77 lines
2.6 KiB
Python
77 lines
2.6 KiB
Python
#
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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 nova.api.openstack import common
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from nova.api.openstack import wsgi
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from nova.compute import api as compute
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from nova.policies import server_topology as st_policies
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class ServerTopologyController(wsgi.Controller):
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def __init__(self, *args, **kwargs):
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super(ServerTopologyController, self).__init__(*args, **kwargs)
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self.compute_api = compute.API()
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@wsgi.Controller.api_version("2.78")
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@wsgi.expected_errors(404)
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def index(self, req, server_id):
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context = req.environ["nova.context"]
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instance = common.get_instance(self.compute_api, context, server_id,
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expected_attrs=['numa_topology',
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'vcpu_model'])
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context.can(st_policies.BASE_POLICY_NAME % 'index',
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target={'project_id': instance.project_id})
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host_policy = (st_policies.BASE_POLICY_NAME % 'host:index')
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show_host_info = context.can(host_policy,
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target={'project_id': instance.project_id}, fatal=False)
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return self._get_numa_topology(context, instance, show_host_info)
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def _get_numa_topology(self, context, instance, show_host_info):
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if instance.numa_topology is None:
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return {
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'nodes': [],
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'pagesize_kb': None
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}
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topo = {}
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cells = []
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pagesize_kb = None
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for cell_ in instance.numa_topology.cells:
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cell = {}
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cell['vcpu_set'] = cell_.total_cpus
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cell['siblings'] = cell_.siblings
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cell['memory_mb'] = cell_.memory
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if show_host_info:
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cell['host_node'] = cell_.id
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if cell_.cpu_pinning is None:
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cell['cpu_pinning'] = {}
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else:
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cell['cpu_pinning'] = cell_.cpu_pinning
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if cell_.pagesize:
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pagesize_kb = cell_.pagesize
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cells.append(cell)
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topo['nodes'] = cells
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topo['pagesize_kb'] = pagesize_kb
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return topo
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