44f1f311ae
Enable users to attach a volume to a server via Nova API gateway. Change-Id: Ia348a9adaad144bdd31c5d42553011af755b566f
348 lines
14 KiB
Python
348 lines
14 KiB
Python
# Copyright 2015 Huawei Technologies Co., Ltd.
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# All Rights Reserved
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#
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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 cinderclient import client as c_client
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from cinderclient import exceptions as c_exceptions
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import glanceclient as g_client
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import glanceclient.exc as g_exceptions
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from neutronclient.common import exceptions as q_exceptions
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from neutronclient.neutron import client as q_client
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from novaclient import client as n_client
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from novaclient import exceptions as n_exceptions
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from oslo_config import cfg
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from oslo_log import log as logging
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from requests import exceptions as r_exceptions
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from tricircle.common import constants as cons
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from tricircle.common import exceptions
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client_opts = [
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cfg.IntOpt('cinder_timeout',
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default=60,
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help='timeout for cinder client in seconds'),
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cfg.IntOpt('glance_timeout',
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default=60,
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help='timeout for glance client in seconds'),
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cfg.IntOpt('neutron_timeout',
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default=60,
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help='timeout for neutron client in seconds'),
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cfg.IntOpt('nova_timeout',
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default=60,
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help='timeout for nova client in seconds'),
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]
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cfg.CONF.register_opts(client_opts, group='client')
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LIST, CREATE, DELETE, GET, ACTION, UPDATE = 1, 2, 4, 8, 16, 32
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operation_index_map = {'list': LIST, 'create': CREATE, 'delete': DELETE,
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'get': GET, 'action': ACTION, 'update': UPDATE}
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LOG = logging.getLogger(__name__)
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def _transform_filters(filters):
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filter_dict = {}
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for query_filter in filters:
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# only eq filter supported at first
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if query_filter['comparator'] != 'eq':
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continue
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key = query_filter['key']
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value = query_filter['value']
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filter_dict[key] = value
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return filter_dict
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class ResourceHandle(object):
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def __init__(self, auth_url):
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self.auth_url = auth_url
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self.endpoint_url = None
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def is_endpoint_url_set(self):
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return self.endpoint_url is not None
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def update_endpoint_url(self, url):
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self.endpoint_url = url
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class GlanceResourceHandle(ResourceHandle):
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service_type = cons.ST_GLANCE
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support_resource = {'image': LIST | GET}
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def _get_client(self, cxt):
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return g_client.Client('1',
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token=cxt.auth_token,
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auth_url=self.auth_url,
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endpoint=self.endpoint_url,
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timeout=cfg.CONF.client.glance_timeout)
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def handle_list(self, cxt, resource, filters):
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try:
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client = self._get_client(cxt)
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collection = '%ss' % resource
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return [res.to_dict() for res in getattr(
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client, collection).list(filters=_transform_filters(filters))]
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except g_exceptions.InvalidEndpoint:
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self.endpoint_url = None
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raise exceptions.EndpointNotAvailable('glance',
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client.http_client.endpoint)
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def handle_get(self, cxt, resource, resource_id):
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try:
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client = self._get_client(cxt)
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collection = '%ss' % resource
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return getattr(client, collection).get(resource_id).to_dict()
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except g_exceptions.InvalidEndpoint:
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self.endpoint_url = None
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raise exceptions.EndpointNotAvailable('glance',
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client.http_client.endpoint)
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except g_exceptions.HTTPNotFound:
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LOG.debug("%(resource)s %(resource_id)s not found",
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{'resource': resource, 'resource_id': resource_id})
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class NeutronResourceHandle(ResourceHandle):
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service_type = cons.ST_NEUTRON
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support_resource = {'network': LIST | CREATE | DELETE | GET,
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'subnet': LIST | CREATE | DELETE | GET,
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'port': LIST | CREATE | DELETE | GET,
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'router': LIST | CREATE | ACTION | UPDATE,
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'security_group': LIST | CREATE | GET,
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'security_group_rule': LIST | CREATE | DELETE,
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'floatingip': LIST | CREATE}
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def _get_client(self, cxt):
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return q_client.Client('2.0',
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token=cxt.auth_token,
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auth_url=self.auth_url,
