charm-interface-keystone-admin/requires.py

60 lines
2.1 KiB
Python

# 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
class KeystoneRequires(RelationBase):
scope = scopes.GLOBAL
# These remote data fields will be automatically mapped to accessors
# with a basic documentation string provided.
auto_accessors = ['service_hostname', 'service_password',
'service_port', 'service_region',
'service_tenant_name', 'service_username']
@hook('{requires:keystone}-relation-{joined,changed}')
def changed(self):
conv = self.conversation()
conv.set_state('{relation_name}.connected')
if self.auth_data_complete()
conv.set_state('{relation_name}.available')
else:
conv.remove_state('{relation_name}.available')
@hook('{requires:keystone}-relation-{broken,departed}')
def departed(self):
conv = self.conversation()
conv.remove_state('{relation_name}.available')
conv.remove_state('{relation_name}.connected')
def credentials(self):
"""
Returns a dict of keystone admin credentials
"""
return {
'service_hostname': self.service_hostname(),
'service_port': self.service_port(),
'service_username': self.service_username(),
'service_password': self.service_password(),
'service_tenant_name': self.service_tenant_name()
}
def auth_data_complete(self):
data = self.credentials()
if all(data.values()):
return True
return False