mirror of
https://github.com/ansible-collections/community.general.git
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eb1214baad
Changes to the metadata format were approved here: https://github.com/ansible/proposals/issues/54 * Update documentation to the new metadata format * Changes to metadata-tool to account for new metadata * Add GPL license header * Add upgrade subcommand to upgrade metadata version * Change default metadata to the new format * Fix exclusion of non-modules from the metadata report * Fix ansible-doc for new module metadata * Exclude metadata version from ansible-doc output * Fix website docs generation for the new metadata * Update metadata schema in valiate-modules test * Update the metadata in all modules to the new version
301 lines
8.8 KiB
Python
301 lines
8.8 KiB
Python
#!/usr/bin/python
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# -*- coding: utf-8 -*-
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#
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# (c) 2015, Brian Coca <bcoca@ansible.com>
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#
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# This file is part of Ansible
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>
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ANSIBLE_METADATA = {'metadata_version': '1.0',
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'status': ['stableinterface'],
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'supported_by': 'community'}
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# This is a modification of @bcoca's `svc` module
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DOCUMENTATION = '''
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---
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module: runit
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author: "James Sumners (@jsumners)"
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version_added: "2.3"
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short_description: Manage runit services.
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description:
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- Controls runit services on remote hosts using the sv utility.
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options:
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name:
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required: true
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description:
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- Name of the service to manage.
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state:
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required: false
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choices: [ started, stopped, restarted, killed, reloaded, once ]
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description:
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- C(started)/C(stopped) are idempotent actions that will not run
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commands unless necessary. C(restarted) will always bounce the
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service (sv restart) and C(killed) will always bounce the service (sv force-stop).
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C(reloaded) will send a HUP (sv reload).
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C(once) will run a normally downed sv once (sv once), not really
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an idempotent operation.
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enabled:
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required: false
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choices: [ "yes", "no" ]
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description:
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- Wheater the service is enabled or not, if disabled it also implies stopped.
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service_dir:
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required: false
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default: /var/service
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description:
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- directory runsv watches for services
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service_src:
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required: false
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default: /etc/sv
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description:
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- directory where services are defined, the source of symlinks to service_dir.
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'''
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EXAMPLES = '''
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# Example action to start sv dnscache, if not running
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- sv:
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name: dnscache
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state: started
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# Example action to stop sv dnscache, if running
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- sv:
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name: dnscache
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state: stopped
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# Example action to kill sv dnscache, in all cases
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- sv:
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name: dnscache
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state: killed
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# Example action to restart sv dnscache, in all cases
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- sv:
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name: dnscache
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state: restarted
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# Example action to reload sv dnscache, in all cases
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- sv:
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name: dnscache
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state: reloaded
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# Example using alt sv directory location
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- sv:
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name: dnscache
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state: reloaded
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service_dir: /run/service
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'''
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import platform
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import shlex
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from ansible.module_utils.pycompat24 import get_exception
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from ansible.module_utils.basic import *
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def _load_dist_subclass(cls, *args, **kwargs):
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'''
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Used for derivative implementations
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'''
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subclass = None
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distro = kwargs['module'].params['distro']
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# get the most specific superclass for this platform
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if distro is not None:
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for sc in cls.__subclasses__():
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if sc.distro is not None and sc.distro == distro:
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subclass = sc
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if subclass is None:
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subclass = cls
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return super(cls, subclass).__new__(subclass)
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class Sv(object):
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"""
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Main class that handles daemontools, can be subclassed and overridden in case
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we want to use a 'derivative' like encore, s6, etc
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"""
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#def __new__(cls, *args, **kwargs):
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# return _load_dist_subclass(cls, args, kwargs)
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def __init__(self, module):
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self.extra_paths = [ ]
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self.report_vars = ['state', 'enabled', 'svc_full', 'src_full', 'pid', 'duration', 'full_state']
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self.module = module
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self.name = module.params['name']
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self.service_dir = module.params['service_dir']
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self.service_src = module.params['service_src']
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self.enabled = None
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self.full_state = None
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self.state = None
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self.pid = None
