1303 lines
49 KiB
Python
1303 lines
49 KiB
Python
#!/usr/bin/python
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# -*- coding: utf-8 -*-
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# (c) 2012, Michael DeHaan <michael.dehaan@gmail.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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DOCUMENTATION = '''
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---
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module: service
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author: Michael DeHaan
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version_added: "0.1"
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short_description: Manage services.
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description:
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- Controls services on remote hosts.
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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.
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state:
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required: false
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choices: [ started, stopped, restarted, reloaded ]
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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. C(reloaded) will always reload. B(At least one of state
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and enabled are required.)
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sleep:
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required: false
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version_added: "1.3"
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description:
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- If the service is being C(restarted) then sleep this many seconds
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between the stop and start command. This helps to workaround badly
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behaving init scripts that exit immediately after signaling a process
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to stop.
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pattern:
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required: false
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version_added: "0.7"
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description:
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- If the service does not respond to the status command, name a
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substring to look for as would be found in the output of the I(ps)
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command as a stand-in for a status result. If the string is found,
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the service will be assumed to be running.
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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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- Whether the service should start on boot. B(At least one of state and
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enabled are required.)
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runlevel:
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required: false
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default: 'default'
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description:
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- "For OpenRC init scripts (ex: Gentoo) only. The runlevel that this service belongs to."
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arguments:
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description:
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- Additional arguments provided on the command line
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aliases: [ 'args' ]
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'''
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EXAMPLES = '''
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# Example action to start service httpd, if not running
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- service: name=httpd state=started
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# Example action to stop service httpd, if running
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- service: name=httpd state=stopped
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# Example action to restart service httpd, in all cases
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- service: name=httpd state=restarted
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# Example action to reload service httpd, in all cases
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- service: name=httpd state=reloaded
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# Example action to enable service httpd, and not touch the running state
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- service: name=httpd enabled=yes
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# Example action to start service foo, based on running process /usr/bin/foo
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- service: name=foo pattern=/usr/bin/foo state=started
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# Example action to restart network service for interface eth0
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- service: name=network state=restarted args=eth0
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'''
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import platform
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import os
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import re
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import tempfile
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import shlex
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import select
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import time
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import string
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from distutils.version import LooseVersion
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class Service(object):
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"""
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This is the generic Service manipulation class that is subclassed
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based on platform.
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A subclass should override the following action methods:-
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- get_service_tools
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- service_enable
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- get_service_status
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- service_control
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All subclasses MUST define platform and distribution (which may be None).
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"""
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platform = 'Generic'
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distribution = None
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def __new__(cls, *args, **kwargs):
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return load_platform_subclass(Service, args, kwargs)
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def __init__(self, module):
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self.module = module
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self.name = module.params['name']
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self.state = module.params['state']
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self.sleep = module.params['sleep']
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self.pattern = module.params['pattern']
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self.enable = module.params['enabled']
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self.runlevel = module.params['runlevel']
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self.changed = False
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self.running = None
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self.crashed = None
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self.action = None
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self.svc_cmd = None
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self.svc_initscript = None
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self.svc_initctl = None
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self.enable_cmd = None
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self.arguments = module.params.get('arguments', '')
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self.rcconf_file = None
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self.rcconf_key = None
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self.rcconf_value = None
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self.svc_change = False
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# select whether we dump additional debug info through syslog
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self.syslogging = False
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# ===========================================
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# Platform specific methods (must be replaced by subclass).
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def get_service_tools(self):
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self.module.fail_json(msg="get_service_tools not implemented on target platform")
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def service_enable(self):
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self.module.fail_json(msg="service_enable not implemented on target platform")
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def get_service_status(self):
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self.module.fail_json(msg="get_service_status not implemented on target platform")
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def service_control(self):
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self.module.fail_json(msg="service_control not implemented on target platform")
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# ===========================================
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# Generic methods that should be used on all platforms.
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def execute_command(self, cmd, daemonize=False):
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if self.syslogging:
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syslog.openlog('ansible-%s' % os.path.basename(__file__))
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syslog.syslog(syslog.LOG_NOTICE, 'Command %s, daemonize %r' % (cmd, daemonize))
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# Most things don't need to be daemonized
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if not daemonize:
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return self.module.run_command(cmd)
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# This is complex because daemonization is hard for people.
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# What we do is daemonize a part of this module, the daemon runs the
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# command, picks up the return code and output, and returns it to the
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# main process.
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pipe = os.pipe()
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pid = os.fork()
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if pid == 0:
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os.close(pipe[0])
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# Set stdin/stdout/stderr to /dev/null
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fd = os.open(os.devnull, os.O_RDWR)
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if fd != 0:
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os.dup2(fd, 0)
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if fd != 1:
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os.dup2(fd, 1)
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if fd != 2:
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os.dup2(fd, 2)
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if fd not in (0, 1, 2):
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os.close(fd)
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# Make us a daemon. Yes, that's all it takes.
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pid = os.fork()
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if pid > 0:
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os._exit(0)
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os.setsid()
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os.chdir("/")
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pid = os.fork()
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if pid > 0:
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os._exit(0)
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# Start the command
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if isinstance(cmd, basestring):
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cmd = shlex.split(cmd)
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p = subprocess.Popen(cmd, shell=False, stdout=subprocess.PIPE, stderr=subprocess.PIPE, preexec_fn=lambda: os.close(pipe[1]))
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stdout = ""
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stderr = ""
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fds = [p.stdout, p.stderr]
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# Wait for all output, or until the main process is dead and its output is done.
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while fds:
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rfd, wfd, efd = select.select(fds, [], fds, 1)
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if not (rfd + wfd + efd) and p.poll() is not None:
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break
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if p.stdout in rfd:
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dat = os.read(p.stdout.fileno(), 4096)
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if not dat:
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fds.remove(p.stdout)
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stdout += dat
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if p.stderr in rfd:
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dat = os.read(p.stderr.fileno(), 4096)
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if not dat:
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fds.remove(p.stderr)
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stderr += dat
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p.wait()
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# Return a JSON blob to parent
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os.write(pipe[1], json.dumps([p.returncode, stdout, stderr]))
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os.close(pipe[1])
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os._exit(0)
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elif pid == -1:
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self.module.fail_json(msg="unable to fork")
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else:
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os.close(pipe[1])
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os.waitpid(pid, 0)
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# Wait for data from daemon process and process it.
