charm-interface-keystone-admin/requires.py

75 lines
2.7 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.UNIT
# 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-admin}-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-admin}-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
keystone provides:
{u'service_password': u'XXXXXXXX',
u'service_port': u'5000',
u'private-address': u'10.XX.XX.XXX',
u'service_hostname': u'10.XX.XX.XXX',
u'service_username': u'admin',
u'service_tenant_name': u'Admin',
u'service_region': u'RegionOne'}
"""
convs = self.conversations()
if len(convs) > 0:
conv = convs[0]
return {
'service_hostname': conv.get_remote('service_hostname'),
'service_port': conv.get_remote('service_port'),
'service_username': conv.get_remote('service_username'),
'service_password': conv.get_remote('service_password'),
'service_tenant_name': conv.get_remote('service_tenant_name'),
'service_region': conv.get_remote('service_region')
}
else:
return {}
def auth_data_complete(self):
data = self.credentials()
if all(data.values()):
return True
return False