Source code for volume.admin.test_multi_backend

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#         http://www.apache.org/licenses/LICENSE-2.0
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from tempest.api.volume import base
from tempest.common import waiters
from tempest import config
from tempest.lib.common.utils import data_utils
from tempest.lib import decorators

CONF = config.CONF


[docs]class VolumeMultiBackendTest(base.BaseVolumeAdminTest): """Test volume multi backends""" @classmethod def skip_checks(cls): super(VolumeMultiBackendTest, cls).skip_checks() if not CONF.volume_feature_enabled.multi_backend: raise cls.skipException("Cinder multi-backend feature disabled") if len(set(CONF.volume.backend_names)) < 2: raise cls.skipException("Requires at least two different " "backend names") @classmethod def resource_setup(cls): super(VolumeMultiBackendTest, cls).resource_setup() # read backend name from a list . backend_names = set(CONF.volume.backend_names) cls.volume_id_list_with_prefix = [] cls.volume_id_list_without_prefix = [] # Volume/Type creation (uses volume_backend_name) # It is not allowed to create the same backend name twice for backend_name in backend_names: # Volume/Type creation (uses backend_name) cls._create_type_and_volume(backend_name, False) # Volume/Type creation (uses capabilities:volume_backend_name) cls._create_type_and_volume(backend_name, True) @classmethod def _create_type_and_volume(cls, backend_name_key, with_prefix): # Volume/Type creation type_name = data_utils.rand_name(cls.__name__ + '-Type') vol_name = data_utils.rand_name(cls.__name__ + '-Volume') spec_key_with_prefix = "capabilities:volume_backend_name" spec_key_without_prefix = "volume_backend_name" if with_prefix: extra_specs = {spec_key_with_prefix: backend_name_key} else: extra_specs = {spec_key_without_prefix: backend_name_key} cls.create_volume_type(name=type_name, extra_specs=extra_specs) params = {'name': vol_name, 'volume_type': type_name, 'size': CONF.volume.volume_size} cls.volume = cls.create_volume(**params) if with_prefix: cls.volume_id_list_with_prefix.append(cls.volume['id']) else: cls.volume_id_list_without_prefix.append( cls.volume['id']) waiters.wait_for_volume_resource_status(cls.admin_volume_client, cls.volume['id'], 'available')
[docs] @decorators.idempotent_id('c1a41f3f-9dad-493e-9f09-3ff197d477cc') def test_backend_name_reporting(self): """Test backend name reporting for volume when type is without prefix 1. Create volume type, with 'volume_backend_name' as extra spec key 2. Create volume using the created volume type 3. Check 'os-vol-host-attr:host' of the volume info, the value should contain '@' character, like 'cinder@CloveStorage#tecs_backend' """ for volume_id in self.volume_id_list_without_prefix: self._test_backend_name_reporting_by_volume_id(volume_id)
[docs] @decorators.idempotent_id('f38e647f-ab42-4a31-a2e7-ca86a6485215') def test_backend_name_reporting_with_prefix(self): """Test backend name reporting for volume when type is with prefix 1. Create volume type, with 'capabilities:volume_backend_name' as extra spec key 2. Create volume using the created volume type 3. Check 'os-vol-host-attr:host' of the volume info, the value should contain '@' character, like 'cinder@CloveStorage#tecs_backend' """ for volume_id in self.volume_id_list_with_prefix: self._test_backend_name_reporting_by_volume_id(volume_id)
[docs] @decorators.idempotent_id('46435ab1-a0af-4401-8373-f14e66b0dd58') def test_backend_name_distinction(self): """Test volume backend distinction when type is without prefix 1. For each backend, create volume type with 'volume_backend_name' as extra spec key 2. Create volumes using the created volume types 3. Check 'os-vol-host-attr:host' of each created volume is different. """ self._test_backend_name_distinction(self.volume_id_list_without_prefix)
[docs] @decorators.idempotent_id('4236305b-b65a-4bfc-a9d2-69cb5b2bf2ed') def test_backend_name_distinction_with_prefix(self): """Test volume backend distinction when type is with prefix 1. For each backend, create volume type with 'capabilities:volume_backend_name' as extra spec key 2. Create volumes using the created volume types 3. Check 'os-vol-host-attr:host' of each created volume is different. """ self._test_backend_name_distinction(self.volume_id_list_with_prefix)
def _get_volume_host(self, volume_id): return self.admin_volume_client.show_volume( volume_id)['volume']['os-vol-host-attr:host'] def _test_backend_name_reporting_by_volume_id(self, volume_id): # this test checks if os-vol-attr:host is populated correctly after # the multi backend feature has been enabled # if multi-backend is enabled: os-vol-attr:host should be like: # host@backend_name volume = self.admin_volume_client.show_volume(volume_id)['volume'] volume1_host = volume['os-vol-host-attr:host'] msg = ("multi-backend reporting incorrect values for volume %s" % volume_id) self.assertGreater(len(volume1_host.split("@")), 1, msg) def _test_backend_name_distinction(self, volume_id_list): # this test checks that the volumes created at setUp don't # belong to the same backend (if they are, than the # volume backend distinction is not working properly) volume_hosts = [self._get_volume_host(volume) for volume in volume_id_list] # assert that volumes are each created on separate hosts: msg = ("volumes %s were created in the same backend" % ", " .join(volume_hosts)) self.assertCountEqual(volume_hosts, set(volume_hosts), msg)