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endpoint_url=self.endpoint_url,
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timeout=cfg.CONF.client.neutron_timeout)
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def handle_list(self, cxt, resource, filters):
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try:
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client = self._get_client(cxt)
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collection = '%ss' % resource
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search_opts = _transform_filters(filters)
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return [res for res in getattr(
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client, 'list_%s' % collection)(**search_opts)[collection]]
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except q_exceptions.ConnectionFailed:
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self.endpoint_url = None
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raise exceptions.EndpointNotAvailable(
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'neutron', client.httpclient.endpoint_url)
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def handle_create(self, cxt, resource, *args, **kwargs):
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try:
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client = self._get_client(cxt)
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ret = getattr(client, 'create_%s' % resource)(
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*args, **kwargs)
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if resource in ret:
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return ret[resource]
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else:
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return ret['%ss' % resource]
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except q_exceptions.ConnectionFailed:
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self.endpoint_url = None
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raise exceptions.EndpointNotAvailable(
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'neutron', client.httpclient.endpoint_url)
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def handle_update(self, cxt, resource, *args, **kwargs):
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try:
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client = self._get_client(cxt)
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return getattr(client, 'update_%s' % resource)(
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*args, **kwargs)[resource]
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except q_exceptions.ConnectionFailed:
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self.endpoint_url = None
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raise exceptions.EndpointNotAvailable(
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'neutron', client.httpclient.endpoint_url)
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def handle_get(self, cxt, resource, resource_id):
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try:
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client = self._get_client(cxt)
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return getattr(client, 'show_%s' % resource)(resource_id)[resource]
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except q_exceptions.ConnectionFailed:
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self.endpoint_url = None
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raise exceptions.EndpointNotAvailable(
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'neutron', client.httpclient.endpoint_url)
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except q_exceptions.NotFound:
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LOG.debug("%(resource)s %(resource_id)s not found",
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{'resource': resource, 'resource_id': resource_id})
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def handle_delete(self, cxt, resource, resource_id):
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try:
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client = self._get_client(cxt)
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return getattr(client, 'delete_%s' % resource)(resource_id)
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except q_exceptions.ConnectionFailed:
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self.endpoint_url = None
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raise exceptions.EndpointNotAvailable(
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'neutron', client.httpclient.endpoint_url)
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except q_exceptions.NotFound:
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LOG.debug("Delete %(resource)s %(resource_id)s which not found",
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{'resource': resource, 'resource_id': resource_id})
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def handle_action(self, cxt, resource, action, *args, **kwargs):
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try:
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client = self._get_client(cxt)
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return getattr(client, '%s_%s' % (action, resource))(*args,
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**kwargs)
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except q_exceptions.ConnectionFailed:
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self.endpoint_url = None
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raise exceptions.EndpointNotAvailable(
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'neutron', client.httpclient.endpoint_url)
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class NovaResourceHandle(ResourceHandle):
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service_type = cons.ST_NOVA
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support_resource = {'flavor': LIST,
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'server': LIST | CREATE | GET,
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'aggregate': LIST | CREATE | DELETE | ACTION,
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'server_volume': ACTION}
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def _get_client(self, cxt):
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cli = n_client.Client('2',
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auth_token=cxt.auth_token,
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auth_url=self.auth_url,
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timeout=cfg.CONF.client.nova_timeout)
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cli.set_management_url(
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self.endpoint_url.replace('$(tenant_id)s', cxt.tenant))
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return cli
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def _adapt_resource(self, resource):
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if resource == 'server_volume':
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return 'volume'
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else:
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return resource
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def handle_list(self, cxt, resource, filters):
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try:
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resource = self._adapt_resource(resource)
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client = self._get_client(cxt)
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collection = '%ss' % resource
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# only server list supports filter
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if resource == 'server':
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search_opts = _transform_filters(filters)
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return [res.to_dict() for res in getattr(
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client, collection).list(search_opts=search_opts)]
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else:
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return [res.to_dict() for res in getattr(client,
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collection).list()]
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except r_exceptions.ConnectTimeout:
