omni/creds_manager/credsmgr/policy.py
Harsha Dhake 3fc8b3f97d Added credentials manager and updated omni drivers.
This change:
1. Adds credmanager service which handles credentials for AWS drivers.
2. Adds support for managing multiple AWS accounts through use of credmanager. Each account is mapped to a single project in keystone.
3. Adds support for multiple AZs by running one nova-compute and cinder-volume process per AZ.
4. Improves support for AWS networking in neutron.
5. Also, made few stability fixes in GCP and Azure drivers.

Change-Id: I0f87005a924423397db659ab754caaa6cde90274
2019-02-25 00:38:42 -05:00

82 lines
2.5 KiB
Python

# Copyright (c) 2011 OpenStack Foundation
# All Rights Reserved.
#
# Copyright (c) 2017 Platform9 Systems
#
# 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.
"""Policy Engine For Credsmgr"""
from oslo_config import cfg
from oslo_policy import opts as policy_opts
from oslo_policy import policy
from credsmgr import exception
CONF = cfg.CONF
policy_opts.set_defaults(cfg.CONF, 'policy.json')
_ENFORCER = None
def init():
global _ENFORCER
if not _ENFORCER:
_ENFORCER = policy.Enforcer(CONF)
def enforce(context, action, target):
"""Verifies that the action is valid on the target in this context.
:param context: credsmgr context
:param action: string representing the action to be checked
this should be colon separated for clarity.
i.e. ``compute:create_instance``,
``compute:attach_volume``,
``volume:attach_volume``
:param object: dictionary representing the object of the action
for object creation this should be a dictionary representing the
location of the object e.g. ``{'project_id': context.project_id}``
:raises PolicyNotAuthorized: if verification fails.
"""
init()
return _ENFORCER.enforce(action,
target,
context.to_policy_values(),
do_raise=True,
exc=exception.PolicyNotAuthorized,
action=action)
def check_is_admin(roles, context=None):
"""Whether or not user is admin according to policy setting.
"""
init()
# include project_id on target to avoid KeyError if context_is_admin
# policy definition is missing, and default admin_or_owner rule
# attempts to apply.
target = {'project_id': ''}
if context is None:
credentials = {'roles': roles}
else:
credentials = context.to_dict()
return _ENFORCER.enforce('context_is_admin', target, credentials)