267 lines
9.5 KiB
Python
267 lines
9.5 KiB
Python
# Copyright 2015 IBM Corp.
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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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"""
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Tests for the IBM FlashSystem iSCSI volume driver.
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"""
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import mock
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import six
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import random
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from cinder import context
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from cinder import exception
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from cinder import test
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from cinder.tests.unit import test_ibm_flashsystem as fscommon
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from cinder import utils
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from cinder.volume import configuration as conf
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from cinder.volume.drivers.ibm import flashsystem_iscsi
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from cinder.volume import volume_types
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class FlashSystemManagementSimulator(fscommon.FlashSystemManagementSimulator):
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def __init__(self):
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# Default protocol is iSCSI
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self._protocol = 'iSCSI'
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self._volumes_list = {}
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self._hosts_list = {}
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self._mappings_list = {}
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self._next_cmd_error = {
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'lsnode': '',
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'lssystem': '',
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'lsmdiskgrp': ''
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}
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self._errors = {
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# CMMVC50000 is a fake error which indicates that command has not
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# got expected results. This error represents kinds of CLI errors.
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'CMMVC50000': ('', 'CMMVC50000 The command can not be executed '
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'successfully.')
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}
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class FlashSystemFakeISCSIDriver(flashsystem_iscsi.FlashSystemISCSIDriver):
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def __init__(self, *args, **kwargs):
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super(FlashSystemFakeISCSIDriver, self).__init__(*args, **kwargs)
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def set_fake_storage(self, fake):
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self.fake_storage = fake
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def _ssh(self, cmd, check_exit_code=True):
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utils.check_ssh_injection(cmd)
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ret = self.fake_storage.execute_command(cmd, check_exit_code)
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return ret
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class FlashSystemISCSIDriverTestCase(test.TestCase):
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def _set_flag(self, flag, value):
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group = self.driver.configuration.config_group
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self.driver.configuration.set_override(flag, value, group)
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def _reset_flags(self):
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self.driver.configuration.local_conf.reset()
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for k, v in self._def_flags.items():
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self._set_flag(k, v)
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def _generate_vol_info(self,
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vol_name,
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vol_size=10,
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vol_status='available'):
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rand_id = six.text_type(random.randint(10000, 99999))
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if not vol_name:
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vol_name = 'test_volume%s' % rand_id
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return {'name': vol_name,
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'size': vol_size,
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'id': '%s' % rand_id,
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'volume_type_id': None,
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'status': vol_status,
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'mdisk_grp_name': 'mdiskgrp0'}
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def _generate_snap_info(self,
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vol_name,
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vol_id,
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vol_size,
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vol_status,
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snap_status='available'):
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rand_id = six.text_type(random.randint(10000, 99999))
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return {'name': 'test_snap_%s' % rand_id,
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'id': rand_id,
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'volume': {'name': vol_name,
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'id': vol_id,
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'size': vol_size,
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'status': vol_status},
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'volume_size': vol_size,
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'status': snap_status,
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'mdisk_grp_name': 'mdiskgrp0'}
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def setUp(self):
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super(FlashSystemISCSIDriverTestCase, self).setUp()
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self._def_flags = {'san_ip': 'hostname',
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'san_login': 'username',
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'san_password': 'password',
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'flashsystem_connection_protocol': 'iSCSI',
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'flashsystem_multipath_enabled': False,
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'flashsystem_multihostmap_enabled': True,
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'iscsi_ip_address': '192.168.1.10',
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'flashsystem_iscsi_portid': 1}
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self.connector = {
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'host': 'flashsystem',
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'wwnns': ['0123456789abcdef', '0123456789abcdeg'],
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'wwpns': ['abcd000000000001', 'abcd000000000002'],
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'initiator': 'iqn.123456'}
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self.sim = FlashSystemManagementSimulator()
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self.driver = FlashSystemFakeISCSIDriver(
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configuration=conf.Configuration(None))
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self.driver.set_fake_storage(self.sim)
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self._reset_flags()
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self.ctxt = context.get_admin_context()
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self.driver.do_setup(None)
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self.driver.check_for_setup_error()
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self.sleeppatch = mock.patch('eventlet.greenthread.sleep')
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self.sleeppatch.start()
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def tearDown(self):
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self.sleeppatch.stop()
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super(FlashSystemISCSIDriverTestCase, self).tearDown()
