461 lines
16 KiB
Python
461 lines
16 KiB
Python
|
#!/usr/bin/python
|
||
|
|
# -*- coding: utf-8 -*-
|
||
|
|
|
||
|
|
# (c) 2016, Shinichi TAMURA (@tmshn)
|
||
|
|
#
|
||
|
|
# 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 re
|
||
|
|
|
||
|
|
DOCUMENTATION = '''
|
||
|
|
---
|
||
|
|
module: timezone
|
||
|
|
short_description: Configure timezone setting
|
||
|
|
description:
|
||
|
|
- |
|
||
|
|
This module configures the timezone setting, both of the system clock
|
||
|
|
and of the hardware clock. I(Currently only Linux platform is supported.)
|
||
|
|
It is recommended to restart C(crond) after changing the timezone,
|
||
|
|
otherwise the jobs may run at the wrong time.
|
||
|
|
It uses the C(timedatectl) command if available. Otherwise, it edits
|
||
|
|
C(/etc/sysconfig/clock) or C(/etc/timezone) for the system clock,
|
||
|
|
and uses the C(hwclock) command for the hardware clock.
|
||
|
|
If you want to set up the NTP, use M(service) module.
|
||
|
|
version_added: "2.2.0"
|
||
|
|
options:
|
||
|
|
name:
|
||
|
|
description:
|
||
|
|
- |
|
||
|
|
Name of the timezone for the system clock.
|
||
|
|
Default is to keep current setting.
|
||
|
|
required: false
|
||
|
|
hwclock:
|
||
|
|
description:
|
||
|
|
- |
|
||
|
|
Whether the hardware clock is in UTC or in local timezone.
|
||
|
|
Default is to keep current setting.
|
||
|
|
Note that this option is recommended not to change and may fail
|
||
|
|
to configure, especially on virtual envoironments such as AWS.
|
||
|
|
required: false
|
||
|
|
aliases: ['rtc']
|
||
|
|
author: "Shinichi TAMURA @tmshn"
|
||
|
|
'''
|
||
|
|
|
||
|
|
RETURN = '''
|
||
|
|
diff:
|
||
|
|
description: The differences about the given arguments.
|
||
|
|
returned: success
|
||
|
|
type: dictionary
|
||
|
|
contains:
|
||
|
|
before:
|
||
|
|
description: The values before change
|
||
|
|
type: dict
|
||
|
|
after:
|
||
|
|
description: The values after change
|
||
|
|
type: dict
|
||
|
|
'''
|
||
|
|
|
||
|
|
EXAMPLES = '''
|
||
|
|
- name: set timezone to Asia/Tokyo
|
||
|
|
timezone: name=Asia/Tokyo
|
||
|
|
'''
|
||
|
|
|
||
|
|
|
||
|
|
class Timezone(object):
|
||
|
|
"""This is a generic Timezone manipulation class that is subclassed based on platform.
|
||
|
|
|
||
|
|
A subclass may wish to override the following action methods:
|
||
|
|
- get(key, phase) ... get the value from the system at `phase`
|
||
|
|
- set(key, value) ... set the value to the curren system
|
||
|
|
"""
|
||
|
|
|
||
|
|
def __new__(cls, module):
|
||
|
|
"""Return the platform-specific subclass.
|
||
|
|
|
||
|
|
It does not use load_platform_subclass() because it need to judge based
|
||
|
|
on whether the `timedatectl` command exists.
|
||
|
|
|
||
|
|
Args:
|
||
|
|
module: The AnsibleModule.
|
||
|
|
"""
|
||
|
|
if get_platform() == 'Linux':
|
||
|
|
if module.get_bin_path('timedatectl') is not None:
|
||
|
|
return super(Timezone, SystemdTimezone).__new__(SystemdTimezone)
|
||
|
|
else:
|
||
|
|
return super(Timezone, NosystemdTimezone).__new__(NosystemdTimezone)
|
||
|
|
else:
|
||
|
|
# Not supported yet
|
||
|
|
return super(Timezone, Timezone).__new__(Timezone)
|
||
|
|
|
||
|
|
def __init__(self, module):
|
||
|
|
"""Initialize of the class.
|
||
|
|
|
||
|
|
Args:
|
||
|
|
module: The AnsibleModule.
