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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-13 12:04:41 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-13 12:04:41 +0000
commit975f66f2eebe9dadba04f275774d4ab83f74cf25 (patch)
tree89bd26a93aaae6a25749145b7e4bca4a1e75b2be /ansible_collections/community/general/plugins/modules/runit.py
parentInitial commit. (diff)
downloadansible-975f66f2eebe9dadba04f275774d4ab83f74cf25.tar.xz
ansible-975f66f2eebe9dadba04f275774d4ab83f74cf25.zip
Adding upstream version 7.7.0+dfsg.upstream/7.7.0+dfsg
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'ansible_collections/community/general/plugins/modules/runit.py')
-rw-r--r--ansible_collections/community/general/plugins/modules/runit.py262
1 files changed, 262 insertions, 0 deletions
diff --git a/ansible_collections/community/general/plugins/modules/runit.py b/ansible_collections/community/general/plugins/modules/runit.py
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+++ b/ansible_collections/community/general/plugins/modules/runit.py
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+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2015, Brian Coca <bcoca@ansible.com>
+# 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
+
+from __future__ import absolute_import, division, print_function
+__metaclass__ = type
+
+DOCUMENTATION = r'''
+---
+module: runit
+author:
+ - James Sumners (@jsumners)
+short_description: Manage runit services
+description:
+ - Controls runit services on remote hosts using the sv utility.
+extends_documentation_fragment:
+ - community.general.attributes
+attributes:
+ check_mode:
+ support: full
+ diff_mode:
+ support: none
+options:
+ name:
+ description:
+ - Name of the service to manage.
+ type: str
+ required: true
+ state:
+ description:
+ - C(started)/C(stopped) are idempotent actions that will not run
+ commands unless necessary. C(restarted) will always bounce the
+ service (sv restart) and C(killed) will always bounce the service (sv force-stop).
+ C(reloaded) will send a HUP (sv reload).
+ C(once) will run a normally downed sv once (sv once), not really
+ an idempotent operation.
+ type: str
+ choices: [ killed, once, reloaded, restarted, started, stopped ]
+ enabled:
+ description:
+ - Whether the service is enabled or not, if disabled it also implies stopped.
+ type: bool
+ service_dir:
+ description:
+ - directory runsv watches for services
+ type: str
+ default: /var/service
+ service_src:
+ description:
+ - directory where services are defined, the source of symlinks to service_dir.
+ type: str
+ default: /etc/sv
+'''
+
+EXAMPLES = r'''
+- name: Start sv dnscache, if not running
+ community.general.runit:
+ name: dnscache
+ state: started
+
+- name: Stop sv dnscache, if running
+ community.general.runit:
+ name: dnscache
+ state: stopped
+
+- name: Kill sv dnscache, in all cases
+ community.general.runit:
+ name: dnscache
+ state: killed
+
+- name: Restart sv dnscache, in all cases
+ community.general.runit:
+ name: dnscache
+ state: restarted
+
+- name: Reload sv dnscache, in all cases
+ community.general.runit:
+ name: dnscache
+ state: reloaded
+
+- name: Use alternative sv directory location
+ community.general.runit:
+ name: dnscache
+ state: reloaded
+ service_dir: /run/service
+'''
+
+import os
+import re
+
+from ansible.module_utils.basic import AnsibleModule
+from ansible.module_utils.common.text.converters import to_native
+
+
+class Sv(object):
+ """
+ Main class that handles daemontools, can be subclassed and overridden in case
+ we want to use a 'derivative' like encore, s6, etc
+ """
+
+ def __init__(self, module):
+ self.extra_paths = []
+ self.report_vars = ['state', 'enabled', 'svc_full', 'src_full', 'pid', 'duration', 'full_state']
+
+ self.module = module
+
+ self.name = module.params['name']
+ self.service_dir = module.params['service_dir']
+ self.service_src = module.params['service_src']
+ self.enabled = None
+ self.full_state = None
+ self.state = None
+ self.pid = None
