ansible.builtin.systemd – Manage services

From Get docs
Ansible/docs/2.11/collections/ansible/builtin/systemd module


ansible.builtin.systemd – Manage services

Note

This module is part of ansible-base and included in all Ansible installations. In most cases, you can use the short module name systemd even without specifying the collections: keyword. Despite that, we recommend you use the FQCN for easy linking to the module documentation and to avoid conflicting with other collections that may have the same module name.


New in version 2.2: of ansible.builtin


Synopsis

  • Controls systemd services on remote hosts.

Requirements

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

  • A system managed by systemd.

Parameters

Parameter Choices/Defaults Comments

daemon_reexec

boolean

added in 2.8 of ansible.builtin

  • no

  • yes

Run daemon_reexec command before doing any other operations, the systemd manager will serialize the manager state.


aliases: daemon-reexec

daemon_reload

boolean

  • no

  • yes

Run daemon-reload before doing any other operations, to make sure systemd has read any changes.

When set to yes, runs daemon-reload even if the module does not start or stop anything.


aliases: daemon-reload

enabled

boolean

  • no
  • yes

Whether the service should start on boot. At least one of state and enabled are required.

force

boolean

added in 2.6 of ansible.builtin

  • no
  • yes

Whether to override existing symlinks.

masked

boolean

  • no
  • yes

Whether the unit should be masked or not, a masked unit is impossible to start.

name

string

Name of the service. This parameter takes the name of exactly one service to work with.

When using in a chroot environment you always need to specify the full name i.e. (crond.service).


aliases: service, unit

no_block

boolean

added in 2.3 of ansible.builtin

  • no

  • yes

Do not synchronously wait for the requested operation to finish. Enqueued job will continue without Ansible blocking on its completion.

scope

string

added in 2.7 of ansible.builtin

  • system

  • user
  • global

Run systemctl within a given service manager scope, either as the default system scope system, the current user's scope user, or the scope of all users global.

For systemd to work with 'user', the executing user must have its own instance of dbus started and accessible (systemd requirement).

The user dbus process is normally started during normal login, but not during the run of Ansible tasks. Otherwise you will probably get a 'Failed to connect to bus: no such file or directory' error.

The user must have access, normally given via setting the ``XDG_RUNTIME_DIR`` variable, see example below.

state

string

  • reloaded
  • restarted
  • started
  • stopped

started/stopped are idempotent actions that will not run commands unless necessary. restarted will always bounce the service. reloaded will always reload.



Notes

Note

  • Since 2.4, one of the following options is required ‘state’, ‘enabled’, ‘masked’, ‘daemon_reload’, (‘daemon_reexec’ since 2.8), and all except ‘daemon_reload’ (and ‘daemon_reexec’ since 2.8) also require ‘name’.
  • Before 2.4 you always required ‘name’.
  • Globs are not supported in name, i.e postgres*.service.
  • Supports check_mode.


Examples

- name: Make sure a service is running
  ansible.builtin.systemd:
    state: started
    name: httpd

- name: Stop service cron on debian, if running
  ansible.builtin.systemd:
    name: cron
    state: stopped

- name: Restart service cron on centos, in all cases, also issue daemon-reload to pick up config changes
  ansible.builtin.systemd:
    state: restarted
    daemon_reload: yes
    name: crond

- name: Reload service httpd, in all cases
  ansible.builtin.systemd:
    name: httpd
    state: reloaded

- name: Enable service httpd and ensure it is not masked
  ansible.builtin.systemd:
    name: httpd
    enabled: yes
    masked: no

- name: Enable a timer for dnf-automatic
  ansible.builtin.systemd:
    name: dnf-automatic.timer
    state: started
    enabled: yes

- name: Just force systemd to reread configs (2.4 and above)
  ansible.builtin.systemd:
    daemon_reload: yes

- name: Just force systemd to re-execute itself (2.8 and above)
  ansible.builtin.systemd:
    daemon_reexec: yes

- name: Run a user service when XDG_RUNTIME_DIR is not set on remote login
  ansible.builtin.systemd:
    name: myservice
    state: started
    scope: user
  environment:
    XDG_RUNTIME_DIR: "/run/user/{{ myuid }}"

Return Values

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

Key Returned Description

status

complex

success

A dictionary with the key=value pairs returned from `systemctl show`.


