f4bdaea664
The charm-helpers project have re-licensed to Apache 2.0 inline with the agreed licensing approach to intefaces, layers and charms generally. Resync helpers to bring charmhelpers inline with charm codebase. Change-Id: I2f0d52c539a7edbbf806c7ab7a4679274fd095d8
55 lines
1.6 KiB
Python
55 lines
1.6 KiB
Python
#!/usr/bin/env python
|
|
# -*- coding: utf-8 -*-
|
|
|
|
# Copyright 2014-2015 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.
|
|
|
|
import yaml
|
|
|
|
from subprocess import check_call
|
|
|
|
from charmhelpers.core.hookenv import (
|
|
log,
|
|
DEBUG,
|
|
ERROR,
|
|
)
|
|
|
|
__author__ = 'Jorge Niedbalski R. <jorge.niedbalski@canonical.com>'
|
|
|
|
|
|
def create(sysctl_dict, sysctl_file):
|
|
"""Creates a sysctl.conf file from a YAML associative array
|
|
|
|
:param sysctl_dict: a YAML-formatted string of sysctl options eg "{ 'kernel.max_pid': 1337 }"
|
|
:type sysctl_dict: str
|
|
:param sysctl_file: path to the sysctl file to be saved
|
|
:type sysctl_file: str or unicode
|
|
:returns: None
|
|
"""
|
|
try:
|
|
sysctl_dict_parsed = yaml.safe_load(sysctl_dict)
|
|
except yaml.YAMLError:
|
|
log("Error parsing YAML sysctl_dict: {}".format(sysctl_dict),
|
|
level=ERROR)
|
|
return
|
|
|
|
with open(sysctl_file, "w") as fd:
|
|
for key, value in sysctl_dict_parsed.items():
|
|
fd.write("{}={}\n".format(key, value))
|
|
|
|
log("Updating sysctl_file: %s values: %s" % (sysctl_file, sysctl_dict_parsed),
|
|
level=DEBUG)
|
|
|
|
check_call(["sysctl", "-p", sysctl_file])
|