mirror of
https://github.com/ansible-collections/community.general.git
synced 2025-06-16 21:29:11 -07:00
Unflatmap community.general (#5461)
* Move files. * Update imports and references. * Move wrongly placed files. * Reverse redirects, deprecate long → short name redirects. * Simplify contribution guidelines for new modules. * Rewrite BOTMETA. * Add changelog fragment. * Fix ignore.txt files.
This commit is contained in:
Felix Fontein
GitHub
parent
2b0bebc8fc
commit
b531ecdc9b
1033 changed files with 4802 additions and 1989 deletions
424
plugins/modules/cronvar.py
Normal file
424
plugins/modules/cronvar.py
Normal file
|
|
@ -0,0 +1,424 @@
|
|||
#!/usr/bin/python
|
||||
# -*- coding: utf-8 -*-
|
||||
|
||||
# Copyright (c) 2017, Ansible Project
|
||||
# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
|
||||
# SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
# Cronvar Plugin: The goal of this plugin is to provide an idempotent
|
||||
# method for set cron variable values. It should play well with the
|
||||
# existing cron module as well as allow for manually added variables.
|
||||
# Each variable entered will be preceded with a comment describing the
|
||||
# variable so that it can be found later. This is required to be
|
||||
# present in order for this plugin to find/modify the variable
|
||||
|
||||
# This module is based on the crontab module.
|
||||
|
||||
from __future__ import absolute_import, division, print_function
|
||||
__metaclass__ = type
|
||||
|
||||
DOCUMENTATION = r'''
|
||||
---
|
||||
module: cronvar
|
||||
short_description: Manage variables in crontabs
|
||||
description:
|
||||
- Use this module to manage crontab variables.
|
||||
- This module allows you to create, update, or delete cron variable definitions.
|
||||
options:
|
||||
name:
|
||||
description:
|
||||
- Name of the crontab variable.
|
||||
type: str
|
||||
required: true
|
||||
value:
|
||||
description:
|
||||
- The value to set this variable to.
|
||||
- Required if I(state=present).
|
||||
type: str
|
||||
insertafter:
|
||||
description:
|
||||
- If specified, the variable will be inserted after the variable specified.
|
||||
- Used with I(state=present).
|
||||
type: str
|
||||
insertbefore:
|
||||
description:
|
||||
- Used with I(state=present). If specified, the variable will be inserted
|
||||
just before the variable specified.
|
||||
type: str
|
||||
state:
|
||||
description:
|
||||
- Whether to ensure that the variable is present or absent.
|
||||
type: str
|
||||
choices: [ absent, present ]
|
||||
default: present
|
||||
user:
|
||||
description:
|
||||
- The specific user whose crontab should be modified.
|
||||
- This parameter defaults to C(root) when unset.
|
||||
type: str
|
||||
cron_file:
|
||||
description:
|
||||
- If specified, uses this file instead of an individual user's crontab.
|
||||
- Without a leading C(/), this is assumed to be in I(/etc/cron.d).
|
||||
- With a leading C(/), this is taken as absolute.
|
||||
type: str
|
||||
backup:
|
||||
description:
|
||||
- If set, create a backup of the crontab before it is modified.
|
||||
The location of the backup is returned in the C(backup) variable by this module.
|
||||
type: bool
|
||||
default: false
|
||||
requirements:
|
||||
- cron
|
||||
author:
|
||||
- Doug Luce (@dougluce)
|
||||
'''
|
||||
|
||||
EXAMPLES = r'''
|
||||
- name: Ensure entry like "EMAIL=doug@ansibmod.con.com" exists
|
||||
community.general.cronvar:
|
||||
name: EMAIL
|
||||
value: doug@ansibmod.con.com
|
||||
|
||||
- name: Ensure a variable does not exist. This may remove any variable named "LEGACY"
|
||||
community.general.cronvar:
|
||||
name: LEGACY
|
||||
state: absent
|
||||
|
||||
- name: Add a variable to a file under /etc/cron.d
|
||||
community.general.cronvar:
|
||||
name: LOGFILE
|
||||
value: /var/log/yum-autoupdate.log
|
||||
user: root
|
||||
cron_file: ansible_yum-autoupdate
|
||||
'''
|
||||
|
||||
import os
|
||||
import platform
|
||||
import pwd
|
||||
import re
|
||||
import shlex
|
||||
import sys
|
||||
import tempfile
|
||||
|
||||
from ansible.module_utils.basic import AnsibleModule
|
||||
from ansible.module_utils.six.moves import shlex_quote
|
||||
|
||||
|
||||
class CronVarError(Exception):
|
||||
pass
|
||||
|
||||
|
||||
class CronVar(object):
|
||||
"""
|
||||
CronVar object to write variables to crontabs.
