charm/openvim/interface-openvim/provides.py

   1 ##
   2 # Copyright 2016
   3 # This file is part of openvim
   4 #
   5 # Licensed under the Apache License, Version 2.0 (the "License"); you may
   6 # not use this file except in compliance with the License. You may obtain
   7 # a copy of the License at
   8 #
   9 #         http://www.apache.org/licenses/LICENSE-2.0
  10 #
  11 # Unless required by applicable law or agreed to in writing, software
  12 # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  13 # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
  14 # License for the specific language governing permissions and limitations
  15 # under the License.
  16 #
  17 ##
  18
  19 from charmhelpers.core import hookenv
  20 from charms.reactive import hook
  21 from charms.reactive import RelationBase
  22 from charms.reactive import scopes
  23
  24
  25 class OpenVimProvides(RelationBase):
  26     scope = scopes.GLOBAL
  27
  28     @hook('{provides:openvim}-relation-{joined,changed}')
  29     def changed(self):
  30         self.set_state('{relation_name}.available')
  31
  32     @hook('{provides:openvim}-relation-{broken,departed}')
  33     def broken(self):
  34         self.remove_state('{relation_name}.available')
  35
  36     def configure(self, port, user):
  37         relation_info = {
  38             'hostname': hookenv.unit_get('private-address'),
  39             'port': port,
  40             'user': user,
  41         }
  42         self.set_remote(**relation_info)