provides.py

# from charms.reactive import hook
# from charms.reactive import RelationBase
# from charms.reactive import scopes
# from charms.reactive import is_state

# class ConsulClient(RelationBase):
#     scope = scopes.UNIT
#     auto_accessors = ['address', 'port']

#     @hook('{provides:consul-agent}-relation-{joined,changed}')
#     def changed(self):
#         self.set_state('{relation_name}.connected')
#         data = {
#             'address': self.address(),
#             'port': self.port(),
#         }
#         if all(data.values()):
#             self.set_state('{relation_name}.available')

#     @hook('{provides:consul-agent}-relation-{broken,departed}')
#     def broken(self):
#         if(is_state('{relation_name}.available')):
#             self.remove_state('{relation_name}.available')