#!/usr/bin/python
# -*- coding: utf-8 -*-
# (c) 2012, Michael DeHaan <michael.dehaan@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 shutil
import stat
import grp
import pwd
try:
import selinux
HAVE_SELINUX=True
except ImportError:
HAVE_SELINUX=False
DOCUMENTATION = '''
---
module: file
short_description: Sets attributes of files
description:
- Sets attributes of files, symlinks, and directories, or removes
files/symlinks/directories. Many other modules support the same options as
the M(file) module - including M(copy), M(template), and M(assemble).
options:
path:
description:
- defines the file being managed, unless when used with C(state=link), and then sets the destination to create a symbolic link to using I(src)
required: true
default: []
aliases: []
state:
description:
- If C(directory), all immediate subdirectories will be created if they
do not exist. If C(file), the file will NOT be created if it does not
exist, see the M(copy) or M(template) module if you want that behavior.
If C(link), the symbolic link will be created or changed. If C(absent),
directories will be recursively deleted, and files or symlinks will be
unlinked.
required: false
default: file
choices: [ file, link, directory, absent ]
mode:
required: false
default: null
choices: []
description:
- mode the file or directory should be, such as 0644 as would be fed to I(chmod)
owner:
required: false
default: null
choices: []
description:
- name of the user that should own the file/directory, as would be fed to I(chown)
group:
required: false
default: null
choices: []
description:
- name of the group that should own the file/directory, as would be fed to I(chown)
src:
required: false
default: null
choices: []
description:
- path of the file to link to (applies only to C(state=link)).
seuser:
required: false
default: null
choices: []
description:
- user part of SELinux file context. Will default to system policy, if
applicable. If set to C(_default), it will use the C(user) portion of the
policy if available
serole:
required: false
default: null
choices: []
description:
- role part of SELinux file context, C(_default) feature works as for I(seuser).
setype:
required: false
default: null
choices: []
description:
- type part of SELinux file context, C(_default) feature works as for I(seuser).
selevel:
required: false
default: "s0"
choices: []
description:
- level part of the SELinux file context. This is the MLS/MCS attribute,
sometimes known as the C(range). C(_default) feature works as for
I(seuser).
context:
required: false
default: null
choices: [ "default" ]
description:
- accepts only C(default) as value. This will restore a file's SELinux context
in the policy. Does nothing if no default value is available.
examples:
- code: "file: path=/etc/foo.conf owner=foo group=foo mode=0644"
description: Example from Ansible Playbooks
- code: "file: src=/file/to/link/to dest=/path/to/symlink owner=foo group=foo state=link"
notes:
- See also M(copy), M(template), M(assemble)
requirements: [ ]
author: Michael DeHaan
'''
def main():
# FIXME: pass this around, should not use global
global module
module = AnsibleModule(
check_invalid_arguments = False,
argument_spec = dict(
state = dict(choices=['file','directory','link','absent'], default='file'),
path = dict(aliases=['dest', 'name'], required=True),
),
add_file_common_args=True
)
params = module.params
state = params['state']
path = os.path.expanduser(params['path'])
# source is both the source of a symlink or an informational passing of the src for a template module
# or copy module, even if this module never uses it, it is needed to key off some things
src = params.get('src', None)
if src:
src = os.path.expanduser(src)
if src is not None and os.path.isdir(path) and state != "link":
params['path'] = path = os.path.join(path, os.path.basename(src))
file_args = module.load_file_common_arguments(params)
if state == 'link' and (src is None or path is None):
module.fail_json(msg='src and dest are required for "link" state')
elif path is None:
module.fail_json(msg='path is required')
changed = False
prev_state = 'absent'
if os.path.lexists(path):
if os.path.islink(path):
prev_state = 'link'
elif os.path.isdir(path):
prev_state = 'directory'
else:
prev_state = 'file'
if prev_state != 'absent' and state == 'absent':
try:
if prev_state == 'directory':
if os.path.islink(path):
os.unlink(path)
else:
try:
shutil.rmtree(path, ignore_errors=False)
except:
module.exit_json(msg="rmtree failed")
else:
os.unlink(path)
except Exception, e:
module.fail_json(path=path, msg=str(e))
module.exit_json(path=path, changed=True)
if prev_state != 'absent' and prev_state != state:
module.fail_json(path=path, msg='refusing to convert between %s and %s for %s' % (prev_state, state, src))
if prev_state == 'absent' and state == 'absent':
module.exit_json(path=path, changed=False)
if state == 'file':
if prev_state != 'file':
module.fail_json(path=path, msg='file (%s) does not exist, use copy or template module to create' % path)
changed = module.set_file_attributes_if_different(file_args, changed)
module.exit_json(path=path, changed=changed)
elif state == 'directory':
if prev_state == 'absent':
os.makedirs(path)
changed = True
changed = module.set_directory_attributes_if_different(file_args, changed)
module.exit_json(path=path, changed=changed)
elif state == 'link':
if os.path.isabs(src):
abs_src = src
else:
module.fail_json(msg="absolute paths are required")
if not os.path.exists(abs_src):
module.fail_json(path=path, src=src, msg='src file does not exist')
if prev_state == 'absent':
os.symlink(src, path)
changed = True
elif prev_state == 'link':
old_src = os.readlink(path)
if not os.path.isabs(old_src):
old_src = os.path.join(os.path.dirname(path), old_src)
if old_src != src:
os.unlink(path)
os.symlink(src, path)
changed = True
else:
module.fail_json(dest=path, src=src, msg='unexpected position reached')
# set modes owners and context as needed
file_args = module.load_file_common_arguments(module.params)
changed = module.set_context_if_different(path, file_args['secontext'], changed)
changed = module.set_owner_if_different(path, file_args['owner'], changed)
changed = module.set_group_if_different(path, file_args['group'], changed)
changed = module.set_mode_if_different(path, file_args['mode'], changed)
module.exit_json(dest=path, src=src, changed=changed)
module.fail_json(path=path, msg='unexpected position reached')
# this is magic, see lib/ansible/module_common.py
#<<INCLUDE_ANSIBLE_MODULE_COMMON>>
main()