|
||||
|
||||
user - the user of the crontab (defaults to root)
|
||||
cron_file - a cron file under /etc/cron.d
|
||||
"""
|
||||
|
||||
def __init__(self, module, user=None, cron_file=None):
|
||||
self.module = module
|
||||
self.user = user
|
||||
self.lines = None
|
||||
self.wordchars = ''.join(chr(x) for x in range(128) if chr(x) not in ('=', "'", '"',))
|
||||
self.cron_cmd = self.module.get_bin_path('crontab', required=True)
|
||||
|
||||
if cron_file:
|
||||
self.cron_file = ""
|
||||
if os.path.isabs(cron_file):
|
||||
self.cron_file = cron_file
|
||||
else:
|
||||
self.cron_file = os.path.join('/etc/cron.d', cron_file)
|
||||
else:
|
||||
self.cron_file = None
|
||||
|
||||
self.read()
|
||||
|
||||
def read(self):
|
||||
# Read in the crontab from the system
|
||||
self.lines = []
|
||||
if self.cron_file:
|
||||
# read the cronfile
|
||||
try:
|
||||
f = open(self.cron_file, 'r')
|
||||
self.lines = f.read().splitlines()
|
||||
f.close()
|
||||
except IOError:
|
||||
# cron file does not exist
|
||||
return
|
||||
except Exception:
|
||||
raise CronVarError("Unexpected error:", sys.exc_info()[0])
|
||||
else:
|
||||
# using safely quoted shell for now, but this really should be two non-shell calls instead. FIXME
|
||||
(rc, out, err) = self.module.run_command(self._read_user_execute(), use_unsafe_shell=True)
|
||||
|
||||
if rc != 0 and rc != 1: # 1 can mean that there are no jobs.
|
||||
raise CronVarError("Unable to read crontab")
|
||||
|
||||
lines = out.splitlines()
|
||||
count = 0
|
||||
for l in lines:
|
||||
if count > 2 or (not re.match(r'# DO NOT EDIT THIS FILE - edit the master and reinstall.', l
|
||||
) and not re.match(r'# \(/tmp/.*installed on.*\)', l) and not re.match(r'# \(.*version.*\)', l)):
|
||||
self.lines.append(l)
|
||||
count += 1
|
||||
|
||||
def log_message(self, message):
|
||||
self.module.debug('ansible: "%s"' % message)
|
||||
|
||||
def write(self, backup_file=None):
|
||||
"""
|
||||
Write the crontab to the system. Saves all information.
|
||||
"""
|
||||
if backup_file:
|
||||
fileh = open(backup_file, 'w')
|
||||
elif self.cron_file:
|
||||
fileh = open(self.cron_file, 'w')
|
||||
else:
|
||||
filed, path = tempfile.mkstemp(prefix='crontab')
|
||||
fileh = os.fdopen(filed, 'w')
|
||||
|
||||
fileh.write(self.render())
|
||||
fileh.close()
|
||||
|
||||
# return if making a backup
|
||||
if backup_file:
|
||||
return
|
||||
|
||||
# Add the entire crontab back to the user crontab
|
||||
if not self.cron_file:
|
||||
# quoting shell args for now but really this should be two non-shell calls. FIXME
|
||||
(rc, out, err) = self.module.run_command(self._write_execute(path), use_unsafe_shell=True)
|
||||
os.unlink(path)
|
||||
|
||||
if rc != 0:
|
||||
self.module.fail_json(msg=err)
|
||||
|
||||
def remove_variable_file(self):
|
||||
try:
|
||||
os.unlink(self.cron_file)
|
||||
return True
|
||||
except OSError:
|
||||
# cron file does not exist
|
||||
return False
|
||||
except Exception:
|
||||
raise CronVarError("Unexpected error:", sys.exc_info()[0])
|
||||
|
||||
def parse_for_var(self, line):
|
||||
lexer = shlex.shlex(line)
|
||||
lexer.wordchars = self.wordchars
|
||||
varname = lexer.get_token()
|
||||
is_env_var = lexer.get_token() == '='
|
||||
value = ''.join(lexer)
|
||||
if is_env_var:
|
||||
return (varname, value)
|
||||
raise CronVarError("Not a variable.")
