def identity_changed(relation_id=None, remote_unit=None):
notifications_checksums = {}
notifications_endpoints = {}
if is_elected_leader(CLUSTER_RES):
if not is_db_ready():
log(
"identity-service-relation-changed hook fired before db "
"ready - deferring until db ready",
level=WARNING)
return
if not is_db_initialised():
log(
"Database not yet initialised - deferring identity-relation "
"updates",
level=INFO)
return
if expect_ha() and not is_clustered():
log("Expected to be HA but no hacluster relation yet", level=INFO)
return
add_service_to_keystone(relation_id, remote_unit)
if is_service_present('neutron', 'network'):
delete_service_entry('quantum', 'network')
settings = relation_get(rid=relation_id, unit=remote_unit)
# If endpoint has changed, notify to units related over the
# identity-notifications interface. We base the decision to notify on
# whether admin_url, public_url or internal_url have changed from
# previous notify.
service = settings.get('service')
if service:
key = '%s-endpoint-changed' % service
notifications_endpoints[key] = endpoints_dict(settings)
notifications_checksums[key] = endpoints_checksum(settings)
else:
# Some services don't set their name in the 'service' key in the
# relation, for those their name is calculated from the prefix of
# keys. See `assemble_endpoints()` for details.
single = {
'service', 'region', 'public_url', 'admin_url', 'internal_url'
}
endpoints = assemble_endpoints(settings)
for ep in endpoints.keys():
if single.issubset(endpoints[ep]):
key = '%s-endpoint-changed' % ep
log('endpoint: %s' % ep)
notifications_endpoints[key] = (endpoints_dict(
endpoints[ep]))
notifications_checksums[key] = (endpoints_checksum(
endpoints[ep]))
else:
log('Deferring identity_changed() to service leader.')
if notifications_endpoints or notifications_checksums:
send_notifications(notifications_checksums, notifications_endpoints)
def identity_changed(relation_id=None, remote_unit=None):
CONFIGS.write_all()
notifications = {}
if is_elected_leader(CLUSTER_RES):
if not is_db_ready():
log(
"identity-service-relation-changed hook fired before db "
"ready - deferring until db ready",
level=WARNING)
return
if not is_db_initialised():
log(
"Database not yet initialised - deferring identity-relation "
"updates",
level=INFO)
return
if expect_ha() and not is_clustered():
log("Expected to be HA but no hacluster relation yet", level=INFO)
return
add_service_to_keystone(relation_id, remote_unit)
if is_service_present('neutron', 'network'):
delete_service_entry('quantum', 'network')
settings = relation_get(rid=relation_id, unit=remote_unit)
service = settings.get('service', None)
if service:
# If service is known and endpoint has changed, notify service if
# it is related with notifications interface.
csum = hashlib.sha256()
# We base the decision to notify on whether these parameters have
# changed (if csum is unchanged from previous notify, relation will
# not fire).
csum.update(settings.get('public_url', None))
csum.update(settings.get('admin_url', None))
csum.update(settings.get('internal_url', None))
notifications['%s-endpoint-changed' % (service)] = csum.hexdigest()
else:
# Each unit needs to set the db information otherwise if the unit
# with the info dies the settings die with it Bug# 1355848
for rel_id in relation_ids('identity-service'):
peerdb_settings = peer_retrieve_by_prefix(rel_id)
# Ensure the null'd settings are unset in the relation.
peerdb_settings = filter_null(peerdb_settings)
if 'service_password' in peerdb_settings:
relation_set(relation_id=rel_id, **peerdb_settings)
log('Deferring identity_changed() to service leader.')
if notifications:
send_notifications(notifications)
def test_send_notifications(self, mock_is_elected_leader,
mock_relation_ids, mock_relation_get,
mock_relation_set, mock_uuid):
relation_id = 'testrel:0'
mock_uuid.uuid4.return_value = '1234'
mock_relation_ids.return_value = [relation_id]
mock_is_elected_leader.return_value = False
utils.send_notifications({'foo-endpoint-changed': 1})
self.assertFalse(mock_relation_set.called)
mock_is_elected_leader.return_value = True
utils.send_notifications({})
self.assertFalse(mock_relation_set.called)
settings = {'foo-endpoint-changed': 1}
utils.send_notifications(settings)
self.assertTrue(mock_relation_set.called)
mock_relation_set.assert_called_once_with(relation_id=relation_id,
relation_settings=settings)
mock_relation_set.reset_mock()
settings = {'foo-endpoint-changed': 1}
utils.send_notifications(settings, force=True)
self.assertTrue(mock_relation_set.called)
settings['trigger'] = '1234'
mock_relation_set.assert_called_once_with(relation_id=relation_id,
relation_settings=settings)
def test_send_notifications(self, mock_is_elected_leader,
mock_relation_ids, mock_relation_get,
mock_relation_set, mock_uuid):
relation_id = 'testrel:0'
mock_uuid.uuid4.return_value = '1234'
mock_relation_ids.return_value = [relation_id]
mock_is_elected_leader.return_value = False
utils.send_notifications({'foo-endpoint-changed': 1})
self.assertFalse(mock_relation_set.called)
mock_is_elected_leader.return_value = True
utils.send_notifications({})
self.assertFalse(mock_relation_set.called)
settings = {'foo-endpoint-changed': 1}
utils.send_notifications(settings)
self.assertTrue(mock_relation_set.called)
mock_relation_set.assert_called_once_with(relation_id=relation_id,
relation_settings=settings)
mock_relation_set.reset_mock()
settings = {'foo-endpoint-changed': 1}
utils.send_notifications(settings, force=True)
self.assertTrue(mock_relation_set.called)
settings['trigger'] = '1234'
mock_relation_set.assert_called_once_with(relation_id=relation_id,
relation_settings=settings)
def identity_changed(relation_id=None, remote_unit=None):
CONFIGS.write_all()
notifications = {}
if is_elected_leader(CLUSTER_RES):
if not is_db_ready():
log("identity-service-relation-changed hook fired before db "
"ready - deferring until db ready", level=WARNING)
return
if not is_db_initialised():
log("Database not yet initialised - deferring identity-relation "
"updates", level=INFO)
return
if expect_ha() and not is_clustered():
log("Expected to be HA but no hacluster relation yet", level=INFO)
return
add_service_to_keystone(relation_id, remote_unit)
if is_service_present('neutron', 'network'):
delete_service_entry('quantum', 'network')
settings = relation_get(rid=relation_id, unit=remote_unit)
service = settings.get('service', None)
if service:
# If service is known and endpoint has changed, notify service if
# it is related with notifications interface.
csum = hashlib.sha256()
# We base the decision to notify on whether these parameters have
# changed (if csum is unchanged from previous notify, relation will
# not fire).
csum.update(settings.get('public_url', None))
csum.update(settings.get('admin_url', None))
csum.update(settings.get('internal_url', None))
notifications['%s-endpoint-changed' % (service)] = csum.hexdigest()
else:
# Each unit needs to set the db information otherwise if the unit
# with the info dies the settings die with it Bug# 1355848
for rel_id in relation_ids('identity-service'):
peerdb_settings = peer_retrieve_by_prefix(rel_id)
# Ensure the null'd settings are unset in the relation.
peerdb_settings = filter_null(peerdb_settings)
if 'service_password' in peerdb_settings:
relation_set(relation_id=rel_id, **peerdb_settings)
log('Deferring identity_changed() to service leader.')
if notifications:
send_notifications(notifications)