charm-interface-bind-rndc/provides.py

62 lines
2.1 KiB
Python

#!/usr/bin/python
#
# Copyright 2016 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.
from charms.reactive import RelationBase
from charms.reactive import hook
from charms.reactive import scopes
from charms.reactive.bus import get_states
from charmhelpers.core import hookenv
from charmhelpers.contrib.network import ip as ch_ip
class BindRNDCProvides(RelationBase):
scope = scopes.UNIT
@hook('{provides:bind-rndc}-relation-joined')
def joined(self):
conv = self.conversation()
conv.set_state('{relation_name}.related')
conv.set_remote('private-address',
ch_ip.get_relation_ip(conv.relation_name))
hookenv.log('States: {}'.format(get_states().keys()))
@hook('{provides:bind-rndc}-relation-departed')
def departed(self):
conv = self.conversation()
conv.remove_state('{relation_name}.related')
def send_rndckey_info(self, rndckey, algorithm):
for conv in self.conversations():
conv.set_remote('rndckey', rndckey)
conv.set_remote('algorithm', algorithm)
def client_ips(self):
ips = []
for conv in self.conversations():
ips.append(conv.get_remote('private-address'))
return ips
def egress_subnets(self):
cidrs = []
for conv in self.conversations():
egress_subnets = conv.get_remote('egress-subnets')
if egress_subnets:
# NOTE: egress-subnets is potentially a comma
# delimited list
cidrs.extend(egress_subnets.split(','))
return cidrs