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