Source code for octavia.common.clients
# 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 cinderclient import client as cinder_client
from glanceclient import client as glance_client
from keystoneauth1 import session
from keystoneauth1 import token_endpoint
from novaclient import api_versions
from novaclient import client as nova_client
import openstack
from oslo_config import cfg
from oslo_log import log as logging
from oslo_utils import excutils
from octavia.common import keystone
LOG = logging.getLogger(__name__)
CONF = cfg.CONF
GLANCE_VERSION = '2'
NOVA_VERSION = '2.15'
CINDER_VERSION = '3'
[docs]
class NovaAuth:
nova_client = None
[docs]
@classmethod
def get_nova_client(cls, region, service_name=None, endpoint=None,
endpoint_type='publicURL', insecure=False,
cacert=None):
"""Create nova client object.
:param region: The region of the service
:param service_name: The name of the nova service in the catalog
:param endpoint: The endpoint of the service
:param endpoint_type: The type of the endpoint
:param insecure: Turn off certificate validation
:param cacert: CA Cert file path
:return: a Nova Client object.
:raises Exception: if the client cannot be created
"""
ksession = keystone.KeystoneSession()
if not cls.nova_client:
kwargs = {'region_name': region,
'session': ksession.get_session(),
'endpoint_type': endpoint_type,
'insecure': insecure}
if service_name:
kwargs['service_name'] = service_name
if endpoint:
kwargs['endpoint_override'] = endpoint
if cacert:
kwargs['cacert'] = cacert
try:
cls.nova_client = nova_client.Client(
version=api_versions.APIVersion(NOVA_VERSION), **kwargs)
except Exception:
with excutils.save_and_reraise_exception():
LOG.exception("Error creating Nova client.")
return cls.nova_client
[docs]
class NeutronAuth:
neutron_client = None
[docs]
@classmethod
def get_neutron_client(cls):
"""Create neutron client object."""
ksession = keystone.KeystoneSession('neutron')
if not cls.neutron_client:
sess = ksession.get_session()
kwargs = {'region_name': CONF.neutron.region_name}
# TODO(ricolin) `interface` option don't take list as option yet.
# We can move away from this when openstacksdk no longer depends
# on `interface`.
try:
interface = CONF.neutron.valid_interfaces[0]
except (TypeError, LookupError):
interface = CONF.neutron.valid_interfaces
if interface:
kwargs['interface'] = interface
if CONF.neutron.endpoint_override:
kwargs['network_endpoint_override'] = (
CONF.neutron.endpoint_override)
if CONF.neutron.endpoint_override.startswith("https"):
kwargs['insecure'] = CONF.neutron.insecure
kwargs['cacert'] = CONF.neutron.cafile
conn = openstack.connection.Connection(
session=sess, **kwargs)
cls.neutron_client = conn
return cls.neutron_client
[docs]
@classmethod
def get_user_neutron_client(cls, context):
"""Get neutron client for request user.
It's possible that the token in the context is a trust scoped
which can't be used to initialize a keystone session.
We directly use the token and endpoint_url to initialize neutron
client.
"""
sess = keystone.KeystoneSession('neutron').get_session()
neutron_endpoint = CONF.neutron.endpoint_override
if neutron_endpoint is None:
endpoint_data = sess.get_endpoint_data(
service_type='network',
interface=CONF.neutron.valid_interfaces,
region_name=CONF.neutron.region_name)
neutron_endpoint = endpoint_data.catalog_url
user_auth = token_endpoint.Token(neutron_endpoint, context.auth_token)
user_sess = session.Session(auth=user_auth)
conn = openstack.connection.Connection(
session=user_sess, oslo_conf=CONF)
return conn.network
[docs]
class GlanceAuth:
glance_client = None
[docs]
@classmethod
def get_glance_client(cls, region, service_name=None, endpoint=None,
endpoint_type='publicURL', insecure=False,
cacert=None):
"""Create glance client object.
:param region: The region of the service
:param service_name: The name of the glance service in the catalog
:param endpoint: The endpoint of the service
:param endpoint_type: The endpoint_type of the service
:param insecure: Turn off certificate validation
:param cacert: CA Cert file path
:return: a Glance Client object.
:raises Exception: if the client cannot be created
"""
ksession = keystone.KeystoneSession()
if not cls.glance_client:
kwargs = {'region_name': region,
'session': ksession.get_session(),
'interface': endpoint_type}
if service_name:
kwargs['service_name'] = service_name
if endpoint:
kwargs['endpoint'] = endpoint
if endpoint.startswith("https"):
kwargs['insecure'] = insecure
kwargs['cacert'] = cacert
try:
cls.glance_client = glance_client.Client(
GLANCE_VERSION, **kwargs)
except Exception:
with excutils.save_and_reraise_exception():
LOG.exception("Error creating Glance client.")
return cls.glance_client
[docs]
class CinderAuth:
cinder_client = None
[docs]
@classmethod
def get_cinder_client(cls, region, service_name=None, endpoint=None,
endpoint_type='publicURL', insecure=False,
cacert=None):
"""Create cinder client object.
:param region: The region of the service
:param service_name: The name of the cinder service in the catalog
:param endpoint: The endpoint of the service
:param endpoint_type: The endpoint type of the service
:param insecure: Turn off certificate validation
:param cacert: CA Cert file path
:return: a Cinder Client object
:raise Exception: if the client cannot be created
"""
ksession = keystone.KeystoneSession()
if not cls.cinder_client:
kwargs = {'region_name': region,
'session': ksession.get_session(),
'interface': endpoint_type}
if service_name:
kwargs['service_name'] = service_name
if endpoint:
kwargs['endpoint'] = endpoint
if endpoint.startswith("https"):
kwargs['insecure'] = insecure
kwargs['cacert'] = cacert
try:
cls.cinder_client = cinder_client.Client(
CINDER_VERSION, **kwargs
)
except Exception:
with excutils.save_and_reraise_exception():
LOG.exception("Error creating Cinder client.")
return cls.cinder_client
