James Page 074263eaa7 Make worker-multiplier sane in container environments
Resync charm-helpers to pickup the capped worker-multiplier
changes when deploying in containers.

Drop the default value for worker-multiplier of 2.0; this
is now handled from within the codebase rather than via a
default configuration value, reflecting the differing
behaviours between container and non-container deployments.

Change-Id: I418aac85c408b285cf6807ff4072e565898df399
Closes-Bug: 1665270
2017-04-26 10:41:48 +01:00

55 lines
2.0 KiB
Python

# Copyright 2016 Canonical Limited.
#
# 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.
class BaseAudit(object): # NO-QA
"""Base class for hardening checks.
The lifecycle of a hardening check is to first check to see if the system
is in compliance for the specified check. If it is not in compliance, the
check method will return a value which will be supplied to the.
"""
def __init__(self, *args, **kwargs):
self.unless = kwargs.get('unless', None)
super(BaseAudit, self).__init__()
def ensure_compliance(self):
"""Checks to see if the current hardening check is in compliance or
not.
If the check that is performed is not in compliance, then an exception
should be raised.
"""
pass
def _take_action(self):
"""Determines whether to perform the action or not.
Checks whether or not an action should be taken. This is determined by
the truthy value for the unless parameter. If unless is a callback
method, it will be invoked with no parameters in order to determine
whether or not the action should be taken. Otherwise, the truthy value
of the unless attribute will determine if the action should be
performed.
"""
# Do the action if there isn't an unless override.
if self.unless is None:
return True
# Invoke the callback if there is one.
if hasattr(self.unless, '__call__'):
return not self.unless()
return not self.unless