|
||||
|
||||
def find_variable(self, name):
|
||||
for l in self.lines:
|
||||
try:
|
||||
(varname, value) = self.parse_for_var(l)
|
||||
if varname == name:
|
||||
return value
|
||||
except CronVarError:
|
||||
pass
|
||||
return None
|
||||
|
||||
def get_var_names(self):
|
||||
var_names = []
|
||||
for l in self.lines:
|
||||
try:
|
||||
var_name, dummy = self.parse_for_var(l)
|
||||
var_names.append(var_name)
|
||||
except CronVarError:
|
||||
pass
|
||||
return var_names
|
||||
|
||||
def add_variable(self, name, value, insertbefore, insertafter):
|
||||
if insertbefore is None and insertafter is None:
|
||||
# Add the variable to the top of the file.
|
||||
self.lines.insert(0, "%s=%s" % (name, value))
|
||||
else:
|
||||
newlines = []
|
||||
for l in self.lines:
|
||||
try:
|
||||
varname, dummy = self.parse_for_var(l) # Throws if not a var line
|
||||
if varname == insertbefore:
|
||||
newlines.append("%s=%s" % (name, value))
|
||||
newlines.append(l)
|
||||
elif varname == insertafter:
|
||||
newlines.append(l)
|
||||
newlines.append("%s=%s" % (name, value))
|
||||
else:
|
||||
raise CronVarError # Append.
|
||||
except CronVarError:
|
||||
newlines.append(l)
|
||||
|
||||
self.lines = newlines
|
||||
|
||||
def remove_variable(self, name):
|
||||
self.update_variable(name, None, remove=True)
|
||||
|
||||
def update_variable(self, name, value, remove=False):
|
||||
newlines = []
|
||||
for l in self.lines:
|
||||
try:
|
||||
varname, dummy = self.parse_for_var(l) # Throws if not a var line
|
||||
if varname != name:
|
||||
raise CronVarError # Append.
|
||||
if not remove:
|
||||
newlines.append("%s=%s" % (name, value))
|
||||
except CronVarError:
|
||||
newlines.append(l)
|
||||
|
||||
self.lines = newlines
|
||||
|
||||
def render(self):
|
||||
"""
|
||||
Render a proper crontab
|
||||
"""
|
||||
result = '\n'.join(self.lines)
|
||||
if result and result[-1] not in ['\n', '\r']:
|
||||
result += '\n'
|
||||
return result
|
||||
|
||||
def _read_user_execute(self):
|
||||
"""
|
||||
Returns the command line for reading a crontab
|
||||
"""
|
||||
user = ''
|
||||
|
||||
if self.user:
|
||||
if platform.system() == 'SunOS':
|
||||
return "su %s -c '%s -l'" % (shlex_quote(self.user), shlex_quote(self.cron_cmd))
|
||||
elif platform.system() == 'AIX':
|
||||
return "%s -l %s" % (shlex_quote(self.cron_cmd), shlex_quote(self.user))
|
||||
elif platform.system() == 'HP-UX':
|
||||
return "%s %s %s" % (self.cron_cmd, '-l', shlex_quote(self.user))
|
||||
elif pwd.getpwuid(os.getuid())[0] != self.user:
|
||||
user = '-u %s' % shlex_quote(self.user)
|
||||
return "%s %s %s" % (self.cron_cmd, user, '-l')
|
||||
|
||||
def _write_execute(self, path):
|
||||
"""
|
||||
Return the command line for writing a crontab
|
||||
"""
|
||||
user = ''
|
||||
if self.user:
|
||||
if platform.system() in ['SunOS', 'HP-UX', 'AIX']:
|
||||
return "chown %s %s ; su '%s' -c '%s %s'" % (
|
||||
shlex_quote(self.user), shlex_quote(path), shlex_quote(self.user), self.cron_cmd, shlex_quote(path))
|
||||
elif pwd.getpwuid(os.getuid())[0] != self.user:
|
||||
user = '-u %s' % shlex_quote(self.user)
|
||||
return "%s %s %s" % (self.cron_cmd, user, shlex_quote(path))
|
||||
|
||||
|
||||
# ==================================================
|
||||
|
||||
def main():
|
||||
# The following example playbooks:
|
||||
#
|
||||
# - community.general.cronvar: name="SHELL" value="/bin/bash"
|