|
||
|
|
"""
|
||
|
|
super(Timezone, self).__init__()
|
||
|
|
self.msg = []
|
||
|
|
# `self.value` holds the values for each params on each phases.
|
||
|
|
# Initially there's only info of "planned" phase, but the
|
||
|
|
# `self.check()` function will fill out it.
|
||
|
|
self.value = dict()
|
||
|
|
for key in module.argument_spec.iterkeys():
|
||
|
|
value = module.params[key]
|
||
|
|
if value is not None:
|
||
|
|
self.value[key] = dict(planned=value)
|
||
|
|
self.module = module
|
||
|
|
|
||
|
|
def abort(self, msg):
|
||
|
|
"""Abort the process with error message.
|
||
|
|
|
||
|
|
This is just the wrapper of module.fail_json().
|
||
|
|
|
||
|
|
Args:
|
||
|
|
msg: The error message.
|
||
|
|
"""
|
||
|
|
error_msg = ['Error message:', msg]
|
||
|
|
if len(self.msg) > 0:
|
||
|
|
error_msg.append('Other message(s):')
|
||
|
|
error_msg.extend(self.msg)
|
||
|
|
self.module.fail_json(msg='\n'.join(error_msg))
|
||
|
|
|
||
|
|
def execute(self, *commands, **kwargs):
|
||
|
|
"""Execute the shell command.
|
||
|
|
|
||
|
|
This is just the wrapper of module.run_command().
|
||
|
|
|
||
|
|
Args:
|
||
|
|
*commands: The command to execute.
|
||
|
|
It will be concatinated with single space.
|
||
|
|
**kwargs: Only 'log' key is checked.
|
||
|
|
If kwargs['log'] is true, record the command to self.msg.
|
||
|
|
|
||
|
|
Returns:
|
||
|
|
stdout: Standard output of the command.
|
||
|
|
"""
|
||
|
|
command = ' '.join(commands)
|
||
|
|
(rc, stdout, stderr) = self.module.run_command(command, check_rc=True)
|
||
|
|
if kwargs.get('log', False):
|
||
|
|
self.msg.append('executed `{0}`'.format(command))
|
||
|
|
return stdout
|
||
|
|
|
||
|
|
def diff(self, phase1='before', phase2='after'):
|
||
|
|
"""Calculate the difference between given 2 phases.
|
||
|
|
|
||
|
|
Args:
|
||
|
|
phase1, phase2: The names of phase to compare.
|
||
|
|
|
||
|
|
Returns:
|
||
|
|
diff: The difference of value between phase1 and phase2.
|
||
|
|
This is in the format which can be used with the
|
||
|
|
`--diff` option of ansible-playbook.
|
||
|
|
"""
|
||
|
|
diff = {phase1: {}, phase2: {}}
|
||
|
|
for key, value in self.value.iteritems():
|
||
|
|
diff[phase1][key] = value[phase1]
|
||
|
|
diff[phase2][key] = value[phase2]
|
||
|
|
return diff
|
||
|
|
|
||
|
|
def check(self, phase):
|
||
|
|
"""Check the state in given phase and set it to `self.value`.
|
||
|
|
|
||
|
|
Args:
|
||
|
|
phase: The name of the phase to check.
|
||
|
|
|
||
|
|
Returns:
|
||
|
|
NO RETURN VALUE
|
||
|
|
"""
|
||
|
|
if phase == 'planned':
|
||
|
|
return
|
||
|
|
for key, value in self.value.iteritems():
|
||
|
|
value[phase] = self.get(key, phase)
|
||
|
|
|
||
|
|
def change(self):
|
||
|
|
"""Make the changes effect based on `self.value`."""
|
||
|
|
for key, value in self.value.iteritems():
|
||
|
|
if value['before'] != value['planned']:
|
||
|
|
self.set(key, value['planned'])
|
||
|
|
|
||
|
|
# ===========================================
|
||
|
|
# Platform specific methods (must be replaced by subclass).
|
||
|
|
|
||
|
|
def get(self, key, phase):
|
||
|
|
"""Get the value for the key at the given phase.
|
||
|
|
|
||
|
|
Called from self.check().
|
||
|
|
|
||
|
|
Args:
|
||
|
|
key: The key to get the value
|
||
|
|
phase: The phase to get the value
|
||
|
|
|
||
|
|
Return:
|
||
|
|
value: The value for the key at the given phase.
