115 lines
4.1 KiB
Python
115 lines
4.1 KiB
Python
# Copyright 2016 VMware, Inc.
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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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from oslo_config import cfg
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from vmware_nsx._i18n import _
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from vmware_nsx.common import exceptions as nsx_exc
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DEFAULT_NAME = 'default'
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class ConfiguredAvailabilityZone(object):
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def __init__(self, config_line):
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if config_line:
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values = config_line.split(':')
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if len(values) < 4 or len(values) > 5:
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raise nsx_exc.NsxInvalidConfiguration(
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opt_name="availability_zones",
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opt_value=config_line,
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reason=_("Expected 4 or 5 values per zone"))
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self.name = values[0]
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# field name size in the DB is 36
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if len(self.name) > 36:
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raise nsx_exc.NsxInvalidConfiguration(
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opt_name="availability_zones",
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opt_value=config_line,
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reason=_("Maximum name length is 36"))
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self.resource_pool = values[1]
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self.datastore_id = values[2]
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# validate the edge_ha
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if values[3].lower() == "true":
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self.edge_ha = True
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elif values[3].lower() == "false":
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self.edge_ha = False
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else:
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raise nsx_exc.NsxInvalidConfiguration(
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opt_name="availability_zones",
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opt_value=config_line,
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reason=_("Expected the 4th value to be true/false"))
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# HA datastore id is relevant only with edge_ha
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if not self.edge_ha and len(values) == 5:
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raise nsx_exc.NsxInvalidConfiguration(
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opt_name="availability_zones",
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opt_value=config_line,
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reason=_("Expected HA datastore ID only when edge_ha is "
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"enabled"))
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self.ha_datastore_id = values[4] if len(values) == 5 else None
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else:
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# use the default configuration
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self.name = DEFAULT_NAME
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self.resource_pool = cfg.CONF.nsxv.resource_pool_id
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self.datastore_id = cfg.CONF.nsxv.datastore_id
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self.edge_ha = cfg.CONF.nsxv.edge_ha
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self.ha_datastore_id = cfg.CONF.nsxv.ha_datastore_id
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class ConfiguredAvailabilityZones(object):
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def __init__(self):
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self.availability_zones = {}
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# Add the configured availability zones
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for az in cfg.CONF.nsxv.availability_zones:
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obj = ConfiguredAvailabilityZone(az)
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self.availability_zones[obj.name] = obj
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# add a default entry
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obj = ConfiguredAvailabilityZone(None)
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self.availability_zones[obj.name] = obj
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def get_resources(self):
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"""Return a list of all the resources in all the availability zones
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"""
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resources = []
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for az in self.availability_zones.values():
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resources.append(az.resource_pool)
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resources.append(az.datastore_id)
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if az.ha_datastore_id:
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resources.append(az.ha_datastore_id)
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return resources
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def get_availability_zone(self, name):
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"""Return an availability zone object by its name
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"""
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if name in self.availability_zones.keys():
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return self.availability_zones[name]
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def get_default_availability_zone(self):
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"""Return the default availability zone object
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"""
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return self.availability_zones[DEFAULT_NAME]
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def list_availability_zones(self):
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"""Return a list of availability zones names
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"""
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return self.availability_zones.keys()
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