Adding monit modules to start/stop/monitor/unmonitor process via monit
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Darryl Stoflet
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1 changed files with 146 additions and 0 deletions
146
monitoring/monit
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monitoring/monit
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#!/usr/bin/python
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# -*- coding: utf-8 -*-
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# (c) 2013, Darryl Stoflet <stoflet@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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#
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DOCUMENTATION = '''
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---
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module: monit
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short_description: Manage the state of a program monitored via Monit
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description:
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- Manage the state of a program monitored via I(Monit)
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version_added: "1.2"
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options:
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name:
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description:
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- The name of the I(monit) program/process to manage
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required: true
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default: null
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state:
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description:
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- The state of service
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required: true
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default: null
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choices: [ "present", "started", "stopped", "restarted", "monitored", "unmonitored", "reloaded" ]
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examples:
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- code: "monit: name=httpd state=started"
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description: Manage the state of program I(httpd) to be in I(started) state.
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requirements: [ ]
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author: Darryl Stoflet
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'''
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def main():
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arg_spec = dict(
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name=dict(required=True),
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state=dict(required=True, choices=['present', 'started', 'restarted', 'stopped', 'monitored', 'unmonitored', 'reloaded'])
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)
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module = AnsibleModule(argument_spec=arg_spec, supports_check_mode=True)
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name = module.params['name']
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state = module.params['state']
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MONIT = module.get_bin_path('monit', True)
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if state == 'reloaded':
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if module.check_mode:
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module.exit_json(changed=True)
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rc, out, err = module.run_command('%s reload' % MONIT)
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module.exit_json(changed=True, name=name, state=state)
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rc, out, err = module.run_command('%s summary | grep "Process \'%s\'"' % (MONIT, name))
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present = name in out
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if not present and not state == 'present':
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module.fail_json(msg='%s process not presently configured with monit' % name, name=name, state=state)
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if state == 'present':
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if not present:
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if module.check_mode:
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module.exit_json(changed=True)
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module.run_command('%s reload' % MONIT, check_rc=True)
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rc, out, err = module.run_command('%s summary | grep %s' % (MONIT, name))
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if name in out:
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module.exit_json(changed=True, name=name, state=state)
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else:
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module.fail_json(msg=out, name=name, state=state)
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module.exit_json(changed=False, name=name, state=state)
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rc, out, err = module.run_command('%s summary | grep %s' % (MONIT, name))
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running = 'Running' in out
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if running and (state == 'started' or state == 'monitored'):
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module.exit_json(changed=False, name=name, state=state)
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if running and state == 'monitored':
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module.exit_json(changed=False, name=name, state=state)
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if running and state == 'stopped':
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if module.check_mode:
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module.exit_json(changed=True)
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module.run_command('%s stop %s' % (MONIT, name))
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rc, out, err = module.run_command('%s summary | grep %s' % (MONIT, name))
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if 'Not monitored' in out or 'stop pending' in out:
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module.exit_json(changed=True, name=name, state=state)
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module.fail_json(msg=out)
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if running and state == 'unmonitored':
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if module.check_mode:
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module.exit_json(changed=True)
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module.run_command('%s unmonitor %s' % (MONIT, name))
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rc, out, err = module.run_command('%s summary | grep %s' % (MONIT, name))
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if 'Not monitored' in out:
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module.exit_json(changed=True, name=name, state=state)
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module.fail_json(msg=out)
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elif state == 'restarted':
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if module.check_mode:
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module.exit_json(changed=True)
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module.run_command('%s stop %s' % (MONIT, name))
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rc, out, err = module.run_command('%s start %s' % (MONIT, name))
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if 'Initializing' in out:
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module.exit_json(changed=True, name=name, state=state)
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module.fail_json(msg=out)
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elif not running and state == 'started':
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if module.check_mode:
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module.exit_json(changed=True)
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module.run_command('%s start %s' % (MONIT, name))
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rc, out, err = module.run_command('%s summary | grep %s' % (MONIT, name))
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if 'Initializing' in out or 'start pending' in out:
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module.exit_json(changed=True, name=name, state=state)
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module.fail_json(msg=out)
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elif not running and state == 'monitored':
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if module.check_mode:
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module.exit_json(changed=True)
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module.run_command('%s monitor %s' % (MONIT, name))
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rc, out, err = module.run_command('%s summary | grep %s' % (MONIT, name))
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if 'Initializing' in out or 'start pending' in out:
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module.exit_json(changed=True, name=name, state=state)
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module.fail_json(msg=out)
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module.exit_json(changed=False, name=name, state=state)
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# this is magic, see lib/ansible/module_common.py
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#<<INCLUDE_ANSIBLE_MODULE_COMMON>>
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main()
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