|
||
|
|
"""
|
||
|
|
self.abort('get(key, phase) is not implemented on target platform')
|
||
|
|
|
||
|
|
def set(self, key, value):
|
||
|
|
"""Set the value for the key (of course, for the phase 'after').
|
||
|
|
|
||
|
|
Called from self.change().
|
||
|
|
|
||
|
|
Args:
|
||
|
|
key: Key to set the value
|
||
|
|
value: Value to set
|
||
|
|
"""
|
||
|
|
self.abort('set(key, value) is not implemented on target platform')
|
||
|
|
|
||
|
|
|
||
|
|
class SystemdTimezone(Timezone):
|
||
|
|
"""This is a Timezone manipulation class systemd-powered Linux.
|
||
|
|
|
||
|
|
It uses the `timedatectl` command to check/set all arguments.
|
||
|
|
"""
|
||
|
|
|
||
|
|
regexps = dict(
|
||
|
|
hwclock=re.compile(r'^\s*RTC in local TZ\s*:\s*([^\s]+)', re.MULTILINE),
|
||
|
|
name =re.compile(r'^\s*Time ?zone\s*:\s*([^\s]+)', re.MULTILINE)
|
||
|
|
)
|
||
|
|
|
||
|
|
subcmds = dict(
|
||
|
|
hwclock='set-local-rtc',
|
||
|
|
name ='set-timezone'
|
||
|
|
)
|
||
|
|
|
||
|
|
def __init__(self, module):
|
||
|
|
super(SystemdTimezone, self).__init__(module)
|
||
|
|
self.timedatectl = module.get_bin_path('timedatectl', required=True)
|
||
|
|
self.status = dict()
|
||
|
|
# Validate given timezone
|
||
|
|
if 'name' in self.value:
|
||
|
|
tz = self.value['name']['planned']
|
||
|
|
tzfile = '/usr/share/zoneinfo/{0}'.format(tz)
|
||
|
|
if not os.path.isfile(tzfile):
|
||
|
|
self.abort('given timezone "{0}" is not available'.format(tz))
|
||
|
|
|
||
|
|
def _get_status(self, phase):
|
||
|
|
if phase not in self.status:
|
||
|
|
self.status[phase] = self.execute(self.timedatectl, 'status')
|
||
|
|
return self.status[phase]
|
||
|
|
|
||
|
|
def get(self, key, phase):
|
||
|
|
status = self._get_status(phase)
|
||
|
|
value = self.regexps[key].search(status).group(1)
|
||
|
|
if key == 'hwclock':
|
||
|
|
# For key='hwclock'; convert yes/no -> local/UTC
|
||
|
|
if self.module.boolean(value):
|
||
|
|
value = 'local'
|
||
|
|
else:
|
||
|
|
value = 'UTC'
|
||
|
|
return value
|
||
|
|
|
||
|
|
def set(self, key, value):
|
||
|
|
# For key='hwclock'; convert UTC/local -> yes/no
|
||
|
|
if key == 'hwclock':
|
||
|
|
if value == 'local':
|
||
|
|
value = 'yes'
|
||
|
|
else:
|
||
|
|
value = 'no'
|
||
|
|
self.execute(self.timedatectl, self.subcmds[key], value, log=True)
|
||
|
|
|
||
|
|
|
||
|
|
class NosystemdTimezone(Timezone):
|
||
|
|
"""This is a Timezone manipulation class for non systemd-powered Linux.
|
||
|
|
|
||
|
|
For timezone setting, it edits the following file and reflect changes:
|
||
|
|
- /etc/sysconfig/clock ... RHEL/CentOS
|
||
|
|
- /etc/timezone ... Debian/Ubnutu
|
||
|
|
For hwclock setting, it executes `hwclock --systohc` command with the
|
||
|
|
'--utc' or '--localtime' option.
