318 lines
11 KiB
Python
318 lines
11 KiB
Python
#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from oslo.config import cfg
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from heat.openstack.common import importutils
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from heat.openstack.common import log as logging
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from heat.openstack.common.gettextutils import _
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logger = logging.getLogger(__name__)
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from heat.common import heat_keystoneclient as hkc
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from heatclient import client as heatclient
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from novaclient import client as novaclient
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from novaclient import shell as novashell
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try:
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from swiftclient import client as swiftclient
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except ImportError:
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swiftclient = None
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logger.info(_('swiftclient not available'))
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try:
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from neutronclient.v2_0 import client as neutronclient
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except ImportError:
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neutronclient = None
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logger.info(_('neutronclient not available'))
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try:
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from cinderclient import client as cinderclient
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except ImportError:
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cinderclient = None
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logger.info(_('cinderclient not available'))
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try:
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from troveclient import client as troveclient
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except ImportError:
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troveclient = None
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logger.info(_('troveclient not available'))
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try:
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from ceilometerclient import client as ceilometerclient
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except ImportError:
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ceilometerclient = None
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logger.info(_('ceilometerclient not available'))
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_default_backend = "heat.engine.clients.OpenStackClients"
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cloud_opts = [
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cfg.StrOpt('cloud_backend',
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default=_default_backend,
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help="Fully qualified class name to use as a client backend.")
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]
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cfg.CONF.register_opts(cloud_opts)
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class OpenStackClients(object):
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'''
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Convenience class to create and cache client instances.
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'''
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def __init__(self, context):
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self.context = context
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self._nova = {}
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self._keystone = None
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self._swift = None
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self._neutron = None
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self._cinder = None
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self._trove = None
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self._ceilometer = None
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self._heat = None
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@property
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def auth_token(self):
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# if there is no auth token in the context
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# attempt to get one using the context username and password
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return self.context.auth_token or self.keystone().auth_token
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def keystone(self):
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if self._keystone:
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return self._keystone
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self._keystone = hkc.KeystoneClient(self.context)
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return self._keystone
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def url_for(self, **kwargs):
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return self.keystone().url_for(**kwargs)
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def nova(self, service_type='compute'):
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if service_type in self._nova:
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return self._nova[service_type]
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con = self.context
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computeshell = novashell.OpenStackComputeShell()
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extensions = computeshell._discover_extensions("1.1")
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endpoint_type = self._get_client_option('nova', 'endpoint_type')
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args = {
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'project_id': con.tenant,
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'auth_url': con.auth_url,
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'service_type': service_type,
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'username': None,
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'api_key': None,
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'extensions': extensions,
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'endpoint_type': endpoint_type,
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'cacert': self._get_client_option('nova', 'ca_file'),
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'insecure': self._get_client_option('nova', 'insecure')
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}
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client = novaclient.Client(1.1, **args)
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management_url = self.url_for(service_type=service_type,
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endpoint_type=endpoint_type)
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client.client.auth_token = self.auth_token
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client.client.management_url = management_url
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self._nova[service_type] = client
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return client
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def swift(self):
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if swiftclient is None:
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return None
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if self._swift:
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return self._swift
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con = self.context
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endpoint_type = self._get_client_option('swift', 'endpoint_type')
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args = {
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'auth_version': '2.0',
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'tenant_name': con.tenant,
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'user': con.username,
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'key': None,
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'authurl': None,
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'preauthtoken': self.auth_token,
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'preauthurl': self.url_for(service_type='object-store',
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endpoint_type=endpoint_type),
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'os_options': {'endpoint_type': endpoint_type},
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'cacert': self._get_client_option('swift', 'ca_file'),
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'insecure': self._get_client_option('swift', 'insecure')
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}
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self._swift = swiftclient.Connection(**args)
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return self._swift
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def neutron(self):
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if neutronclient is None:
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return None
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if self._neutron:
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return self._neutron
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con = self.context
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if self.auth_token is None:
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logger.error(_("Neutron connection failed, no auth_token!"))
