charm-interface-ovsdb/src/ovsdb_cms/requires.py

58 lines
1.9 KiB
Python

# Copyright 2018 Canonical Ltd
#
# 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.
# the reactive framework unfortunately does not grok `import as` in conjunction
# with decorators on class instance methods, so we have to revert to `from ...`
# imports
import inspect
import charmhelpers.core as ch_core
import charms.reactive as reactive
from charms.reactive import (
when,
)
from .lib import ovsdb as ovsdb
class OVSDBCMSRequires(ovsdb.OVSDB):
def publish_cms_client_bound_addr(self):
"""Announce address on relation.
This will be used by our peers to grant access.
"""
for relation in self.relations:
relation.to_publish['cms-client-bound-address'] = (
self._endpoint_local_bound_addr())
@when('endpoint.{endpoint_name}.joined')
def joined(self):
ch_core.hookenv.log('{}: {} -> {}'
.format(self._endpoint_name,
type(self).__name__,
inspect.currentframe().f_code.co_name),
level=ch_core.hookenv.INFO)
super().joined()
self.publish_cms_client_bound_addr()
if self.expected_units_available():
reactive.set_flag(self.expand_name('{endpoint_name}.available'))
@when('endpoint.{endpoint_name}.broken')
def broken(self):
super().broken()