97 lines
3.0 KiB
Python
97 lines
3.0 KiB
Python
# Copyright (c) 2013 Mirantis Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import functools
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from oslo_config import cfg
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from blazar import context
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from blazar.utils.openstack import keystone
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CONF = cfg.CONF
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def create_trust():
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"""Creates trust via Keystone API v3 to use in plugins."""
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client = keystone.BlazarKeystoneClient()
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trustee_id = keystone.BlazarKeystoneClient(
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username=CONF.os_admin_username,
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password=CONF.os_admin_password,
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tenant_name=CONF.os_admin_project_name).user_id
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ctx = context.current()
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trust = client.trusts.create(trustor_user=ctx.user_id,
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trustee_user=trustee_id,
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impersonation=False,
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role_names=ctx.roles,
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project=ctx.project_id)
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return trust
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def delete_trust(lease):
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"""Deletes trust for the specified lease."""
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if lease.trust_id:
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client = keystone.BlazarKeystoneClient(trust_id=lease.trust_id)
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client.trusts.delete(lease.trust_id)
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def create_ctx_from_trust(trust_id):
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"""Return context built from given trust."""
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ctx = context.BlazarContext(
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user_name=CONF.os_admin_username,
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project_name=CONF.os_admin_project_name,
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)
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auth_url = "%s://%s:%s/%s" % (CONF.os_auth_protocol,
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CONF.os_auth_host,
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CONF.os_auth_port,
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CONF.os_auth_prefix)
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client = keystone.BlazarKeystoneClient(
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password=CONF.os_admin_password,
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trust_id=trust_id,
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auth_url=auth_url,
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ctx=ctx,
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)
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# use 'with ctx' statement in the place you need context from trust
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return context.BlazarContext(
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ctx,
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auth_token=client.auth_token,
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service_catalog=client.service_catalog.catalog['catalog'],
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project_id=client.tenant_id,
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)
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def use_trust_auth():
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"""Decorator creates a keystone trust
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This decorator creates a keystone trust, and adds the trust_id to the
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parameter of the decorated method.
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"""
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def decorator(func):
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@functools.wraps(func)
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def wrapped(self, to_update):
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if to_update is not None:
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trust = create_trust()
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if isinstance(to_update, dict):
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to_update.update({'trust_id': trust.id})
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elif isinstance(to_update, object):
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setattr(to_update, 'trust_id', trust.id)
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return func(self, to_update)
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return wrapped
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return decorator
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