350 lines
13 KiB
Python
350 lines
13 KiB
Python
#!/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
|
|
version_added: "historical"
|
|
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:
|
|
- 'path to the file being managed. Aliases: I(dest), I(name)'
|
|
required: true
|
|
default: []
|
|
aliases: ['dest', 'name']
|
|
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. Use C(hard)
|
|
for hardlinks. If C(absent), directories will be recursively deleted,
|
|
and files or symlinks will be unlinked. If C(touch) (new in 1.4), an empty file will
|
|
be created if the c(path) does not exist, while an existing file or
|
|
directory will receive updated file access and modification times (similar
|
|
to the way `touch` works from the command line).
|
|
required: false
|
|
default: file
|
|
choices: [ file, link, directory, hard, touch, 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 or hard)). Will accept absolute,
|
|
relative and nonexisting (with C(force)) paths. Relative paths are not expanded.
|
|
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).
|
|
recurse:
|
|
required: false
|
|
default: "no"
|
|
choices: [ "yes", "no" ]
|
|
version_added: "1.1"
|
|
description:
|
|
- recursively set the specified file attributes (applies only to state=directory)
|
|
force:
|
|
required: false
|
|
default: "no"
|
|
choices: [ "yes", "no" ]
|
|
description:
|
|
- 'force the creation of the symlinks in two cases: the source file does
|
|
not exist (but will appear later); the destination exists and is a file (so, we need to unlink the
|
|
"path" file and create symlink to the "src" file in place of it).'
|
|
notes:
|
|
- See also M(copy), M(template), M(assemble)
|
|
requirements: [ ]
|
|
author: Michael DeHaan
|
|
'''
|
|
|
|
EXAMPLES = '''
|
|
- file: path=/etc/foo.conf owner=foo group=foo mode=0644
|
|
- file: src=/file/to/link/to dest=/path/to/symlink owner=foo group=foo state=link
|
|
'''
|
|
|
|
def main():
|
|
|
|
module = AnsibleModule(
|
|
argument_spec = dict(
|
|
state = dict(choices=['file','directory','link','hard','touch','absent'], default=None),
|
|
path = dict(aliases=['dest', 'name'], required=True),
|
|
original_basename = dict(required=False), # Internal use only, for recursive ops
|
|
recurse = dict(default='no', type='bool'),
|
|
force = dict(required=False,default=False,type='bool'),
|
|
diff_peek = dict(default=None),
|
|
validate = dict(required=False, default=None),
|
|
src = dict(required=False, default=None),
|
|
),
|
|
add_file_common_args=True,
|
|
supports_check_mode=True
|
|
)
|
|
|
|
params = module.params
|
|
state = params['state']
|
|
force = params['force']
|
|
diff_peek = params['diff_peek']
|
|
src = params['src']
|
|
|
|
# modify source as we later reload and pass, specially relevant when used by other modules.
|
|
params['path'] = path = os.path.expanduser(params['path'])
|
|
|
|
# short-circuit for diff_peek
|
|
if diff_peek is not None:
|
|
appears_binary = False
|
|
try:
|
|
f = open(path)
|
|
b = f.read(8192)
|
|
f.close()
|
|
if "\x00" in b:
|
|
appears_binary = True
|
|
except:
|
|
pass
|
|
module.exit_json(path=path, changed=False, appears_binary=appears_binary)
|
|
|
|
# Find out current state
|
|
prev_state = 'absent'
|
|
if os.path.lexists(path):
|
|
if os.path.islink(path):
|
|
prev_state = 'link'
|
|
elif os.path.isdir(path):
|
|
prev_state = 'directory'
|
|
elif os.stat(path).st_nlink > 1:
|
|
prev_state = 'hard'
|
|
else:
|
|
# could be many other things, but defaulting to file
|
|
prev_state = 'file'
|
|
|
|
# state should default to file, but since that creates many conflicts,
|
|
# default to 'current' when it exists.
|
|
if state is None:
|
|
if prev_state != 'absent':
|
|
state = prev_state
|
|
else:
|
|
state = 'file'
|
|
|
|
# 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
|
|
if src is not None:
|
|
src = os.path.expanduser(src)
