Source code for volume.admin.test_backends_capabilities

# Copyright 2016 OpenStack Foundation
# All Rights Reserved.
#    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
#    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 operator

from tempest.api.volume import base
from tempest.lib import decorators

[docs]class BackendsCapabilitiesAdminTestsJSON(base.BaseVolumeAdminTest): """Test backends capabilities""" @classmethod def resource_setup(cls): super(BackendsCapabilitiesAdminTestsJSON, cls).resource_setup() # Get host list, formation: host@backend-name cls.hosts = [ pool['name'] for pool in cls.admin_scheduler_stats_client.list_pools()['pools'] ]
[docs] @decorators.idempotent_id('3750af44-5ea2-4cd4-bc3e-56e7e6caf854') def test_get_capabilities_backend(self): """Test getting backend capabilities""" # Check response schema self.admin_capabilities_client.show_backend_capabilities(self.hosts[0])
@staticmethod def _change_capabilities_storage_protocol(capabilities): """Convert storage_protocol to its canonical version""" # List of storage protocols variants defined in cinder.common.constants # The canonical name for storage protocol comes first in the list VARIANTS = [['iSCSI', 'iscsi'], ['FC', 'fibre_channel', 'fc'], ['NFS', 'nfs'], ['NVMe-oF', 'NVMeOF', 'nvmeof']] capabilities = sorted(list(capabilities)) # Cinder Bug #1966103: Some drivers were reporting different strings # to represent the same storage protocol. For backward compatibility, # the scheduler can handle the variants, but to standardize this for # operators (who may need to refer to the protocol in volume-type # extra-specs), the get-pools and get-capabilities response was changed # to only report the canonical name for a storage protocol, but these # 2 REST API call swere not changed simultaneously, so we may or may # not get canonical names, so just convert canonical names. for item in range(len(capabilities)): for variants in VARIANTS: if capabilities[item][2] in variants: capabilities[item] = (capabilities[item][0], capabilities[item][1], variants[0]) return capabilities
[docs] @decorators.idempotent_id('a9035743-d46a-47c5-9cb7-3c80ea16dea0') def test_compare_volume_stats_values(self): """Test comparing volume stats values Compare volume stats between show_backend_capabilities and show_pools. """ VOLUME_STATS = ('vendor_name', 'volume_backend_name', 'storage_protocol') # Get list backend capabilities using show_pools cinder_pools = [ pool['capabilities'] for pool in self.admin_scheduler_stats_client.list_pools(detail=True)['pools'] ] # Get list backends capabilities using show_backend_capabilities capabilities = [ self.admin_capabilities_client.show_backend_capabilities( host=host) for host in self.hosts ] # Returns a tuple of VOLUME_STATS values expected_list = self._change_capabilities_storage_protocol( map(operator.itemgetter(*VOLUME_STATS), cinder_pools)) observed_list = self._change_capabilities_storage_protocol( map(operator.itemgetter(*VOLUME_STATS), capabilities)) self.assertEqual(expected_list, observed_list)