OpenStack Orchestration (Heat)
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# 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.
import os
from cinderclient import client as cinder_client
from heat.common.i18n import _
from heatclient import client as heat_client
from keystoneauth1.identity.generic import password
from keystoneauth1 import session
from neutronclient.v2_0 import client as neutron_client
from novaclient import client as nova_client
from swiftclient import client as swift_client
class KeystoneWrapperClient(object):
"""Wrapper object for keystone client
This wraps keystone client, so we can encpasulate certain
added properties like auth_token, project_id etc.
"""
def __init__(self, auth_plugin, verify=True):
self.auth_plugin = auth_plugin
self.session = session.Session(
auth=auth_plugin,
verify=verify)
@property
def auth_token(self):
return self.auth_plugin.get_token(self.session)
@property
def auth_ref(self):
return self.auth_plugin.get_access(self.session)
@property
def project_id(self):
return self.auth_plugin.get_project_id(self.session)
def get_endpoint_url(self, service_type, region=None):
kwargs = {
'service_type': service_type,
'region_name': region}
return self.auth_ref.service_catalog.url_for(**kwargs)
class ClientManager(object):
"""Provides access to the official python clients for calling various APIs.
Manager that provides access to the official python clients for
calling various OpenStack APIs.
"""
CINDERCLIENT_VERSION = '2'
HEATCLIENT_VERSION = '1'
NOVA_API_VERSION = '2.1'
def __init__(self, conf, admin_credentials=False):
self.conf = conf
self.admin_credentials = admin_credentials
self.auth_version = self.conf.auth_version
if not self.auth_version:
try:
self.auth_version = self.conf.auth_url.split('/v')[1]
except IndexError:
raise ValueError(_('Please specify version in auth_url or '
'auth_version in config.'))
self.insecure = self.conf.disable_ssl_certificate_validation
self.ca_file = self.conf.ca_file
self.identity_client = self._get_identity_client()
self.orchestration_client = self._get_orchestration_client()
self.compute_client = self._get_compute_client()
self.network_client = self._get_network_client()
self.volume_client = self._get_volume_client()
self.object_client = self._get_object_client()
def _username(self):
if self.admin_credentials:
return self.conf.admin_username
return self.conf.username
def _password(self):
if self.admin_credentials:
return self.conf.admin_password
return self.conf.password
def _project_name(self):
if self.admin_credentials:
return self.conf.admin_project_name
return self.conf.project_name
def _get_orchestration_client(self):
endpoint = os.environ.get('HEAT_URL')
if os.environ.get('OS_NO_CLIENT_AUTH') == 'True':
session = None
else:
session = self.identity_client.session
return heat_client.Client(
self.HEATCLIENT_VERSION,
endpoint,
session=session,
endpoint_type='publicURL',
service_type='orchestration',
region_name=self.conf.region,
username=self._username(),
password=self._password())
def _get_identity_client(self):
user_domain_id = self.conf.user_domain_id
project_domain_id = self.conf.project_domain_id
user_domain_name = self.conf.user_domain_name
project_domain_name = self.conf.project_domain_name
kwargs = {
'username': self._username(),
'password': self._password(),
'project_name': self._project_name(),
'auth_url': self.conf.auth_url
}
# keystone v2 can't ignore domain details
if self.auth_version == '3':
kwargs.update({
'user_domain_id': user_domain_id,
'project_domain_id': project_domain_id,
'user_domain_name': user_domain_name,
'project_domain_name': project_domain_name})
auth = password.Password(**kwargs)
if self.insecure:
verify_cert = False
else:
verify_cert = self.ca_file or True
return KeystoneWrapperClient(auth, verify_cert)
def _get_compute_client(self):
# Create our default Nova client to use in testing
return nova_client.Client(
self.NOVA_API_VERSION,
session=self.identity_client.session,
service_type='compute',
endpoint_type='publicURL',
region_name=self.conf.region,
os_cache=False,
http_log_debug=True)
def _get_network_client(self):
return neutron_client.Client(
session=self.identity_client.session,
service_type='network',
region_name=self.conf.region,
endpoint_type='publicURL')
def _get_volume_client(self):
return cinder_client.Client(
self.CINDERCLIENT_VERSION,
session=self.identity_client.session,
endpoint_type='publicURL',
region_name=self.conf.region,
http_log_debug=True)
def _get_object_client(self):
args = {
'auth_version': self.auth_version,
'session': self.identity_client.session,
'os_options': {'endpoint_type': 'publicURL',
'region_name': self.conf.region,
'service_type': 'object-store'},
}
return swift_client.Connection(**args)