4b98e30307
Add charmhelpers.contrib.hardening and calls to install, config-changed, upgrade-charm and update-status hooks. Also add new config option to allow one or more hardening modules to be applied at runtime. Change-Id: Icf48829e010d35d7d7a4ccd547eae6a8c511c04e
90 lines
3.0 KiB
Python
90 lines
3.0 KiB
Python
# Copyright 2016 Canonical Limited.
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#
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# This file is part of charm-helpers.
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#
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# charm-helpers is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License version 3 as
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# published by the Free Software Foundation.
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#
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# charm-helpers is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with charm-helpers. If not, see <http://www.gnu.org/licenses/>.
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import six
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import subprocess
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from charmhelpers.core.hookenv import (
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log,
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WARNING,
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)
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from charmhelpers.contrib.hardening.audits.file import (
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FilePermissionAudit,
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DirectoryPermissionAudit,
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TemplatedFile,
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)
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from charmhelpers.contrib.hardening.mysql import TEMPLATES_DIR
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from charmhelpers.contrib.hardening import utils
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def get_audits():
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"""Get MySQL hardening config audits.
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:returns: dictionary of audits
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"""
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if subprocess.call(['which', 'mysql'], stdout=subprocess.PIPE) != 0:
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log("MySQL does not appear to be installed on this node - "
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"skipping mysql hardening", level=WARNING)
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return []
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settings = utils.get_settings('mysql')
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hardening_settings = settings['hardening']
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my_cnf = hardening_settings['mysql-conf']
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audits = [
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FilePermissionAudit(paths=[my_cnf], user='root',
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group='root', mode=0o0600),
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TemplatedFile(hardening_settings['hardening-conf'],
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MySQLConfContext(),
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TEMPLATES_DIR,
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mode=0o0750,
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user='mysql',
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group='root',
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service_actions=[{'service': 'mysql',
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'actions': ['restart']}]),
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# MySQL and Percona charms do not allow configuration of the
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# data directory, so use the default.
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DirectoryPermissionAudit('/var/lib/mysql',
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user='mysql',
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group='mysql',
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recursive=False,
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mode=0o755),
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DirectoryPermissionAudit('/etc/mysql',
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user='root',
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group='root',
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recursive=False,
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mode=0o700),
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]
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return audits
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class MySQLConfContext(object):
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"""Defines the set of key/value pairs to set in a mysql config file.
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This context, when called, will return a dictionary containing the
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key/value pairs of setting to specify in the
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/etc/mysql/conf.d/hardening.cnf file.
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"""
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def __call__(self):
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settings = utils.get_settings('mysql')
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# Translate for python3
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return {'mysql_settings':
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[(k, v) for k, v in six.iteritems(settings['security'])]}
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