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data = ""
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while True:
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rfd, wfd, efd = select.select([pipe[0]], [], [pipe[0]])
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if pipe[0] in rfd:
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dat = os.read(pipe[0], 4096)
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if not dat:
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break
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data += dat
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return json.loads(data)
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def check_ps(self):
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# Set ps flags
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if platform.system() == 'SunOS':
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psflags = '-ef'
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else:
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psflags = 'auxww'
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# Find ps binary
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psbin = self.module.get_bin_path('ps', True)
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(rc, psout, pserr) = self.execute_command('%s %s' % (psbin, psflags))
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# If rc is 0, set running as appropriate
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if rc == 0:
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self.running = False
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lines = psout.split("\n")
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for line in lines:
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if self.pattern in line and not "pattern=" in line:
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# so as to not confuse ./hacking/test-module
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self.running = True
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break
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def check_service_changed(self):
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if self.state and self.running is None:
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self.module.fail_json(msg="failed determining service state, possible typo of service name?")
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# Find out if state has changed
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if not self.running and self.state in ["started", "running", "reloaded"]:
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self.svc_change = True
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elif self.running and self.state in ["stopped","reloaded"]:
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self.svc_change = True
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elif self.state == "restarted":
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self.svc_change = True
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if self.module.check_mode and self.svc_change:
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self.module.exit_json(changed=True, msg='service state changed')
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def modify_service_state(self):
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# Only do something if state will change
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if self.svc_change:
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# Control service
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if self.state in ['started', 'running']:
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self.action = "start"
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elif not self.running and self.state == 'reloaded':
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self.action = "start"
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elif self.state == 'stopped':
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self.action = "stop"
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elif self.state == 'reloaded':
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self.action = "reload"
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elif self.state == 'restarted':
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self.action = "restart"
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if self.module.check_mode:
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self.module.exit_json(changed=True, msg='changing service state')
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return self.service_control()
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else:
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# If nothing needs to change just say all is well
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rc = 0
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err = ''
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out = ''
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return rc, out, err
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def service_enable_rcconf(self):
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if self.rcconf_file is None or self.rcconf_key is None or self.rcconf_value is None:
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self.module.fail_json(msg="service_enable_rcconf() requires rcconf_file, rcconf_key and rcconf_value")
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self.changed = None
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entry = '%s="%s"\n' % (self.rcconf_key, self.rcconf_value)
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RCFILE = open(self.rcconf_file, "r")
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new_rc_conf = []
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# Build a list containing the possibly modified file.
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for rcline in RCFILE:
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# Parse line removing whitespaces, quotes, etc.
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rcarray = shlex.split(rcline, comments=True)
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if len(rcarray) >= 1 and '=' in rcarray[0]:
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(key, value) = rcarray[0].split("=", 1)
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if key == self.rcconf_key:
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if value.upper() == self.rcconf_value:
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# Since the proper entry already exists we can stop iterating.
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self.changed = False
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break
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else:
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# We found the key but the value is wrong, replace with new entry.
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rcline = entry
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self.changed = True
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# Add line to the list.
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new_rc_conf.append(rcline)
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# We are done with reading the current rc.conf, close it.
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RCFILE.close()
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# If we did not see any trace of our entry we need to add it.
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if self.changed is None:
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new_rc_conf.append(entry)
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self.changed = True
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if self.changed is True:
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if self.module.check_mode:
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self.module.exit_json(changed=True, msg="changing service enablement")
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# Create a temporary file next to the current rc.conf (so we stay on the same filesystem).
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# This way the replacement operation is atomic.
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rcconf_dir = os.path.dirname(self.rcconf_file)
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rcconf_base = os.path.basename(self.rcconf_file)
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(TMP_RCCONF, tmp_rcconf_file) = tempfile.mkstemp(dir=rcconf_dir, prefix="%s-" % rcconf_base)
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# Write out the contents of the list into our temporary file.
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for rcline in new_rc_conf:
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os.write(TMP_RCCONF, rcline)
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# Close temporary file.
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os.close(TMP_RCCONF)
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# Replace previous rc.conf.
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self.module.atomic_move(tmp_rcconf_file, self.rcconf_file)
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# ===========================================
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# Subclass: Linux
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class LinuxService(Service):
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"""
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This is the Linux Service manipulation class - it is currently supporting
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a mixture of binaries and init scripts for controlling services started at
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boot, as well as for controlling the current state.