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self.endpoint_url = None
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raise exceptions.EndpointNotAvailable('nova',
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client.client.management_url)
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def handle_create(self, cxt, resource, *args, **kwargs):
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try:
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resource = self._adapt_resource(resource)
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client = self._get_client(cxt)
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collection = '%ss' % resource
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return getattr(client, collection).create(
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*args, **kwargs).to_dict()
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except r_exceptions.ConnectTimeout:
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self.endpoint_url = None
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raise exceptions.EndpointNotAvailable('nova',
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client.client.management_url)
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def handle_get(self, cxt, resource, resource_id):
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try:
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resource = self._adapt_resource(resource)
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client = self._get_client(cxt)
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collection = '%ss' % resource
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return getattr(client, collection).get(resource_id).to_dict()
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except r_exceptions.ConnectTimeout:
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self.endpoint_url = None
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raise exceptions.EndpointNotAvailable('nova',
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client.client.management_url)
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except n_exceptions.NotFound:
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LOG.debug("%(resource)s %(resource_id)s not found",
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{'resource': resource, 'resource_id': resource_id})
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def handle_delete(self, cxt, resource, resource_id):
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try:
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resource = self._adapt_resource(resource)
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client = self._get_client(cxt)
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collection = '%ss' % resource
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return getattr(client, collection).delete(resource_id)
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except r_exceptions.ConnectTimeout:
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self.endpoint_url = None
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raise exceptions.EndpointNotAvailable('nova',
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client.client.management_url)
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except n_exceptions.NotFound:
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LOG.debug("Delete %(resource)s %(resource_id)s which not found",
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{'resource': resource, 'resource_id': resource_id})
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def handle_action(self, cxt, resource, action, *args, **kwargs):
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try:
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resource = self._adapt_resource(resource)
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client = self._get_client(cxt)
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collection = '%ss' % resource
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resource_manager = getattr(client, collection)
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return getattr(resource_manager, action)(*args, **kwargs)
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except r_exceptions.ConnectTimeout:
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self.endpoint_url = None
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raise exceptions.EndpointNotAvailable('nova',
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client.client.management_url)
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class CinderResourceHandle(ResourceHandle):
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service_type = cons.ST_CINDER
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support_resource = {'volume': GET | ACTION,
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'transfer': CREATE | ACTION}
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def _get_client(self, cxt):
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cli = c_client.Client('2',
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auth_token=cxt.auth_token,
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auth_url=self.auth_url,
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timeout=cfg.CONF.client.cinder_timeout)
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cli.set_management_url(
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self.endpoint_url.replace('$(tenant_id)s', cxt.tenant))
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return cli
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def handle_get(self, cxt, resource, resource_id):
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try:
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client = self._get_client(cxt)
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collection = '%ss' % resource
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res = getattr(client, collection).get(resource_id)
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info = {}
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info.update(res._info)
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return info
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except r_exceptions.ConnectTimeout:
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self.endpoint_url = None
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raise exceptions.EndpointNotAvailable('cinder',
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client.client.management_url)
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def handle_delete(self, cxt, resource, resource_id):
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try:
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client = self._get_client(cxt)
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collection = '%ss' % resource
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return getattr(client, collection).delete(resource_id)
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except r_exceptions.ConnectTimeout:
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self.endpoint_url = None
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raise exceptions.EndpointNotAvailable('cinder',
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client.client.management_url)
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except c_exceptions.NotFound:
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LOG.debug("Delete %(resource)s %(resource_id)s which not found",
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{'resource': resource, 'resource_id': resource_id})
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def handle_action(self, cxt, resource, action, *args, **kwargs):
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try:
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client = self._get_client(cxt)
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collection = '%ss' % resource
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resource_manager = getattr(client, collection)
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getattr(resource_manager, action)(*args, **kwargs)
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except r_exceptions.ConnectTimeout:
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self.endpoint_url = None
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raise exceptions.EndpointNotAvailable('cinder',
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client.client.management_url)
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