systemd – Manage services¶
New in version 2.2.
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 |
|
Run daemon_reexec command before doing any other operations, the systemd manager will serialize the manager state.
aliases: daemon-reexec |
|
daemon_reload
boolean
|
|
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
|
|
Whether the service should start on boot. At least one of state and enabled are required.
|
|
force
boolean
added in 2.6 |
|
Whether to override existing symlinks.
|
|
masked
boolean
|
|
Whether the unit should be masked or not, a masked unit is impossible to start.
|
|
name
-
|
Name of the service. 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 |
|
Do not synchronously wait for the requested operation to finish. Enqueued job will continue without Ansible blocking on its completion.
|
|
scope
-
added in 2.7 |
|
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 (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.
|
|
state
-
|
|
started/stopped are idempotent actions that will not run commands unless necessary. restarted will always bounce the service. reloaded will always reload. |
|
user
boolean
|
|
(deprecated) run ``systemctl`` talking to the service manager of the calling user, rather than the service manager of the system.
This option is deprecated and will eventually be removed in 2.11. The ``scope`` option should be used instead.
|
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’.
Examples¶
- name: Make sure a service is running
systemd:
state: started
name: httpd
- name: stop service cron on debian, if running
systemd:
name: cron
state: stopped
- name: restart service cron on centos, in all cases, also issue daemon-reload to pick up config changes
systemd:
state: restarted
daemon_reload: yes
name: crond
- name: reload service httpd, in all cases
systemd:
name: httpd
state: reloaded
- name: enable service httpd and ensure it is not masked
systemd:
name: httpd
enabled: yes
masked: no
- name: enable a timer for dnf-automatic
systemd:
name: dnf-automatic.timer
state: started
enabled: yes
- name: just force systemd to reread configs (2.4 and above)
systemd:
daemon_reload: yes
- name: just force systemd to re-execute itself (2.8 and above)
systemd:
daemon_reexec: yes
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'}
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Status¶
This module is guaranteed to have no backward incompatible interface changes going forward. [stableinterface]
This module is maintained by the Ansible Core Team. [core]
Red Hat Support¶
More information about Red Hat’s support of this module is available from this Red Hat Knowledge Base article.