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"""
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platform = 'Linux'
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distribution = None
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def get_service_tools(self):
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paths = [ '/sbin', '/usr/sbin', '/bin', '/usr/bin' ]
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binaries = [ 'service', 'chkconfig', 'update-rc.d', 'rc-service', 'rc-update', 'initctl', 'systemctl', 'start', 'stop', 'restart' ]
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initpaths = [ '/etc/init.d' ]
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location = dict()
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for binary in binaries:
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location[binary] = self.module.get_bin_path(binary)
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def check_systemd(name):
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# verify service is managed by systemd
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if not location.get('systemctl', None):
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return False
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# default to .service if the unit type is not specified
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if name.find('.') > 0:
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unit_name, unit_type = name.rsplit('.', 1)
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if unit_type not in ("service", "socket", "device", "mount", "automount",
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"swap", "target", "path", "timer", "snapshot"):
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name = "%s.service" % name
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else:
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name = "%s.service" % name
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rc, out, err = self.execute_command("%s list-unit-files" % (location['systemctl']))
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# adjust the service name to account for template service unit files
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index = name.find('@')
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if index != -1:
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template_name = name[:index+1]
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else:
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template_name = name
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self.__systemd_unit = None
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for line in out.splitlines():
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if line.startswith(template_name):
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self.__systemd_unit = name
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return True
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return False
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# Locate a tool for enable options
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if location.get('chkconfig', None) and os.path.exists("/etc/init.d/%s" % self.name):
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if check_systemd(self.name):
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# service is managed by systemd
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self.enable_cmd = location['systemctl']
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else:
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# we are using a standard SysV service
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self.enable_cmd = location['chkconfig']
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elif location.get('update-rc.d', None):
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if check_systemd(self.name):
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# service is managed by systemd
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self.enable_cmd = location['systemctl']
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elif location['initctl'] and os.path.exists("/etc/init/%s.conf" % self.name):
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# service is managed by upstart
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self.enable_cmd = location['initctl']
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elif location['update-rc.d'] and os.path.exists("/etc/init.d/%s" % self.name):
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# service is managed by with SysV init scripts, but with update-rc.d
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self.enable_cmd = location['update-rc.d']
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else:
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self.module.fail_json(msg="service not found: %s" % self.name)
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elif location.get('rc-service', None) and not location.get('systemctl', None):
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# service is managed by OpenRC
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self.svc_cmd = location['rc-service']
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self.enable_cmd = location['rc-update']
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return
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elif check_systemd(self.name):
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# service is managed by systemd
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self.enable_cmd = location['systemctl']
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elif location['initctl'] and os.path.exists("/etc/init/%s.conf" % self.name):
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# service is managed by upstart
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self.enable_cmd = location['initctl']
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# if this service is managed via upstart, get the current upstart version
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if self.enable_cmd == location['initctl']:
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# default the upstart version to something we can compare against
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self.upstart_version = LooseVersion('0.0.0')
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try:
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# set the upstart version based on the output of 'initctl version'
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version_re = re.compile(r'\(upstart (.*)\)')
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rc,stdout,stderr = self.module.run_command('initctl version')
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if rc == 0:
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res = version_re.search(stdout)
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if res:
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self.upstart_version = LooseVersion(res.groups()[0])
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except:
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# we'll use the default of 0.0.0 since we couldn't
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# detect the current upstart version above
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pass
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# Locate a tool for runtime service management (start, stop etc.)
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if location.get('service', None) and os.path.exists("/etc/init.d/%s" % self.name):
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# SysV init script
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self.svc_cmd = location['service']
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elif location.get('start', None) and os.path.exists("/etc/init/%s.conf" % self.name):
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# upstart -- rather than being managed by one command, start/stop/restart are actual commands
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self.svc_cmd = ''
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else:
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# still a SysV init script, but /sbin/service isn't installed
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for initdir in initpaths:
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initscript = "%s/%s" % (initdir,self.name)
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if os.path.isfile(initscript):
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self.svc_initscript = initscript
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# couldn't find anything yet, assume systemd
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if self.svc_cmd is None and self.svc_initscript is None:
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if location.get('systemctl'):
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self.svc_cmd = location['systemctl']
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if self.svc_cmd is None and not self.svc_initscript:
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self.module.fail_json(msg='cannot find \'service\' binary or init script for service, possible typo in service name?, aborting')
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if location.get('initctl', None):
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self.svc_initctl = location['initctl']
|
|
|
|
def get_systemd_status_dict(self):
|
|
(rc, out, err) = self.execute_command("%s show %s" % (self.enable_cmd, self.__systemd_unit,))
|
|
if rc != 0:
|
|
self.module.fail_json(msg='failure %d running systemctl show for %r: %s' % (rc, self.__systemd_unit, err))
|
|
return dict(line.split('=', 1) for line in out.splitlines())
|
|
|
|
def get_systemd_service_status(self):
|
|
d = self.get_systemd_status_dict()
|
|
if d.get('ActiveState') == 'active':
|
|
# run-once services (for which a single successful exit indicates
|
|
# that they are running as designed) should not be restarted here.
|
|
# Thus, we are not checking d['SubState'].
|
|
self.running = True
|
|
self.crashed = False
|
|
elif d.get('ActiveState') == 'failed':
|
|
self.running = False
|
|
self.crashed = True
|
|
elif d.get('ActiveState') is None:
|
|
self.module.fail_json(msg='No ActiveState value in systemctl show output for %r' % (self.__systemd_unit,))
|
|
else:
|
|
self.running = False
|
|
self.crashed = False
|
|
return self.running
|
|
|
|
def get_service_status(self):
|
|
if self.svc_cmd and self.svc_cmd.endswith('systemctl'):
|
|
return self.get_systemd_service_status()
|
|
|
|
self.action = "status"
|
|
rc, status_stdout, status_stderr = self.service_control()
|
|
|
|
# if we have decided the service is managed by upstart, we check for some additional output...
|
|
if self.svc_initctl and self.running is None:
|
|
# check the job status by upstart response
|
|
initctl_rc, initctl_status_stdout, initctl_status_stderr = self.execute_command("%s status %s" % (self.svc_initctl, self.name))
|
|
if "stop/waiting" in initctl_status_stdout:
|
|
self.running = False
|
|
elif "start/running" in initctl_status_stdout:
|
|
self.running = True
|
|
|
|
if self.svc_cmd and self.svc_cmd.endswith("rc-service") and self.running is None:
|
|
openrc_rc, openrc_status_stdout, openrc_status_stderr = self.execute_command("%s %s status" % (self.svc_cmd, self.name))
|
|
self.running = "started" in openrc_status_stdout
|
|
self.crashed = "crashed" in openrc_status_stderr
|
|
|
|
# if the job status is still not known check it by status output keywords
|
|
if self.running is None:
|
|
# first transform the status output that could irritate keyword matching
|
|
cleanout = status_stdout.lower().replace(self.name.lower(), '')
|
|
if "stop" in cleanout:
|
|
self.running = False
|
|
elif "run" in cleanout and "not" in cleanout:
|
|
self.running = False
|
|
elif "run" in cleanout and "not" not in cleanout:
|
|
self.running = True
|
|
elif "start" in cleanout and "not" not in cleanout:
|
|
self.running = True
|
|
elif 'could not access pid file' in cleanout:
|
|
self.running = False
|
|
elif 'is dead and pid file exists' in cleanout:
|
|
self.running = False
|
|
elif 'dead but subsys locked' in cleanout:
|
|
self.running = False
|
|
elif 'dead but pid file exists' in cleanout:
|
|
self.running = False
|
|
|
|
# if the job status is still not known check it by response code
|
|
# For reference, see:
|
|
# http://refspecs.linuxbase.org/LSB_4.1.0/LSB-Core-generic/LSB-Core-generic/iniscrptact.html
|
|
if self.running is None:
|
|
if rc in [1, 2, 3, 4, 69]:
|
|
self.running = False
|
|
elif rc == 0:
|
|
self.running = True
|
|
|
|
# if the job status is still not known check it by special conditions
|
|
if self.running is None:
|
|
if self.name == 'iptables' and "ACCEPT" in status_stdout:
|
|
# iptables status command output is lame
|
|
# TODO: lookup if we can use a return code for this instead?
|
|
self.running = True
|
|
|
|
return self.running
|
|
|
|
|
|
def service_enable(self):
|
|
|
|
if self.enable_cmd is None:
|
|
self.module.fail_json(msg='cannot detect command to enable service %s, typo or init system potentially unknown' % self.name)
|
|
|
|
self.changed = True
|
|
action = None
|
|
|
|
# FIXME: we use chkconfig or systemctl
|
|
# to decide whether to run the command here but need something
|
|
# similar for upstart
|
|
|
|
#
|
|
# Upstart's initctl
|
|
#
|
|
if self.enable_cmd.endswith("initctl"):
|
|
def write_to_override_file(file_name, file_contents, ):
|
|
override_file = open(file_name, 'w')
|
|
override_file.write(file_contents)
|
|
override_file.close()
|
|
|
|
initpath = '/etc/init'
|
|
if self.upstart_version >= LooseVersion('0.6.7'):
|
|
manreg = re.compile('^manual\s*$', re.M | re.I)
|
|
config_line = 'manual\n'
|
|
else:
|
|
manreg = re.compile('^start on manual\s*$', re.M | re.I)
|
|
config_line = 'start on manual\n'
|
|
conf_file_name = "%s/%s.conf" % (initpath, self.name)
|
|
override_file_name = "%s/%s.override" % (initpath, self.name)
|
|
|
|
# Check to see if files contain the manual line in .conf and fail if True
|
|
if manreg.search(open(conf_file_name).read()):
|
|
self.module.fail_json(msg="manual stanza not supported in a .conf file")
|
|
|
|
self.changed = False
|
|
if os.path.exists(override_file_name):
|
|
override_file_contents = open(override_file_name).read()
|
|
# Remove manual stanza if present and service enabled
|
|
if self.enable and manreg.search(override_file_contents):
|
|
self.changed = True
|
|
override_state = manreg.sub('', override_file_contents)
|
|
# Add manual stanza if not present and service disabled
|
|
elif not (self.enable) and not (manreg.search(override_file_contents)):
|
|
self.changed = True
|
|
override_state = '\n'.join((override_file_contents, config_line))
|
|
# service already in desired state
|
|
else:
|
|
pass
|
|
# Add file with manual stanza if service disabled
|
|
elif not (self.enable):
|
|
self.changed = True
|
|
override_state = config_line
|
|
else:
|
|
# service already in desired state
|
|
pass
|
|
|
|
if self.module.check_mode:
|
|
self.module.exit_json(changed=self.changed)
|
|
|
|
# The initctl method of enabling and disabling services is much
|
|
# different than for the other service methods. So actually
|
|
# committing the change is done in this conditional and then we
|
|
# skip the boilerplate at the bottom of the method
|
|
if self.changed:
|
|
write_to_override_file(override_file_name, override_state)
|
|
return
|
|
|
|
#
|
|
# SysV's chkconfig
|
|
#
|
|
if self.enable_cmd.endswith("chkconfig"):
|
|
if self.enable:
|
|
action = 'on'
|
|
else:
|
|
action = 'off'
|
|
|
|
(rc, out, err) = self.execute_command("%s --list %s" % (self.enable_cmd, self.name))
|
|
if 'chkconfig --add %s' % self.name in err:
|
|
self.execute_command("%s --add %s" % (self.enable_cmd, self.name))
|
|
(rc, out, err) = self.execute_command("%s --list %s" % (self.enable_cmd, self.name))
|
|
if not self.name in out:
|
|
self.module.fail_json(msg="service %s does not support chkconfig" % self.name)
|
|
state = out.split()[-1]
|
|
|
|
# Check if we're already in the correct state
|
|
if "3:%s" % action in out and "5:%s" % action in out:
|
|
return
|
|
|
|
#
|
|
# Systemd's systemctl
|
|
#
|
|
if self.enable_cmd.endswith("systemctl"):
|
|
if self.enable:
|
|
action = 'enable'
|
|
else:
|
|
action = 'disable'
|
|
|
|
# Check if we're already in the correct state
|
|
d = self.get_systemd_status_dict()
|
|
if "UnitFileState" in d:
|
|
if self.enable and d["UnitFileState"] == "enabled":
|
|
self.changed = False
|
|
elif not self.enable and d["UnitFileState"] == "disabled":
|
|
self.changed = False
|
|
elif not self.enable:
|
|
self.changed = False
|
|
|
|
if not self.changed:
|
|
return
|
|
|
|
#
|
|
# OpenRC's rc-update
|
|
#
|
|
if self.enable_cmd.endswith("rc-update"):
|
|
if self.enable:
|
|
action = 'add'
|
|
else:
|
|
action = 'delete'
|
|
|
|
(rc, out, err) = self.execute_command("%s show" % self.enable_cmd)
|
|
for line in out.splitlines():
|
|
service_name, runlevels = line.split('|')
|
|
service_name = service_name.strip()
|
|
if service_name != self.name:
|
|
continue
|
|
runlevels = re.split(r'\s+', runlevels)
|
|
# service already enabled for the runlevel
|
|
if self.enable and self.runlevel in runlevels:
|
|
self.changed = False
|
|
# service already disabled for the runlevel
|
|
elif not self.enable and self.runlevel not in runlevels:
|
|
