148 lines
4.9 KiB
Python
148 lines
4.9 KiB
Python
# Copyright 2012 Managed I.T.
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#
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# Author: Kiall Mac Innes <kiall@managedit.ie>
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# Author: Endre Karlson <endre.karlson@bouvet.no>
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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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import abc
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from moniker.openstack.common import cfg
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from moniker.openstack.common import log as logging
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from moniker.central import rpcapi as central_rpcapi
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from moniker.context import MonikerContext
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from moniker.plugin import Plugin
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LOG = logging.getLogger(__name__)
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central_api = central_rpcapi.CentralAPI()
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def get_ip_data(addr_dict):
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ip = addr_dict['address']
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version = addr_dict['version']
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data = {
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'ip_version': version
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}
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# TODO: Add v6 support
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if version == 4:
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data['ip_address'] = ip.replace('.', '-')
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ip_data = ip.split(".")
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for i in [0, 1, 2, 3]:
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data["octet%s" % i] = ip_data[i]
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return data
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class Handler(Plugin):
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""" Base class for notification handlers """
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__plugin_ns__ = 'moniker.notification.handler'
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__plugin_type__ = 'handler'
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@abc.abstractmethod
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def get_exchange_topics(self):
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"""
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Returns a tuple of (exchange, list(topics)) this handler wishes
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to receive notifications from.
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"""
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@abc.abstractmethod
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def get_event_types(self):
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"""
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Returns a list of event types this handler is capable of processing
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"""
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@abc.abstractmethod
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def process_notification(self, event_type, payload):
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""" Processes a given notification """
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def get_domain(self, domain_id):
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"""
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Return the domain for this context
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"""
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context = MonikerContext.get_admin_context()
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return central_api.get_domain(context, domain_id)
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class BaseAddressHandler(Handler):
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default_format = '%(octet0)s-%(octet1)s-%(octet2)s-%(octet3)s.%(domain)s'
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def _get_format(self):
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return cfg.CONF[self.name].get('format') or self.default_format
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def _create(self, addresses, extra, managed=True,
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resource_type=None, resource_id=None):
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"""
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Create a a record from addresses
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:param addresses: Address objects like
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{'version': 4, 'ip': '10.0.0.1'}
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:param extra: Extra data to use when formatting the record
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:param managed: Is it a managed resource
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:param resource_type: The managed resource type
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:param resource_id: The managed resource ID
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"""
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LOG.debug('Using DomainID: %s' % cfg.CONF[self.name].domain_id)
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domain = self.get_domain(cfg.CONF[self.name].domain_id)
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LOG.debug('Domain: %r' % domain)
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data = extra.copy()
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data['domain'] = domain['name']
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context = MonikerContext.get_admin_context()
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for addr in addresses:
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record_data = data.copy()
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record_data.update(get_ip_data(addr))
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record_name = self._get_format() % record_data
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record_values = {
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'type': 'A' if addr['version'] == 4 else 'AAAA',
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'name': record_name,
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'data': addr['address']}
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if managed:
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record_values.update({
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'managed': managed,
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'managed_plugin_name': self.get_plugin_name(),
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'managed_plugin_type': self.get_plugin_type(),
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'managed_resource_type': resource_type,
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'managed_resource_id': resource_id})
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central_api.create_record(context, domain['id'], record_values)
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def _delete(self, managed=True, resource_id=None, resource_type='instance',
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criterion={}):
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"""
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Handle a generic delete of a fixed ip within a domain
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:param criterion: Criterion to search and destroy records
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"""
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context = MonikerContext.get_admin_context()
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if managed:
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criterion.update({
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'managed': managed,
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'managed_plugin_name': self.get_plugin_name(),
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'managed_plugin_type': self.get_plugin_type(),
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'managed_resource_id': resource_id,
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'managed_resource_type': resource_type
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})
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records = central_api.get_records(context,
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cfg.CONF[self.name].domain_id,
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criterion)
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for record in records:
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LOG.debug('Deleting record %s' % record['id'])
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central_api.delete_record(context, cfg.CONF[self.name].domain_id,
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record['id'])
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