|
|
|
|
# original_basename is used by other modules that depend on file.
|
|
if os.path.isdir(path) and state not in ["link", "absent"]:
|
|
if params['original_basename']:
|
|
basename = params['original_basename']
|
|
else:
|
|
basename = os.path.basename(src)
|
|
params['path'] = path = os.path.join(path, basename)
|
|
else:
|
|
if state in ['link','hard']:
|
|
module.fail_json(msg='src and dest are required for creating links')
|
|
|
|
file_args = module.load_file_common_arguments(params)
|
|
changed = False
|
|
|
|
recurse = params['recurse']
|
|
if recurse and state != 'directory':
|
|
module.fail_json(path=path, msg="recurse option requires state to be 'directory'")
|
|
|
|
if state == 'absent':
|
|
if state != prev_state:
|
|
if not module.check_mode:
|
|
if prev_state == 'directory':
|
|
try:
|
|
shutil.rmtree(path, ignore_errors=False)
|
|
except Exception, e:
|
|
module.fail_json(msg="rmtree failed: %s" % str(e))
|
|
else:
|
|
try:
|
|
os.unlink(path)
|
|
except Exception, e:
|
|
module.fail_json(path=path, msg="unlinking failed: %s " % str(e))
|
|
module.exit_json(path=path, changed=True)
|
|
else:
|
|
module.exit_json(path=path, changed=False)
|
|
|
|
elif state == 'file':
|
|
if state != prev_state:
|
|
# file is not absent and any other state is a conflict
|
|
module.fail_json(path=path, msg='file (%s) is %s, cannot continue' % (path, prev_state))
|
|
|
|
changed = module.set_fs_attributes_if_different(file_args, changed)
|
|
module.exit_json(path=path, changed=changed)
|
|
|
|
elif state == 'directory':
|
|
if prev_state == 'absent':
|
|
if module.check_mode:
|
|
module.exit_json(changed=True)
|
|
os.makedirs(path)
|
|
changed = True
|
|
|
|
changed = module.set_fs_attributes_if_different(file_args, changed)
|
|
|
|
if recurse:
|
|
for root,dirs,files in os.walk( file_args['path'] ):
|
|
for fsobj in dirs + files:
|
|
fsname=os.path.join(root, fsobj)
|
|
tmp_file_args = file_args.copy()
|
|
tmp_file_args['path']=fsname
|
|
changed = module.set_fs_attributes_if_different(tmp_file_args, changed)
|
|
|
|
module.exit_json(path=path, changed=changed)
|
|
|
|
elif state in ['link','hard']:
|
|
|
|
absrc = src
|
|
if not os.path.isabs(absrc):
|
|
absrc = os.path.normpath('%s/%s' % (os.path.dirname(path), absrc))
|
|
|
|
if not os.path.exists(absrc) and not force:
|
|
module.fail_json(path=path, src=src, msg='src file does not exist, use "force=yes" if you really want to create the link: %s' % absrc)
|
|
|
|
if state == 'hard':
|
|
if not os.path.isabs(src):
|
|
module.fail_json(msg="absolute paths are required")
|
|
|
|
elif prev_state in ['file', 'hard', 'directory'] and not force:
|
|
module.fail_json(path=path, msg='refusing to convert between %s and %s for %s' % (prev_state, state, src))
|
|
|
|
if prev_state == 'absent':
|
|
changed = True
|
|
elif prev_state == 'link':
|
|
old_src = os.readlink(path)
|
|
if old_src != src:
|
|
changed = True
|
|
elif prev_state == 'hard':
|
|
if not (state == 'hard' and os.stat(path).st_ino == os.stat(src).st_ino):
|
|
changed = True
|
|
if not force:
|
|
module.fail_json(dest=path, src=src, msg='Cannot link, different hard link exists at destination')
|
|
elif prev_state in ['file', 'directory']:
|
|
changed = True
|
|
if not force:
|
|
module.fail_json(dest=path, src=src, msg='Cannot link, %s exists at destination' % prev_state)
|
|
else:
|
|
module.fail_json(dest=path, src=src, msg='unexpected position reached')
|
|
|
|
if changed and not module.check_mode:
|
|
if prev_state != 'absent':
|
|
# try to replace atomically
|
|
tmppath = ".%s.%s.%s.tmp" % (path,os.getpid(),time.time())
|
|
try:
|
|
if state == 'hard':
|
|
os.link(src,tmppath)
|
|
else:
|
|
os.symlink(src, tmppath)
|
|
os.rename(tmppath, path)
|
|
except OSError, e:
|
|
os.unlink(tmppath)
|
|
module.fail_json(path=path, msg='Error while replacing: %s' % str(e))
|
|
try:
|
|
if state == 'hard':
|
|
os.link(src,path)
|
|
else:
|
|
os.symlink(src, path)
|
|
except OSError, e:
|
|
module.fail_json(path=path, msg='Error while linking: %s' % str(e))
|
|
|
|
changed = module.set_fs_attributes_if_different(file_args, changed)
|
|
module.exit_json(dest=path, src=src, changed=changed)
|
|
|
|
elif state == 'touch':
|
|
if not module.check_mode:
|
|
|
|
if prev_state == 'absent':
|
|
try:
|
|
open(path, 'w').close()
|
|
except OSError, e:
|
|
module.fail_json(path=path, msg='Error, could not touch target: %s' % str(e))
|
|
elif prev_state in ['file', 'directory']:
|
|
try:
|
|
os.utime(path, None)
|
|
except OSError, e:
|
|
module.fail_json(path=path, msg='Error while touching existing target: %s' % str(e))
|
|
else:
|
|
module.fail_json(msg='Cannot touch other than files and directories')
|
|
|
|
module.set_fs_attributes_if_different(file_args, True)
|
|
|
|
module.exit_json(dest=path, changed=True)
|
|
|
|
module.fail_json(path=path, msg='unexpected position reached')
|
|
|
|
# import module snippets
|
|
from ansible.module_utils.basic import *
|
|
main()
|
|
|