self.changed = False
|
|
break
|
|
else:
|
|
# service already disabled altogether
|
|
if not self.enable:
|
|
self.changed = False
|
|
|
|
if not self.changed:
|
|
return
|
|
|
|
if self.enable_cmd.endswith("update-rc.d"):
|
|
if self.enable:
|
|
action = 'enable'
|
|
else:
|
|
action = 'disable'
|
|
|
|
if self.enable:
|
|
# make sure the init.d symlinks are created
|
|
# otherwise enable might not work
|
|
(rc, out, err) = self.execute_command("%s %s defaults" \
|
|
% (self.enable_cmd, self.name))
|
|
if rc != 0:
|
|
return (rc, out, err)
|
|
|
|
(rc, out, err) = self.execute_command("%s -n %s %s" \
|
|
% (self.enable_cmd, self.name, action))
|
|
self.changed = False
|
|
for line in out.splitlines():
|
|
if line.startswith('rename'):
|
|
self.changed = True
|
|
break
|
|
elif self.enable and 'do not exist' in line:
|
|
self.changed = True
|
|
break
|
|
elif not self.enable and 'already exist' in line:
|
|
self.changed = True
|
|
break
|
|
|
|
# Debian compatibility
|
|
for line in err.splitlines():
|
|
if self.enable and 'no runlevel symlinks to modify' in line:
|
|
self.changed = True
|
|
break
|
|
|
|
if not self.changed:
|
|
return
|
|
|
|
# If we've gotten to the end, the service needs to be updated
|
|
self.changed = True
|
|
|
|
# we change argument order depending on real binary used:
|
|
# rc-update and systemctl need the argument order reversed
|
|
|
|
if self.enable_cmd.endswith("rc-update"):
|
|
args = (self.enable_cmd, action, self.name + " " + self.runlevel)
|
|
elif self.enable_cmd.endswith("systemctl"):
|
|
args = (self.enable_cmd, action, self.__systemd_unit)
|
|
else:
|
|
args = (self.enable_cmd, self.name, action)
|
|
|
|
if self.module.check_mode:
|
|
self.module.exit_json(changed=self.changed)
|
|
|
|
self.module.fail_json(msg=self.execute_command("%s %s %s" % args))
|
|
return self.execute_command("%s %s %s" % args)
|
|
|
|
|
|
def service_control(self):
|
|
|
|
# Decide what command to run
|
|
svc_cmd = ''
|
|
arguments = self.arguments
|
|
if self.svc_cmd:
|
|
if not self.svc_cmd.endswith("systemctl"):
|
|
# SysV and OpenRC take the form <cmd> <name> <action>
|
|
svc_cmd = "%s %s" % (self.svc_cmd, self.name)
|
|
else:
|
|
# systemd commands take the form <cmd> <action> <name>
|
|
svc_cmd = self.svc_cmd
|
|
arguments = "%s %s" % (self.__systemd_unit, arguments)
|
|
elif self.svc_initscript:
|
|
# upstart
|
|
svc_cmd = "%s" % self.svc_initscript
|
|
|
|
# In OpenRC, if a service crashed, we need to reset its status to
|
|
# stopped with the zap command, before we can start it back.
|
|
if self.svc_cmd and self.svc_cmd.endswith('rc-service') and self.action == 'start' and self.crashed:
|
|
self.execute_command("%s zap" % svc_cmd, daemonize=True)
|
|
|
|
if self.action is not "restart":
|
|
if svc_cmd != '':
|
|
# upstart or systemd or OpenRC
|
|
rc_state, stdout, stderr = self.execute_command("%s %s %s" % (svc_cmd, self.action, arguments), daemonize=True)
|
|
else:
|
|
# SysV
|
|
rc_state, stdout, stderr = self.execute_command("%s %s %s" % (self.action, self.name, arguments), daemonize=True)
|
|
elif self.svc_cmd and self.svc_cmd.endswith('rc-service'):
|
|
# All services in OpenRC support restart.
|
|
rc_state, stdout, stderr = self.execute_command("%s %s %s" % (svc_cmd, self.action, arguments), daemonize=True)
|
|
else:
|
|
# In other systems, not all services support restart. Do it the hard way.
|
|
if svc_cmd != '':
|
|
# upstart or systemd
|
|
rc1, stdout1, stderr1 = self.execute_command("%s %s %s" % (svc_cmd, 'stop', arguments), daemonize=True)
|
|
else:
|
|
# SysV
|
|
rc1, stdout1, stderr1 = self.execute_command("%s %s %s" % ('stop', self.name, arguments), daemonize=True)
|
|
|
|
if self.sleep:
|
|
time.sleep(self.sleep)
|
|
|
|
if svc_cmd != '':
|
|
# upstart or systemd
|
|
rc2, stdout2, stderr2 = self.execute_command("%s %s %s" % (svc_cmd, 'start', arguments), daemonize=True)
|
|
else:
|
|
# SysV
|
|
rc2, stdout2, stderr2 = self.execute_command("%s %s %s" % ('start', self.name, arguments), daemonize=True)
|
|
|
|
# merge return information
|
|
if rc1 != 0 and rc2 == 0:
|
|
rc_state = rc2
|
|
stdout = stdout2
|
|
stderr = stderr2
|
|
else:
|
|
rc_state = rc1 + rc2
|
|
stdout = stdout1 + stdout2
|
|
stderr = stderr1 + stderr2
|
|
|
|
return(rc_state, stdout, stderr)
|
|
|
|
# ===========================================
|
|
# Subclass: FreeBSD
|
|
|
|
class FreeBsdService(Service):
|
|
"""
|
|
This is the FreeBSD Service manipulation class - it uses the /etc/rc.conf
|
|
file for controlling services started at boot and the 'service' binary to
|
|
check status and perform direct service manipulation.
