872f1b9419
This is the agent part of the blueprint. Implementation of a datasource that transcribes the content of configuration files managed by oslo-config in Congress tables. The datasource uses a set of agents deployed on the nodes to access the configuration files. Change-Id: I56750cfd72ad43d8af123d151f70d1d76568a456 Implements: blueprint configuration-files-validation Co-Authored-By: Valentin Matton <vmatt.openstack@gmail.com> Co-Authored-By: Pierre Crégut <pierre.cregut@orange.com>
68 lines
2.0 KiB
Python
68 lines
2.0 KiB
Python
#
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# Copyright (c) 2017 Orange.
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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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#
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"""Support functions for cfg_validator"""
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import uuid
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from oslo_log import log as logging
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from congress.api import base
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from congress import exception
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from congress import utils
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LOG = logging.getLogger(__name__)
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#: Topic for RPC between cfg validator driver (client) and the agents (server)
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AGENT_TOPIC = 'congress-validator-agent'
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NAMESPACE_CONGRESS = uuid.uuid3(
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uuid.NAMESPACE_URL,
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'http://openstack.org/congress/agent')
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def compute_hash(*args):
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"""computes a hash from the arguments. Not cryptographically strong."""
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inputs = ''.join([str(arg) for arg in args])
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return str(uuid.uuid3(NAMESPACE_CONGRESS, inputs))
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def cfg_value_to_congress(value):
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"""Sanitize values for congress
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values of log formatting options typically contains
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'%s' etc, which should not be put in datalog
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"""
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if isinstance(value, str):
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value = value.replace('%', '')
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if value is None:
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return ''
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return utils.value_to_congress(value)
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def add_rule(bus, policy_name, rules):
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"Adds a policy and rules to the engine"
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try:
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policy_metadata = bus.rpc(
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base.ENGINE_SERVICE_ID,
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'persistent_create_policy_with_rules',
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{'policy_rules_obj': {
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"name": policy_name,
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"kind": "nonrecursive",
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"rules": rules}})
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return policy_metadata
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except exception.CongressException as err:
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LOG.error(err)
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return None
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