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community.general/plugins/modules/system/modprobe.py

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2020-03-09 10:11:07 +01:00
#!/usr/bin/python
# -*- coding: utf-8 -*-
# Copyright: (c) 2013, David Stygstra <david.stygstra@gmail.com>
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
from __future__ import absolute_import, division, print_function
__metaclass__ = type
DOCUMENTATION = '''
---
module: modprobe
short_description: Load or unload kernel modules
author:
- David Stygstra (@stygstra)
- Julien Dauphant (@jdauphant)
- Matt Jeffery (@mattjeffery)
description:
- Load or unload kernel modules.
options:
name:
required: true
description:
- Name of kernel module to manage.
state:
description:
- Whether the module should be present or absent.
choices: [ absent, present ]
default: present
params:
description:
- Modules parameters.
default: ''
'''
EXAMPLES = '''
- name: Add the 802.1q module
modprobe:
name: 8021q
state: present
- name: Add the dummy module
modprobe:
name: dummy
state: present
params: 'numdummies=2'
'''
import os.path
import shlex
import traceback
from ansible.module_utils.basic import AnsibleModule
from ansible.module_utils._text import to_native
def main():
module = AnsibleModule(
argument_spec=dict(
name=dict(type='str', required=True),
state=dict(type='str', default='present', choices=['absent', 'present']),
params=dict(type='str', default=''),
),
supports_check_mode=True,
)
name = module.params['name']
params = module.params['params']
state = module.params['state']
# FIXME: Adding all parameters as result values is useless
result = dict(
changed=False,
name=name,
params=params,
state=state,
)
# Check if module is present
try:
present = False
with open('/proc/modules') as modules:
module_name = name.replace('-', '_') + ' '
for line in modules:
if line.startswith(module_name):
present = True
break
if not present:
command = [module.get_bin_path('uname', True), '-r']
rc, uname_kernel_release, err = module.run_command(command)
module_file = '/' + name + '.ko'
builtin_path = os.path.join('/lib/modules/', uname_kernel_release.strip(),
'modules.builtin')
with open(builtin_path) as builtins:
for line in builtins:
if line.endswith(module_file):
present = True
break
except IOError as e:
module.fail_json(msg=to_native(e), exception=traceback.format_exc(), **result)
# Add/remove module as needed
if state == 'present':
if not present:
if not module.check_mode:
command = [module.get_bin_path('modprobe', True), name]
command.extend(shlex.split(params))
rc, out, err = module.run_command(command)
if rc != 0:
module.fail_json(msg=err, rc=rc, stdout=out, stderr=err, **result)
result['changed'] = True
elif state == 'absent':
if present:
if not module.check_mode:
rc, out, err = module.run_command([module.get_bin_path('modprobe', True), '-r', name])
if rc != 0:
module.fail_json(msg=err, rc=rc, stdout=out, stderr=err, **result)
result['changed'] = True
module.exit_json(**result)
if __name__ == '__main__':
main()