|
|
"""
|
|
|
|
platform = 'FreeBSD'
|
|
distribution = None
|
|
|
|
def get_service_tools(self):
|
|
self.svc_cmd = self.module.get_bin_path('service', True)
|
|
|
|
if not self.svc_cmd:
|
|
self.module.fail_json(msg='unable to find service binary')
|
|
|
|
def get_service_status(self):
|
|
rc, stdout, stderr = self.execute_command("%s %s %s %s" % (self.svc_cmd, self.name, 'onestatus', self.arguments))
|
|
if rc == 1:
|
|
self.running = False
|
|
elif rc == 0:
|
|
self.running = True
|
|
|
|
def service_enable(self):
|
|
if self.enable:
|
|
self.rcconf_value = "YES"
|
|
else:
|
|
self.rcconf_value = "NO"
|
|
|
|
rcfiles = [ '/etc/rc.conf','/etc/rc.conf.local', '/usr/local/etc/rc.conf' ]
|
|
for rcfile in rcfiles:
|
|
if os.path.isfile(rcfile):
|
|
self.rcconf_file = rcfile
|
|
|
|
rc, stdout, stderr = self.execute_command("%s %s %s %s" % (self.svc_cmd, self.name, 'rcvar', self.arguments))
|
|
cmd = "%s %s %s %s" % (self.svc_cmd, self.name, 'rcvar', self.arguments)
|
|
rcvars = shlex.split(stdout, comments=True)
|
|
|
|
if not rcvars:
|
|
self.module.fail_json(msg="unable to determine rcvar", stdout=stdout, stderr=stderr)
|
|
|
|
# In rare cases, i.e. sendmail, rcvar can return several key=value pairs
|
|
# Usually there is just one, however. In other rare cases, i.e. uwsgi,
|
|
# rcvar can return extra uncommented data that is not at all related to
|
|
# the rcvar. We will just take the first key=value pair we come across
|
|
# and hope for the best.
|
|
for rcvar in rcvars:
|
|
if '=' in rcvar:
|
|
self.rcconf_key = rcvar.split('=')[0]
|
|
break
|
|
|
|
if self.rcconf_key is None:
|
|
self.module.fail_json(msg="unable to determine rcvar", stdout=stdout, stderr=stderr)
|
|
|
|
return self.service_enable_rcconf()
|
|
|
|
def service_control(self):
|
|
|
|
if self.action is "start":
|
|
self.action = "onestart"
|
|
if self.action is "stop":
|
|
self.action = "onestop"
|
|
if self.action is "reload":
|
|
self.action = "onereload"
|
|
|
|
return self.execute_command("%s %s %s %s" % (self.svc_cmd, self.name, self.action, self.arguments))
|
|
|
|
# ===========================================
|
|
# Subclass: OpenBSD
|
|
|
|
class OpenBsdService(Service):
|
|
"""
|
|
This is the OpenBSD Service manipulation class - it uses /etc/rc.d for
|
|
service control. Enabling a service is currently not supported because the
|
|
<service>_flags variable is not boolean, you should supply a rc.conf.local
|
|
file in some other way.
|
|
"""
|
|
|
|
platform = 'OpenBSD'
|
|
distribution = None
|
|
|
|
def get_service_tools(self):
|
|
rcdir = '/etc/rc.d'
|
|
|
|
rc_script = "%s/%s" % (rcdir, self.name)
|
|
if os.path.isfile(rc_script):
|
|
self.svc_cmd = rc_script
|
|
|
|
if not self.svc_cmd:
|
|
self.module.fail_json(msg='unable to find rc.d script')
|
|
|
|
def get_service_status(self):
|
|
rc, stdout, stderr = self.execute_command("%s %s" % (self.svc_cmd, 'check'))
|
|
if rc == 1:
|
|
self.running = False
|
|
elif rc == 0:
|
|
self.running = True
|
|
|
|
def service_control(self):
|
|
return self.execute_command("%s %s" % (self.svc_cmd, self.action))
|
|
|
|
# ===========================================
|
|
# Subclass: NetBSD
|
|
|
|
class NetBsdService(Service):
|
|
"""
|
|
This is the NetBSD Service manipulation class - it uses the /etc/rc.conf
|
|
file for controlling services started at boot, check status and perform
|
|
direct service manipulation. Init scripts in /etc/rcd are used for
|
|
controlling services (start/stop) as well as for controlling the current
|
|
state.
|
|
"""
|
|
|
|
platform = 'NetBSD'
|
|
distribution = None
|
|
|
|
def get_service_tools(self):
|
|
initpaths = [ '/etc/rc.d' ] # better: $rc_directories - how to get in here? Run: sh -c '. /etc/rc.conf ; echo $rc_directories'
|
|
|
|
for initdir in initpaths:
|
|
initscript = "%s/%s" % (initdir,self.name)
|
|
if os.path.isfile(initscript):
|
|
self.svc_initscript = initscript
|
|
|
|
if not self.svc_initscript:
|
|
self.module.fail_json(msg='unable to find rc.d script')
|
|
|
|
def service_enable(self):
|
|
if self.enable:
|
|
self.rcconf_value = "YES"
|
|
else:
|
|
self.rcconf_value = "NO"
|
|
|
|
rcfiles = [ '/etc/rc.conf' ] # Overkill?
