119 lines
4.8 KiB
Python
119 lines
4.8 KiB
Python
# Copyright 2012 OpenStack Foundation
|
|
#
|
|
# 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 nova.api.openstack import wsgi
|
|
from nova import availability_zones
|
|
from nova import compute
|
|
import nova.conf
|
|
from nova.policies import availability_zone as az_policies
|
|
from nova import servicegroup
|
|
|
|
CONF = nova.conf.CONF
|
|
ATTRIBUTE_NAME = "availability_zone"
|
|
|
|
|
|
class AvailabilityZoneController(wsgi.Controller):
|
|
"""The Availability Zone API controller for the OpenStack API."""
|
|
|
|
def __init__(self):
|
|
super(AvailabilityZoneController, self).__init__()
|
|
self.servicegroup_api = servicegroup.API()
|
|
self.host_api = compute.HostAPI()
|
|
|
|
def _get_filtered_availability_zones(self, zones, is_available):
|
|
result = []
|
|
for zone in zones:
|
|
# Hide internal_service_availability_zone
|
|
if zone == CONF.internal_service_availability_zone:
|
|
continue
|
|
result.append({'zoneName': zone,
|
|
'zoneState': {'available': is_available},
|
|
"hosts": None})
|
|
return result
|
|
|
|
def _describe_availability_zones(self, context, **kwargs):
|
|
ctxt = context.elevated()
|
|
available_zones, not_available_zones = \
|
|
availability_zones.get_availability_zones(ctxt)
|
|
|
|
filtered_available_zones = \
|
|
self._get_filtered_availability_zones(available_zones, True)
|
|
filtered_not_available_zones = \
|
|
self._get_filtered_availability_zones(not_available_zones, False)
|
|
return {'availabilityZoneInfo': filtered_available_zones +
|
|
filtered_not_available_zones}
|
|
|
|
def _describe_availability_zones_verbose(self, context, **kwargs):
|
|
ctxt = context.elevated()
|
|
available_zones, not_available_zones = \
|
|
availability_zones.get_availability_zones(ctxt)
|
|
|
|
# Available services
|
|
enabled_services = self.host_api.service_get_all(
|
|
context, {'disabled': False}, set_zones=True, all_cells=True)
|
|
|
|
zone_hosts = {}
|
|
host_services = {}
|
|
api_services = ('nova-osapi_compute', 'nova-ec2', 'nova-metadata')
|
|
for service in enabled_services:
|
|
if service.binary in api_services:
|
|
# Skip API services in the listing since they are not
|
|
# maintained in the same way as other services
|
|
continue
|
|
zone_hosts.setdefault(service['availability_zone'], [])
|
|
if service['host'] not in zone_hosts[service['availability_zone']]:
|
|
zone_hosts[service['availability_zone']].append(
|
|
service['host'])
|
|
|
|
host_services.setdefault(service['availability_zone'] +
|
|
service['host'], [])
|
|
host_services[service['availability_zone'] + service['host']].\
|
|
append(service)
|
|
|
|
result = []
|
|
for zone in available_zones:
|
|
hosts = {}
|
|
for host in zone_hosts.get(zone, []):
|
|
hosts[host] = {}
|
|
for service in host_services[zone + host]:
|
|
alive = self.servicegroup_api.service_is_up(service)
|
|
hosts[host][service['binary']] = {'available': alive,
|
|
'active': True != service['disabled'],
|
|
'updated_at': service['updated_at']}
|
|
result.append({'zoneName': zone,
|
|
'zoneState': {'available': True},
|
|
"hosts": hosts})
|
|
|
|
for zone in not_available_zones:
|
|
result.append({'zoneName': zone,
|
|
'zoneState': {'available': False},
|
|
"hosts": None})
|
|
return {'availabilityZoneInfo': result}
|
|
|
|
@wsgi.expected_errors(())
|
|
def index(self, req):
|
|
"""Returns a summary list of availability zone."""
|
|
context = req.environ['nova.context']
|
|
context.can(az_policies.POLICY_ROOT % 'list')
|
|
|
|
return self._describe_availability_zones(context)
|
|
|
|
@wsgi.expected_errors(())
|
|
def detail(self, req):
|
|
"""Returns a detailed list of availability zone."""
|
|
context = req.environ['nova.context']
|
|
context.can(az_policies.POLICY_ROOT % 'detail')
|
|
|
|
return self._describe_availability_zones_verbose(context)
|