charm/openvim/interface-openvim-compute/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 charms.reactive import hook
  20 from charms.reactive import RelationBase
  21 from charms.reactive import scopes
  22
  23
  24 class ProvidesOpenVIMCompute(RelationBase):
  25     scope = scopes.GLOBAL
  26
  27     auto_accessors = ['ssh_key']
  28
  29     @hook('{provides:openvim-compute}-relation-{joined,changed}')
  30     def changed(self):
  31         self.set_state('{relation_name}.connected')
  32         if self.ssh_key():
  33             self.set_state('{relation_name}.available')
  34
  35     @hook('{provides:openvim-compute}-relation-{broken,departed}')
  36     def departed(self):
  37         self.remove_state('{relation_name}.connected')
  38         self.remove_state('{relation_name}.available')
  39
  40     def ssh_key_installed(self):
  41         convo = self.conversation()
  42         convo.set_remote('ssh_key_installed', True)
  43
  44     def send_user(self, user):
  45         convo = self.conversation()
  46         convo.set_remote('user', user)