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#!/usr/bin/python
# encoding: utf-8 -*-
# (c) 2013, Matthias Vogelgesang <matthias.vogelgesang@gmail.com>
#
# This file is part of Ansible
#
# Ansible is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Ansible is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
import os
import re
ANSIBLE_METADATA = {'status': ['preview'],
'supported_by': 'community',
'version': '1.0'}
DOCUMENTATION = '''
---
module: kernel_blacklist
author: "Matthias Vogelgesang (@matze)"
version_added: 1.4
short_description: Blacklist kernel modules
description:
- Add or remove kernel modules from blacklist.
options:
name:
required: true
description:
- Name of kernel module to black- or whitelist.
state:
required: false
default: "present"
choices: [ present, absent ]
description:
- Whether the module should be present in the blacklist or absent.
blacklist_file:
required: false
description:
- If specified, use this blacklist file instead of
C(/etc/modprobe.d/blacklist-ansible.conf).
default: null
requirements: []
'''
EXAMPLES = '''
# Blacklist the nouveau driver module
- kernel_blacklist:
name: nouveau
state: present
'''
class Blacklist(object):
def __init__(self, module, filename):
if not os.path.exists(filename):
open(filename, 'a').close()
self.filename = filename
self.module = module
def get_pattern(self):
return '^blacklist\s*' + self.module + '$'
def readlines(self):
f = open(self.filename, 'r')
lines = f.readlines()
f.close()
return lines
def module_listed(self):
lines = self.readlines()
pattern = self.get_pattern()
for line in lines:
stripped = line.strip()
if stripped.startswith('#'):
continue
if re.match(pattern, stripped):
return True
return False
def remove_module(self):
lines = self.readlines()
pattern = self.get_pattern()
f = open(self.filename, 'w')
for line in lines:
if not re.match(pattern, line.strip()):
f.write(line)
f.close()
def add_module(self):
f = open(self.filename, 'a')
f.write('blacklist %s\n' % self.module)
def main():
module = AnsibleModule(
argument_spec=dict(
name=dict(required=True),
state=dict(required=False, choices=['present', 'absent'],
default='present'),
blacklist_file=dict(required=False, default=None)
),
supports_check_mode=False,
)
args = dict(changed=False, failed=False,
name=module.params['name'], state=module.params['state'])
filename = '/etc/modprobe.d/blacklist-ansible.conf'
if module.params['blacklist_file']:
filename = module.params['blacklist_file']
blacklist = Blacklist(args['name'], filename)
if blacklist.module_listed():
if args['state'] == 'absent':
blacklist.remove_module()
args['changed'] = True
else:
if args['state'] == 'present':
blacklist.add_module()
args['changed'] = True
module.exit_json(**args)
# import module snippets
from ansible.module_utils.basic import *
if __name__ == '__main__':
main()
|
