s for volume id "
|
||||
"%(vol_id)s after removing iscsi target",
|
||||
{'conf': conf_file, 'vol_id': vol_id})
|
||||
raise exception.ISCSITargetRemoveFailed(volume_id=vol_id)
|
||||
else:
|
||||
LOG.warning("Failed to update %(conf)s for volume id "
|
||||
"%(vol_id)s after removing iscsi target. "
|
||||
"%(conf)s does not exist.",
|
||||
{'conf': conf_file, 'vol_id': vol_id})
|
||||
|
||||
def _find_sid_cid_for_target(self, tid, name, vol_id):
|
||||
"""Find sid, cid for existing iscsi target"""
|
||||
|
||||
try:
|
||||
with open(self.iet_sessions, 'r') as f:
|
||||
sessions = f.read()
|
||||
except Exception as e:
|
||||
LOG.info("Failed to open iet session list for "
|
||||
"%(vol_id)s: %(e)s",
|
||||
{'vol_id': vol_id, 'e': e})
|
||||
return None
|
||||
|
||||
session_list = re.split('(?m)^tid:', sessions)[1:]
|
||||
for ses in session_list:
|
||||
m = re.match(r'(\d+) name:(\S+)\s+sid:(\d+).+\s+cid:(\d+)', ses)
|
||||
if m and tid in m.group(1) and name in m.group(2):
|
||||
return m.group(3), m.group(4)
|
||||
|
||||
def _is_block(self, path):
|
||||
mode = os.stat(path).st_mode
|
||||
return stat.S_ISBLK(mode)
|
||||
|
||||
def _iotype(self, path):
|
||||
if self.iscsi_iotype == 'auto':
|
||||
return 'blockio' if self._is_block(path) else 'fileio'
|
||||
else:
|
||||
return self.iscsi_iotype
|
|
@ -0,0 +1,4 @@
|
|||
---
|
||||
upgrade:
|
||||
- |
|
||||
IET iSCSI target removed. IET iSCSI target was deprecated in the V release.
|
Loading…
Reference in New Issue