+ self.duration = None
+
+ self.svc_cmd = module.get_bin_path('sv', opt_dirs=self.extra_paths, required=True)
+ self.svstat_cmd = module.get_bin_path('sv', opt_dirs=self.extra_paths)
+ self.svc_full = '/'.join([self.service_dir, self.name])
+ self.src_full = '/'.join([self.service_src, self.name])
+
+ self.enabled = os.path.lexists(self.svc_full)
+ if self.enabled:
+ self.get_status()
+ else:
+ self.state = 'stopped'
+
+ def enable(self):
+ if os.path.exists(self.src_full):
+ try:
+ os.symlink(self.src_full, self.svc_full)
+ except OSError as e:
+ self.module.fail_json(path=self.src_full, msg='Error while linking: %s' % to_native(e))
+ else:
+ self.module.fail_json(msg="Could not find source for service to enable (%s)." % self.src_full)
+
+ def disable(self):
+ self.execute_command([self.svc_cmd, 'force-stop', self.src_full])
+ try:
+ os.unlink(self.svc_full)
+ except OSError as e:
+ self.module.fail_json(path=self.svc_full, msg='Error while unlinking: %s' % to_native(e))
+
+ def get_status(self):
+ (rc, out, err) = self.execute_command([self.svstat_cmd, 'status', self.svc_full])
+
+ if err is not None and err:
+ self.full_state = self.state = err
+ else:
+ self.full_state = out
+ # full_state *may* contain information about the logger:
+ # "down: /etc/service/service-without-logger: 1s, normally up\n"
+ # "down: /etc/service/updater: 127s, normally up; run: log: (pid 364) 263439s\n"
+ full_state_no_logger = self.full_state.split("; ")[0]
+
+ m = re.search(r'\(pid (\d+)\)', full_state_no_logger)
+ if m:
+ self.pid = m.group(1)
+
+ m = re.search(r' (\d+)s', full_state_no_logger)
+ if m:
+ self.duration = m.group(1)
+
+ if re.search(r'^run:', full_state_no_logger):
+ self.state = 'started'
+ elif re.search(r'^down:', full_state_no_logger):
+ self.state = 'stopped'
+ else:
+ self.state = 'unknown'
+ return
+
+ def started(self):
+ return self.start()
+
+ def start(self):
+ return self.execute_command([self.svc_cmd, 'start', self.svc_full])
+
+ def stopped(self):
+ return self.stop()
+
+ def stop(self):
+ return self.execute_command([self.svc_cmd, 'stop', self.svc_full])
+
+ def once(self):
+ return self.execute_command([self.svc_cmd, 'once', self.svc_full])
+
+ def reloaded(self):
+ return self.reload()
+
+ def reload(self):
+ return self.execute_command([self.svc_cmd, 'reload', self.svc_full])
+
+ def restarted(self):
+ return self.restart()
+
+ def restart(self):
+ return self.execute_command([self.svc_cmd, 'restart', self.svc_full])
+
+ def killed(self):
+ return self.kill()
+
+ def kill(self):
+ return self.execute_command([self.svc_cmd, 'force-stop', self.svc_full])
+
+ def execute_command(self, cmd):
+ try:
+ (rc, out, err) = self.module.run_command(cmd)
+ except Exception as e:
+ self.module.fail_json(msg="failed to execute: %s" % to_native(e))
+ return rc, out, err
+
+ def report(self):
+ self.get_status()
+ states = {}
+ for k in self.report_vars:
+ states[k] = self.__dict__[k]
+ return states
+
+
+def main():
+ module = AnsibleModule(
+ argument_spec=dict(
+ name=dict(type='str', required=True),
+ state=dict(type='str', choices=['killed', 'once', 'reloaded', 'restarted', 'started', 'stopped']),
+ enabled=dict(type='bool'),
+ service_dir=dict(type='str', default='/var/service'),
+ service_src=dict(type='str', default='/etc/sv'),
+ ),
+ supports_check_mode=True,
+ )
+
+ module.run_command_environ_update = dict(LANG='C', LC_ALL='C', LC_MESSAGES='C', LC_CTYPE='C')
+
+ state = module.params['state']
+ enabled = module.params['enabled']
+
+ sv = Sv(module)
+ changed = False
+
+ if enabled is not None and enabled != sv.enabled:
+ changed = True
+ if not module.check_mode:
+ try:
+ if enabled:
+ sv.enable()
+ else:
+ sv.disable()
+ except (OSError, IOError) as e:
+ module.fail_json(msg="Could not change service link: %s" % to_native(e))
+
+ if state is not None and state != sv.state:
+ changed = True
+ if not module.check_mode:
+ getattr(sv, state)()
+
+ module.exit_json(changed=changed, sv=sv.report())
+
+
+if __name__ == '__main__':
+ main()