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self.duration = None
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self.svc_cmd = module.get_bin_path('sv', opt_dirs=self.extra_paths)
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self.svstat_cmd = module.get_bin_path('sv', opt_dirs=self.extra_paths)
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self.svc_full = '/'.join([ self.service_dir, self.name ])
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self.src_full = '/'.join([ self.service_src, self.name ])
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self.enabled = os.path.lexists(self.svc_full)
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if self.enabled:
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self.get_status()
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else:
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self.state = 'stopped'
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def enable(self):
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if os.path.exists(self.src_full):
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try:
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os.symlink(self.src_full, self.svc_full)
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except OSError:
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e = get_exception()
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self.module.fail_json(path=self.src_full, msg='Error while linking: %s' % str(e))
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else:
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self.module.fail_json(msg="Could not find source for service to enable (%s)." % self.src_full)
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def disable(self):
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self.execute_command([self.svc_cmd,'force-stop',self.src_full])
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try:
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os.unlink(self.svc_full)
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except OSError:
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e = get_exception()
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self.module.fail_json(path=self.svc_full, msg='Error while unlinking: %s' % str(e))
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def get_status(self):
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(rc, out, err) = self.execute_command([self.svstat_cmd, 'status', self.svc_full])
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if err is not None and err:
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self.full_state = self.state = err
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else:
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self.full_state = out
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m = re.search('\(pid (\d+)\)', out)
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if m:
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self.pid = m.group(1)
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m = re.search(' (\d+)s', out)
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if m:
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self.duration = m.group(1)
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if re.search('run:', out):
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self.state = 'started'
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elif re.search('down:', out):
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self.state = 'stopped'
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else:
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self.state = 'unknown'
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return
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def started(self):
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return self.start()
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def start(self):
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return self.execute_command([self.svc_cmd, 'start', self.svc_full])
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def stopped(self):
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return self.stop()
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def stop(self):
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return self.execute_command([self.svc_cmd, 'stop', self.svc_full])
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def once(self):
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return self.execute_command([self.svc_cmd, 'once', self.svc_full])
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def reloaded(self):
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return self.reload()
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def reload(self):
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return self.execute_command([self.svc_cmd, 'reload', self.svc_full])
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def restarted(self):
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return self.restart()
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def restart(self):
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return self.execute_command([self.svc_cmd, 'restart', self.svc_full])
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def killed(self):
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return self.kill()
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def kill(self):
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return self.execute_command([self.svc_cmd, 'force-stop', self.svc_full])
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def execute_command(self, cmd):
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try:
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(rc, out, err) = self.module.run_command(' '.join(cmd))
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except Exception:
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e = get_exception()
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self.module.fail_json(msg="failed to execute: %s" % str(e))
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return (rc, out, err)
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def report(self):
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self.get_status()
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states = {}
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for k in self.report_vars:
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states[k] = self.__dict__[k]
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return states
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# ===========================================
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# Main control flow
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def main():
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module = AnsibleModule(
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argument_spec = dict(
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name = dict(required=True),
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state = dict(choices=['started', 'stopped', 'restarted', 'killed', 'reloaded', 'once']),
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enabled = dict(required=False, type='bool'),
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dist = dict(required=False, default='runit'),
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service_dir = dict(required=False, default='/var/service'),
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service_src = dict(required=False, default='/etc/sv'),
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),
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supports_check_mode=True,
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)
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module.run_command_environ_update = dict(LANG='C', LC_ALL='C', LC_MESSAGES='C', LC_CTYPE='C')
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state = module.params['state']
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enabled = module.params['enabled']
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sv = Sv(module)
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changed = False
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orig_state = sv.report()
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if enabled is not None and enabled != sv.enabled:
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changed = True
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if not module.check_mode:
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try:
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if enabled:
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sv.enable()
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else:
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sv.disable()
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except (OSError, IOError):
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e = get_exception()
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module.fail_json(msg="Could not change service link: %s" % str(e))
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if state is not None and state != sv.state:
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changed = True
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if not module.check_mode:
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getattr(sv,state)()
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module.exit_json(changed=changed, sv=sv.report())
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if __name__ == '__main__':
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main()
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