charm-ceph-proxy/hooks/charmhelpers/core/sysctl.py

35 lines
887 B
Python

#!/usr/bin/env python
# -*- coding: utf-8 -*-
__author__ = 'Jorge Niedbalski R. <jorge.niedbalski@canonical.com>'
import yaml
from subprocess import check_call
from charmhelpers.core.hookenv import (
log,
DEBUG,
)
def create(sysctl_dict, sysctl_file):
"""Creates a sysctl.conf file from a YAML associative array
:param sysctl_dict: a dict of sysctl options eg { 'kernel.max_pid': 1337 }
:type sysctl_dict: dict
:param sysctl_file: path to the sysctl file to be saved
:type sysctl_file: str or unicode
:returns: None
"""
sysctl_dict = yaml.load(sysctl_dict)
with open(sysctl_file, "w") as fd:
for key, value in sysctl_dict.items():
fd.write("{}={}\n".format(key, value))
log("Updating sysctl_file: %s values: %s" % (sysctl_file, sysctl_dict),
level=DEBUG)
check_call(["sysctl", "-p", sysctl_file])