||||
#
|
||||
# - name: Set the email
|
||||
# community.general.cronvar: name="EMAILTO" value="doug@ansibmod.con.com"
|
||||
#
|
||||
# - name: Get rid of the old new host variable
|
||||
# community.general.cronvar: name="NEW_HOST" state=absent
|
||||
#
|
||||
# Would produce:
|
||||
# SHELL = /bin/bash
|
||||
# EMAILTO = doug@ansibmod.con.com
|
||||
|
||||
module = AnsibleModule(
|
||||
argument_spec=dict(
|
||||
name=dict(type='str', required=True),
|
||||
value=dict(type='str'),
|
||||
user=dict(type='str'),
|
||||
cron_file=dict(type='str'),
|
||||
insertafter=dict(type='str'),
|
||||
insertbefore=dict(type='str'),
|
||||
state=dict(type='str', default='present', choices=['absent', 'present']),
|
||||
backup=dict(type='bool', default=False),
|
||||
),
|
||||
mutually_exclusive=[['insertbefore', 'insertafter']],
|
||||
supports_check_mode=False,
|
||||
)
|
||||
|
||||
name = module.params['name']
|
||||
value = module.params['value']
|
||||
user = module.params['user']
|
||||
cron_file = module.params['cron_file']
|
||||
insertafter = module.params['insertafter']
|
||||
insertbefore = module.params['insertbefore']
|
||||
state = module.params['state']
|
||||
backup = module.params['backup']
|
||||
ensure_present = state == 'present'
|
||||
|
||||
changed = False
|
||||
res_args = dict()
|
||||
|
||||
# Ensure all files generated are only writable by the owning user. Primarily relevant for the cron_file option.
|
||||
os.umask(int('022', 8))
|
||||
cronvar = CronVar(module, user, cron_file)
|
||||
|
||||
module.debug('cronvar instantiated - name: "%s"' % name)
|
||||
|
||||
# --- user input validation ---
|
||||
|
||||
if name is None and ensure_present:
|
||||
module.fail_json(msg="You must specify 'name' to insert a new cron variable")
|
||||
|
||||
if value is None and ensure_present:
|
||||
module.fail_json(msg="You must specify 'value' to insert a new cron variable")
|
||||
|
||||
if name is None and not ensure_present:
|
||||
module.fail_json(msg="You must specify 'name' to remove a cron variable")
|
||||
|
||||
# if requested make a backup before making a change
|
||||
if backup:
|
||||
dummy, backup_file = tempfile.mkstemp(prefix='cronvar')
|
||||
cronvar.write(backup_file)
|
||||
|
||||
if cronvar.cron_file and not name and not ensure_present:
|
||||
changed = cronvar.remove_job_file()
|
||||
module.exit_json(changed=changed, cron_file=cron_file, state=state)
|
||||
|
||||
old_value = cronvar.find_variable(name)
|
||||
|
||||
if ensure_present:
|
||||
if old_value is None:
|
||||
cronvar.add_variable(name, value, insertbefore, insertafter)
|
||||
changed = True
|
||||
elif old_value != value:
|
||||
cronvar.update_variable(name, value)
|
||||
changed = True
|
||||
else:
|
||||
if old_value is not None:
|
||||
cronvar.remove_variable(name)
|
||||
changed = True
|
||||
|
||||
res_args = {
|
||||
"vars": cronvar.get_var_names(),
|
||||
"changed": changed
|
||||
}
|
||||
|
||||
if changed:
|
||||
cronvar.write()
|
||||
|
||||
# retain the backup only if crontab or cron file have changed
|
||||
if backup:
|
||||
if changed:
|
||||
res_args['backup_file'] = backup_file
|
||||
else:
|
||||
os.unlink(backup_file)
|
||||
|
||||
if cron_file:
|
||||
res_args['cron_file'] = cron_file
|
||||
|
||||
module.exit_json(**res_args)
|
||||
|
||||
|
||||
if __name__ == '__main__':
|
||||
main()
|
||||
Loading…
Add table
Add a link
Reference in a new issue