Container Infrastructure Management Service for OpenStack
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# Copyright 2014 - Rackspace Hosting.
#
# 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 glanceclient.v2 import client as glanceclient
from heatclient.v1 import client as heatclient
from oslo_config import cfg
from magnum.common import exception
from magnum.common import magnum_keystoneclient
from magnum.i18n import _
from magnum.openstack.common import log as logging
LOG = logging.getLogger(__name__)
heat_client_opts = [
cfg.StrOpt('region_name',
default=None,
help=_('Region in Identity service catalog to use for '
'communication with the OpenStack service.')),
cfg.StrOpt('endpoint_type',
default='publicURL',
help=_(
'Type of endpoint in Identity service catalog to use '
'for communication with the OpenStack service.')),
cfg.StrOpt('ca_file',
help=_('Optional CA cert file to use in SSL connections.')),
cfg.StrOpt('cert_file',
help=_('Optional PEM-formatted certificate chain file.')),
cfg.StrOpt('key_file',
help=_('Optional PEM-formatted file that contains the '
'private key.')),
cfg.BoolOpt('insecure',
default=False,
help=_("If set, then the server's certificate will not "
"be verified."))]
glance_client_opts = [
cfg.StrOpt('region_name',
default=None,
help=_('Region in Identity service catalog to use for '
'communication with the OpenStack service.')),
cfg.StrOpt('endpoint_type',
default='publicURL',
help=_(
'Type of endpoint in Identity service catalog to use '
'for communication with the OpenStack service.')),
]
cfg.CONF.register_opts(heat_client_opts, group='heat_client')
cfg.CONF.register_opts(glance_client_opts, group='glance_client')
class OpenStackClients(object):
"""Convenience class to create and cache client instances."""
def __init__(self, context):
self.context = context
self._keystone = None
self._heat = None
self._glance = None
def url_for(self, **kwargs):
return self.keystone().client.service_catalog.url_for(**kwargs)
@property
def auth_url(self):
return self.keystone().v3_endpoint
@property
def auth_token(self):
return self.context.auth_token or self.keystone().auth_token
def keystone(self):
if self._keystone:
return self._keystone
self._keystone = magnum_keystoneclient.KeystoneClientV3(self.context)
return self._keystone
def _get_client_option(self, client, option):
return getattr(getattr(cfg.CONF, '%s_client' % client), option)
@exception.wrap_keystone_exception
def heat(self):
if self._heat:
return self._heat
endpoint_type = self._get_client_option('heat', 'endpoint_type')
region_name = self._get_client_option('heat', 'region_name')
endpoint = self.url_for(service_type='orchestration',
endpoint_type=endpoint_type,
region_name=region_name)
args = {
'endpoint': endpoint,
'auth_url': self.auth_url,
'token': self.auth_token,
'username': None,
'password': None,
'ca_file': self._get_client_option('heat', 'ca_file'),
'cert_file': self._get_client_option('heat', 'cert_file'),
'key_file': self._get_client_option('heat', 'key_file'),
'insecure': self._get_client_option('heat', 'insecure')
}
self._heat = heatclient.Client(**args)
return self._heat
@exception.wrap_keystone_exception
def glance(self):
if self._glance:
return self._glance
endpoint_type = self._get_client_option('glance', 'endpoint_type')
region_name = self._get_client_option('glance', 'region_name')
endpoint = self.url_for(service_type='image',
endpoint_type=endpoint_type,
region_name=region_name)
args = {
'endpoint': endpoint,
'auth_url': self.auth_url,
'token': self.auth_token,
'username': None,
'password': None,
}
self._glance = glanceclient.Client(**args)
return self._glance