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return None
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endpoint_type = self._get_client_option('neutron', 'endpoint_type')
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args = {
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'auth_url': con.auth_url,
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'service_type': 'network',
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'token': self.auth_token,
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'endpoint_url': self.url_for(service_type='network',
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endpoint_type=endpoint_type),
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'endpoint_type': endpoint_type,
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'ca_cert': self._get_client_option('neutron', 'ca_file'),
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'insecure': self._get_client_option('neutron', 'insecure')
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}
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self._neutron = neutronclient.Client(**args)
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return self._neutron
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def cinder(self):
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if cinderclient is None:
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return self.nova('volume')
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if self._cinder:
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return self._cinder
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con = self.context
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endpoint_type = self._get_client_option('cinder', 'endpoint_type')
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args = {
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'service_type': 'volume',
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'auth_url': con.auth_url,
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'project_id': con.tenant,
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'username': None,
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'api_key': None,
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'endpoint_type': endpoint_type,
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'cacert': self._get_client_option('cinder', 'ca_file'),
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'insecure': self._get_client_option('cinder', 'insecure')
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}
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self._cinder = cinderclient.Client('1', **args)
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management_url = self.url_for(service_type='volume',
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endpoint_type=endpoint_type)
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self._cinder.client.auth_token = self.auth_token
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self._cinder.client.management_url = management_url
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return self._cinder
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def trove(self, service_type="database"):
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if troveclient is None:
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return None
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if self._trove:
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return self._trove
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con = self.context
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endpoint_type = self._get_client_option('trove', 'endpoint_type')
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args = {
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'service_type': service_type,
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'auth_url': con.auth_url,
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'proxy_token': con.auth_token,
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'username': None,
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'password': None,
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'cacert': self._get_client_option('trove', 'ca_file'),
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'insecure': self._get_client_option('trove', 'insecure'),
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'endpoint_type': endpoint_type
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}
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self._trove = troveclient.Client('1.0', **args)
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management_url = self.url_for(service_type=service_type,
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endpoint_type=endpoint_type)
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self._trove.client.auth_token = con.auth_token
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self._trove.client.management_url = management_url
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return self._trove
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def ceilometer(self):
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if ceilometerclient is None:
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return None
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if self._ceilometer:
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return self._ceilometer
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con = self.context
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endpoint_type = self._get_client_option('ceilometer', 'endpoint_type')
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endpoint = self.url_for(service_type='metering',
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endpoint_type=endpoint_type)
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args = {
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'auth_url': con.auth_url,
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'service_type': 'metering',
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'project_id': con.tenant,
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'token': lambda: self.auth_token,
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'endpoint_type': endpoint_type,
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'ca_file': self._get_client_option('ceilometer', 'ca_file'),
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'cert_file': self._get_client_option('ceilometer', 'cert_file'),
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'key_file': self._get_client_option('ceilometer', 'key_file'),
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'insecure': self._get_client_option('ceilometer', 'insecure')
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}
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client = ceilometerclient.Client('2', endpoint, **args)
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self._ceilometer = client
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return self._ceilometer
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def _get_client_option(self, client, option):
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try:
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group_name = 'clients_' + client
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cfg.CONF.import_opt(option, 'heat.common.config',
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group=group_name)
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return getattr(getattr(cfg.CONF, group_name), option)
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except (cfg.NoSuchGroupError, cfg.NoSuchOptError):
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cfg.CONF.import_opt(option, 'heat.common.config', group='clients')
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return getattr(cfg.CONF.clients, option)
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def _get_heat_url(self):
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heat_url = self._get_client_option('heat', 'url')
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if heat_url:
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tenant_id = self.context.tenant_id
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heat_url = heat_url % {'tenant_id': tenant_id}
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return heat_url
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def heat(self):
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if self._heat:
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return self._heat
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con = self.context
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endpoint_type = self._get_client_option('heat', 'endpoint_type')
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args = {
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'auth_url': con.auth_url,
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'token': self.auth_token,
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'username': None,
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'password': None,
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'ca_file': self._get_client_option('heat', 'ca_file'),
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'cert_file': self._get_client_option('heat', 'cert_file'),
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'key_file': self._get_client_option('heat', 'key_file'),
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'insecure': self._get_client_option('heat', 'insecure')
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}
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endpoint = self._get_heat_url()
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if not endpoint:
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endpoint = self.url_for(service_type='orchestration',
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endpoint_type=endpoint_type)
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self._heat = heatclient.Client('1', endpoint, **args)
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return self._heat
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class ClientBackend(object):
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'''Delay choosing the backend client module until the client's class needs
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to be initialized.
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'''
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def __new__(cls, context):
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if cfg.CONF.cloud_backend == _default_backend:
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return OpenStackClients(context)
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else:
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return importutils.import_object(
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cfg.CONF.cloud_backend,
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context
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)
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Clients = ClientBackend
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