141 lines
3.7 KiB
Python
141 lines
3.7 KiB
Python
#!/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
|
|
|
|
|
|
DOCUMENTATION = '''
|
|
---
|
|
module: kernel_blacklist
|
|
author: Matthias Vogelgesang
|
|
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)
|
|
|
|
# this is magic, see lib/ansible/module_common.py
|
|
from ansible.module_utils.basic import *
|
|
main()
|