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def test_flashsystem_do_setup(self):
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# case 1: set as iSCSI
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self.sim.set_protocol('iSCSI')
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self._set_flag('flashsystem_connection_protocol', 'iSCSI')
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self.driver.do_setup(None)
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self.assertEqual('iSCSI', self.driver._protocol)
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# clear environment
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self.sim.set_protocol('iSCSI')
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self._reset_flags()
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def test_flashsystem_validate_connector(self):
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conn_neither = {'host': 'host'}
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conn_iscsi = {'host': 'host', 'initiator': 'foo'}
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conn_both = {'host': 'host', 'initiator': 'foo', 'wwpns': 'bar'}
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protocol = self.driver._protocol
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# case 1: when protocol is iSCSI
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self.driver._protocol = 'iSCSI'
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self.driver.validate_connector(conn_iscsi)
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self.driver.validate_connector(conn_both)
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self.assertRaises(exception.InvalidConnectorException,
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self.driver.validate_connector, conn_neither)
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# clear environment
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self.driver._protocol = protocol
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def test_flashsystem_connection(self):
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# case 1: initialize_connection/terminate_connection with iSCSI
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self.sim.set_protocol('iSCSI')
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self._set_flag('flashsystem_connection_protocol', 'iSCSI')
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self.driver.do_setup(None)
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vol1 = self._generate_vol_info(None)
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self.driver.create_volume(vol1)
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self.driver.initialize_connection(vol1, self.connector)
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self.driver.terminate_connection(vol1, self.connector)
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# clear environment
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self.driver.delete_volume(vol1)
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self.sim.set_protocol('iSCSI')
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self._reset_flags()
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def test_flashsystem_create_host(self):
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# case 1: create host with iqn
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self.sim.set_protocol('iSCSI')
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self._set_flag('flashsystem_connection_protocol', 'iSCSI')
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self.driver.do_setup(None)
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conn = {
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'host': 'flashsystem',
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'wwnns': ['0123456789abcdef', '0123456789abcdeg'],
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'wwpns': ['abcd000000000001', 'abcd000000000002'],
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'initiator': 'iqn.123456'}
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host = self.driver._create_host(conn)
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# case 2: delete host
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self.driver._delete_host(host)
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# clear environment
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self.sim.set_protocol('iSCSI')
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self._reset_flags()
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def test_flashsystem_get_vdisk_params(self):
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# case 1: use default params
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self.driver._get_vdisk_params(None)
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# case 2: use extra params from type
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opts1 = {'storage_protocol': 'iSCSI'}
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opts2 = {'capabilities:storage_protocol': 'iSCSI'}
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opts3 = {'storage_protocol': 'FC'}
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type1 = volume_types.create(self.ctxt, 'opts1', opts1)
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type2 = volume_types.create(self.ctxt, 'opts2', opts2)
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type3 = volume_types.create(self.ctxt, 'opts3', opts3)
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self.assertEqual(
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'iSCSI',
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self.driver._get_vdisk_params(type1['id'])['protocol'])
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self.assertEqual(
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'iSCSI',
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self.driver._get_vdisk_params(type2['id'])['protocol'])
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self.assertRaises(exception.InvalidInput,
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self.driver._get_vdisk_params,
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type3['id'])
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# clear environment
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volume_types.destroy(self.ctxt, type1['id'])
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volume_types.destroy(self.ctxt, type2['id'])
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volume_types.destroy(self.ctxt, type3['id'])
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def test_flashsystem_map_vdisk_to_host(self):
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# case 1: no host found
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vol1 = self._generate_vol_info(None)
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self.driver.create_volume(vol1)
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self.assertEqual(
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# lun id shoud begin with 1
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1,
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self.driver._map_vdisk_to_host(vol1['name'], self.connector))
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# case 2: host already exists
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vol2 = self._generate_vol_info(None)
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self.driver.create_volume(vol2)
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self.assertEqual(
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# lun id shoud be sequential
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2,
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self.driver._map_vdisk_to_host(vol2['name'], self.connector))
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# case 3: test if already mapped
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self.assertEqual(
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1,
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self.driver._map_vdisk_to_host(vol1['name'], self.connector))
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# clean environment
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self.driver._unmap_vdisk_from_host(vol1['name'], self.connector)
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self.driver._unmap_vdisk_from_host(vol2['name'], self.connector)
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self.driver.delete_volume(vol1)
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self.driver.delete_volume(vol2)
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# case 4: If there is no vdisk mapped to host, host should be removed
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self.assertEqual(
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None,
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self.driver._get_host_from_connector(self.connector))
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