nosh – Manage services with nosh

New in version 2.5.

Synopsis

  • Control running and enabled state for system-wide or user services.
  • BSD and Linux systems are supported.

Requirements

The below requirements are needed on the host that executes this module.

  • A system with an active nosh service manager, see Notes for further information.

Parameters

Parameter Choices/Defaults Comments
enabled
boolean
    Choices:
  • no
  • yes
Enable or disable the service, independently of *.preset file preference or running state. Mutually exclusive with preset. Will take effect prior to state=reset.
name
- / required
Name of the service to manage.
preset
boolean
    Choices:
  • no
  • yes
Enable or disable the service according to local preferences in *.preset files. Mutually exclusive with enabled. Only has an effect if set to true. Will take effect prior to state=reset.
state
-
    Choices:
  • started
  • stopped
  • reset
  • restarted
  • reloaded
started/stopped are idempotent actions that will not run commands unless necessary. restarted will always bounce the service. reloaded will send a SIGHUP or start the service. reset will start or stop the service according to whether it is enabled or not.
user
boolean
    Choices:
  • no ←
  • yes
Run system-control talking to the calling user's service manager, rather than the system-wide service manager.

Notes

Note

Examples

- name: start dnscache if not running
  nosh: name=dnscache state=started

- name: stop mpd, if running
  nosh: name=mpd state=stopped

- name: restart unbound or start it if not already running
  nosh:
    name: unbound
    state: restarted

- name: reload fail2ban or start it if not already running
  nosh:
    name: fail2ban
    state: reloaded

- name: disable nsd
  nosh: name=nsd enabled=no

- name: for package installers, set nginx running state according to local enable settings, preset and reset
  nosh: name=nginx preset=True state=reset

- name: reboot the host if nosh is the system manager, would need a "wait_for*" task at least, not recommended as-is
  nosh: name=reboot state=started

- name: using conditionals with the module facts
  tasks:
    - name: obtain information on tinydns service
      nosh: name=tinydns
      register: result

    - name: fail if service not loaded
      fail: msg="The {{ result.name }} service is not loaded"
      when: not result.status

    - name: fail if service is running
      fail: msg="The {{ result.name }} service is running"
      when: result.status and result.status['DaemontoolsEncoreState'] == "running"

Return Values

Common return values are documented here, the following are the fields unique to this module:

Key Returned Description
enabled
boolean
success
whether the service is enabled at system bootstrap

Sample:
True
name
string
success
name used to find the service

Sample:
sshd
preset
boolean
success
whether the enabled status reflects the one set in the relevant *.preset file

service_path
string
success
resolved path for the service

Sample:
/var/sv/sshd
state
string
if state option is used
service process run state, None if the service is not loaded and will not be started

Sample:
reloaded
status
complex
success
a dictionary with the key=value pairs returned by `system-control show-json` or None if the service is not loaded

  After
-

  Before
-

  Conflicts
-

  DaemontoolsEncoreState
-

  DaemontoolsState
-

  Enabled
-

  LogService
-

  MainPID
-

  Paused
-

  ReadyAfterRun
-

  RemainAfterExit
-

  Required-By
-

  RestartExitStatusCode
-

  RestartExitStatusNumber
-

  RestartTimestamp
-

  RestartUTCTimestamp
-

  RunExitStatusCode
-

  RunExitStatusNumber
-

  RunTimestamp
-

  RunUTCTimestamp
-

  StartExitStatusCode
-

  StartExitStatusNumber
-

  StartTimestamp
-

  StartUTCTimestamp
-

  StopExitStatusCode
-

  StopExitStatusNumber
-

  Stopped-By
-

  StopTimestamp
-

  StopUTCTimestamp
-

  Timestamp
-

  UTCTimestamp
-

  Want
-

  Wanted-By
-

  Wants
-

user
boolean
success
whether the user-level service manager is called



Status

Authors

  • Thomas Caravia (@tacatac)

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