204 lines
7.7 KiB
Python
204 lines
7.7 KiB
Python
# Copyright (c) 2012 OpenStack Foundation
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# All Rights Reserved.
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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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"""The hypervisors admin extension."""
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import webob.exc
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from nova.api.openstack import common
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from nova.api.openstack import extensions
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from nova.api.openstack import wsgi
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from nova import compute
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from nova import exception
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from nova.i18n import _
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from nova import servicegroup
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ALIAS = "os-hypervisors"
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authorize = extensions.os_compute_authorizer(ALIAS)
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class HypervisorsController(wsgi.Controller):
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"""The Hypervisors API controller for the OpenStack API."""
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def __init__(self):
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self.host_api = compute.HostAPI()
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self.servicegroup_api = servicegroup.API()
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super(HypervisorsController, self).__init__()
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def _view_hypervisor(self, hypervisor, service, detail, servers=None,
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**kwargs):
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alive = self.servicegroup_api.service_is_up(service)
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hyp_dict = {
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'id': hypervisor.id,
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'hypervisor_hostname': hypervisor.hypervisor_hostname,
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'state': 'up' if alive else 'down',
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'status': ('disabled' if service.disabled
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else 'enabled'),
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}
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if detail and not servers:
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for field in ('vcpus', 'memory_mb', 'local_gb', 'vcpus_used',
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'memory_mb_used', 'local_gb_used',
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'hypervisor_type', 'hypervisor_version',
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'free_ram_mb', 'free_disk_gb', 'current_workload',
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'running_vms', 'cpu_info', 'disk_available_least',
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'host_ip'):
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hyp_dict[field] = hypervisor[field]
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hyp_dict['service'] = {
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'id': service.id,
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'host': hypervisor.host,
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'disabled_reason': service.disabled_reason,
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}
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if servers:
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hyp_dict['servers'] = [dict(name=serv['name'], uuid=serv['uuid'])
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for serv in servers]
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# Add any additional info
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if kwargs:
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hyp_dict.update(kwargs)
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return hyp_dict
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@extensions.expected_errors(())
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def index(self, req):
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context = req.environ['nova.context']
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authorize(context)
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compute_nodes = self.host_api.compute_node_get_all(context)
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req.cache_db_compute_nodes(compute_nodes)
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return dict(hypervisors=[self._view_hypervisor(
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hyp,
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self.host_api.service_get_by_compute_host(
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context, hyp.host),
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False)
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for hyp in compute_nodes])
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@extensions.expected_errors(())
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def detail(self, req):
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context = req.environ['nova.context']
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authorize(context)
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compute_nodes = self.host_api.compute_node_get_all(context)
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req.cache_db_compute_nodes(compute_nodes)
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return dict(hypervisors=[self._view_hypervisor(
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hyp,
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self.host_api.service_get_by_compute_host(
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context, hyp.host),
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True)
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for hyp in compute_nodes])
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@extensions.expected_errors(404)
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def show(self, req, id):
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context = req.environ['nova.context']
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authorize(context)
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try:
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hyp = self.host_api.compute_node_get(context, id)
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req.cache_db_compute_node(hyp)
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except (ValueError, exception.ComputeHostNotFound):
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msg = _("Hypervisor with ID '%s' could not be found.") % id
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raise webob.exc.HTTPNotFound(explanation=msg)
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service = self.host_api.service_get_by_compute_host(
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context, hyp.host)
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return dict(hypervisor=self._view_hypervisor(hyp, service, True))
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@extensions.expected_errors((404, 501))
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def uptime(self, req, id):
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context = req.environ['nova.context']
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authorize(context)
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try:
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hyp = self.host_api.compute_node_get(context, id)
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req.cache_db_compute_node(hyp)
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except (ValueError, exception.ComputeHostNotFound):
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msg = _("Hypervisor with ID '%s' could not be found.") % id
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raise webob.exc.HTTPNotFound(explanation=msg)
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# Get the uptime
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try:
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host = hyp.host
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uptime = self.host_api.get_host_uptime(context, host)
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except NotImplementedError:
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common.raise_feature_not_supported()
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service = self.host_api.service_get_by_compute_host(context, host)
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return dict(hypervisor=self._view_hypervisor(hyp, service, False,
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uptime=uptime))
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@extensions.expected_errors(404)
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def search(self, req, id):
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context = req.environ['nova.context']
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authorize(context)
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hypervisors = self.host_api.compute_node_search_by_hypervisor(
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context, id)
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if hypervisors:
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return dict(hypervisors=[self._view_hypervisor(
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hyp,
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self.host_api.service_get_by_compute_host(
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context, hyp.host),
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False)
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for hyp in hypervisors])
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else:
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msg = _("No hypervisor matching '%s' could be found.") % id
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raise webob.exc.HTTPNotFound(explanation=msg)
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@extensions.expected_errors(404)
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def servers(self, req, id):
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context = req.environ['nova.context']
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authorize(context)
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compute_nodes = self.host_api.compute_node_search_by_hypervisor(
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context, id)
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if not compute_nodes:
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msg = _("No hypervisor matching '%s' could be found.") % id
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raise webob.exc.HTTPNotFound(explanation=msg)
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hypervisors = []
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for compute_node in compute_nodes:
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instances = self.host_api.instance_get_all_by_host(context,
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compute_node.host)
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service = self.host_api.service_get_by_compute_host(
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context, compute_node.host)
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hyp = self._view_hypervisor(compute_node, service, False,
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instances)
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hypervisors.append(hyp)
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return dict(hypervisors=hypervisors)
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@extensions.expected_errors(())
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def statistics(self, req):
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context = req.environ['nova.context']
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authorize(context)
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stats = self.host_api.compute_node_statistics(context)
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return dict(hypervisor_statistics=stats)
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class Hypervisors(extensions.V21APIExtensionBase):
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"""Admin-only hypervisor administration."""
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name = "Hypervisors"
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alias = ALIAS
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version = 1
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def get_resources(self):
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resources = [extensions.ResourceExtension(ALIAS,
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HypervisorsController(),
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collection_actions={'detail': 'GET',
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'statistics': 'GET'},
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member_actions={'uptime': 'GET',
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'search': 'GET',
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'servers': 'GET'})]
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return resources
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def get_controller_extensions(self):
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return []
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