66826e9e5b
This code introduces standalone service which proxies its calls to existing nova EC2-API. All the code here except for the ec2api/api/proxy.py, ec2api/api/ec2client.py and some util functions is taken from current nova and unused functionality is cut of it. The proxy.py and ec2client.py files implement the new code which proxies incoming request (on port 8788) to original EC2 API in nova on port 8773. The result is transparently translated back to user. Change-Id: I4cb84f833d7d4f0e379672710ed39562811d43e0
142 lines
3.8 KiB
Python
142 lines
3.8 KiB
Python
# Copyright 2014 Cloudscaling Group, Inc
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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 keystoneclient.v2_0 import client as kc
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from novaclient import client as novaclient
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from novaclient import shell as novashell
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from oslo.config import cfg
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from ec2api.openstack.common.gettextutils import _
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from ec2api.openstack.common import log as logging
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logger = logging.getLogger(__name__)
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CONF = cfg.CONF
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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 glanceclient import client as glanceclient
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except ImportError:
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glanceclient = None
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logger.info(_('glanceclient not available'))
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def nova(context, service_type='compute'):
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computeshell = novashell.OpenStackComputeShell()
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extensions = computeshell._discover_extensions("1.1")
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args = {
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'project_id': context.project_id,
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'auth_url': CONF.keystone_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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}
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client = novaclient.Client(1.1, **args)
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management_url = _url_for(context, service_type=service_type)
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client.client.auth_token = context.auth_token
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client.client.management_url = management_url
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return client
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def neutron(context):
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if neutronclient is None:
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return None
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args = {
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'auth_url': CONF.keystone_url,
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'service_type': 'network',
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'token': context.auth_token,
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'endpoint_url': _url_for(context, service_type='network'),
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}
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return neutronclient.Client(**args)
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def glance(context):
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if glanceclient is None:
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return None
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args = {
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'auth_url': CONF.keystone_url,
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'service_type': 'image',
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'token': context.auth_token,
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}
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return glanceclient.Client(
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"1", endpoint=_url_for(context, service_type='image'), **args)
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def cinder(context):
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if cinderclient is None:
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return nova(context, 'volume')
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args = {
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'service_type': 'volume',
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'auth_url': CONF.keystone_url,
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'username': None,
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'api_key': None,
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}
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_cinder = cinderclient.Client('1', **args)
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management_url = _url_for(context, service_type='volume')
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_cinder.client.auth_token = context.auth_token
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_cinder.client.management_url = management_url
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return _cinder
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def keystone(context):
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_keystone = kc.Client(
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token=context.auth_token,
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tenant_id=context.project_id,
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auth_url=CONF.keystone_url)
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return _keystone
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def _url_for(context, **kwargs):
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service_catalog = context.service_catalog
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if not service_catalog:
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catalog = keystone(context).service_catalog.catalog
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service_catalog = catalog["serviceCatalog"]
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context.service_catalog = service_catalog
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service_type = kwargs["service_type"]
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for service in service_catalog:
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if service["type"] != service_type:
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continue
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for endpoint in service["endpoints"]:
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if "publicURL" in endpoint:
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return endpoint["publicURL"]
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else:
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return None
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return None
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