|
|
for rcfile in rcfiles:
|
|
if os.path.isfile(rcfile):
|
|
self.rcconf_file = rcfile
|
|
|
|
self.rcconf_key = "%s" % string.replace(self.name,"-","_")
|
|
|
|
return self.service_enable_rcconf()
|
|
|
|
def get_service_status(self):
|
|
self.svc_cmd = "%s" % self.svc_initscript
|
|
rc, stdout, stderr = self.execute_command("%s %s" % (self.svc_cmd, 'onestatus'))
|
|
if rc == 1:
|
|
self.running = False
|
|
elif rc == 0:
|
|
self.running = True
|
|
|
|
def service_control(self):
|
|
if self.action is "start":
|
|
self.action = "onestart"
|
|
if self.action is "stop":
|
|
self.action = "onestop"
|
|
|
|
self.svc_cmd = "%s" % self.svc_initscript
|
|
return self.execute_command("%s %s" % (self.svc_cmd, self.action), daemonize=True)
|
|
|
|
# ===========================================
|
|
# Subclass: SunOS
|
|
class SunOSService(Service):
|
|
"""
|
|
This is the SunOS Service manipulation class - it uses the svcadm
|
|
command for controlling services, and svcs command for checking status.
|
|
It also tries to be smart about taking the service out of maintenance
|
|
state if necessary.
|
|
"""
|
|
platform = 'SunOS'
|
|
distribution = None
|
|
|
|
def get_service_tools(self):
|
|
self.svcs_cmd = self.module.get_bin_path('svcs', True)
|
|
|
|
if not self.svcs_cmd:
|
|
self.module.fail_json(msg='unable to find svcs binary')
|
|
|
|
self.svcadm_cmd = self.module.get_bin_path('svcadm', True)
|
|
|
|
if not self.svcadm_cmd:
|
|
self.module.fail_json(msg='unable to find svcadm binary')
|
|
|
|
def get_service_status(self):
|
|
status = self.get_sunos_svcs_status()
|
|
# Only 'online' is considered properly running. Everything else is off
|
|
# or has some sort of problem.
|
|
if status == 'online':
|
|
self.running = True
|
|
else:
|
|
self.running = False
|
|
|
|
def get_sunos_svcs_status(self):
|
|
rc, stdout, stderr = self.execute_command("%s %s" % (self.svcs_cmd, self.name))
|
|
if rc == 1:
|
|
if stderr:
|
|
self.module.fail_json(msg=stderr)
|
|
else:
|
|
self.module.fail_json(msg=stdout)
|
|
|
|
lines = stdout.rstrip("\n").split("\n")
|
|
status = lines[-1].split(" ")[0]
|
|
# status is one of: online, offline, degraded, disabled, maintenance, uninitialized
|
|
# see man svcs(1)
|
|
return status
|
|
|
|
def service_enable(self):
|
|
# Get current service enablement status
|
|
rc, stdout, stderr = self.execute_command("%s -l %s" % (self.svcs_cmd, self.name))
|
|
|
|
if rc != 0:
|
|
if stderr:
|
|
self.module.fail_json(msg=stderr)
|
|
else:
|
|
self.module.fail_json(msg=stdout)
|
|
|
|
enabled = False
|
|
temporary = False
|
|
|
|
# look for enabled line, which could be one of:
|
|
# enabled true (temporary)
|
|
# enabled false (temporary)
|
|
# enabled true
|
|
# enabled false
|
|
for line in stdout.split("\n"):
|
|
if line.startswith("enabled"):
|
|
if "true" in line:
|
|
enabled = True
|
|
if "temporary" in line:
|
|
temporary = True
|
|
|
|
startup_enabled = (enabled and not temporary) or (not enabled and temporary)
|
|
|
|
if self.enable and startup_enabled:
|
|
return
|
|
elif (not self.enable) and (not startup_enabled):
|
|
return
|
|
|
|
# Mark service as started or stopped (this will have the side effect of
|
|
# actually stopping or starting the service)
|
|
if self.enable:
|
|
subcmd = "enable -rs"
|
|
else:
|
|
subcmd = "disable -s"
|
|
|
|
rc, stdout, stderr = self.execute_command("%s %s %s" % (self.svcadm_cmd, subcmd, self.name))
|
|
|
|
if rc != 0:
|
|
if stderr:
|
|
self.module.fail_json(msg=stderr)
|
|
else:
|
|
self.module.fail_json(msg=stdout)
|
|
|
|
self.changed = True
|
|
|
|
|
|
def service_control(self):
|
|
status = self.get_sunos_svcs_status()
|
|
|
|
# if starting or reloading, clear maintenace states
|
|
if self.action in ['start', 'reload', 'restart'] and status in ['maintenance', 'degraded']:
|
|
rc, stdout, stderr = self.execute_command("%s clear %s" % (self.svcadm_cmd, self.name))
|
|
if rc != 0:
|
|
return rc, stdout, stderr
|
|
status = self.get_sunos_svcs_status()
|
|
|
|
if status in ['maintenance', 'degraded']:
|
|
self.module.fail_json(msg="Failed to bring service out of %s status." % status)
|
|
|
|
if self.action == 'start':
|
|
subcmd = "enable -rst"
|
|
elif self.action == 'stop':
|
|
subcmd = "disable -st"
|
|
elif self.action == 'reload':
|
|
subcmd = "refresh"
|
|
elif self.action == 'restart' and status == 'online':
|
|
subcmd = "restart"
|
|
elif self.action == 'restart' and status != 'online':
|
|
subcmd = "enable -rst"
|
|
|
|
return self.execute_command("%s %s %s" % (self.svcadm_cmd, subcmd, self.name))
|
|
|
|
# ===========================================
|
|
# Subclass: AIX
|
|
|
|
class AIX(Service):
|
|
"""
|
|
This is the AIX Service (SRC) manipulation class - it uses lssrc, startsrc, stopsrc
|
|
and refresh for service control. Enabling a service is currently not supported.