|
||
|
|
"""
|
||
|
|
|
||
|
|
conf_files = dict(
|
||
|
|
name =None, # To be set in __init__
|
||
|
|
hwclock=None, # To be set in __init__
|
||
|
|
adjtime='/etc/adjtime'
|
||
|
|
)
|
||
|
|
|
||
|
|
regexps = dict(
|
||
|
|
name =None, # To be set in __init__
|
||
|
|
hwclock=re.compile(r'^UTC\s*=\s*([^\s]+)', re.MULTILINE),
|
||
|
|
adjtime=re.compile(r'^(UTC|LOCAL)$', re.MULTILINE)
|
||
|
|
)
|
||
|
|
|
||
|
|
def __init__(self, module):
|
||
|
|
super(NosystemdTimezone, self).__init__(module)
|
||
|
|
# Validate given timezone
|
||
|
|
if 'name' in self.value:
|
||
|
|
tz = self.value['name']['planned']
|
||
|
|
tzfile = '/usr/share/zoneinfo/{0}'.format(tz)
|
||
|
|
if not os.path.isfile(tzfile):
|
||
|
|
self.abort('given timezone "{0}" is not available'.format(tz))
|
||
|
|
self.update_timezone = self.module.get_bin_path('cp', required=True)
|
||
|
|
self.update_timezone += ' {0} /etc/localtime'.format(tzfile)
|
||
|
|
self.update_hwclock = self.module.get_bin_path('hwclock', required=True)
|
||
|
|
# Distribution-specific configurations
|
||
|
|
if self.module.get_bin_path('dpkg-reconfigure') is not None:
|
||
|
|
# Debian/Ubuntu
|
||
|
|
self.update_timezone = self.module.get_bin_path('dpkg-reconfigure', required=True)
|
||
|
|
self.update_timezone += ' --frontend noninteractive tzdata'
|
||
|
|
self.conf_files['name'] = '/etc/timezone',
|
||
|
|
self.conf_files['hwclock'] = '/etc/default/rcS',
|
||
|
|
self.regexps['name'] = re.compile(r'^([^\s]+)', re.MULTILINE)
|
||
|
|
self.tzline_format = '{0}\n'
|
||
|
|
else:
|
||
|
|
# RHEL/CentOS
|
||
|
|
if self.module.get_bin_path('tzdata-update') is not None:
|
||
|
|
self.update_timezone = self.module.get_bin_path('tzdata-update', required=True)
|
||
|
|
# else:
|
||
|
|
# self.update_timezone = 'cp ...' <- configured above
|
||
|
|
self.conf_files['name'] = '/etc/sysconfig/clock'
|
||
|
|
self.conf_files['hwclock'] = '/etc/sysconfig/clock'
|
||
|
|
self.regexps['name'] = re.compile(r'^ZONE\s*=\s*"?([^"\s]+)"?', re.MULTILINE)
|
||
|
|
self.tzline_format = 'ZONE="{0}"\n'
|
||
|
|
self.update_hwclock = self.module.get_bin_path('hwclock', required=True)
|
||
|
|
|
||
|
|
def _edit_file(self, filename, regexp, value):
|
||
|
|
"""Replace the first matched line with given `value`.
|
||
|
|
|
||
|
|
If `regexp` matched more than once, other than the first line will be deleted.
|
||
|
|
|
||
|
|
Args:
|
||
|
|
filename: The name of the file to edit.
|
||
|
|
regexp: The regular expression to search with.
|
||
|
|
value: The line which will be inserted.
|
||
|
|
"""
|
||
|
|
# Read the file
|
||
|
|
try:
|
||
|
|
file = open(filename, 'r')
|
||
|
|
except IOError:
|
||
|
|
self.abort('cannot read "{0}"'.format(filename))
|
||
|
|
else:
|
||
|
|
lines = file.readlines()
|
||
|
|
file.close()
|
||
|
|
# Find the all matched lines
|
||
|
|
matched_indices = []
|
||
|
|
for i, line in enumerate(lines):
|
||
|
|
if regexp.search(line):
|
||
|
|
matched_indices.append(i)
|
||
|
|
if len(matched_indices) > 0:
|
||
|
|
insert_line = matched_indices[0]
|
||
|
|
else:
|
||
|
|
insert_line = 0
|
||
|
|
# Remove all matched lines
|
||
|
|
for i in matched_indices[::-1]:
|
||
|
|
del lines[i]
|
||
|
|
# ...and insert the value
|
||
|
|
lines.insert(insert_line, value)
|
||
|
|
# Write the changes
|
||
|
|
try:
|
||
|
|
file = open(filename, 'w')
|
||
|
|
except IOError:
|
||
|
|
self.abort('cannot write to "{0}"'.format(filename))
|
||
|
|
else:
|
||
|
|
file.writelines(lines)
|
||
|
|
file.close()
|
||
|
|
self.msg.append('Added 1 line and deleted {0} line(s) on {1}'.format(len(matched_indices), filename))
|
||
|
|
|
||
|
|
def get(self, key, phase):
|
||
|
|
if key == 'hwclock' and os.path.isfile('/etc/adjtime'):
