90 lines
2.8 KiB
Python
90 lines
2.8 KiB
Python
# Copyright 2019 Red Hat
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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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from __future__ import absolute_import
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import collections
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import tobiko
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from tobiko.openstack.nova import _client
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class HypervisorListFixture(tobiko.SharedFixture):
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client = None
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hypervisors = None
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def setup_fixture(self):
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self.setup_client()
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self.get_hypervisors()
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def setup_client(self):
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self.client = _client.get_nova_client()
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def get_hypervisors(self):
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self.hypervisors = _client.list_hypervisors(client=self.client)
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def get_hypervisors(**params):
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hypervisors = tobiko.setup_fixture(HypervisorListFixture).hypervisors
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return tobiko.select(hypervisors).with_attributes(**params)
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def missing_hypervisors(count=1, **params):
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agents = get_hypervisors(**params)
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return max(0, count - len(agents))
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def skip_if_missing_hypervisors(count=1, **params):
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message = "missing {return_value!r} hypervisor(s)"
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if params:
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message += " with {!s}".format(
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', '.join("{!s}={!r}".format(k, v) for k, v in params.items()))
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return tobiko.skip_if(message, missing_hypervisors, count=count,
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**params)
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def get_same_host_hypervisors(servers, hypervisor):
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host_hypervisors = get_servers_hypervisors(servers)
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same_host_server_ids = host_hypervisors.pop(hypervisor, None)
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if same_host_server_ids:
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return {hypervisor: same_host_server_ids}
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else:
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return {}
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def get_different_host_hypervisors(servers, hypervisor):
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host_hypervisors = get_servers_hypervisors(servers)
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host_hypervisors.pop(hypervisor, None)
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return host_hypervisors
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def get_servers_hypervisors(servers, client=None):
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hypervisors = collections.defaultdict(list)
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for server in (servers or list()):
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client = _client.nova_client(client)
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if isinstance(server, str):
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server_id = server
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server = _client.get_server(server_id, client=client)
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else:
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server_id = server.id
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hypervisor = get_server_hypervisor(server)
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hypervisors[hypervisor].append(server_id)
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return hypervisors
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def get_server_hypervisor(server, client=None):
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if isinstance(server, str):
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server = _client.get_server(server, client=client)
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return getattr(server, 'OS-EXT-SRV-ATTR:host')
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