|
|
Would require to add an entry in the /etc/inittab file (mkitab, chitab and rmitab
|
|
commands)
|
|
"""
|
|
|
|
platform = 'AIX'
|
|
distribution = None
|
|
|
|
def get_service_tools(self):
|
|
self.lssrc_cmd = self.module.get_bin_path('lssrc', True)
|
|
|
|
if not self.lssrc_cmd:
|
|
self.module.fail_json(msg='unable to find lssrc binary')
|
|
|
|
self.startsrc_cmd = self.module.get_bin_path('startsrc', True)
|
|
|
|
if not self.startsrc_cmd:
|
|
self.module.fail_json(msg='unable to find startsrc binary')
|
|
|
|
self.stopsrc_cmd = self.module.get_bin_path('stopsrc', True)
|
|
|
|
if not self.stopsrc_cmd:
|
|
self.module.fail_json(msg='unable to find stopsrc binary')
|
|
|
|
self.refresh_cmd = self.module.get_bin_path('refresh', True)
|
|
|
|
if not self.refresh_cmd:
|
|
self.module.fail_json(msg='unable to find refresh binary')
|
|
|
|
|
|
def get_service_status(self):
|
|
status = self.get_aix_src_status()
|
|
# Only 'active' is considered properly running. Everything else is off
|
|
# or has some sort of problem.
|
|
if status == 'active':
|
|
self.running = True
|
|
else:
|
|
self.running = False
|
|
|
|
def get_aix_src_status(self):
|
|
rc, stdout, stderr = self.execute_command("%s -s %s" % (self.lssrc_cmd, self.name))
|
|
if rc == 1:
|
|
if stderr:
|
|
self.module.fail_json(msg=stderr)
|
|
else:
|
|
self.module.fail_json(msg=stdout)
|
|
|
|
lines = stdout.rstrip("\n").split("\n")
|
|
status = lines[-1].split(" ")[-1]
|
|
# status is one of: active, inoperative
|
|
return status
|
|
|
|
def service_control(self):
|
|
if self.action == 'start':
|
|
srccmd = self.startsrc_cmd
|
|
elif self.action == 'stop':
|
|
srccmd = self.stopsrc_cmd
|
|
elif self.action == 'reload':
|
|
srccmd = self.refresh_cmd
|
|
elif self.action == 'restart':
|
|
self.execute_command("%s -s %s" % (self.stopsrc_cmd, self.name))
|
|
srccmd = self.startsrc_cmd
|
|
|
|
if self.arguments and self.action == 'start':
|
|
return self.execute_command("%s -a \"%s\" -s %s" % (srccmd, self.arguments, self.name))
|
|
else:
|
|
return self.execute_command("%s -s %s" % (srccmd, self.name))
|
|
|
|
|
|
# ===========================================
|
|
# Main control flow
|
|
|
|
def main():
|
|
module = AnsibleModule(
|
|
argument_spec = dict(
|
|
name = dict(required=True),
|
|
state = dict(choices=['running', 'started', 'stopped', 'restarted', 'reloaded']),
|
|
sleep = dict(required=False, type='int', default=None),
|
|
pattern = dict(required=False, default=None),
|
|
enabled = dict(type='bool'),
|
|
runlevel = dict(required=False, default='default'),
|
|
arguments = dict(aliases=['args'], default=''),
|
|
),
|
|
supports_check_mode=True
|
|
)
|
|
if module.params['state'] is None and module.params['enabled'] is None:
|
|
module.fail_json(msg="Neither 'state' nor 'enabled' set")
|
|
|
|
service = Service(module)
|
|
|
|
if service.syslogging:
|
|
syslog.openlog('ansible-%s' % os.path.basename(__file__))
|
|
syslog.syslog(syslog.LOG_NOTICE, 'Service instantiated - platform %s' % service.platform)
|
|
if service.distribution:
|
|
syslog.syslog(syslog.LOG_NOTICE, 'Service instantiated - distribution %s' % service.distribution)
|
|
|
|
rc = 0
|
|
out = ''
|
|
err = ''
|
|
result = {}
|
|
result['name'] = service.name
|
|
|
|
# Find service management tools
|
|
service.get_service_tools()
|
|
|
|
# Enable/disable service startup at boot if requested
|
|
if service.module.params['enabled'] is not None:
|
|
# FIXME: ideally this should detect if we need to toggle the enablement state, though
|
|
# it's unlikely the changed handler would need to fire in this case so it's a minor thing.
|
|
service.service_enable()
|
|
result['enabled'] = service.enable
|
|
|
|
if module.params['state'] is None:
|
|
# Not changing the running state, so bail out now.
|
|
result['changed'] = service.changed
|
|
module.exit_json(**result)
|
|
|
|
result['state'] = service.state
|
|
|
|
# Collect service status
|
|
if service.pattern:
|
|
service.check_ps()
|
|
else:
|
|
service.get_service_status()
|
|
|
|
# Calculate if request will change service state
|
|
service.check_service_changed()
|
|
|
|
# Modify service state if necessary
|
|
(rc, out, err) = service.modify_service_state()
|
|
|
|
if rc != 0:
|
|
if err and "is already" in err:
|
|
# upstart got confused, one such possibility is MySQL on Ubuntu 12.04
|
|
# where status may report it has no start/stop links and we could
|
|
# not get accurate status
|
|
pass
|
|
else:
|
|
if err:
|
|
module.fail_json(msg=err)
|
|
else:
|
|
module.fail_json(msg=out)
|
|
|
|
result['changed'] = service.changed | service.svc_change
|
|
if service.module.params['enabled'] is not None:
|
|
result['enabled'] = service.module.params['enabled']
|
|
|
|
if not service.module.params['state']:
|
|
status = service.get_service_status()
|
|
if status is None:
|
|
result['state'] = 'absent'
|
|
elif status is False:
|
|
result['state'] = 'started'
|
|
else:
|
|
result['state'] = 'stopped'
|
|
else:
|
|
# as we may have just bounced the service the service command may not
|
|
# report accurate state at this moment so just show what we ran
|
|
if service.module.params['state'] in ['started','restarted','running','reloaded']:
|
|
result['state'] = 'started'
|
|
else:
|
|
result['state'] = 'stopped'
|
|
|
|
module.exit_json(**result)
|
|
|
|
from ansible.module_utils.basic import *
|
|
main()
|