81b45f2c1d
The statless design was developed in the experiment branch, the experiment shows advantage in removing the status synchronization, uuid mapping compared to the stateful design, and also fully reduce the coupling with OpenStack services like Nova, Cinder. The overhead query latency for resources also acceptable. It's time to move the statless design to the master branch BP: https://blueprints.launchpad.net/tricircle/+spec/implement-stateless Change-Id: I51bbb60dc07da5b2e79f25e02209aa2eb72711ac Signed-off-by: Chaoyi Huang <joehuang@huawei.com>
122 lines
3.7 KiB
Python
122 lines
3.7 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 pecan import request
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import oslo_context.context as oslo_ctx
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from tricircle.db import core
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def get_db_context():
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return Context()
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def get_admin_context():
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ctx = Context()
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ctx.is_admin = True
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return ctx
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def is_admin_context(ctx):
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return ctx.is_admin
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def extract_context_from_environ():
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context_paras = {'auth_token': 'HTTP_X_AUTH_TOKEN',
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'user': 'HTTP_X_USER_ID',
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'tenant': 'HTTP_X_TENANT_ID',
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'user_name': 'HTTP_X_USER_NAME',
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'tenant_name': 'HTTP_X_PROJECT_NAME',
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'domain': 'HTTP_X_DOMAIN_ID',
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'user_domain': 'HTTP_X_USER_DOMAIN_ID',
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'project_domain': 'HTTP_X_PROJECT_DOMAIN_ID',
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'request_id': 'openstack.request_id'}
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environ = request.environ
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for key in context_paras:
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context_paras[key] = environ.get(context_paras[key])
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role = environ.get('HTTP_X_ROLE')
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context_paras['is_admin'] = role == 'admin'
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return Context(**context_paras)
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def get_context_from_neutron_context(context):
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ctx = Context()
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ctx.auth_token = context.auth_token
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ctx.user = context.user_id
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ctx.tenant = context.tenant_id
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ctx.tenant_name = context.tenant_name
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ctx.user_name = context.user_name
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ctx.resource_uuid = context.resource_uuid
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return ctx
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class ContextBase(oslo_ctx.RequestContext):
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def __init__(self, auth_token=None, user_id=None, tenant_id=None,
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is_admin=False, request_id=None, overwrite=True,
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user_name=None, tenant_name=None, **kwargs):
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super(ContextBase, self).__init__(
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auth_token=auth_token,
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user=user_id or kwargs.get('user', None),
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tenant=tenant_id or kwargs.get('tenant', None),
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domain=kwargs.get('domain', None),
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user_domain=kwargs.get('user_domain', None),
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project_domain=kwargs.get('project_domain', None),
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is_admin=is_admin,
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read_only=kwargs.get('read_only', False),
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show_deleted=kwargs.get('show_deleted', False),
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request_id=request_id,
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resource_uuid=kwargs.get('resource_uuid', None),
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overwrite=overwrite)
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self.user_name = user_name
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self.tenant_name = tenant_name
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def to_dict(self):
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ctx_dict = super(ContextBase, self).to_dict()
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ctx_dict.update({
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'user_name': self.user_name,
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'tenant_name': self.tenant_name,
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'tenant_id': self.tenant_id,
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'project_id': self.project_id
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})
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return ctx_dict
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@property
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def project_id(self):
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return self.tenant
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@property
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def tenant_id(self):
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return self.tenant
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@classmethod
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def from_dict(cls, ctx):
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return cls(**ctx)
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class Context(ContextBase):
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def __init__(self, **kwargs):
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super(Context, self).__init__(**kwargs)
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self._session = None
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@property
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def session(self):
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if not self._session:
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self._session = core.get_session()
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return self._session
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