Testing OpenStack upgrades
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tobiko/tobiko/openstack/nova/_hypervisor.py

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2.8 KiB

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