Sample:

{'ActiveEnterTimestamp': 'Sun 2016-05-15 18:28:49 EDT', 'ActiveEnterTimestampMonotonic': '8135942', 'ActiveExitTimestampMonotonic': '0', 'ActiveState': 'active', 'After': 'auditd.service systemd-user-sessions.service time-sync.target systemd-journald.socket basic.target system.slice', 'AllowIsolate': 'no', 'Before': 'shutdown.target multi-user.target', 'BlockIOAccounting': 'no', 'BlockIOWeight': '1000', 'CPUAccounting': 'no', 'CPUSchedulingPolicy': '0', 'CPUSchedulingPriority': '0', 'CPUSchedulingResetOnFork': 'no', 'CPUShares': '1024', 'CanIsolate': 'no', 'CanReload': 'yes', 'CanStart': 'yes', 'CanStop': 'yes', 'CapabilityBoundingSet': '18446744073709551615', 'ConditionResult': 'yes', 'ConditionTimestamp': 'Sun 2016-05-15 18:28:49 EDT', 'ConditionTimestampMonotonic': '7902742', 'Conflicts': 'shutdown.target', 'ControlGroup': '/system.slice/crond.service', 'ControlPID': '0', 'DefaultDependencies': 'yes', 'Delegate': 'no', 'Description': 'Command Scheduler', 'DevicePolicy': 'auto', 'EnvironmentFile': '/etc/sysconfig/crond (ignore_errors=no)', 'ExecMainCode': '0', 'ExecMainExitTimestampMonotonic': '0', 'ExecMainPID': '595', 'ExecMainStartTimestamp': 'Sun 2016-05-15 18:28:49 EDT', 'ExecMainStartTimestampMonotonic': '8134990', 'ExecMainStatus': '0', 'ExecReload': '{ path=/bin/kill ; argv[]=/bin/kill -HUP $MAINPID ; ignore_errors=no ; start_time=[n/a] ; stop_time=[n/a] ; pid=0 ; code=(null) ; status=0/0 }', 'ExecStart': '{ path=/usr/sbin/crond ; argv[]=/usr/sbin/crond -n $CRONDARGS ; ignore_errors=no ; start_time=[n/a] ; stop_time=[n/a] ; pid=0 ; code=(null) ; status=0/0 }', 'FragmentPath': '/usr/lib/systemd/system/crond.service', 'GuessMainPID': 'yes', 'IOScheduling': '0', 'Id': 'crond.service', 'IgnoreOnIsolate': 'no', 'IgnoreOnSnapshot': 'no', 'IgnoreSIGPIPE': 'yes', 'InactiveEnterTimestampMonotonic': '0', 'InactiveExitTimestamp': 'Sun 2016-05-15 18:28:49 EDT', 'InactiveExitTimestampMonotonic': '8135942', 'JobTimeoutUSec': '0', 'KillMode': 'process', 'KillSignal': '15', 'LimitAS': '18446744073709551615', 'LimitCORE': '18446744073709551615', 'LimitCPU': '18446744073709551615', 'LimitDATA': '18446744073709551615', 'LimitFSIZE': '18446744073709551615', 'LimitLOCKS': '18446744073709551615', 'LimitMEMLOCK': '65536', 'LimitMSGQUEUE': '819200', 'LimitNICE': '0', 'LimitNOFILE': '4096', 'LimitNPROC': '3902', 'LimitRSS': '18446744073709551615', 'LimitRTPRIO': '0', 'LimitRTTIME': '18446744073709551615', 'LimitSIGPENDING': '3902', 'LimitSTACK': '18446744073709551615', 'LoadState': 'loaded', 'MainPID': '595', 'MemoryAccounting': 'no', 'MemoryLimit': '18446744073709551615', 'MountFlags': '0', 'Names': 'crond.service', 'NeedDaemonReload': 'no', 'Nice': '0', 'NoNewPrivileges': 'no', 'NonBlocking': 'no', 'NotifyAccess': 'none', 'OOMScoreAdjust': '0', 'OnFailureIsolate': 'no', 'PermissionsStartOnly': 'no', 'PrivateNetwork': 'no', 'PrivateTmp': 'no', 'RefuseManualStart': 'no', 'RefuseManualStop': 'no', 'RemainAfterExit': 'no', 'Requires': 'basic.target', 'Restart': 'no', 'RestartUSec': '100ms', 'Result': 'success', 'RootDirectoryStartOnly': 'no', 'SameProcessGroup': 'no', 'SecureBits': '0', 'SendSIGHUP': 'no', 'SendSIGKILL': 'yes', 'Slice': 'system.slice', 'StandardError': 'inherit', 'StandardInput': 'null', 'StandardOutput': 'journal', 'StartLimitAction': 'none', 'StartLimitBurst': '5', 'StartLimitInterval': '10000000', 'StatusErrno': '0', 'StopWhenUnneeded': 'no', 'SubState': 'running', 'SyslogLevelPrefix': 'yes', 'SyslogPriority': '30', 'TTYReset': 'no', 'TTYVHangup': 'no', 'TTYVTDisallocate': 'no', 'TimeoutStartUSec': '1min 30s', 'TimeoutStopUSec': '1min 30s', 'TimerSlackNSec': '50000', 'Transient': 'no', 'Type': 'simple', 'UMask': '0022', 'UnitFileState': 'enabled', 'WantedBy': 'multi-user.target', 'Wants': 'system.slice', 'WatchdogTimestampMonotonic': '0', 'WatchdogUSec': '0'}




Authors

  • Ansible Core Team

© 2012–2018 Michael DeHaan
© 2018–2021 Red Hat, Inc.
Licensed under the GNU General Public License version 3.
https://docs.ansible.com/ansible/2.11/collections/ansible/builtin/systemd_module.html