def url_for(self,
attr=None,
filter_value=None,
service_type='network',
endpoint_type='publicURL'):
"""Fetch the URL from the Neutron service for
a particular endpoint type. If none given, return
publicURL.
"""
catalog = self.catalog['access'].get('serviceCatalog', [])
matching_endpoints = []
for service in catalog:
if service['type'] != service_type:
continue
endpoints = service['endpoints']
for endpoint in endpoints:
if not filter_value or endpoint.get(attr) == filter_value:
matching_endpoints.append(endpoint)
if not matching_endpoints:
raise exceptions.EndpointNotFound()
elif len(matching_endpoints) > 1:
raise exceptions.AmbiguousEndpoints(
matching_endpoints=matching_endpoints)
else:
if endpoint_type not in matching_endpoints[0]:
raise exceptions.EndpointTypeNotFound(type_=endpoint_type)
return matching_endpoints[0][endpoint_type]
def _get_endpoint_url(self):
url = self.auth_url + '/tokens/%s/endpoints' % self.auth_token
try:
resp, body = self._cs_request(url, "GET")
except exceptions.Unauthorized:
# rollback to authenticate() to handle case when neutron client
# is initialized just before the token is expired
self.authenticate()
return self.endpoint_url
body = json.loads(body)
for endpoint in body.get('endpoints', []):
if (endpoint['type'] == 'network'
and endpoint.get('region') == self.region_name):
if self.endpoint_type not in endpoint:
raise exceptions.EndpointTypeNotFound(
message=self.endpoint_type)
return endpoint[self.endpoint_type]
raise exceptions.EndpointNotFound()
