822e568921
This patch just adjust import order to follow PEP8 imports rule. See http://www.python.org/dev/peps/pep-0008/#imports Imports should be grouped in the following order: 1) Standard library imports 2) Related third party imports 3) Local application/library specific imports Change-Id: Ifb56bbe6ba1ed7682c3326d6429fb34d268e7ea4
89 lines
3.5 KiB
Python
89 lines
3.5 KiB
Python
# Copyright (c) 2013 Bull.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from novaclient import exceptions as nova_exceptions
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from oslo.config import cfg
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from climate import context
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from climate.manager import exceptions as manager_exceptions
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from climate.plugins import oshosts as plugin
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from climate.utils.openstack import nova
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class NovaInventory(nova.NovaClientWrapper):
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def __init__(self):
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super(NovaInventory, self).__init__()
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self.ctx = context.current()
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# Used by nova cli
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config = cfg.CONF[plugin.RESOURCE_TYPE]
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self.username = config.climate_username
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self.api_key = config.climate_password
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self.project_id = config.climate_project_name
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def get_host_details(self, host):
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"""Get Nova capabilities of a single host
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:param host: UUID or name of nova-compute host
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:return: Dict of capabilities or raise HostNotFound
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"""
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try:
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hypervisor = self.nova.hypervisors.get(host)
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except nova_exceptions.NotFound:
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try:
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hypervisors_list = self.nova.hypervisors.search(host)
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except nova_exceptions.NotFound:
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raise manager_exceptions.HostNotFound(host=host)
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if len(hypervisors_list) > 1:
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raise manager_exceptions.MultipleHostsFound(host)
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else:
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hypervisor_id = hypervisors_list[0].id
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# NOTE(sbauza): No need to catch the exception as we're sure
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# that the hypervisor exists
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hypervisor = self.nova.hypervisors.get(hypervisor_id)
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try:
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return {'id': hypervisor.id,
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'hypervisor_hostname': hypervisor.hypervisor_hostname,
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'service_name': hypervisor.service['host'],
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'vcpus': hypervisor.vcpus,
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'cpu_info': hypervisor.cpu_info,
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'hypervisor_type': hypervisor.hypervisor_type,
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'hypervisor_version': hypervisor.hypervisor_version,
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'memory_mb': hypervisor.memory_mb,
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'local_gb': hypervisor.local_gb}
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except AttributeError:
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raise manager_exceptions.InvalidHost(host=host)
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def get_servers_per_host(self, host):
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"""List all servers of a nova-compute host
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:param host: Name (not UUID) of nova-compute host
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:return: Dict of servers or None
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"""
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try:
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hypervisors_list = self.nova.hypervisors.search(host, servers=True)
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except nova_exceptions.NotFound:
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raise manager_exceptions.HostNotFound(host=host)
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if len(hypervisors_list) > 1:
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raise manager_exceptions.MultipleHostsFound(host)
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else:
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try:
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return hypervisors_list[0].servers
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except AttributeError:
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# NOTE(sbauza): nova.hypervisors.search(servers=True) returns
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# a list of hosts without 'servers' attribute if no servers
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# are running on that host
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return None
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