|
||
|
|
# If /etc/adjtime exists, use that file.
|
||
|
|
key = 'adjtime'
|
||
|
|
try:
|
||
|
|
file = open(self.conf_files[key], mode='r')
|
||
|
|
except IOError:
|
||
|
|
self.abort('cannot read configuration file "{0}" for {1}'.format(filename, key))
|
||
|
|
else:
|
||
|
|
status = file.read()
|
||
|
|
file.close()
|
||
|
|
try:
|
||
|
|
value = self.regexps[key].search(status).group(1)
|
||
|
|
except AttributeError:
|
||
|
|
self.abort('cannot find the valid value from configuration file "{0}" for {1}'.format(filename, key))
|
||
|
|
else:
|
||
|
|
if key == 'hwclock':
|
||
|
|
# For key='hwclock'; convert yes/no -> UTC/local
|
||
|
|
if self.module.boolean(value):
|
||
|
|
value = 'UTC'
|
||
|
|
else:
|
||
|
|
value = 'local'
|
||
|
|
elif key == 'adjtime':
|
||
|
|
# For key='adjtime'; convert LOCAL -> local
|
||
|
|
if value != 'UTC':
|
||
|
|
value = value.lower()
|
||
|
|
return value
|
||
|
|
|
||
|
|
def set_timezone(self, value):
|
||
|
|
self._edit_file(filename=self.conf_files['name'],
|
||
|
|
regexp=self.regexps['name'],
|
||
|
|
value=self.tzline_format.format(value))
|
||
|
|
self.execute(self.update_timezone)
|
||
|
|
|
||
|
|
def set_hwclock(self, value):
|
||
|
|
if value == 'local':
|
||
|
|
option = '--localtime'
|
||
|
|
else:
|
||
|
|
option = '--utc'
|
||
|
|
self.execute(self.update_hwclock, '--systohc', option, log=True)
|
||
|
|
|
||
|
|
def set(self, key, value):
|
||
|
|
if key == 'name':
|
||
|
|
self.set_timezone(value)
|
||
|
|
elif key == 'hwclock':
|
||
|
|
self.set_hwclock(value)
|
||
|
|
else:
|
||
|
|
self.abort('unknown parameter "{0}"'.format(key))
|
||
|
|
|
||
|
|
|
||
|
|
def main():
|
||
|
|
# Construct 'module' and 'tz'
|
||
|
|
arg_spec = dict(
|
||
|
|
hwclock=dict(choices=['UTC', 'local'], aliases=['rtc']),
|
||
|
|
name =dict(),
|
||
|
|
)
|
||
|
|
module = AnsibleModule(
|
||
|
|
argument_spec=arg_spec,
|
||
|
|
required_one_of=[arg_spec.keys()],
|
||
|
|
supports_check_mode=True
|
||
|
|
)
|
||
|
|
tz = Timezone(module)
|
||
|
|
|
||
|
|
# Check the current state
|
||
|
|
tz.check(phase='before')
|
||
|
|
if module.check_mode:
|
||
|
|
diff = tz.diff('before', 'planned')
|
||
|
|
# In check mode, 'planned' state is treated as 'after' state
|
||
|
|
diff['after'] = diff.pop('planned')
|
||
|
|
else:
|
||
|
|
# Make change
|
||
|
|
tz.change()
|
||
|
|
# Check the current state
|
||
|
|
tz.check(phase='after')
|
||
|
|
# Examine if the current state matches planned state
|
||
|
|
(after, planned) = tz.diff('after', 'planned').values()
|
||
|
|
if after != planned:
|
||
|
|
tz.abort('still not desired state, though changes have made')
|
||
|
|
diff = tz.diff('before', 'after')
|
||
|
|
|
||
|
|
changed = (diff['before'] != diff['after'])
|
||
|
|
if len(tz.msg) > 0:
|
||
|
|
module.exit_json(changed=changed, diff=diff, msg='\n'.join(tz.msg))
|
||
|
|
else:
|
||
|
|
module.exit_json(changed=changed, diff=diff)
|
||
|
|
|
||
|
|
|
||
|
|
from ansible.module_utils.basic import *
|
||
|
|
|
||
|
|
if __name__ == '__main__':
|
||
|
|
main()
|